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Forum: Pentax SLR Lens Discussion 01-04-2017, 07:33 AM  
DA200 2.8 - good for portraits (on a K1)?
Posted By Lowell Goudge
Replies: 31
Views: 3,876
you need to consider that this would be outdoor portraits only or very close up head shots, because you need to consider the working distance


image size = subject size x focal length / distance

if you consider a head and shoulders shot to be lets imagine 360 mm (simple for math) and vertical format of the K1 is 36 mm, with a 200 mm lens this means a working distance of 2 meters, likely a little more,
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