Diffraction and its Impact on Sharpness – By Tony Warren
I recently had some disappointing results while trying out a colour negative film in a Retina IIc. I was shooting the urban art (and some graffiti) that has been created here in Dunedin, and some shots of the rhododendrons in the Botanic Gardens. Many of the frames are distinctly soft in places whilst others are bitingly sharp, despite careful focussing with a well adjusted, rangefinder camera.