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Thread started 13 Oct 2009 (Tuesday) 13:31
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Canon 7D

116 posts
Joined Apr 2008
Location: Virginia Beach, VA, USA
Oct 13, 2009 13:31 |  #1

Wonder how this new DSLR will do with an MP-E 65mm lens and 18 megapixel crop sensor? Anyone tried this or thinking of trying it? Seems to do pretty well at high ISO's from what I'm seeing on the web.

I was considering the 5D Mark 2 until this model came out :cool:

Senior Member
391 posts
Likes: 1
Joined May 2008
Oct 15, 2009 04:48 |  #2

I think a slight concern is that the diffraction limited aperture is under f/7, so you'll start losing detail if you stop the 7D down too much. (external link) - flickr (external link) - stomping ground (external link)
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Lester ­ Wareham
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Joined Jul 2005
Location: Hampshire, UK
Oct 16, 2009 12:43 |  #3

I have the 7D and will let you know when I get a chance to play with it. Two weeks and I have only had time to use it twice in anger.

About the higher resolution

1. Yes it will show the LENS diffraction limiting more than a lower resolution camera, note it is the lens that is diffraction limited not the sensor

2. If you do the maths you will see that a higher resolution sensor always gives more detail even if the lens is into difraction limiting. There are diminishing returns however.

3. If it bugs you (unashamed punning) you can use one of the lower resoluton settings.

The big thing about the 7D is the AF system, so if your sole interested is macro it might be overkill choice, try a 50D or 5D2 or wait for the 60D.

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Canon 7D
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