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-   -   Z5/1000 Autofocus-The Anti-Christ of Face Detection? (https://www.dvinfo.net/forum/sony-hvr-z5-hdr-fx1000/143877-z5-1000-autofocus-anti-christ-face-detection.html)

Jeff Harper February 19th, 2009 04:53 PM

BTW Tim, don't think I hadn't already thought of mixing these two cams! I guess great (or insane) minds think alike.

After I did my investigation on the idea, which was before I even received my first FX1000, I came to the conclusion the different look of the cams would be too much for me.

Tim Akin February 19th, 2009 06:34 PM

Quote:

Originally Posted by Jeff Harper (Post 1014735)
BTW Tim, don't think I hadn't already thought of mixing these two cams! I guess great (or insane) minds think alike.

After I did my investigation on the idea, which was before I even received my first FX1000, I came to the conclusion the different look of the cams would be too much for me.


For me, 'INSANE' would be correct.

Martin Duffy February 20th, 2009 02:13 AM

Identical cams a must
 
After I did my investigation on the idea, which was before I even received my first FX1000, I came to the conclusion the different look of the cams would be too much for me.[/QUOTE]



I can't agree more here. Last dance season my videos looked fantastic as we rean identical cameras (Panasonic DVC62 & DC30 - same lens)

This past Nov/Dec I mixed a Canon with Z1 and Z5's and it was much more difficult getting consistency.

We run a headset and what works well for us is to talk each other through the F stop settings. I run a monitor feed of the other camera so I can check the B cams framing and check out focus and F stop.

Its amazing and a bit of fun saying hey "Are we a bit hot" I am on 3.4 or no mate lets go 2.8. Between the two of you you end up getting it right.

Ken Ross February 20th, 2009 10:37 PM

I don't know if you guys saw the completed review of the FX1000 on CCI, but it's up on their site.

On the positive side they felt the overall image quality was comparable to the twice as expensive Canon that they compared it to. They mentioned the resolution of the 1000 was simply unbelievable and soundly trounced the Canon. This provided better static and motion clarity with less blurring.

On the negative side, and something I can't begin to understand having seen the output of both cameras, they felt the low-light of the Canon was better!!! HUH? The Canon is clearly more laden with low-light noise than the much cleaner FX1000/Z5 in typical low-light conditions. Their conclusion was based on using NO gain in low light scenes and measuring the resulting brightness. In my opinion that's a totally unrealistic methodology to determine low-light capability, especially with a camera that produces so relatively little noise with gain levels up to +9 to +12db.

Once the cameras are used as they would be in normal situations (with gain), the Sony is clearly the better low-light performer...no contest. In fact most Canon owners acknowledge this fact.

They did criticize (and I would agree) the small buttons and rather difficult access to these buttons. However, most owners would adjust to these buttons and I would think this would become less of an issue with time. But the Canon is a bigger camera and therefore has more real estate for better button layout. It's a give and take.

With all this, they did conclude that they were surprised at how well the 1000 stood up to the much more expensive Canon, producing a comparable picture. It should also be mentioned that a number of their negative findings would be eliminated with the Z5 with its better manual adjustments and inputs/outputs.

Jeff Harper February 21st, 2009 03:13 AM

Thanks for pointing out the review, Ken.

I don't know about many of the specifics of the review, but much of it is muddied because the reviewer only compared it to the pro version of the Canon and to a higher end Panasonic AG-HVX200.

I agree with much of the review. The buttons and controls are terribly placed and awkward, but most everyone has acknowledged that already.

As said before, the camera is not as good as some say, and not as bad as others say.

To me the LCD is valuable, as it is pretty true and I find that feature alone can be a justification for the cam.

The review overall left me yawning.

If the review addressed the responsiveness of the auto focus, I missed it. That would not normally be overlooked in a professional review.

This was not as exhaustive of a review as I would have preferred to see. And comparison to the FX1000's closest priced competition, the Panasonic 150 is a glaring omission that IMO makes the review less relevant than it could have been.

Steve Wolla February 21st, 2009 03:22 AM

Ken,

re the Panasonic I would refer you to the Panasonic Avccam forum, check out Mark Von Lanken and others comments as to how they compare. It is quite competitive with the Sony and Canon.

