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-   -   TRV950 (& PDx10?) Looks great, less filling. But... (https://www.dvinfo.net/forum/sony-trv950-pdx10-companion/2953-trv950-pdx10-looks-great-less-filling-but.html)

psurfer1 July 31st, 2002 03:24 PM

TRV950 (& PDx10?) Looks great, less filling. But...
 
So I just got the new TRV950. First the good news.

The picture can be really outstanding, actually rivaling the pd150's in good light. It's video quality is way ahead of the trv900/pd100a, and while it's about a good stop slower than the cam it replaced, it's gain is so much cleaner that there's no contest. In any decent level of interior light (say, that you would care to read fine print under), it does fine. Certainly it's capable of making the best video of any small camera out there.

And small it is. Measuring without the lens hood (as w/most small cams specs), it's more like 6 3/4" long, than the 8" spec I've read. Most of it's width is considerably less than 3 3/4", too. Plus, mini Info-lithium's. This is like Half the size of a vx2000 or GL2.

The downside?

Vertical smear. The chipset can't always seem to handle the contrast between a bright source and darker background, without some pretty impressive banding. The owners manual even mentions this twice, in the troubleshooting section. "This is not a malfunction", it says. -Sure.

Is this going to be fixed in the PDx10? I know some of you will be getting that cam, please aim it around some sunny interior windows and report back.

Jeff Donald August 1st, 2002 06:57 AM

Vertical smear is a CCD phenomenon. It can be minimized by optical coatings and the use of 3 CCDs and other filtering methods. But, it never goes away completely.

Jeff

Mike Rehmus August 1st, 2002 11:04 AM

You are correct that the smear is from the CCD technology used in that camera.

3 CCD cameras are just, if not more, as apt to smear as a single CCD camera. But 3CCD cameras are more likely to use smear-resistant CCD technology. As far as I know, only the FIT CCD technology is truly smear-resistant.

Optical coatings can reduce reflection artifacts and therefore reduce 'lens flare-type of distortions. But they do nothing for the vertical smear that is associated with bright lights in the visual field.

If you look at the more expensive cameras, you see them placing brand-names on the side of the camera with regard to the CCDs they use. HAD, Power-HAD, & FIT are some of the names (and technologies) they use.

Jeff Donald August 1st, 2002 02:16 PM

Yes, 3CCDs in and of themselves will not aid the problem. But as you point out more expensive cameras have 3 CCDs and will use better technology to help reduce vertical smear. FIT (frame interline transfer) CCDs reduce vertical smear by as much as 80% to 90% Panasonic claims. FIT CCDs use a masking or filtering technology to prevent the spill over of light from one Photo Diode (PD) to another. Improved multi-coatings on the micro lenses, used on the surface of CCDs, also help reduce vertical smear. But nothing elimates it 100%, which a simple test will prove. Aim your camera at headlights at night and the vertical smear will still be present.

I read an article several years ago about FIT chips having a problem with 16:9 size. I don't know if Panasonic has overcome the problem or if they are moving away from FIT technology as we adopt 16:9 chips.

Jeff

Mike Rehmus August 1st, 2002 07:21 PM

The smearing is not caused by light spilling from one charge site to another but by the discharge of an entire readout shift register IIRC. CCD's are read row by row IIRC and basically, a row gets wiped out by the spread of the discharge caused by the light.

Or some such nonsense. anyway, it is the way that the charge sites (pixels) are read that make the difference in high-brightness sensitivity. The FIT technology costs more and probably has other tradeoffs as well.

psurfer1 August 1st, 2002 07:38 PM

According to the head techn at the local Sony Auth Svc Cntr, he can probably adjust the smear it if it's out, "on any camera". He referred to it as "bloom".
I hope this is true. I was under the impression that only replacing the chipset could make a difference... Any techies know the answer?
It seems a little too easy to induce the smear (looks extra bad when bright red...) on this camera when there's a bright enough window in the frame. Maybe this is just one of those early-production run kinks. Otherwise, this cam is like a stealth pd150. Picture's maybe even a touch better. I'd hate to have to get rid of it already...

psurfer1 August 1st, 2002 09:55 PM

BTW, the tech I spoke to (on the phone) did mention adjusting using a bright 5600°K source behind a slit, so I know at least we're on the same page. I didn't get to talk to him long, but he seemed pretty sure that adjustment was possible, the new-ness of the trv950 to him irrelevant. I asked if the adjstmnts changed the performance of the camera in any other way, and he said No, unless adjusted to the point where there was no picture at all.

