Misinformation about m4/3

Started 6 months ago | Discussions thread
Steen Bay
Veteran MemberPosts: 6,188
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Re: Tom, easy solution
In reply to Marty4650, 6 months ago

Marty4650 wrote:

Tom Caldwell wrote:

So what crop factor will medium format have when it hits the popular public use trail? Or will users of medium format just read the focal length of their lenses of the the lens body and happily compare this to the focal length of everything else which is at present related back to 135 film standards on pretty well every lens in the pack.

A FF sensor is 36x24mm

The sensor in the Pentax 645D is 44x33mm

If you do the math, this means the medium format Pentax has a crop factor of 0.59.

Sensor diagonals are 55mm vs 43.27mm, so the crop factor of 645D is 0.787x.

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