With respect to the Canon XLH1A (not XHA1) vs. Sony FX1000....if you read the whole report they also say the Canon did better in low light (!!!), had less noise, etc...resolution of 900 lines vs 800 on the Canon notwithstanding. But so what.

The Sony FX1000 is a great cam in its own right. Very well balanced, great picture, very cost effective, etc. With all due respect, is it relevant how it compares to a $6000 Canon?

Jeff Harper February 21st, 2009 04:17 AM

I absolutely agree Steve, so what?

Regarding Mark, he has said the Panasonic is the finest camera he's ever used. It is a serious contender no doubt. For the money, considering the pro audio, it is a great buy also, possibly a better buy.

I am shooting tomorrow with my FX1000s. And while I would love to have tried out the Pansonic before buying the Sony, and I know the FX1000 is not the VX2100 reincarnated as I had hoped it would be, I'm STILL looking forward to shooting with it. It does do some nice work. From the beginning I have alternated between liking the camera and finding it so-so.

Ken Ross February 21st, 2009 10:10 AM

Quote:

Originally Posted by Jeff Harper (Post 1015635)
If the review addressed the responsiveness of the auto focus, I missed it. That would not normally be overlooked in a professional review.

Jeff, there were several strange discussions in that review (pretty much par for the course for CCI). One was the autofocus...they did comment on it and they said it was wonderful! Huh??? I guess we must all have different cameras than the one they checked out. I had my first shoot with the Z5 and, for the most part, the autofocus worked fine. But oh baby, when there was a face to capture, I immediately switched over to manual. These cams just don't like faces and that's why I started this thread. I've already learned how to work around it, so I don't find it a big deal anymore, but to ignore this failing is pretty absurd. It seems to have little problems focusing on other things, but you need to exercise care with faces. So how they came to the conclusion that the autofocus was wonderful is beyond me. The Canon's all have 'wonderful' autofocus, but not the Sonys. In fact I've never owned a Sony cam whose autofocus I would say was 'wonderful'.

I agree with you Jeff, I don't know why they chose a cam that's 2X the price to compare. They should have chosen the similar, less expensive version of that Canon (without interchangeable lenses). But then again, I've heard the image on both is comparable, so that may have been their rationale.

The biggest gripe I had with that review though was how they characterized the low-light. To me it's utterly absurd to keep the camera on zero gain and see how bright the image is in poor light. If your gain is well-engineered as it is in the Sony, why in God's name wouldn't you use gain up to 9 or 12 db??? When you do that, the Sony just blows the Canon away. I'm certain that the vast majority of people using these cams does just that. The Canon shows significantly more noise at a similair gain setting than the Sony. So why handicap the Sony by not factoring this in? So for them to come to the conclusion that the low-light of the Canon was better than the Sony, was one of the worst conclusions I've seen in any review on any camera.

These are just some of the reasons I've always taken CCI reviews with more than a grain of salt.

Ken Ross February 21st, 2009 10:11 AM

Quote:

Originally Posted by Jeff Harper (Post 1015639)
Stelios go here

Sony Handycam HDR-FX1000 Camcorder Review - Sony HDV Camcorders

The advertisements betweeen every page are quite tedious, and one of the reasons I do not visit Camorder Info any longer.

Jeff, you can click on the links at the top of each page and bypass the ads.

Ken Ross February 21st, 2009 10:21 AM

Quote:

Originally Posted by Jeff Harper (Post 1015660)
And while I would love to have tried out the Pansonic before buying the Sony, and I know the FX1000 is not the VX2100 reincarnated as I had hoped it would be, I'm STILL looking forward to shooting with it. It does do some nice work. From the beginning I have alternated between liking the camera and finding it so-so.

Jeff, I really disagree with you on this one. Having both the VX2100 (and a VX2000), I find the Z5 to be a far superior camera. It's puts out an unquestionably better SD image, with much better exposure latitude, better colors and an overall sharper image. I did many many A/Bs with my Z5 & 2100 and I was very happy to see how much better the image was. I will definitely prefer using it over the 2100 even for SD work. I'm still learning the cam, but I'm already getting a superior image. I'll be getting the digital card recorder next week, and that will make for a tremendous combo. You can have what is essentially a tapeless work flow if you so desire or a combination of both. You can't beat that.