The little I know of the technical side of smear I copy below, from Tektronix' site:

>The camera's iris is first adjusted so the output signal is at the reference white level. It is adjusted again until a predetermined smear threshold is met. The F-stop settings at these points are noted and used to derive the result. The result is expressed in*dB, relative to the selected reference white level. The equation used is:

20 log(ref. level/thresh. level) + 20 log(ref. iris/thresh. iris)<

I believe this is just describing measuring a given camera's smear performance. -What can the tech adjust to improve the outcome of that equation, if in fact mine is out of proper adjustmnt?

Mike Rehmus August 1st, 2002 10:05 PM

Not much as it is a function of the CCD. Any adjustment he makes, unless the camera has adjustable image processing capability, will effect the picture in one way or another.

I suspect they can chop the high level of the signal off but only on the output of the CCD.

psurfer1 August 2nd, 2002 12:38 AM

Mike, could you elaborate please.
I do not want something done that will degrade image quality in any way for the sake of diminishing the problem.

Jeff Donald August 2nd, 2002 05:27 AM

Mike,

This is a quote from a Panasonic White Paper on FIT CCD. This quote covers smear "When you shoot object with intense spot light, you may recognize white vertical line appear on above/below it. Such a phenomenon is known as SMEAR from which you can not evade as long as adapting solid state for pick up device instead of vacuum tube. How is SMEAR caused in Charge Coupled Device (CCD) which is most popular solid state pick up device ? The light leaking from PHOTO DIODE (PD) or crossing over it yields electrical carriers below PD (inside of Silicon chip)."

psurfer1,

Bloom is different from smear. If your having problems with saturated colors like red, that is possibly bloom and there are adjustments that can be made that will not effect the overall picture quality. I would send your camera back to Sony.

Jeff

Mike Rehmus August 2nd, 2002 10:59 AM

That may be their white paper but back in the 80's, when my company produced the first digital cameras, the phenomenon was well recognized. It had to do with an excess of electrons bleeding into the readout channels (which themselves are just part of the semiconductor sub-structure) and overwhelming the readout structure. As I recall correctly, the bleed-down of the charge on one array element would effect others connected by virtue of their common read-out.

Furthermore, this phenomenon did not exist in single-line arrays that are, in all other respects, similar to 2-D arrays. In 2-D arrays, the pixel sites are read in rows or columns by shifting the charge out to the charge 'reader' using a bucket-brigade technique. I believe the FIT devices do not use that approach.

In any case, if the solution were to just add optical filters to the arrays, there would not be different CCD technologies. Everyone would just put filters in place and a HAD would be as good as a FIT. Tain't so. Optical filters don't cost so much that Sony wouldn't use FIT on the 1/2 inch and lower-end 2/3 inch cameras. And who among us wouldn't pay more for a PD-150 using FIT instead of HAD?

The easy way to 'fix' the problem, were it light leaking (which does happen, BTW) would be to lay down a neutral density layer around the pixel sites although I believe semiconductor material is a bit opaque anyway. This is the same thing as the neutral density in film backing. It serves to cut down on light spreading through the plastic.

psurfer1 August 2nd, 2002 01:52 PM

All very interesting. But I'm still trying to find out if there is adjustment that a tech can do for the problem of Vertical Smear.

(To repeat, when shooting a contrasty scene w/bright sunlit window in it, I am getting distinct vertical lines - sometimes they are all white, at other times the lines are all red. Sometimes it's very bad in very high-key situations, and it shows as red vertical bands across most of the picture. I am Not talking about oversaturation; there is no red colored subject in the shot at all with this light-show-like effect.)

This is a brand new camera that operates fine in every other regard.

Jeff Donald August 2nd, 2002 05:02 PM

Send the camera to Sony. Sony cameras only have a 90 day warranty for labor. Let their qualified service technicians evaluate your camera. I would document the problem thoroughly. Send a tape that shows the severity of your problem. Sony doesn't want defective products in the market place any more than you want to have a defective camera. So, send it in before your 90 days expires. In my experience Sony is pretty strict on their warranty terms. After 90 days your out of luck for the labor cost and labor is usually the most expensive part of the repair.

