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[OM] Russian 8 and 16mm Fisheyes for OM?

Subject: [OM] Russian 8 and 16mm Fisheyes for OM?
From: Hughes <hi100@xxxxxxxxxxxxx>
Date: Sun, 30 Mar 2003 20:25:49 -0800 (PST)
Hi Zuiks,

             the Russian made preset 8mm and 16mm lenses are available new for 
very attractive prices. (16mm ~$105 incl shipping, onEbay, and the 8mm ~$200 on 
net) Prices depend a bit on mount supplied with default being Pentax M42. 

see for example: 
http://www.stores.ebay.com/moscowgifts4u/plistings/list/auction/dept5/index.html

net prices are a bit more:

http://www.geocities.com/belshop/content9.html

It appears people find the performance reasonable see:

http://medfmt.8k.com/third/kievwide.html

Writing to the one seller he says that he does not have an OM adapter for these 
lenses. Looking at the photographs of the lenses it appears that the adpater 
for M42 is similar to a T mount with three radial screws. The other adapters 
fit onto the M42 adpaters in some cases, and in others (eg the Nikon) it is 
another adapter something like a Tmount. Since the lenses works with Pentax 
(~45.6mm register distance) and Nikon (~46.6mm register) it should be possible 
to adapt them to work with OM (46mm register). The rear lens element does go 
fairly far back beyond flange, so potentially there could be mirror 
interference on OM's large mirror, but it looks like it should work.  I already 
have an OM 16mm which I really like, but would be interested in the 8mm.   I 
have adapted other preset lenses previously to OM so this looks quite an 
attractive proposition compared with the $1200, 8mm OM.

Does anybody have any experience with one of these lenses eg. in Leica screw? I 
would be particularly interested in dimensions of the raw lens "mount" with 
flange adapter removed. Also is the raw mount a smooth or does it have a screw 
like a TMount?

Regards,

Tim Hughes

TimHughes@xxxxxxxx
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