Re: Information on the new JVC GC-PX100
 

I shot some more comparisons with the JVC GC-P100B. I went out to a baseball park and shot some high speed clips with the JVC, Panasonic DMC-FZ200, Casio EX-FH25 and the Nikon Coolpix P510.

I found a few good things to say about the JVC.
The HDMI outputs clean video in record mode. Besides being able to zoom during record mode, you can also adjust the exposure level; over a range of +2.0 to -2.0. It shoots 1080-60P (but no 24P or 30P modes).

The DMC-FZ200 and the Nikon have an HDMI port but don't output during record. The Casio only has an A/V port, which I didn't test. The Nikon does not have a cold shoe or hot shoe. There's a GPS antenna on top where a cold shoe would be. So, mounting a sound recorder, monitor, etc is not possible.

I have reviewed the footage and can see where it might be possible to squeeze a little more image quality out of the JVC, but I feel like the resolution at 240fps is what's hurting it the most (640x360, 1Mbps bit rate). My better shots were possibly due to having the camera locked down on a tripod and not relying on any image stabilizing (which seems a bit weak in this camera), fine tuning the exposure level (use the dang zebra stripes and not the LCD), and make sure the subject is well lit.

NOTE: for some reason I don't get yet, the JVC has to shoot at 240fps to get 4x speed, while the other cameras get 4x at 120fps. Another JVC quirk or something with a technical explanation?

I wonder if it's possible to get anything better out of that HDMI output. I don't have a recorder, but if someone else can give some input here, please do.

I would think the Nikon, with its 1280x720 resolution @ 120fps would clearly outshine the others but I'm not getting any wow factor yet. Can't rule out operator error. (that white-tailed eagle looks very good) I might upload some test footage from this last slow-mo round-up if I can get something put together in the next week or so. I'm busy doing a non-paying project but it came with a nagging deadline.

That new release from JVC, the GY-HM70 had my interest. It does high speed at a set 300fps (so for JVC cameras I guess that's about 5x). Now, unless I go back up to the JVC Kenwood showroom in Tokyo and get a good play with one and can use my own memory card. I think I'll pass. The search for affordable (under $2,000) 4x slow-mo continues....


Mark Watson

Re: Information on the new JVC GC-PX100
 

That is a very strange decision by JVC - to use a nikon F mount that is..

You will not be able to use many other lenses on this camera as Nikon has one of the longest flange distances. Meaning any other adapter is going to place the lens to far away to achieve infinity focus. eg canon EF uses 44mm, Nikon F 46.5mm - you physically can't get the canon lens close enough to the sensor to achieve infinity focus.Moreover they made it a dumb mount so what's the advantage over something like an e-mount where there are a ton of adapters out there? Maybe I'm missing something through the translation - maybe it's a removable mount?

Re: Information on the new JVC GC-PX100
 

Mark - have you thought about renting the FS700 when you need slow-mo? It's $429.95 for 3 days from Borrowlenses.

Cheers,

Bill
Hybrid Camera Revolution

Re: Information on the new JVC GC-PX100
 

Bill,

No, I have never considered renting camera gear. I am on international travel several months out of the year and just didn't think it feasible. I sent BorrowLenses an e-mail to see what they say. If they will ship it to me in one country and let me keep it for a few weeks, then ship back from a different country, that would be great. I offered to give a deposit for purchase value, so I hope they can accomodate me. Three weeks rental of the camera plus the E-mount 18-200mm lens is about $1,500. Now I have to look at the manual and see what I can do in 120fps mode. I know there's a time limit (8 seconds?) on the high-speed recordings but not sure about whether the camera automatically adjusts to maintain proper exposure, etc.

Also, there was no mention of a shoulder strap. I kind of need that shoulder strap....

Thanks for the suggestion, Bill.

Mark

Re: Information on the new JVC GC-PX100
 

Thanks for the detailed info! I was looking at this camera from the opposite view. a 35mbs knock about to import to 24p timeline in FCPX. The real knobs and switches with ND filter to bring to 1/48th or 1/50th in manual or at least shutter priority mode. How easy is it? Results? 1080 or720p makes little difference to me. I wanted this as a good fun B camera to my JVC HD110 with my 17x lens (breaths new life into my old JVC by the way) Dropped edge enhancment to almost nothing and looks sharper at it's fuzziest as the old 16x was at it's sharpest. This PX100 or top of the consumer line Canon might be a fun knock about B camera without going to a Blackmagic Pocet camera with lens for twice as much.