Jeff

psurfer1 August 2nd, 2002 09:03 PM

Next week I'll have the local Sony service cntr take a look, but I'm afraid I probably will end up having to send it in, waiting a month or two(?) for it to be sent back with some xerox'd "Sony videography tipsheet", with the line- "...avoid strong contrast" circled in yellow.

Bryan Beasleigh August 3rd, 2002 09:19 PM

Can you return it as defective?

Steven Forrest August 7th, 2002 10:27 PM

Hello. First, sorry about the very long post. I just joined this group and have an extremely high level of this vertical smear in my Sony TRV-950 videos. I just became aware of the problem recently when I played back the first tape I shot (which was on 7/19/02). A few days ago I received an E-mail from another 950 owner who was writing to anyone he could find on the different forums who had the 950 to see if they had the smear problem also. As it turned out, I didn't even realize this was a problem until it was pointed out to me and I looked at the first tape I took, which wasn't until 2 days ago. I got the TRV-950 as soon as it came out (bought 6/26/02--received 7/1/02) but didn't use it to tape anything until 7/19/02. I tried the basic on and off and zooming, etc. when I got the camcorder on 7/1/02 and learned the operating functions, but I didn't shoot any tape until I was on a trip, 7/19/02. Thus I am out of the "7 day return" policy of my vendor and I now find out that the 950 is a defective product that I can't return it to the vendor. I called Sony and eventually (1hr wait) got to talk to a Level 2 specialist who told me on the phone the problem is called "OVERFLOW OF VERTICAL SHIFT". This is all new to me. I just today have found this forum and am reading that this is a problem that many people are having and that the camcorder is obviously defective. Evidently Sony knew this when they put out the camera since they reference the "vertical bands" on page 219 of the operating manual. They never told us that this was a problem before we spent over $2000 on this new high-end camcorder when it came out! Maybe there are varying degrees of this problem but my 950 is completely unusable. There are bands everywhere. I have taken still shots on the memory card and have the original tape which show the lines vividly (ruining the video of my child on the 1 day I could visit her at her 8 week sleep-away camp). I have taken more video now which clearly show the lines that I described to the Sony specialist on the phone. They (Sony) were supposed to contact me by phone to follow up and explain the problem but no one has called back to tell me how to handle this and, that there is a definitive way to solve this problem. From the above notes, it seems that there is no definitive way to solve this problem and thus we all have a defective product. We should be allowed to return the camcorder to Sony, with all the extras, (including the $15+ per 1hr tapes), we bought as well, for a refund! Sony obviously built a defective machine and knew about it before they marketed it. They didn't tell us that we might get "vertical bands" on our videos before we bought the camcorders. They didn't tell us how bad these lines could be. It seems that I am more disgusted about this situation than some who have posted above and this makes me think that either some people are willing to except a defective camcorder or that some units are less likely to cause the vertical smear bands than are other units. Still, we shouldn't have to keep a unit with a know defect and will always produce some of these picture-ruining vertical bands.
Now what are we to do? Do we spread the word on all the forums that the 950 is defective? Do we have a class action suit against Sony? Sony knew the problem existed and still sold the camcorders as their high-end new and improved model. This is really fraud isn't it?
Any responses are welcome. If this is a fixable problem please let me know. Since it sounds like it is only, at most, somewhat adjustable to make the bands show to a lesser degree, I still think we are all entitled to a recall of the units and a real fix or a refund.
Thanks you for reading this very long message. I feel we have to act as a group if we are going to get an adequate response from Sony. But, maybe they will see the error in their ways and will take it upon themselves to resolve the problem with us individually. I find this unlikely. But for now I am going to give Sony the benefit of the doubt.
Steven Forrest

Jeff Donald August 8th, 2002 02:56 AM

All CCD's produce vertical bands (smear). It is referred to as a phenomenon, it is a by product of the technology. All CCD, no matter what make, model etc procuce smear. Cars produce carbon monoxide. It's a by product of the internal combustion engine. If you feel the amount of smear is excessive, send the camera back to Sony, with copies of tapes, stills etc showing the severity of the problem. Smear cannot be eliminated, but it can be brought into range that should be tolerable.

Jeff

Steven Forrest August 8th, 2002 10:52 AM

Jeff,

Are you saying then that the TRV-950 CAN be brought into a range where the vertical smear is minimal? Is it simply an adjustment or is it a major replacemnt of out of tolerance parts?