Yes, the Z5 is a more difficult camera to operate than the 2100, but a much more sophisticated camcorder will be. You have tons more control over the image than the 2100 could ever hope to offer and you're rewarded with a better image. As you grow in this profession, you have to adjust to more controls as you change over to more sophisticated equipment.

Igor Garber February 21st, 2009 12:16 PM

I don't know, the focusing on mine seems OK, but I guess different people have different expectations. I think it's a bit better then my VX2100 was, if you consider one thing:

You are now shooting in widescreen, versus 4:3. The focus on both VX2100 and FX1000 seems (to me) to be center-weighted. Now that I'm using 16:9, there's less of a chance of my subject being always in the center. This prompted me to open a thread a while back on how to do use autofocus with such composition techniques. Jeff Harper's answer was right on: use AF ASSIST feature of FX1000. Using this feature gave me full control over the frame. I can focus on the upfront subject and then use the focus ring to snap to a person behind them without moving the camera. It's a very professional looking effect.

So far I'm very happy with the FX1000, but I have nothing to compare it to as far as HDV goes. I'm just saying that for me it was a worthy upgrade from VX2100.

Jeff Harper February 21st, 2009 02:10 PM

You'll here me criticize it, but it is a nice camera and I feel lucky to have two of them. I'll feel luckier if I can replace one with a Z7 though.

Stelios Christofides February 21st, 2009 04:27 PM

Quote:

Originally Posted by Jeff Harper (Post 1015639)
The advertisements between every page are quite tedious, and one of the reasons I do not visit Camcorder Info any longer.

Same here Jeff. Quite pathetic actually.

Stelios

Roy Gates February 21st, 2009 07:09 PM

Quote:

Originally Posted by Martin Duffy (Post 1013093)
To anyone that's about to post along the lines of "professionals should always be in manual focus" well I say get up with it.

Auto focus has become a very useable function and seasoned cameramen from the old school are now seeing the benefits of it.

I hate to burst your bubble, but you do realize that most real pro cameras (Betacams, etc) don't even come with autofocus. Wonder why?

Ken Ross February 21st, 2009 07:31 PM

Quote:

Originally Posted by Igor Garber (Post 1015836)
I don't know, the focusing on mine seems OK, but I guess different people have different expectations. I think it's a bit better then my VX2100 was, if you consider one thing:

Igor, it's interesting, but I've been having less trouble with the Z5 autofocus than I had been. I think that's because I'm learning the situations where the autofocus will go south and anticipating it. For those situations I choose manual focus or focus assist.

I've shot in HD for two days now in San Francisco, and I would say the autofocus has worked perfectly 95% of the time. It's that other 5% that threw me when I first got the camera since I don't recall my 2100 behaving that way. When I need to focus on a face and see anything with any detail in the background, I know the autofocus will probably go wonky.

As long as I have a reliable work-around, I'm OK.

John Gayman February 22nd, 2009 09:33 PM

Quote:

Originally Posted by Igor Garber (Post 1015836)
I Jeff Harper's answer was right on: use AF ASSIST feature of FX1000. Using this feature gave me full control over the frame. I can focus on the upfront subject and then use the focus ring to snap to a person behind them without moving the camera. It's a very professional looking effect.

How do you use that technique when shooting fast moving action like a hockey game from ice level?

Martin Duffy February 22nd, 2009 11:28 PM

auto can be handy
 
Quote:

Originally Posted by Roy Gates (Post 1015999)
I hate to burst your bubble, but you do realize that most real pro cameras (Betacams, etc) don't even come with autofocus. Wonder why?


Roy, well I hate to burst your bubble but a very well respected TV cameraman of 25 yrs plus here in Australia is new to the smaller DV cameras and says he just loves the option of going AUTO focus.

In the heat of the moment when the battery is flashing FLAT, the bride is coming down the aisle and its all a mad situation auto can be great. Don't you agree?

I do understand your reservations about being "all auto".

