Why no FF equiv. to EF-S 17-55/2.8?

Started Jan 11, 2013 | Discussions thread
G Rothwell
Forum MemberPosts: 94Gear list
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Re: Does "confusing and unnecessary"...
In reply to Sovern, Jan 12, 2013

I have a 5D mk2 and 7D.

I frame the same scene in the same way on both cameras.

Focal length 50mm on the 7D, 80mm on 5D mk2

Both cameras meter the scene the same ISO 400, f5.6, 1/100

I would like the DoF on both photos to be the same, so on the 7D I need to change the aperture to f3.5, and the ISO to 160. (to keep the shutter speed the same)

Am I missing anything?

If you are lucky enough to have both FF and crop chances are you won't ever worry about this.  You don't buy different cameras to get the same images!  I use the 5D mk2 for landscape and the 7D for wildlife.

If you are trying to decide which is better for you, you need to think about what is important in your photos.  FF has an advantage if you want shallow DoF, crop has an advantage for telephoto.  Everything else (that I can think of) is more specific to the camera itself, getting value for money, do you only want to buy FF lenses in case you go to FF from crop, flash control, etc.

Graham

 G Rothwell's gear list:G Rothwell's gear list
Fujifilm X100S Canon EOS 5D Mark II Canon EF 50mm f/1.4 USM Canon EF 100-400mm f/4.5-5.6L IS USM
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