I will be very happy if Sony CAN fix my 950 as I do like it. I just cannot tolerate the extreme vertical bands I am gettng with many shots in my everyday shooting.

First though, don't we need to know that the 950 is capable of minimizing the smear problem if adjusted properly, and also that the technicians at the repair facility where I send my camcorder know about the problem and know how and what to fix?

I'm sure I'm not to first to be really upset by the problem and I assume that others have contacted Sony about it. When I called them though, even the level 2 specialist I spoke with didn't know of the problem and didn't even know what it was called. It wasn't until he researched it and spoke with higher level people did he call me back (early on in my dealings with them) and tell me I had a problem with "OVERFLOW OF VERTICAL SHIFT". He did say he didn't know what to do and said someone else more technical would contact me. I await a call from them. But more importantly, how can we be sure that the information about the problem and way to fix it (if it exists) is distributed to the representatives and repair personel at Sony and that I and others don't waste a lot of time and money and still end up with a defective picture?

I know there is probably no answer to the last comment, but if there ARE good camcorders out there, shouldn't Sony exchange our defective ones quickly with those, and worry about fixing our defective (or out of spec.) ones later?

Thanks for your input.

Steve

Jeff Donald August 8th, 2002 04:29 PM

Steve,

Vertical banding is NORMAL under some conditions. All CCD cameras will produce SMEAR (vertical banding). SMEAR should not be present in all conditions. If your camcorder is producing an excessive amount of SMEAR, Sony technicians will be able to make adjusts to bring the camcorder into Sony specs. Phone support people are not the repair technicians. If the repair technicians talked on the phone, no cameras would ever get fixed. Phone support, as you found out, sometimes have a limited knowledge of repair problems. If every camera was producing EXCESSIVE SMEAR they would be more knowledgeable about it. As I said in my first post, send tapes that show the severity of the problem. If your sending original tapes, have it stopped at the part that shows the SMEAR. Send a detailed letter with an explanation of the nature of the problem and under what conditions it occurs and reference it to the tape your sending. Sony technicians are very good. If a problem does exist, they will be able to diagnosis the problem, and repair it to Sony specs. Remember, SMEAR will occur under some conditions and ALL camcorders will produce some level of SMEAR.

Jeff

Steven Forrest August 8th, 2002 04:57 PM

Thanks for your comments Jeff.

The problem, as I see it, is that many people with the 950 are seeing smear. Sony has just not heard from them yet. My initial contact was made by a man named Peter, who was privately E-mailing as many 950 users as he could, finding their names on the various web forums. He then asked the question: Are you finding the vertical banding in your videos and to what degree? He has a large collection of people seeing the smear to an excessive degree. More that a small sample of 950 users would normally show. This is what is worrisome. Peter and I both hope Sony can find a way to adjust the 950 to minimize the smear. Until they do, however, many more people will begin to report to Sony of the excessive smear problem with the 950.

Incidentally, which Sony repair center would you recommend we use?

Thanks.

Steve

Jeff Donald August 8th, 2002 05:21 PM

Steve,

Don't get me wrong, but I haven't seen a single image posted of the alledged excessive SMEAR. I haven't heard anyone say they have 20 years experience in TV and the SMEAR is the worst they've ever seen. But I am reading posts (here and elsewhere) by relative novices who are shocked by the presence of SMEAR. These people spent alot of money on these Sony's and they expected video nirvana. Well, their unrealistic expections are now dashed by a dose of reality and the compromises video forces upon us. Striking out at Sony is not the answer. They can't defy the Laws of Physics better than any other mfg. Send your camera into Sony to have it checked, if it's out of spec they will adjust it. This should give you a little peace of mind. In the meantime read the many post here on the limitations of video as a medium. Do a search on contrast or film and start reading. Your not alone. You'll have many questions and when you can't find the answer just ask. People are always here to help. Post another question to this forum about what location to send your camera and I'm sure you'll get some help.

