Rumors > Lenses
How many lenses could you mount on a 5DMkIII?
epsiloneri:
--- Quote from: jc88 on October 29, 2010, 05:36:37 AM ---You haven't considered the number of people who will upgrade from a 5DMkII for reasons other than a larger sensor, such as those moving away from the awful AF system.
--- End quote ---
I don't see how an increased pixel count nor improved AF is going to force people to update their lens collection. It's not like their current lenses would perform worse with a new camera (hopefully...). I agree that an increased pixel count doesn't add much if you're oversampling your lens resolutions, but it doesn't make the lenses worse. The only problem would be file sizes, if you insist on shooting full resolution and don't have the resources to back it up. Low S/N could be another area, unless you can bin efficiently. But let's not exaggerate those problems, it will not be a factor 2 different. It will in any case not force anyone to buy new lenses.
epsiloneri:
--- Quote from: Flake on October 29, 2010, 05:59:34 AM ---no matter how good a lens is physics dictate that the corners will never be as good as the centre
--- End quote ---
Are you saying it is physically impossible to construct a lens which is better in the corners than in the centre? :P
Flake:
Yes!
Cosine 4 applies to the edges so does Cosine 3 I've never seen a lens even perform as well at the corners and edges as the centre on a 35mm system. Of course some are better than others, and if you use a FF lens on a crop system there's less of a problem, but you aren't using the corners & edges
Justin:
The sensors aren't bigger. They are denser. When you compare the APS-C sensors with the full frame ones, the density is still not close. What you have to worry more about is what one poster described as the relative resolved resolution in the center versus the corners. With older lens designs we will continue to see the contrasts between these areas of the image exacerbated. I'd guess the 100 2.8 IS L, 17 and 24 tse, 70-200 2.8 IS L II, and most of the super telephoto lenses vers. I and II will shine corner to corner on a new dense 30+ mpx sensor. Older lenses, less so. What I resent is that the new tech starts out at msrp and drops precipitously within 6-9 months then levels off or goes up over time. There shouldn't be such a penalty for first adopters. While not really analogous in terms of tech, I appreciate Apple's behavior with its pricing. I just wish as early adopters didn't get penalized so much for being willing to try new tech.
--- Quote from: jc88 on October 28, 2010, 09:00:08 PM ---With rumours flying around about a 25mp+ 5DMkIII likely to see our stores next year, how many of the current lineup of Canon lenses have the resolving power to utilise such a large sensor?
Honestly I see this move to big sensors as an excuse for Canon to update their lenses and bully consumers into update their current equipment if they want to utilise a new FF system with proper AF. /2cents.
--- End quote ---
Edwin Herdman:
Re: How many lenses could you mount on a 5DMkIII?
The answer is...one at a time!
"Resolving power" and all these other close-if-not-entirely-subjective criteria people put in...you can have a "sharp enough" 50mm but it won't take the place of a 300mm or a wide angle, so you have to shoot with what you've got.
In terms of the question about whether Canon has enough lenses to resolve new sensors...I'm sure they're working on it.
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