Hellicoid adapter

[photografity]

I was wondering if anyone has experience with other adapters beside hawks?

http://www.ebay.ca/itm/Leica-M-Lens...ultDomain_0&hash=item3cc3f22a9b#ht_1831wt_962

 

[dmcgoy]

I've got one of those mounted to a CV 40/1.4. It's eh. I haven't tried a Hawk's, so maybe this is the norm, but it's wobbly* and really needs an infinity lock. It does make a significant different for the close focusing, so I'll put up with the annoyances.

* it's wobby because the "helicoid" isn't made with very tight tolerances. It does "focus" relatively smoothly.