Jeff

Steven Forrest August 8th, 2002 06:26 PM

Jeff, you are 100% correct. I am a novice who bought a $2000+ camcorder and $500+ of accessories and didn't know what to expect. If I had it to do over again, I just would have stayed with my 15 year old 8mm camcorder for the limited times I actually will now use the 950. I didn't realize that there were problems like this. It is amazing that no review mentioned that CCD camcorders had this smear problem and that none who checked out the 950 saw what many of us novices are seeing as excessive banding. I wish I had seen this forum before spending all this money. I didn't need the camcorder in the first place and I guess this is my reward. I am learning a lot, the hard way! To me, a high-end consumer or "prosumer" camcorder should be able to work on auto without any problem in most situations. No, I'm not saying we will get perfect videos. I probably will get terrible ones. But the lines seen with this camcorder, which was the only one I have considered buying in years, are a bit much for me to take. I shouldn't need to send my new "prosumer" camcorder back to Sony for a tune up, out of the box. It should have been built so that the novice, who wants the best quality for a price point, can get overall good quality with out any interventions. There are obviously more vertical banding problems with the 950 than with the previous Sony "prosumer" camcorders. No review I read on the 900 or VX2000 mentioned vertical smear as something to watch out for. Sony should let consumers know that vertical smear is a problem to look for in some cases. I would have done it on day 1 and sent the camcorder back then. I didn't even know vertical smear existed until now. So I object to the marketing of expensive camcorders, mentioning all the great new features, but never once mentioning that with this high-end camcorder, vertical smear may be a problem in some circumstances. I would have looked at what kind of video I was going to shoot and then would have decided if the amount of vertical smear that resulted was acceptable. Then I would have made an informed decision as to my purchase of it. Sure I can read all about it now. I can learn all kinds of details about overflow of vertical shift and I can become an expert on the new camcorders being sold today. But I trusted Sony's reputation as the company that made the best "prosumer" camcorders and when the 900 was being replaced by the "even better" 950, I jumped on it and bought it and all that went along with it. Blindly!
So, I appreciate your good intentions Jeff and your very knowledgeable posts, but it still doesn't make me feel better. I still have to accept a camcorder that does something I didn't know it could or would do, and that is frustrating. I was the typical uninformed consumer. Usually most people don't get burnt by their uninformed purchases, either because they don't know something is right or wrong with them or they are willing to accept their limitations. I am not willing to accept what I am seeing produced by my TRV-950. I wasn't aware of its limitations or potential problems and I am not willing to live with its poor pictures, in everyday lighting situations.
Sony knows this. I am waiting on what they want to do for me.
So all, when Sony tells me to send my new "prosumer" camcorder in for repair or "adjustment", where should I send it for the fastest and the best service possible?
Steve

Jeff Donald August 9th, 2002 05:37 AM

I would ask Sony that question. Only they will know the back log of repairs and delays and their repair centers. They may even try to expedite your repair. It never hurts to ask. Good luck and let me know how things work out.

Jeff

Kenn Jolemore August 10th, 2002 10:33 AM

Sounds like Forrests' camcorder is one of the really bad ones and might need to be replaced . I ran mine through many tests for banding in high contrast situations and got only one reaction worth note. I am sure Sony will take care of the problem as soon as it has the camcorder in possesion and is able to work on it. I am fortunate to have one that needs no assistance as it works great and does a fine job by me.
Best thing to do for anyone with problems as bad a Forrests' is to send in the camcordedr and have it repaired or replaced while the warrenty is active.Good luck and keep us posted please.

Mike Rehmus August 10th, 2002 11:04 AM

The one thing you want to do is make a tape that demonstrates your problem(s) with the camcorder. Ship it with the camera (not in it) along with a letter defining your issues in as great a detail as you can.

I've sent several cameras into Sony and the only disappointing repair job I received was where I did not document the image problem in this manner.

Oh, one last thing. Document what you ship to them in the letter INCLUDING THE SHIPPING BOX (use the original box or they may make a negative comment about shipping damage as they did to me). Fortunately, they lost my box the first time they had the camera and I returned the camera (again) in the same packaging they used.

Document, document, document.

And keep a log of your discussions and actions. With whom, when and the details of the conversation. In many states, the manufacturers warranty gets extended/expanded by local consumer protection laws.

For example: In California, the manufacturer's warranty is extended until they repair a problem that occurs in the original warranty period. And they only get a set number of times to attempt repairs before you can declare the product a 'Lemon' and force them to replace it. Oregon surely has similar laws.

Timing and documentation make all the difference in these cases.

