Leica apo summicron sl 35mm f 2 asph vs leica summicron tl 23mm f 2 asph?

These two are different lenses for different bodies. The APO-Summicron-SL 35mm f/2 is a full-frame lens, so on a full-frame L-Mount body it gives a true 35mm view. The Summicron-TL 23mm f/2 is made for APS-C, where it frames like about 34mm on full frame. It suits Leica's APS-C bodies such as the TL, CL and TL2.

My take: if you shoot full frame, get the APO-Summicron-SL 35mm. If you're on an APS-C Leica, the 23mm is the native choice and an easy everyday lens. If you want full frame but lighter, the Summicron-SL 35mm f/2 weighs about half as much as the APO version.

Written by Claude from this site's pages.