M42 40mm

[john_fleetwood]

<p>Do any exist? Other than this one, of course:<br>

[craigd]

<p>There's the Voigtlander Normal 40mm f/2 SL Manual Focus Lens for Universal Screw Mount (Pentax M42):</p>

<p><a href="http://www.bhphotovideo.com/c/product/363161-REG/Voigtlander_45BA229APE_40mm_f_2_SL_Manual.html">http://www.bhphotovideo.com/c/product/363161-REG/Voigtlander_45BA229APE_40mm_f_2_SL_Manual.html</a></p>

<p>But realistically, can't you use a 35mm lens instead?</p>

[paul_wheatland]

<p>I had one, it was German, very slow f4.5, pre set, ideal for DSLR but maybe not for the speed? I don't remember the make but it definitely was German, try ISCO, Steinheil, etc.</p>

[JDMvW]

<p>Do like your M42 40mm. I generally prefer a <a href="http://www.historylink101.com/ww2-planes/browning-machinegun.htm">Browning 50mm</a>, myself.</p>

<p>If you were not just looking for an excuse to post, I do have a former web page on M42 lenses in pdf format.</p>

[fred_c1]

<p>Tons of cheap rangefinders out there with 40mm lenses.</p>

[rdm]

<p>Too bad that 40mm ultron is </p>

<ul >

<li > No Longer Available </li>

</ul>

[craigd]

<p>True, but you can find these lenses on eBay if you want one.</p>

[john_fleetwood]

<p>No, I really like 40s. I've got a 40/2 Zuiko on my OM1, an Oly 35 RC with a 42/2.8, and my EF 28/2.8 is a 45 equivalent on my Canon 30D. I'd like a 40 to put on my M3 of SLRs, the Pentax SL.</p>

[john_fleetwood]

<p>Let's try that photo again.</p><div></div>

[Mike Gammill]

During the 50's there were two Kilfitt 40mm lenses (one to 1:2 and another focusing to 1:4). I know you could get them in

Exacta mount but don't know about M42.

[craigd]

<p>Here's a Carl Zeiss Jena 40mm f/4.5 lens for M42 currently being offered on eBay:</p>

<p><a href="http://cgi.ebay.com/Carl-Zeiss-f-M42-4-5-40mm-Tessar-T-/370411684880?pt=Film_Cameras">(LINK)</a></p>

<p>I'm not familiar with the seller. 98.2% positive feedback strikes me as on the low side; I usually buy from 99%+ users. Not a lot of info about the lens, either. Still, it's an interesting data point.</p>

[john_fleetwood]

<p>Wow, f4.5, that's pretty slow. Nice looking lens, though.</p>

[tommyinca]

<p>The Zeiss Jena 40/4.5 was the first wide angle lens for SLR in M42 mount. Normal lens was 58mm at the time. The other Kilfitt 40mm/2.8 also available in M42 mount is a macro lens by Heinz. One version is a 1:1 Makro, the other 1:2. </p>

[fred_c1]

<blockquote>

<p>I've got a 40/2 Zuiko on my OM1, an Oly 35 RC with a 42/2.8, and my EF 28/2.8 is a 45 equivalent on my Canon 30D. I'd like a 40 to put on my M3 of SLRs, the Pentax SL.</p>

</blockquote>

<p>Something wrong with the other cameras? Or is it a form of OCD? ;-)</p>

<p>If you can take a 45mm equivalent instead of 40mm, why not 35mm as well?</p>

[fred_c1]

<p>If you cannot stand to see "35mm" on the front ring, here's an idea: sell the Pentax and get a Konica SLR with a 40mm lens.</p>

[john_fleetwood]

<p>Fred, I've got no problem with 35s. Or 50s, 28s, 105s, or any other lens.</p><div></div>

[Mike Gammill]

<p>Here's a link telling more about the Kilfitt 40mm lenses: <a href="http://cameraquest.com/mackilar.htm">http://cameraquest.com/mackilar.htm</a></p>

[ric_carter1]

<p>Regrets that I found this thread so late. Just three hours ago, from a local antique shop I purchased an Exakta VX with Makro-Kilar E 50/3.5 (1:2) for US$72.25 total. I am happy. It joins my other Forty, a tiny pancake Meyer Helioplan 40/4.5 which a few months ago on eBay cost me US$12.55 shipped.</p>

<p>These are both in Exakta mount. Both are reputedly available in M42, but I have not seen those. I shoot Pentax (d)SLRs. I have devised a simple, non-destructive, totally reversible adaptation of Exakta to Pentax K-mount (PK). Use contact cement to glue an M39-M42 adapter ring around the Exakta bayonet. Use rough sandpaper to grind about 0.7mm from the flange of a cheap clone M42-PK adapter. Mount lens on PK camera; if infinity focus is not achieved, grind the PK adapter a bit more. To reverse the adaptation, use thinner to dissolve the glue and put the lens back in its original state.</p>

<p>I have so adapted a number of Exakta-mount lenses, and enjoy their use. For M42 use, just omit the PK adapter, but infinity focus might not be achievable. With the Makro-Kilar, that hardly matters, now does it?</p>

<p>As for what constitutes a Forty: If we allow 10% tolerance, then the range is 36-44mm and so includes the Mir-1 37/2.8 but not the Chinon 45/2.8. Yes, many rangefinder Forties exist, but those are rather difficult to adapt to dSLRs except for close-up use. Oh no, not ANOTHER macro lens!</p>