2015 & 5DIV? Experts: what can be expected of a probable 5DIV in high iso IQ?

[jrista]

Thank you jrista for this detailled explanation! Will we ever come as close to such a great high ISO IQ as Sony demonstrates it, at the same or a similar price tag by Canon? I kinda doubt that, I guess they will ask another premium for that same thing... Sometimes I am pondering about purchasing a Sony A7s for the lowlight pics and keep with the 5D3 for the rest...

I don't know what to expect from Canon. A lot of people seem to be intrigued by small improvements here and there. The 7D II brings some big improvements to the AF system, which is wonderful...and I hope the iTR technology filters down to the rest of Canon's pro line (including the 6D). Beyond AF systems, though...Canon really likes to trickle out improvements, as slowly as possible, and at as high a cost as possible.


I certainly hope that come 2015, they will be releasing something fundamentally impressive with a layered sensor and low read noise, for a reasonable cost. What I expect is that Canon will release something that impresses a lot of people with a layered sensor, and high read noise. So long as Canon keeps using their off-die ADC units, I don't think we will see any improvement on the read noise front, and I think if Canon does that, it will diminish the benefits of having a layered sensor (i.e. they will have much of the same problems that Foveon has...which again boils down to high noise in the red channel and high read noise.)

 

[K-amps]

Thank you jrista for this detailled explanation! Will we ever come as close to such a great high ISO IQ as Sony demonstrates it, at the same or a similar price tag by Canon? I kinda doubt that, I guess they will ask another premium for that same thing... Sometimes I am pondering about purchasing a Sony A7s for the lowlight pics and keep with the 5D3 for the rest...

I don't know what to expect from Canon. A lot of people seem to be intrigued by small improvements here and there. The 7D II brings some big improvements to the AF system, which is wonderful...and I hope the iTR technology filters down to the rest of Canon's pro line (including the 6D). Beyond AF systems, though...Canon really likes to trickle out improvements, as slowly as possible, and at as high a cost as possible.


I certainly hope that come 2015, they will be releasing something fundamentally impressive with a layered sensor and low read noise, for a reasonable cost. What I expect is that Canon will release something that impresses a lot of people with a layered sensor, and high read noise. So long as Canon keeps using their off-die ADC units, I don't think we will see any improvement on the read noise front, and I think if Canon does that, it will diminish the benefits of having a layered sensor (i.e. they will have much of the same problems that Foveon has...which again boils down to high noise in the red channel and high read noise.)

I hope you are not holding your breath on that.

I would venture to guess, you might have taken a look at metabones and an A7 to complement your Canon lenses ....truth be told; I have as well, but there are painful compromises to be made.

Canon uses a Sony sensor in the GX7 but insists on using old tech in the Full frame sensors for now... If the last 2-3 higher end Canon body releases are any indicators, there will be definite improvements in high ISO performance, but DR is not something the Canon Geriatric board is considering as a priority (at least in their public statements).

I quote from the DPReview interview of Mr Maeda after the release of the 7Dii: Where he skirts the issue of DR in Canon sensors whether because he considers it un-important, or some other reason... I get the impression, DR is not something Canon top brass is looking to improve upon as a priority, they feel there are other components to a good image it seems...

'DPR: One thing we know from our own testing is that Canon DSLR sensors can’t quite compete with some modern sensors from Sony in terms of dynamic range. How important to you is developing sensor technology?

Mr Maeda: We are very focused on getting the best image quality. I’m not sure what measurements you’re looking at but when it comes to dynamic range for example we consider image quality as a whole, from low to high ISO sensitivities and on balance we consider our sensors to be the best.

My ideal camera is one that can take a picture in any environment from complete darkness to the brightest sunshine.'


Seems he is still concerned about hi-ISO performance ala 5dii, 1Dx, 5diii, 6d etc than other parameters like Base ISO noise, or DR in general. With those professed priorities (like overall IQ in general): I am not holding my breath on them delivering anything ground breaking in the DR area... While I enjoy using my 5diii, I would not mind getting a 5d IV or 1dxs when it ships, if it competes well with Sony sensors... I love my Canon lenses. I would love them even more if Canon stuck the 810 sensor in a 5D type body.