I've used the 50/1.4 Nikkor and I own a collapsible Summicron 50/2, and I can tell you they are both top-drawer optics. The Summicron might be the best fifty ever made (even the old ones like mine are astonishingly good), but of course it is "only" an F2 optic. The Rigid Summicron is uncommon in LTM and very expensive (although they appear on eBay), but it's easily available in LTM collapsible and common in M mount in any form. If you have the money for the LTM Rigid though go for it - you'll have a nice collectible as well as a fine lens.


Adv Reply
Supporting both LTM and M mounts leads me to have a majority of LTM lenses. The best of both worlds.