Steven Forrest August 11th, 2002 03:06 PM

Thank you all for the information and insights. Sony will get back to me, so they say, early this week, as to how they want to handle my camcorder. I will ask that they just send me a NEW camcorder as a replacement. I do not want a refurbished one! It sounds like some are OK and I would like a later production one or if they want to be sure I don't get one with a repeat of the problem, a NEW one that has been thoroughly checked out by a Sony Technician. I think I have raised enough of a stink that they may do that to get me to be quiet.
I appreciate how everyone in this group has helped me with this. I really like the 950 and would hate to return it because Sony will not cooperate, and get me unit that is acceptable.
I will keep this thread informed as things go on with my 950.
Thanks.
Steve

Steven Forrest August 11th, 2002 09:32 PM

After re-reading some posts from Jeff, I thought I would send him some JPEGS from the video took with my TRV-950. I await his opinion on the amount of vertical smear. Is it excessive or is that to be expected? If it is "smear with-in normal limits", then I guess I will try to exit this "prosumer" video field and wait until units with less smear are developed.
I hope Jeff gets the pictures and has a chance to examine them. Since he seems to know a lot about smear, and since he said he hasn't seen any pictures with the smear, I thought sending him some JPEGS would illuminate the problem to me, and let me know what to expect from the TRV-950.
Thanks to all and thanks to Jeff (I hope he will look at the pictures).
Steve

Jeff Donald August 12th, 2002 04:39 PM

Steve has been kind enough to share 11 jpegs with me that he feels are showing excessive SMEAR. This is partly in response to my post stating I had not seen any images showing excessive SMEAR. After careful examination of the scenes I feel 9 of the 11 images show normal amounts of SMEAR. The scenes are extremely backlit and show strong vertical streaks. This response to strong backlighting is typical and normal for single and 3 chip CCD. It is typical in consumer and pro-sumer camcorders. Two images, I feel, may be showing slightly higher levels of SMEAR than normal. The camcorder should be sent back to Sony for a more objective evaluation and thorough diagnostics that only a mfg. can provide. Sony faces a very large customer service issue with Steve and I hope he keeps us posted on his efforts with Sony and the final outcome. Good luck, Steve.

Jeff

Mike Rehmus August 12th, 2002 05:13 PM

Jeff sent the pictures to me as well.

I think the streaks are to be expected given the lighting ratios that are apparent in the pictures.

Besides the streaks, the images are affected by fairly severe lens flare which is typical of lower cost lens.

I've got an old $10,000 (body) industrial Hi-8 camera (EVW-300) that does not have this problem. It has the same CCD's that are found in the DSR-300, the Sony Hyper-HADs. The Fujinon lens ($3,000) has much less flare as well. But one could buy four of the 950's for the price of this one camera.

Bottom line in my opinion is that this 950 may be a heavy streaker but in those conditions, it won't get a whole lot better.

I've not hit my PD-150 with this level of luminance ratios. In the next few days, I'll try all of my video cameras and see what they do.

I'd be pleased if Sony proves me wrong, Steve.

Steven Forrest August 12th, 2002 05:25 PM

Thanks guys for your responses. Not quite what I wanted to hear but for now, Sony is doing their best to check out my issue. They have issued a FedEx overnight call tag to expedite the return of my camcorder to their technician in San Diego. We will see what his verdict is and what Sony does after that.
I'll keep you posted.
Steve

Craig Peer August 12th, 2002 05:45 PM

Doesn't the 950 have the small 1/6" ccd's? Perhaps smear is the smaller ccd's weak spot compared to the larger ( 1/4" and up ) ccd!

Jeff Donald August 12th, 2002 06:03 PM

The TRV 950 uses 1/4.7 inch CCD (3) with 690k pixels available for video and 1,000k for still photography. Smear is not related to the size CCD's, but rather, as Mike and I discussed above, electrical current leaking.

Jeff

Mike Rehmus August 12th, 2002 06:17 PM

Them paying the shipping bill is more than they did for me when my PD-150 packed it in after 6 hours of operation. I had to pay a lot to get it down to Atlanta.

At least they are responding.

BTW, you know a reflector or a small on-camera light would probably clear up the problem by reducing the luminance ratio?

