arad85
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- Name
- Andy
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I've got a legacy lens question if someone can help. Am I right in thinking that with a crop factor of 2, my G1 will turn an 85mm f2.8 into a 170mm f5.6?
Thanks
No, it's gained a FOV similar to a 170mm f2.8 ( max aperture remains the same)
Not quite the full answer. It has the same field of view and "speed" as a 170mm f2.8 lens, but will give the equivalent depth of field of the 170mm lens set to f5.6 on a full frame camera.
Put another way, if you take a photo on a u4/3 camera with an 85mm lens set at f2.8 and take the same (i.e. from the same spot of the same subject) photo on a full frame camera with a 170mm lens set to f5.6 and then print them to the same size, the depth of field will be pretty much the same.


