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Old Dec 17, 2009, 10:09 PM   #1
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What are your opinion of the ef 100mm f2 vs ef 85mm f1.8? Which one would you rather haver?
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Old Dec 18, 2009, 1:46 AM   #2
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optically they are pretty much equal. both are tack sharp and show good contrast.

it really depends on which focal length is most appropriate for your intended use. on a crop body, the 85 1.8 usually ends up being more useful in general.
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Old Dec 18, 2009, 4:59 AM   #3
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As Dustin says they are both good lenses but it really depends on what you are looking to shoot. I think the majority of us that have one of them will have the 85, well that's what I see here when someone posts that it is more often the 85 than 100.

What application are you looking for?
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Old Dec 18, 2009, 8:11 AM   #4
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I have the 85mm. I am trying to decided weather to pick up the ef 100 instead or stick to my original plan and get the ef 100mm f2.8 marco.

Landscape and building, need to decide by 4pm today, need to jump on a plane to fly to Rome for Vac tonight. I have a bunch of zooms.

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Old Dec 18, 2009, 9:05 AM   #5
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Landscape and architecture? Why 85mm or 100mm for those on a crop camera?
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Old Dec 18, 2009, 9:29 AM   #6
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Quote:
Originally Posted by JohnG View Post
Landscape and architecture? Why 85mm or 100mm for those on a crop camera?
I 2nd that. Also what zooms do you have as the wide apertures are not going to make a big difference in these situations.
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Old Dec 18, 2009, 1:42 PM   #7
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I have a eos 1 also
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Old Dec 18, 2009, 1:46 PM   #8
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OK. Even on a film camera, 85mm and 100mm is an odd choice for landscape and architecture. Great portrait lenses, yes. But too short for detailed shots in architecture and not wide enough. Do you have some sample shots of the type of work you're after? Again, just doesn't seem like a mid length prime lens is a good fit.
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Old Dec 18, 2009, 1:49 PM   #9
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I am looking at shooting steples and the up part of the coliseum and stuff like that. I have the 28-135 for the wider angle shots, but thought a non zoom may be a good idea for the stuff that is a bit further away without distortion.
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Old Dec 18, 2009, 3:57 PM   #10
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I wouldn't use that as a reason.

Here is the information on lens distortion with your 28-135 http://www.photozone.de/canon-eos/19...review?start=1

There is a small amount at the middle and long ends but nothing to get concerned about that would cause me to spend so much money for what is likely to be a very limited use.
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