28mm
Central 400px from 1840px scan of negative with the 28mm, this is at the full f/3.5 aperture and the closest focus distance of 30cm.
Keith Peter Burnett’s blog about Maths teaching and ILT
Central 400px from 1840px scan of negative with the 28mm, this is at the full f/3.5 aperture and the closest focus distance of 30cm.