Originally posted by clackers AFAIK, he's a fashion photographer chucked out of the DPR forum in the past who did a diatribic blogpost some have bookmarked as a kind of holy relic.
The time I once spent reading it is time I won't get back, unfortunately. My training is in Physics so I had to read genuine Optics papers by people who actually knew what they were talking about.
Good "appeal to authority" - not!
There's 'appeal to authority' and then there's citing sources or aggregation of sources. One great tactic folks like you use is to call citations and references an 'appeal to authority' once you realize the citation makes you lose the argument.
You can do literally dozens of things to clear up your misconceptions - check Falk's site, or go root around on dpreview until you encounter Eric Fossum for example who provided information to JJ for some of the read noise information in his article and is one of the clear voices on Equivalence - or tries to be, among all the noise out there. Emil Martinec, Bob Newman, Bill Claff, Bob Sheehey, etc -- these are not 'appeals to authority', they are researchers and engineers who have laid out the facts on their own research and calculations and data for you nicely. I once got into a 'discussion' with Bob Newman when I didn't think he understood the concept of "ISO-less" correctly - he proceeded to carefully take apart my argument piece by piece - very patiently, i might add - and I learned much about the subject before I even realized who he was. You could find some direction there.
Maybe we should check in with you to see if this isn't just a stalling/trolling tactic on your part or if you really have some specific objections - going back to my first post, what statement specifically do you have issue with?
Oh, and BTW - "I have training in physics"
is also a certain type of appeal - one that falls flat on it's face when you deny basic things like Equivalence and misunderstand the meaning of the screen tab vs. print tab on DxO. We had a 'physics major' on here last year who proceeded to leave his idiotic droppings in multiple threads, then go on dpreview and make such a horrible fool of himself I actually felt bad for him. (he's been banned from there and I think from here now, because although he was a confirmed physics undergrad major - he was a complete equivalence-denying idiot, and a very rude one at that.)
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