Secondary Color Correction with Leica 90/2 APO, Zeiss ZM 85mm f/4 Tele-Tessar, ZM 85/2 Sonnar: Barn Interior (Leica M240)
In Guide to Leica:
This ƒ/2 - ƒ/16 aperture series includes HD and UltraHD images with an evaluation of the relative performance of these three lenses for secondary color correction, namely the dreaded “purple fringing”:
- Leica 90mm f/2 APO-Summicron ASPH
- Zeiss ZM 85mm f/2 Sonnar
- Zeiss ZM 85mm f/2 Tele-Tessar
Includes a discussion of the reasons for the effects.
This backlit scene is a worst-case scenarior for “purple fringing”.