Canon Testing a 75+ Megapixel EOS-1 Body? [CR1]

[Don Haines]

Very interesting. I just hope that one of the big MP cameras we keep hearing about comes with 16-bit DR. I can care less about any camera with more than 40MP and doesn't have 16-bit DR...

If you can care less, then why don't you ?

As far as 16-bits....now that is something I could not care less about. Because 16 bits will not give you more DR. Just bigger files with the extra bits quantizing noise.

14 bits will do just fine.

actually......
A pixel produces an analog signal that is relative to the amount of light it has been exposed to. That analog signal is sampled by a D/A converter and becomes a digital number. The number of bits of resolution of the D/A converter is the upper limit of the DR of the camera. If you have a 12 bit D/A, the best dynamic range possible under ideal conditions is 12 stops. If you want 16 stops, you need 16 bit D/A and that means 16 bit RAW files.

and for those wondering how fast and accurate you can go.... I have an 80Ghz spectrum analyzer at work that samples at 24 bits.... that's like sampling every pixel on a 75Mpixel sensor 1000 times per second at 24 stops of DR! Cameras are snails in comparison...

 

[Daniel Flather]

upgrading to a Nikon

Upgrade how?

 

[Snook]

I'm not entirely sure of the technical aspects, but wouldn't this many pixels result in severely reduced high ISO capabilities? Would Canon have to innovate somehow to keep the ISO capabilities on par with other, lower megapixel DSLRs?

 

[infared]

upgrading to a Nikon

Upgrade how?

....now...now.....(smirk)

 

[LetTheRightLensIn]

Very interesting. I just hope that one of the big MP cameras we keep hearing about comes with 16-bit DR. I can care less about any camera with more than 40MP and doesn't have 16-bit DR...

If you can care less, then why don't you ?

As far as 16-bits....now that is something I could not care less about. Because 16 bits will not give you more DR. Just bigger files with the extra bits quantizing noise.

14 bits will do just fine.

He said 16bit DR not 16bits so I'm with him, bring on the DR.

 

[infared]

With dual Digic 6+, it might even hit 3 fps...

Or...it could just catch on fire....

 

[Zv]

Hmmm seems kinda strange Canon would jump from 22MP to 75MP, but if they could pull it off it would be interesting to see how. Exciting times right now with the 7D2 on the horizon and this big megapixel body next year. Not that I'll be buying any of it just something to drool over!

 

[birtembuk]

Very, very interesting. Let's see what all these mega pickles will provide - with binning or whatever sorcery - in terms of DR, noise etc. High fps is not the talk here. There are other cameras to take care of that.

 

[Tabor Warren Photography]

I knew I should have purchased a 1TB CF card...

 

[xps]

Guess: 12000€ body only

And some new lenses made out of high-resolution glass to meet the Cams resolution.
24-70 2.8 III, 70-200 2.8 IV (doule the price...)

 

[serendipidy]

With dual Digic 6+, it might even hit 3 fps...

Or...it could just catch on fire....

You mean like Kai's demo on DigitalRev TV ;D

 

[xps]

2015-16 maybe. Not 2014 unless its some "leak" to keep people from upgrading to a Nikon

Possible, indeed! Maybe there is an special *** and WIFI sensor inside who sends all the pics compressed to the US NSA.... 8)

 

[tnargs]

Every time a camera co. raises the game on pixel count, we get the same boring whining about PC speed and storage. So old, so lame....

 

[tnargs]

if the 5D3 were capable of 75 megapixels I would soon start choosing my resolution based on my anticipated use for the photo.

Thus, having 75 megapixels available would provide another variable that I could control, just as I control WB, f-stop and shutter speed.

Thoughts?

Agree. A dedicated on-body control for MP would be neat.

 

[LetTheRightLensIn]

2015-16 maybe. Not 2014 unless its some "leak" to keep people from upgrading to a Nikon

Possible, indeed! Maybe there is an special *** and WIFI sensor inside who sends all the pics compressed to the US NSA.... 8)

Oh heck they've already had that since the 20D ;D.

 

[kirillica]

sometimes even on my latest very good i7 + 16gb ddr3 + ssd I feel process not so fast with 20mp of 5dm2. the only way to upgrade is ram (up to 64gb), but will it be enough to handle 75mp on a good level of speed? let's see...

at the same time, I think this is a double-pixel technology (like in 70d), so it makes 75mp 38 real mp on output and that's fine to me. around 40mp is something you can handle pretty fast on a good pc.

 

[ishdakuteb]

ummm... the way i see it... i should buy some of western digital, seagate, etc stocks as if this rumor comes true LOL

 

[Pi]

Ugh, with a RAW file size of what? 120MB?

So? Storage is cheap, and my computers are fast.

Yeah, but it will take 10 hours to backup 10 photos to another HD.
And maybe 10 months to back up a a trip.

Shoot mRAW or sRAW, problem solved.

 

[kaihp]

With dual Digic 6+, it might even hit 3 fps...

That could depend a lot on the memory (card) it's writing to. High-end CF are around 100MB/s, and with a 75Mpix sensor, I would guess a 85-100MB RAW file*. Since Compact Flash is based off PATA, it's limited to 167MB/sec. The CFast card standard (using SATA) could theoretically support up to 600MB/s on the interface, but a quick google only turned up cards in the 100MB/s range.


*) 75Mpx is ~3.4x the 5D3 sensors 22.1Mpix, and with 25-30MB RAW files for the 5D3 I get to 85-100MB (or more for high ISO).

 

[kaihp]

If you can care less, then why don't you ?

As far as 16-bits....now that is something I could not care less about. Because 16 bits will not give you more DR. Just bigger files with the extra bits quantizing noise.

14 bits will do just fine.

actually......
A pixel produces an analog signal that is relative to the amount of light it has been exposed to. That analog signal is sampled by a D/A converter and becomes a digital number. The number of bits of resolution of the D/A converter is the upper limit of the DR of the camera. If you have a 12 bit D/A, the best dynamic range possible under ideal conditions is 12 stops. If you want 16 stops, you need 16 bit D/A and that means 16 bit RAW files.

and for those wondering how fast and accurate you can go.... I have an 80Ghz spectrum analyzer at work that samples at 24 bits.... that's like sampling every pixel on a 75Mpixel sensor 1000 times per second at 24 stops of DR! Cameras are snails in comparison...

Thanks Don. And you're exactly right.

I don't respond to trolling-idiots like the person who responded to me. He should go back to shooting with his Rebel...

I think there is a mixing of (minimum) resolution and Dynamic Range. The resolution tells you how accurately you can tell each level apart, whereas the dynamic range is to full range (I believe this is what is also called Full Well Capacity) available.

For Don's spectrum analyzer, it has a certain maximum input voltage (Vpp) that it can accept (this is it's DR). Any voltage outside that may either damage the equipment (very expensive!) or just get plain clipped.