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  • Hey all, just changed over the backend after 15 years I figured time to give it a bit of an update, its probably gonna be a bit weird for most of you and i am sure there is a few bugs to work out but it should kinda work the same as before... hopefully :)

Panasonic throws a m4/3 chip in a video camera

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Graeme Nattress said:
Sure, but this camera is not aimed at them, it's specifically aimed at digital cinema so they say. I'm sure Panasonic have cameras specifically aimed at the sports market too.

Graeme
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Yea, but I would imagine the option of being able to shoot interlaced is nice, if you've got to work with that.

I mean, it's an outdated option for most people, but a LOT of people still require interlaced.
 
I'm sorry, but saying on a slide "built-in ND filtering reduces video aliasing" is just bollocks. ND doesn't reduce aliasing, optical low pass filtering does that, along with proper image processing and reading the full sensor, not skipping any pixels. This is not a "counter-attack" but a more like a homeopathic attack on the flu.

Graeme
 
Yes, and here is from Jan Crittenden Livingston (Panasonic Broadcast & TV Systems Product Manager):

http://www.dvxuser.com/V6/showpost.php?p=1957954&postcount=10

«I think that slide is confusing. The ND Filter is so that I can reduce the amount of light coming into the camera and not have to stop down, thus losing my Depth of Field. I don't think that Joe read the slide carefully, I know I didn't create that slide as the ND doesn't improve the the aliasing issue. An optical Low Pass filter does.

Best,

Jan»

That slide tag comes from here:

http://www2.panasonic.com/webapp/wc...0101919040&surfModel=Content04082010101919040

«The AF100 maximizes the potential of its high-resolution imager with built-in ND filtering and dramatically reduced video aliasing.»

The original press release wants to tell or point out that's the acquisition device which does it, not specifically the ND filter. A bad "copywriter" student entry, I'd say ;-)
 
Jan gets that right!

Graeme
 
uz29 said:
http://twitter.com/mikkowilson
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Barry Green on the Panasonic AG-AF100: «GAME OVER. Man I want one!»

I can't even figure how many units Barry will help to sell out. I knew Jim should have hired him LOL ;-)

It is funny to see Jarred and Barry in different sides of the game. Quite healthy anyway. Whether we like whether not, Panasonic is playing hard.
 
Sorry to jump the thread... but does it line-skip?

Jim
 
«GAME OVER. Man I want one!»

ouch :huh:
 
Jannard said:
Sorry to jump the thread... but does it line-skip?

Jim
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Jan stated that it is the same sensor as the gh1... the press info says it's a 12MP sensor, so, they'll have to do something to get 1080 and 720 output...

Supposed to be dedicated video, and not a stills camera that shoots video, but still using a low-speed stills sensor (as far as I can tell), so the jury is still out on that in my opinion.

step in the right direction... nice to see it in a video form factor with proper controls, i/o, etc. but, my focus is elsewhere... I don't care so much about sensor size as I do, 120FPS, RAW, 3K, and a gazillion other features on a certain camera that looks to be very promising.... to each his own... oh... and my entire setup NOT going obsolete every 6 months as fast as the market is moving... I can handle replacing 500 dollar modules as technology progresses. or moving up the brain train as my budget allows, but keeping my x thousand dollars worth of supporting modules...
 
Well they've said it's going to be a dedicated video rig, and the box they have it attached to is MUCH larger than the GH1, body, so it seems like it's definitely going to be working with more hardware out of the gate.

I am thinking that they will have enough hardware internally to do internal downscaling to 1080P from the 12MP sensor. I doubt they'd use a sensor that big if they were just going to crop.

Didn't I remember someone saying that the limitations on the GH1's video mode has to do with the internals and not with the sensor? I vaguely remember reading something about how the sensor was plenty fast, but that the GH1 simply didn't have a powerful enough hardware to catch all of the data.
 
Wesley Scoggins said:
Well they've said it's going to be a dedicated video rig, and the box they have it attached to is MUCH larger than the GH1, body, so it seems like it's definitely going to be working with more hardware out of the gate.

I am thinking that they will have enough hardware internally to do internal downscaling to 1080P from the 12MP sensor. I doubt they'd use a sensor that big if they were just going to crop.

Didn't I remember someone saying that the limitations on the GH1's video mode has to do with the internals and not with the sensor? I vaguely remember reading something about how the sensor was plenty fast, but that the GH1 simply didn't have a powerful enough hardware to catch all of the data.
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The GH1 sensor is NOT fast enough for motion without line-skipping... so it needs to be a new sensor. Scaling isn't the issue, it is sensor clock speed. Same problem for Canon and Nikon.

This isn't something to guess at. It is a valid question potential customers should be asking.

Jim
 
Wesley Scoggins said:
Well they've said it's going to be a dedicated video rig, and the box they have it attached to is MUCH larger than the GH1, body, so it seems like it's definitely going to be working with more hardware out of the gate.

I am thinking that they will have enough hardware internally to do internal downscaling to 1080P from the 12MP sensor. I doubt they'd use a sensor that big if they were just going to crop.

Didn't I remember someone saying that the limitations on the GH1's video mode has to do with the internals and not with the sensor? I vaguely remember reading something about how the sensor was plenty fast, but that the GH1 simply didn't have a powerful enough hardware to catch all of the data.
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well, it should be a good indicator of just how far they can "stretch" the image of a stills sensor for 1080 video... the only examples we have right now are dslr's, so it will be interesting to see what the different hardware/processing/etc can do for that... or not.

one main reason they would use an existing stills sensor, is b/c it saves them on development dollars. If they just tweak an existing sensor, I would imagine there is a lot of money saved vs. developing an entirely new sensor for the camera.... allows them to keep the price point down'ish...

None of the dslr's are "cropping"... they're doing some other line skipping or pixel binning or whatever, in order to have 30fps at 1080 b/c the sensors themselves are not (as far as I know) capable of 30fps... heck even 20... at their native resolutions... So, they end up using a fraction of the information from the sensor, while maintaining its framesize and being able to crank out higher framerates at reduced resolutions.

Sounds as though this cam is doing the same thing, but perhaps with some more robust hardware and processing and such. how much benefit in terms of final image quality that gains remains to be seen. The only comparison we have right now are in the dslr's... we all know their limitations.
 
I am going to come in and say this is great news - but a 4/3" sensor off a GH1 is worrying signs. I am sure they will "tweak" it and stuff, but I hope it's a sensor from ground up. Also, a 4/3" needs to push out more than 1080p. Make the 4/3" a native 3K, and we are there!

It is good to see the big guys are waking up and advancing their line-ups. We have had 1/3" cameras for far too long in this segment.

Edit - If it is indeed a GH1 sensor and line-skipping, I am not interested. Unless they have invented a revolutionary anti-aliasing method that does not soften the image ala OLPFs.
 
This has nothing to do with processing. It is all about the sensor. If the sensor is the same as the still camera, they HAVE to line-skip to get 24fps. It is an easy question to ask.

Jim
 
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