5DS Coming this Spring!?

[Kayaker72]

Agreed...the max ISO 6400 rumor probably stands out most other than the 53 MP. I am not sure what it means yet. I am hopeful that Canon is breaking with their past and the max ISO is actually usable. It actually doesn't make sense to me otherwise. The 7DII has a max ISO of 16000. The rumored 5Ds has the essentially the same pixel density. Why would ISO go backwards in ISO performance with the same pixel density? The closest answer I have seen to this is that they are enhancing the bayer filter to get better color rendition. But that costing 1.3 stops of light? Also, there has been talk/rumors of Canon finally putting their analog/digital converters on chip rather than off, which is supposed to reduce the noise.

So, hopefully on Friday, we'll at least get some glimpses of IQ in sample images. Then, hopefully we'll see in about a month when Bryan (and maybe Rick) get their hands on the camera.

I can see the advantages if this camera ends up being very good. My biggest issue is that the 5DIII is excellent for the vast majority of what I shoot. I am actually considering being "done" for awhile in the gear department (well, maybe one more lens ) and focusing any photography investment in courses, trips, etc.

[conropl]

...the max ISO 6400 rumor probably stands out most other than the 53 MP. I am not sure what it means yet. I am hopeful that Canon is breaking with their past and the max ISO is actually usable. It actually doesn't make sense to me otherwise. The 7DII has a max ISO of 16000. The rumored 5Ds has the essentially the same pixel density. Why would ISO go backwards in ISO performance with the same pixel density? The closest answer I have seen to this is that they are enhancing the bayer filter to get better color rendition. But that costing 1.3 stops of light? Also, there has been talk/rumors of Canon finally putting their analog/digital converters on chip rather than off, which is supposed to reduce the noise.

Just a little mussing... nothing technically researched, but:
Given the much higher pixel count over the 7DII, I would assume there is more heat generated (creating more noise) which may also limit the usable ISO. Yes, it has more surface area to lose heat, but I would assume the heat generation is at a greater rate that the cooling rate. My simplistic analogy: Stick 20 people in a 10'X10" room and it is going to get stuffy... put 50 people in a 16'X16' room and it is going to to get hot (and unbearable). So unless they add active cooling to the sensor, then I would assume the noise would go up.

Pat