Steven Forrest August 12th, 2002 06:40 PM

Mike,
I can be pretty persuasive and if I get the right representative, I often get them to do things for me like pay for the shipping back to them. Other less aggressive people might not get all they are entitled to.
In any case, could you explain the way a small light on the camera could help reduce the vertical smear? Over what kind of distance would the light help reduce the smear? Probably not when the strong light is across the gym and the subject is on the gym floor, would it?
Thanks.
Steve

Mike Rehmus August 13th, 2002 12:17 AM

The light would help on the closeups that I saw. What you are trying to do is reduce the lighting ratio. Since the closeups are just that, the small light, being close, will allow you (or the camera on auto mode) to close down a bit, perhaps avoiding the streaks. Only way to find out is to try it. At some level of on-camera light, the ratio will be acceptable (e.g., the light will not overdrive the CCDs)

You would need quite a strong light to fill in the gym floor. The best solution for the gym is to not include the windows in your framing. The foreground is probably more interesting anyway.

Kenn Jolemore August 13th, 2002 05:09 AM

As a short aside to correct any thoughts garnered from this post that the trv-950's all have this problem I want to interject the other side of the coin . After being contacted by another 950 user on this problem I spent the morning and afternoon hours of the day trying to get my 950 to show similar problems. I suceeeded in getting 1 setup(one I would never use to frame a shot BTW) that caused a few red lines to show in the area between the light(strong early morning sun through a large window) and shadow.
Like all products manufactured these days all you can do is buy from a vender who will accept returns if you get a bad camcorder and check you equiptment well as soon as you recieve it. Short of that don't buy on-line and check your goods before you leave the store.

Steven Forrest August 13th, 2002 07:33 AM

Kenn,
The other " 950 owner" who you refer to is probably the same person who contacted me. We have both pursued the problem with our camcorders and thus have gotten Sony to respond in a very responsible way. They will have our camcorders picked up by FedEx at our homes today and sent overnight to Sony in San Diego. There, they will be examined by a camcorder specialist. The extent of the problem with each of our units will be determined and the course of action for each of us will be planned. We are both very happy with this action by Sony and so far feel that they really do want us to have good camcorders. Hopefully we both will end up with 950s like yours that have minimal, if any, smear problem.

Mike,
Thanks for the light input. About the gym pictures, after an initial shot of the gym with the high windows overwhelming the top of the picture and causing the smear, I then panned downwards and only had the floor and kids on it, without the windows. The lines persisted though. Once you get the smear, you seem to have it all the time. Would stopping the shot and then restarting on the floor only, without the windows in the frame at all, have prevented some of the smear do you think? If so, I guess the way we set-up shots is really vital in getting good pictures form the 950!
Thanks.
Steve

Mike Rehmus August 13th, 2002 10:38 AM

I would expect the CCDs to recover fairly quickly (immediately in fact) and the streaks to disappear without stopping the recording.
Grasping at straws here, could it be that lens flare is that strong in that camera? Do you have any filters on the front of the camera? A dirty lens? (no offense intended but a lens out near the beach, for example, will get a film on the front surface after a while.)

If Sony comes back with a fix. Try and ask them what was wrong in terms that are meaningful to all of us.

At separate occasions, bot with a VX-1000 and a PC-110 I have shot into light so strong that the viewfinder displays a negative color image (no the sun was not in the shot but the lens flare was that strong). The recorded image was much better than what i saw in the viewfinder and the cameras recovered as fast as I could point the lens another direction. These were must-have shots of actors and we completed the scenes before I moved the camera.

Steven Forrest August 13th, 2002 11:26 AM

Mike,
I'm pretty sure my lens was clean but maybe some sort of filter would be helpful. Any suggestions from anyone on a good all around filter to use to cut down on lens flare or smearing due to the CCDs?
I wonder if a larger lens shade would be helpful? I'm not sure if the shade comes off and could be replaced. I've already packed the unit up for shippment back to Sony so I can't check this out now. Does anyone know?
Thanks.
Steve

Mike Rehmus August 13th, 2002 11:37 AM

It would have had to have been quite dirty. On the level that your windshield gets when the car has been in the sun all day.

A filter won't stop the streaks or flare. But it could contribute if it were not anti-reflection coated.

One normally runs a clear filter on the front of the lens to intercept dirt and scratches before they get to the lens.

I expect the lens shade to be removable but it is probably at max size now for your wide angle. One can get very expensive attachments to stop the stray light that does not image but hits the lens. That should not be required.


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