Oh, and what would I like to see? Enough of this crappy AF on anything but 1 Series. Nikon is ruling Canon on AF. My 5DII suits my needs, but I'd love to have gotten the 7D AF system in it.
The lack of an upgrade in the AF system between the 5D and 5DII is pretty much why I didn't buy one, and ended up (later) getting a 7D.
As a crop-body I'm pretty happy with my 7D. It does everything I want and does it pretty well. Built-in GPS would be nice, but not really essential.
I'd like to have GPS (assuming that it isn't a battery-eater) as I think that it is an element of being "future-proof" to some degree even if I'm not extensively using that specific feature today.
I'd like a lower-price full-frame body.
Its probably as realistic to instead "settle" for my salary doubling.
Auto focus points on the rule of third lines rather than all bunched around the centre would be great.
LOL... seems so obvious doesn't it? I could probably live with just 5 focus points if they were configured this way (one at each intersection of thirds and one in the center).
I think that there's some already that are pretty much "close enough" to thirds lines - - if so and as such, programming in different set of prioritized focus points does appear to be something that should be a straightforward firmware revision (another default type of setting).
I wish they would bring back focus point selection based on where your eye is looking in the viewfinder as well. They had this 15 years ago in their film cameras.
Had this on my Elan IIe ... enjoyed its utility, although it wasn't particularly fast or reliable while wearing (perscription) sunglasses.
A larger LCD screen with a touch interface would be nice...
My personal use case prefers buttons (even without UI issues, as was already mentioned by
rebby), because one of my investments in the 7D is for an underwater housing system. UW housings classically have a plethora of spring-loaded controls on it to be able to actuate (most of) the camera's various control buttons, and with these currently being dedicated buttons, they don't obscure the LCD display. I'm not sure how any UW housing designer would be able to reconcile this if the LCD were to pull double-duty as both controls + display.
Finally, I'd like to see cameras like the 7D and 5D that are within my budget using SD flash instead of CF. CF is just archaic and support for it in consumer devices is non existent, requiring an additional reader/dongle.
Doing just a quick, not thorough, search in Amazon shows me the most expensive SD Card works at 22MB/s, whereas the fastest CF Card works at 90MB/s. Pro-level cameras wont' see SD as the main storage anytime soon. When I'm pushing 25-30MB RAW files in my 5DII I want to have a large buffer that empties quick, CF can handle that, SD can't...
I'd rather stay with CF too ... particularly since I now have built up 150+GB worth of reasonably fast cards that wouldn't be cheap to replace.
For those that don't have such a preexisting investment, there's already the work-around of buying a SD-CF adaptor for $20, and using SD cards. However, at the same speed rating, SD cards are more expensive than CF ... for the speed ratings for where SD cards exist. For maximum performance I/O rates, CF media is still King of the Hill by a wide margin.
FWIW, in this general area, what I'd like to see is a 7D (or equivalent) which is able to take a full rez still photo during a 1080p HD video ... no pause/gap. Similarly, a lot better/faster AF while in video mode, and some other elements along those lines. I do recognize that a dSLR is intended to be a still camera first, but I think that there's nevertheless a lot of video 'features' that already exist in low end P&S cameras that create an inequity...I shouldn't have to swap out a 7D for a piddly $99 A590 to get better quality (if non-HD) video.
First and foremost, I'd like to see Canon go mirrorless.
I'm happy with the 5D / 7D camera size for 'semi-pro' type use, but I'd definitely like to see the 550/600D range of cameras shrink, and I'd like to see the mirror disappear in the process. The mirror-less range would need it's own range of lenses of course - with primes amongst them.
I'm not sure if I'm thinking in the same direction or not: I'd like to see a dSLR version of the 1995 vintage EOS-1N RS (and no requirement for new lenses).
The 1N RS had a fixed pellicle mirror which did hurt low-light performance by ~2/3rds of a stop, but allowed for an increase in maximum frames/second...and in a dSLR would probably seal off the sensor, making it less vulnerable to dust & cleaning issues. We've had huge gains in effective ISO performance, so to trade-off some of this into other performance areas doesn't really seem like it would be a huge sacrifice, particularly since the 1995 technology's 2/3rds of a stop worth of a loss can probably be improved by today to at least no more than a 1/2 stop. Thus, the current performance at 6400 ISO would drop to a "mere" ISO 4800, etc.
-hh