bseitz234 said:
jrista said:
LetTheRightLensIn said:
jrista said:
Regarding the sensor...very disappointing. Sounds like a re-purposed 70D sensor with a DPAF improvement. I was REALLY, REALLY hoping Canon would really show something impressive on the sensor front with the 7D II. If the camera really does hit the streets with a 20mp sensor, I fully expect it to have the same DR limitations as all of Canon's previous sensors. Extremely disappointing. :'( Guess we'll have to wait for the 5D IV to see if Canon can actually step up their sensor IQ game or not...which is just...so far down the road...Bleh.
Also worried about the "fine detail"...I really don't want them to start removing AA filters. That is just a dumb trend that photographers like simply because they do not understand the value of an AA filter, or the ease by which AA softening can be sharpened.
+1
it sorta almost leads one to believe that Japanese Canon Fangirls post here where they were claiming that Canon feels they have Canon users trapped enough that it won't matter if the bodies they push out can't keep up as per sensors and even other features at times (still not a hint that they are actually moving any DSLR sensors to new fabs and the panny gets 4k and yet the super new 7D2 which was promised to have revolutionary video and this and that is still 1080p)
and yeah the AA filter-less stuff I am not a big fan of, maybe when we get to 180MP FF or 60MP APS-C or something.
Yeah, we really need sensors to significantly oversample the lens before we can legitimately start dropping AA filters. Otherwise we just end up WITH aliasing, and that's never good.
I was not really interested in the 7D II being a big video DSLR anyway...I don't really know that anyone truly was, you just don't get that cinematic look with a smaller sensor...not without having very wide apertures anyway (like a lot of expensive cinema lenses do).
The thing that I think Canon really needed to nail, and which increasingly appears as they will not, is producing a truly new sensor with a fundamentally new design on a smaller fabrication process size. It just isn't happening. If this thing is still a 500nm transistor part...I mean...WOW. That technology is about fifteen years old!! What is Canon doing? It's one thing to be conservative, but now it's just getting ludicrous...
I have always wondered about this, and you may be the guy to answer. Intel's next series of chips is what, 14nm process? I understand that Intel is purely in the microprocessor business, and Canon has to do a lot more than just optimize processes for sensors, but is there any practical reason why sensor transistors are / should be / need to be on such a different scale? Or is it just a matter of business and not wanting to make the necessary investment to keep shrinking? The fact that intel shrinks every other year has just made me wonder... because clearly there's an advantage to a smaller process.
cost.
no one creates large sensors using the latest technology - the A7R / D810E sensor for instance is on 180nm. which is speculated to the be the same as the 70D sensor. D700, D4, etc were even on larger than that (350nm to 250nm)
the toshiba sensor uses 65nm and sony was looking at and just starting to use 90nm for it's APS-C sensors, but unless you're talking the smart phone / compact sensors - there's just no benefit to the smaller geometries over the cost of production with the pixel granularity where it is.
canon's current line of lithography systems can produce chips under 90nm - far exceeding even really what is required by sensors - so it's not as if canon can't if they feel they have to. also to add to that, canon now has the equipment to product down to under 10nm geometries.
To be honest, people are humping on this as the core reason - not really. and most of them don't have a freaking clue, but all of a sudden turn into electronic and chip designers (not to mention camera designers too). canon certainly has a problem "downlevel" from the pixel - but their QE from their current 70D isn't that much off than the D5100's QE and even cutting the pixels in half they improved the QE by 10% over the 7D sensor level spec.