For wildlife in particular it is a matter of angle of view and the possibility to get your subject in the frame. If I use a FF 300 mm lens on the 36 MP K-1 and crop it in Lightroom to the same angle of view as an APS-C lens of nominal 300 mm I loose a lot of pixels as it would result in 16 MP pictures (MP divided by crop factor squared). I would be better off using either a 24MP APS-C camera with a dedicated APS-C lens, or (more expensive) a max. 450 mm FF lens on the K-1.

Henk

Op 2020-05-16 om 12:59 schreef Alan C:
On 16-May-20 10:21 AM, Henk Terhell wrote:
The Pentax DA 55-300 WR looks like an attractive light lens providing 450 mm maximum.

This is a fallacy. It remains 300mm max. The cropped APS-C simply sees a narrower field of view (2/3 of FF) giving the illusion of a longer focal length.

Alan C




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