EOS 7D Mark II Talk [CR1]
- Thread starter Canon Rumors
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Etienne said:
true - and lets not forget - when you come home, fall down on your couch and start getting brainwashed by TV - lots of this stuff is shot with these cameras! as a matter of fact, most of our movies (we shoot docs for german TV, quotas about 12-15% aka 10 million viewers) is a combination of pmw200 footage (4;2;2 50 mbit to meet broadcast requirements) and low DoF 7D footage - its a perfect combination!
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Improved high ISO video performance would be very welcome. 7d footage at 1600 and above just looks horrible. I understand how the smaller pixel size on APS-C sensors is a limitation, but it would be SOO nice to have a Canon crop at least equal to just the Mark II as far video ISO performance.
Would it be possible to create a ~24mp APS-C sensor (so lets say pixel size of: 4µm) but use larger pixels (something closer to full frame size: 6.4µm.....or even bigger like 8µm) for the pixels designated for video, (resulting in AWESOME low-light performance)? Or does having different pixel sizes on the same sensor simply not work for whatever reason?
And I can think of a ton of photo applications for such technology as well. I'm one of those weirdos who would love a 8-10MP camera with ridiculous pixel size and thus great high ISO performance. Plus getting 14fps+ should be a breeze with that image size.
Would it be possible to create a ~24mp APS-C sensor (so lets say pixel size of: 4µm) but use larger pixels (something closer to full frame size: 6.4µm.....or even bigger like 8µm) for the pixels designated for video, (resulting in AWESOME low-light performance)? Or does having different pixel sizes on the same sensor simply not work for whatever reason?
And I can think of a ton of photo applications for such technology as well. I'm one of those weirdos who would love a 8-10MP camera with ridiculous pixel size and thus great high ISO performance. Plus getting 14fps+ should be a breeze with that image size.
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Canon has backed itself in a corner. Canon does not have the sensor technology now to offer an update IMO.
Time to move on. I am selling the 7D. I put the brakes on buying new Canon equipment when they failed to deliver a good crop camera for me. Now 1 year since I stopped buying Canon gear.
Fortunately I have some good lenses for Pentax. With the new K-3. If AF is fairly accurate I am moving on.
If and when a new enthusiast Canon crop camera materializes. Then I will think about it.
Time to move on. I am selling the 7D. I put the brakes on buying new Canon equipment when they failed to deliver a good crop camera for me. Now 1 year since I stopped buying Canon gear.
Fortunately I have some good lenses for Pentax. With the new K-3. If AF is fairly accurate I am moving on.
If and when a new enthusiast Canon crop camera materializes. Then I will think about it.
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LetTheRightLensIn said:
Because I don't want to expand to video. I actually have shot video with the 7D, for pay, for a small independent video I will never name (it was that bad... but money is money... ). I don't like shooting video. I like stills. I want a camera completely optomized for stills, and I don't like paying money for video.
Video is a totally different world than stills; I can only do so much well, and working on video is somethign I would rather trim than have to deal with.
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Lee Jay said:
Photosensors are in a 2x2 grid, but you're not binning a quad of photosensors; just the reds together, greens together (x2), and blues together... So yes, it is easy.
In the attached image you bin the following:
r1+r1+r1+r1+r1+r1+r1+r1+r1=r1'
g₁1+g₁1+g₁1+g₁1+g₁1+g₁1+g₁1+g₁1+g₁1=g₁1'
g₂1+g₂1+g₂1+g₂1+g₂1+g₂1+g₂1+g₂1+g₂1=g₂1'
b1+b1+b1+b1+b1+b1+b1+b1=b1'
And you bin down right back into a bayer pattern which you can than save as-is, or demosaic, or whatever.
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Add me to the list of "No video functions". I have the 5D Mark II and haven't touched the video portion at all. If I want to do video, I'll hire someone or get a dedicated video cam....
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You'd need an AA-filter with adjustable strength. Possible, but has Canon the proper patents?CarlMillerPhoto said:
And then pattern noise and assorted nastiness with the on sensor wiring come up.
Better bet: do it like the 70D for AF, read multiple subsensels together. Instead of just the AF-parts combine 18 elements from 9 AF capable sensels a 22+ MP sensor would have for fHD video. Less noise-both from the area as well as statistical cancellation of readout noise, the latter being Canons weak spot atm-, and with the right interweaving reduced moire.
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I don’t know why the video function on our EOS’ is such a major issue with everyone, I’ve personally never used it, in fact I’d need to get the user manual out to begin with, but I know it’s there and that makes me happy. It’s like that old situation, you’re in a pub in Glasgow on a Saturday night and you hit the jackpot with the honey of your dreams, I’d rather know I had that condom!!!!! 
But back on topic, I ‘m looking forward to the 7D MKII release as it’ll force the price of the 7D MKI and 70D down some more, then I’ll be able to buy one of the later and an “L” series lens!!
But back on topic, I ‘m looking forward to the 7D MKII release as it’ll force the price of the 7D MKI and 70D down some more, then I’ll be able to buy one of the later and an “L” series lens!!
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Lee Jay said:
If it can be achieved I think this could be the best move, the new 7D would seem like the perfect camera to introduce it on as it looks like it might struggle to differentiate itself otherwise.
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I know this may be irrelevant to most, however; the 70D (body only) is currently 804 Euro’s in Dubai, or 1,105 Euro’s with the 18-135 IS STM, so if your passing through and plan on purchasing one, there’s some good deals here.xps said:
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The actual prototypes that are out for testing don´t have the 70D sensor, a CF card slot, a fixed display, no stupid RATE-button, AEB like the 5D Mark III, a better AF system as the 70D, AF works down to -3 EV and are NOT video oriented. It´s a camera for semipro photographers, but you can make good videos with it.
The Mark II is a perfect camera for all photographers who want an APS-C body for all possible shots. Sports, Action and Wildlife shots included.
The Mark II is a perfect camera for all photographers who want an APS-C body for all possible shots. Sports, Action and Wildlife shots included.
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bvukich said:
That method throws away half the light collected.
The 2x2 approach bins the 2 greens, 1 red and 1 blue in the block into 1 RGB pixel. Simple and no light lost.
Rather than do the above, why not demosaic and interpolate with a simple interpolation method like bilinear? That way, you'd at least keep all the light.
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?????????Lee Jay said:
Where is there light being thrown away?
A normal pixel is 1 red, 1 blue, and 2 greens divided by 2... Let's say you have an 8 bit a/d converter.... that gives you a 24 bit pixel and you have 8 stops of dynamic range..
Bin 9 pixels together... (for ease of math I will just use 8 of the 9 pixels) with an 8 bit a/d converter you get an 11 bit number, or a 33 bit pixel, or 11 stops of dynamic range.... no light is lost, it is all summed up in the final number... you are trading resolution for dynamic range.
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Don Haines said:
you are trading resolution for dynamic range.
don't understand any tech but a trade of res for dr would be the deal for many folks, I guess. anyway, I am all for high ISOs. But I can imagine, this might have its impact on high ISOs as well. Or is it like this: either better high ISOs or better DR? I don't know nothing about tech acutally, so thank you for any help.
I like every improvement on every body level as it will pay off in the next 5Ds as well 8)
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pedro said:
Thing is, the 3x3 binning example would mean an 89% resolution loss (8/9) and much smaller gains in DR. A/D is not 8 but 14 or 16 bit these days. A 24 MP sensor would only yield 2.5 MP resolution. Good enough for HD video, but not for stills.
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