nameBrandon Posted June 25, 2014 Share #1 Â Posted June 25, 2014 Advertisement (gone after registration) Just curious if longer lenses (in general) have stiffer focusing rings than shorter lenses? Â I ordered two lenses from KEH to evaluate.. a 90mm Summicron-M (v3) and a 90mm Elmarit-M 2.8. Â The Elmarit rotates similarly to my Zeiss 2/50 and Nokton 35, pretty freely but far from moving on their own. It will definitely stay in place unless moved intentionally. Â The Summicron-M on the other hand requires ~2-3x the force to rotate. Granted I'm moving larger glass, but even the Nokton 35 1.2 isn't this stiff, so I don't think the weight of the glass is the issue. Â It seems like for telephoto lenses one might want a stiffer ring, since usually you're not jumping back and from from infinity to MFD, but I'm not 100% on that. Â Just curious if all M-mount focus rings have a standard 'stiffness' they're calibrated to, or if perhaps I just received an overly stiff Summicron-M (or perhaps a 'loose' Elmarit-M)? Link to post Share on other sites More sharing options...
Advertisement Posted June 25, 2014 Posted June 25, 2014 Hi nameBrandon, Take a look here 90mm focus ring, stiff?. I'm sure you'll find what you were looking for!
CaptZoom Posted June 25, 2014 Share #2 Â Posted June 25, 2014 My copy of the 90mm F/2.8 (latest version with built-in hood) rotates smoothly and freely, and feels very well dampened- no chance whatsoever of it moving on its own. By way of comparison it feels more dampened and requires more effort to move than the Ziess 50mm f/2 Sonnar. Â Can't comment on the CV lens nor the 90mm 'cron. I don't own either of them. Link to post Share on other sites More sharing options...
nameBrandon Posted June 25, 2014 Author Share #3 Â Posted June 25, 2014 Thanks.. The Elmarit feels normal.. The Summicron-M definitely is stiffer than what I'm used to, but it is smooth across the entire throw.. Hrmm, maybe I can find a shop locally with a Summicron-M to evaluate it against. Link to post Share on other sites More sharing options...
LeicaPassion Posted June 26, 2014 Share #4 Â Posted June 26, 2014 The Summicron-M definitely is stiffer than what I'm used to, but it is smooth across the entire throw. Â Mine is the same. Link to post Share on other sites More sharing options...
DigitalHeMan Posted June 26, 2014 Share #5 Â Posted June 26, 2014 My v2 Summicron was also stiff. A CLA loosened it up somewhat, but it is still a lot stiffer to shorter lenses Link to post Share on other sites More sharing options...
Washington Posted June 30, 2014 Share #6 Â Posted June 30, 2014 Most likely it will loosen up when used. Link to post Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.