Ken Ross February 23rd, 2009 06:58 AM

In response to John's question about videotaping a hockey game, I would normally have thought a smaller f-stop would have taken care of depth of field issues, making focus less of a headache. But I've found the Z5 isn't particularly sharp at smaller f-stops and those should be avoided for maximum picture quality.

On the other hand, the jerseys that are worn by the players should provide something more substantial for the autofocus to lock on to rather than a nebulous face...something these autofocuses don't like. So for a hockey game, you might be fine.

I'm telling you, if Sony had provided 'face detection' for these cams, they would be nearly perfect in my opinion.

John Gayman February 23rd, 2009 10:23 AM

Quote:

Originally Posted by Ken Ross (Post 1016784)
In response to John's question about videotaping a hockey game, I would normally have thought a smaller f-stop would have taken care of depth of field issues, making focus less of a headache. But I've found the Z5 isn't particularly sharp at smaller f-stops and those should be avoided for maximum picture quality.

I was using the hockey game example to illustrate a typical scenario with very fast moving subjects that requires AF. I've shot hockey at ice level through the glass (clean section) with my VX2100 and I am able to track a speeding hockey player as he skates towards me right to the point where he smashes against the glass in front of me.

Obviously shooting hockey from high above would require very little AF performance and could probably be shot with manual focus.

I've been holding off buying an HD camera until I can get something with similar AF peformance.

Ken Ross February 23rd, 2009 10:45 AM

But John my thought was that the Z5 might well be able to focus on hockey players as a result of detail in their uniforms. You're not really focusing on the face per se, but rather the entire player, uniform and all.

I don't think the Z5 would have an issue with that, but you'd want to make sure prior to purchase.

Khoi Pham February 23rd, 2009 11:25 AM

Quote:

Originally Posted by John Gayman (Post 1016890)
I was using the hockey game example to illustrate a typical scenario with very fast moving subjects that requires AF. I've shot hockey at ice level through the glass (clean section) with my VX2100 and I am able to track a speeding hockey player as he skates towards me right to the point where he smashes against the glass in front of me.

Obviously shooting hockey from high above would require very little AF performance and could probably be shot with manual focus.

I've been holding off buying an HD camera until I can get something with similar AF peformance.

You could be holding off 4ever, I said before that focusing in SD is very forgiven, even if you are a litte out of focus it is very hard to see, but in HD a little out of focus and it is so obvious.

John Gayman February 24th, 2009 09:00 AM

Quote:

Originally Posted by Khoi Pham (Post 1016932)
You could be holding off 4ever, I said before that focusing in SD is very forgiven, even if you are a litte out of focus it is very hard to see, but in HD a little out of focus and it is so obvious.

That thought has crossed my mind. Perhaps I should simply pick up another VX2100 and continue to shoot 4:3 SD the next 5-years. I'm assuming that razor sharp SD material will be preferred over out-of-focus HD material. Sure keeps the workflow fast and simple. :-)

Jeff Harper February 24th, 2009 09:15 AM

You know John, I had a prospect in my studio last week. We were watching an older wedding video of mine shot outdoors with the 2100, and the footage was mixed with professional wedding photos.

The photos and my video matched almost perfectly, it was really stunning footage, IMO, as I often found with the VX2100.

The customer asked if it was HD.

It was 4:3, unstretched, bars on the side, but it looked THAT good. In perfect light, the HD of the FX1000 is fantastic, and it is HD, of course.

But pound for pound, I say the VX2100 is still the wedding cam to beat. My prospects are still blown away by the images.

Is there a 16:9 CCD camcorder equivalent to the VX2100? If there is that might be an intermediate option for you.

Tim Akin February 24th, 2009 09:21 AM

Quote:

Originally Posted by John Gayman (Post 1017528)
That thought has crossed my mind. Perhaps I should simply pick up another VX2100 and continue to shoot 4:3 SD the next 5-years. I'm assuming that razor sharp SD material will be preferred over out-of-focus HD material. Sure keeps the workflow fast and simple. :-)

I have a 1 year old 2100 that will be going up for sale soon. :-)

Todd Clark February 24th, 2009 09:46 AM

Quote:

Originally Posted by Jeff Harper (Post 1017536)
You know John, I had a prospect in my studio last week. We were watching an older wedding video of mine shot outdoors with the 2100, and the footage was mixed with professional wedding photos.

