Rumors > EOS Bodies
Rebel T3i/600D, T3/1100D? [CR1]
neuroanatomist:
--- Quote from: unruled on January 02, 2011, 07:15:43 PM ---I feel its very early for the 550d to get updated...
--- End quote ---
XSi (450D), released Jan 2008
T1i (500D), released Mar 2009
T2i (550D), released Feb 2010
So, a new xxxD came out in the first quarter of each of the past three years. It certainly makes sense that we'll see a 600D by March...
Justin:
Yup, we're do. Not a rumor if you ask me, but more a prediction based on a solid track record (imho).
Now the better question is if there is anything to distinguish this update with the last update. That is a much harder question. Given the entry-level nature of these dslrs there will always be someone who wants their entry to be the latest and greatest and will buy.
Being that I am in the market for a smaller camera, I'd have to see something compelling to help it compete with Panasonic. I won't hold my breath.
--- Quote from: neuroanatomist on January 02, 2011, 09:29:27 PM ---
--- Quote from: unruled on January 02, 2011, 07:15:43 PM ---I feel its very early for the 550d to get updated...
--- End quote ---
XSi (450D), released Jan 2008
T1i (500D), released Mar 2009
T2i (550D), released Feb 2010
So, a new xxxD came out in the first quarter of each of the past three years. It certainly makes sense that we'll see a 600D by March...
--- End quote ---
JLN:
It's not outside the realms of possibility, but they're really blurring the difference between the 600d and 60d if these specs were real.
spam:
--- Quote from: traveller on January 02, 2011, 01:26:33 PM ---I'm guessing that better contrrast detect AF, and by extension AF in video mode, are beyond the capabilities of Digic 4. I'm sure Canon will need Digic 5 for the 1Ds Mk III replacement, so it is either not ready yet or Canon don't want to debut it in a Rebel. Neither situation is good IMHO.
--- End quote ---
Canon do really fast CD AF on several P&S with Digic IV, AF with a small sensor don't need to be as accurate, but I don't believe Digic IV is the problem with the AF speed. What you need to get better CD AF is higher refresh rates from the sensor, and maybe the main cause for concern for Canon - better control of the lens AF.
USM motors are according to some sources not particulary suited for CD AF algorithms (I've no idea why), but this could be a problem for Canon.
As for new models, a 600D with an articulated screen would make the 60D harder to sell, but would give Canon one unique feature in this segment while they figure out how to make CD AF usable. A 1000D upgrade would make even more sense as just decreasing prices on 450D and 500D (again) wouldn't work too well against the D3100 which feature full HD with AF and a better sensor. A 1100D couold also be the "promised" small dSLR which Canon hope can compete with mirrorless models.
traveller:
--- Quote from: spam on January 03, 2011, 02:38:51 AM ---
Canon do really fast CD AF on several P&S with Digic IV, AF with a small sensor don't need to be as accurate, but I don't believe Digic IV is the problem with the AF speed. What you need to get better CD AF is higher refresh rates from the sensor, and maybe the main cause for concern for Canon - better control of the lens AF.
USM motors are according to some sources not particulary suited for CD AF algorithms (I've no idea why), but this could be a problem for Canon.
As for new models, a 600D with an articulated screen would make the 60D harder to sell, but would give Canon one unique feature in this segment while they figure out how to make CD AF usable. A 1000D upgrade would make even more sense as just decreasing prices on 450D and 500D (again) wouldn't work too well against the D3100 which feature full HD with AF and a better sensor. A 1100D couold also be the "promised" small dSLR which Canon hope can compete with mirrorless models.
--- End quote ---
Like you say, DoF must be a big contributing factor to the overall slowness of DSLR CDAF, as I suspect is the size of the lens elements that need to be moved compared to P&S cameras. I don't profess to understand the electronic engineering behind digital signal processing; is the rate at which data can be read off the sensor mainly limited by the processing power of the camera, is it governed by the architecture of the sensor itself, or is it a combination of the two? Certainly, Panasonic seem to have had this problem cracked for a while on their G-series cameras. If Canon is limited by the architecture of the 18MP APS-C sensor, then it was a bit short sighted of them not to consider video when they were designing it!
An interesting point about USM motors, I hadn't seen this before. It goes against my expectations as USM motors are known not only for their speed, but also for their precision. Does this also apply to micro-USM? (N.B. the Powershot SX1 IS had a USM motor.)
http://en.wikipedia.org/wiki/Ultrasonic_motor (O.K. I know it's only Wikipedia!)
An articulated screen would remove one marketing advantage of the 60D over the 600D, but there are still plenty of reasons to buy a 60D and you can be pretty sure that a Nikon D5000 replacement will feature one.
I like you idea that the 1000D replacement might feature the smaller form factor that Canon have previously suggested as a counter to mirrorless. Even though I don't think that simply shrinking a DSLR will be enough to counter mirroless' popularity, it would still be an interesting development.
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