Color correction, micro contrast and additional sharpening for f/16 and f/22 are discussed.
Robert F writes:
Thanks so much for your testing of the new Sigma 180.
I have had the lens since December and use it (along with a Nikon 300 f4) exclusively for butterfly photography.
This morning (after viewing the comparative doll shots) I was SHOCKED to see the performance at f22 – I have been afraid (and never considered) using the lens at such a small aperture.
Your subscription price is a bargain!
DIGLLOYD: Yes, on a D800E, f/22 is best avoided for most purposes. See MTF at f/22 with the Zeiss 135mm f/2 APO-Sonnar.