The photos and my video matched almost perfectly, it was really stunning footage, IMO, as I often found with the VX2100.

The customer asked if it was HD.

It was 4:3, unstretched, bars on the side, but it looked THAT good. In perfect light, the HD of the FX1000 is fantastic, and it is HD, of course.

But pound for pound, I say the VX2100 is still the wedding cam to beat. My prospects are still blown away by the images.

Is there a 16:9 CCD camcorder equivalent to the VX2100? If there is that might be an intermediate option for you.

That might be the way to go.

Ken Ross February 24th, 2009 04:05 PM

Quote:

Originally Posted by Jeff Harper (Post 1017536)
But pound for pound, I say the VX2100 is still the wedding cam to beat. My prospects are still blown away by the images.

Is there a 16:9 CCD camcorder equivalent to the VX2100? If there is that might be an intermediate option for you.

I'll tell you Jeff, I'll match the 4:3 SD video of the Z5 any single day against my VX2100. It is simply beter in every respect: Color-check, sharpness-check, resolution-check, exposure latitude-check, low-light-check. It is simply a more professional looking 4:3 SD image.

Jeff Harper February 24th, 2009 04:15 PM

That may be well and good, but my comments are directed at Todd, who is looking for a camera. He does not seem enamored with CMOS or rolling shutter. I don't think he or anyone would buy a FX1000 or Z5 so that he can shoot great SD...it would be pointless.

And besides I said pound for pound. If I'm going to shoot SD I'm not going to spend $3.2K when I could buy a VX2100 for $1200.

He had mentioned getting another 2100, so that is the context my comment was made in.

Greg Laves February 24th, 2009 05:03 PM

Quote:

Originally Posted by Jeff Harper (Post 1017536)
Is there a 16:9 CCD camcorder equivalent to the VX2100? If there is that might be an intermediate option for you.

You should be able to find some good used broadcast style camcorders that shoot in DVCam and are 4x3/16x9 switchable. They are CCD cameras and will produce stunning SD 16x9 images. But, personally, I have had my fill of the Anton-Bauer batteries/chargers hassle and high dollar investment required. Plus heavier tripods. Etc. And I will absolutely guarantee that I can get better looking, more accurate, more appealing footage with your FX1000. With a whole lot less hassle. Now I will grant that the wedding/photog flash thing is a real issue for me, but I will work with it instead of putting up with the other option. Ironically, I was a photographer at a wedding where the videographer was using a V1. I have a pretty hot flash. I saw the footage. And all of the flash artifacts were driving me crazy. But believe it or not, as far as I have heard, no one but me and the videographer seemed to notice it. As a matter of fact, I edited his highlight video for him and I used quite a bit of slo-mo which makes the flashes more obvious. The feedback I got was that the Bride and Groom and the Groom's family really loved it. I don't think the Bride's family has seen it yet. But no one has complained about the flash artifacts at all. Except me and the videographer. But we aren't paying the bills for the wedding, so our vote doesn't count.

Jeff Harper February 24th, 2009 05:19 PM

I agree in principle with you Greg. I hate the looks of the rolling shutter in a dark environment with flashes going off, and if someone asks my opinioin of this phenomenon, I'll tell them I think it looks dreadful.

But I am not going to ditch the camera because of it.

Martin Duffy February 24th, 2009 05:35 PM

16:9 v 4:3
 
In my opinion the "look" of 16:9 wins out over any 4:3 footage.

It just looks right in my view.

Anyone shooting in 4:3 is surely not seeing it through the consumers eyes.

How can an image that is 25% narrower be as good?

No going back for me.

Jeff Harper February 24th, 2009 08:24 PM

I agree Martin. I still rave about my old 2100, but when I see my new camera filling all of the real estate of my widescreen TV, I really like it.