So questions.

1. ND filter to get 1/48th or 1/50th shutter? (manaul/shutter priority etc) possible with what ND?
2. 35mbs at 1080/720 60fps to drop into a 24p (23.98) FCPX timeline. best method?
3. For a 24p person how is this say vs a top end Canon consumer with 24p Native knee jerk reaction?

thanks

a

Re: Information on the new JVC GC-PX100
 

How about a 4K version?


JVC 4K Camera for “Under $2,000″ on Display at CES 2014

Re: Information on the new JVC GC-PX100
 

Unfortunately very few of the reviews for this camera look at anything but the high speed modes. I'd be much more interested in how it compares in anti-aliasing, moire and all the standard things that go wrong when downconverting fom high megapixel sensors

Re: Information on the new JVC GC-PX100
 

I didn't comment on other aspects of the camera's image because they were fine. What killed the camera for me was its push-dark-gray-to-black response.

The PM and I talked about a 4K version -- then suddenly JVC went dark to me. I suspect he wasn't supposed to say anything about 4K in summer 2013. :)

I'm now far more interested in the Sony for multiple reasons. Plan to pre-order one tonight. I came to DVINFO to see if there was a forum for it yet.

However, because it's also a hi-res camera, its OLPF may be set to high for video which is why demo footage aliases so badly. Thus, the JVC could back on my list -- assuming no camera hi-res function.

Re: Information on the new JVC GC-PX100
 

sorry Steve - without going back through the whole thread what Sony are you referring to?

Re: Information on the new JVC GC-PX100
 

I've ordered the Blackmagic Hyperdeck Shuttle to do some experimenting with this camera. I got the GC-PX100 for the high-speed video but if you had something in particular in mind you would want me to test for you, let me know and I'll try to accomodate any testing you'd like to see. I plan to shoot all modes and frame rates and see if I get anything better out of the external recorder, which should arrive in about a week.

Mark

Re: Information on the new JVC GC-PX100
 

I got this camera some days ago...
Is a nice backup camera for me. I will use it in live events. Works fine with lowlight, outputs both in 1980 and 720, the optical stabiliser is good, etc...I didn't foo deep tests on image quality.. It's quite good for the price and I'm not expecting broadcast results for it... What I expect from this range of cameras is that they are easy to use even in manual mode...

But.. here is WHAT I DON'T LIKE

- I didn't buy it for slow-motion, but I was quite upset to discover that advertised resolution of 640x360 at (max) x250fps is probably a 320x180 "pumped up" at 640x360. 640x360 was already a small res compared to our days but still I was thinking to "pump it up" at PAL/NTSC res with no problems.. but is probably already "pumped up".. so can't do much from here

- The MANUAL FOCUS ring was one of the reasons why I bought it. The problem is that there is a MF button to press every time even if you are in manual mode already. That's not a nice operation to do every time specially if you are use to work in manual mode all the time. I contacted the italian assistance who then contacted the center in Japan and they confirmed that that is how it works, accepted the suggestion, and said they will think at addressing the issue in the future (don't understand if in new firmware or a new model though!). MF button is very useful in AUTO MODE, but in MANUAL MODE you should be not forced to use it!

- The battery. You can't use bigger batteries even if pin-compatibile. This because the battery is located inside the camera, totally inside, so it will never be bigger than the one they give you. And this is a pity if you want to use it as a backup camera in outside events, where no electricity plug is available. Obviously there are other solutions (like external batteries etc..) but you loose the advantages of a small good camera. Also is not so immediate to replace the battery. You need to turn the LCD screen down and then open an extra slot.. not really a fast procedure.. When you finish probably you'll find out you moved the tripod and some settings.

- They sell it with no external battery charger. I knew this before buying it but is not very understandable on every online shop so... just put in budget an extra 20€ for an external charger. I don't think including it in the package would have sent JVC broke !

- As a nice and very all working FOCUS ASSIST but to access it you need to go through the menu on touchscreen LCD... An external button for quick access would have been really appreciated, as well for one for WHITE BALANCE

- Some features work only in MOV mode and some others only in AVCHD mode...This confused me a bit at the beginning and still leaves me to think... why I have to choose between X.V.Color and x250fps ? That's not fair



As you can see I focus on usability. Quality of recorded video (and audio!) is very good for the price and I'm not going to investigate too much on that size. Is a good camera.. just wish they had put just little more attention on usability.