CCD vs CMOS: better color and more film like look (PROOF)

Started Jul 15, 2014 | Discussions thread
Eric Fossum
Eric Fossum Senior Member • Posts: 1,431
Re: Circular reasoning

fPrime wrote:

Sara Valentine wrote:

fPrime wrote:

Sara Valentine wrote:

robert1955 wrote:

fPrime wrote:

Eric Fossum wrote:

"There is a dichotomy between DR at base ISO and High ISO due to the differences in conversion gain required between a large pixel, high full-well-capacity (FWC) sensor like the D3x/1DX/Df vs higher density sensors like the Sony 24MP/36MP Exmors. In a large pixel sensor, the FWC is much higher, resulting in a higher amount of referred read noise, which translates to lower base ISO DR, but this disadvantage turns into an advantage at Higher ISOs due to both the higher conversion gain of the sensor and also the lower total read noise aggregate from fewer sensels that must be read. The opposite appears to be the case in smaller pixel sensors, as they have shallower FWC but also benefit from Sony's Exmor Column-Parallel A/D conversion technology."


I remember contributing a number of comments to the referenced thread, as did many of us. I hope you went back and read them all. Sony's marketing BS still smells the same, years later. (I know you just copied and pasted, but that could be a considered a secondary sin.)

Ah, but the above wasn’t Sony’s marketing spin. That was entirely Horshack’s interpretation of what he observed in actual testing.

Actually his first words in that post were: The A7s will be released in about two weeks

The thread lasted two days, I don't think actual testing was involved

This isn’t the first time someone else’s writing was selectively cut and pasted in order to contort them to fPrime’s agenda.

Nor is it the first time Sara Valentine misread the context of a discussion before opening her mouth only to embarrass herself in the process.

To wit... here the relevant comment to this discussion on small pixels and high DR by Horshack is bolded and relate solely to his extensive prior testing of the D8xx series employing Sony’s Exmor sensors.

What was clipped (but still referenced by me via the provided link) were his introductory comments about the potential of the Sony A7s. Why? Because these conjectures are irrelevant to this discussion, a little detail that somehow escaped both you and robert1955.

Again... the question posed in this thread is do small pixels move inverse to larger dynamic range and not if the Sony A7s or Sony’s marketing for it measure up. Nothing here was contorted with perhaps the exception of your poor interpretation of the facts, lol.

It will be day of mild celebration the day you bring facts to a discussion.

Pop the champagne. I bring facts all the time, just ones that you and your cohorts find to be "inconvenient" to dispel.

I've posted more data/evidence on this specific forum within the last month than you've posted on all combined forums since you've been a member on DPR. Don't make me laugh!


I have to say this is one of the dumbest forum discussions I have witnessed this year. Just look up a historical CFA spectral response curve from either a paper on the IISS website or perhaps SPIE or IEEE, and compare it to a modern curve. Is the transmission in the passband higher or lower, and is the width of the passband wider or narrower, and is out of band reject stronger or weaker? And no, I am not going to do it for you, and yes, it might take 10 or 20 minutes to get what you need.

I must be a little dumb because I cannot figure what your real question is except you have the basic feeling that color quality has changed over the years. Probably true, but scientifically, color fidelity has generally improved, even if visually it looks different from film or even image sensors of years past.

On the other hand, if your goal is to troll and insult, then nevermind. I cannot be sure.

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