Ken Ross February 24th, 2009 09:14 PM

Quote:

Originally Posted by Greg Laves (Post 1017798)
And all of the flash artifacts were driving me crazy. But believe it or not, as far as I have heard, no one but me and the videographer seemed to notice it. As a matter of fact, I edited his highlight video for him and I used quite a bit of slo-mo which makes the flashes more obvious. The feedback I got was that the Bride and Groom and the Groom's family really loved it. I don't think the Bride's family has seen it yet. But no one has complained about the flash artifacts at all. Except me and the videographer. But we aren't paying the bills for the wedding, so our vote doesn't count.


And that's been my point precisely. I have yet to hear of any customer that complained about this. They simply don't notice it and think it's nothing more than the typical blown exposure that occurs with a CCD-based camera.

Martin Duffy February 24th, 2009 09:19 PM

Trusty old TRV900
 
Quote:

Originally Posted by Jeff Harper (Post 1017901)
I agree Martin. I still rave about my old 2100, but when I see my new camera filling all of the real estate of my widescreen TV, I really like it.


Well Jeff On Sunday I was forced to use my old TRV900 for about 15 minutes (never lend your camera to a friend) and honestly the image looks the same as the FX1000 (although 4:3).

Later on in the day I filmed the award ceremony and mmmmm the back focus capability via the 20X lens is rather nice from the FX1000.

Ken Ross February 24th, 2009 09:29 PM

Wow Martin, I'm surprised!! I still have the TRV900 and always felt there was a 'pushed' look about its image. I found the VX2100 & 2000 to have a significantly better image than the 900 and the Z5 to have a better image still.

The color of these CMOS-based cameras seem to be invariably better than the older CCD-based Sonys. Add the additional detail, exposure latitude and sharpness, I find the image much superior to the 900 in 4:3 SD. I did many A/Bs with my 2100 & Z5 when I first got it to test the SD 4:3 image. I shot the same scenes, with the same framing and found the Z5 to be better in every shot. So I guess we see some of these things differently.

Dror Levi August 20th, 2009 05:42 PM

i just started editing 3 movies that i filmed with my new fx1000.
i found bed auto focus shots that i could not notice while i was filming since it was out door wedding and the sun was very harsh.
As well while filming the pre ceremony, i noticed that when ever i try to slightly zoom in the camera chose to focus on the background, even though the face takes 75 % of the total image(screen)
More then that, when ever i pan fast the camera stays blur until i change it to manual focus.
I was thinking to send it to repair but after reading this thread here it looks like a chronic problem with this camera.
Any solution for this problem?

Jeff Harper August 20th, 2009 10:04 PM

The auto focus does not work well with fast pans sometimes, especially in low light. You need to slow your pans down or switch to manual focus.

As far as the zooming in on subject, lighting conditions can make auto focus problematic. In these cases: zoom in all the way with manual focus, focus your subject, then zoom out to where you want to be when auto focus is a problem.

Use the camera some more before sending back to Sony. Auto focus is not reliable in all situations, you might try my suggestions first, and see what others suggest also.

Ken Ross August 21st, 2009 08:57 AM

Dror, unfortunately it can be an issue with the FX1000/Z5. I too have noticed how a face can fill up a huge portion of the frame and yet the camera will focus on something else.

Your best bet is to use manual focus for critical shots like that. I really doubt there's anything wrong with your camera.

Tom Hardwick August 21st, 2009 10:00 AM

Quote:

Originally Posted by Martin Duffy (Post 1013093)
I am over it and going either Canon or Panasonic.

If you do you'll lose Sony's most excellent 'focus assist'. Oh I know Panasonic have 'focus assist' written all over the HMC151, but it's certainly not the same thing, and nowhere near as useful as Sony's.

OK, my Z1 uses a contrast based auto-focus system, but the focus assist feature is just magic in stressed and rushed conditions. I can spin the focus ring the 'focus closer!' direction and BANG, it has focused on the closer face / flower / trinket in frame. Wonderful.

I'm surprised Panasonic can get away with calling their expanded focus / peaking by the same words.

tom.

Jeff Harper August 21st, 2009 10:05 AM

Hmmmm...I must give that a try Tom...

Tom Hardwick August 21st, 2009 10:12 AM

Give it a try? You don't use it on every single shoot? It was the one reason I implored folk not to buy the FX1, because it's inclusion on the Z1 was worth every extra penny, on every shoot.

The Z5 and FX1000 both have this feature though, don't they?


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