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Mamiya Sekor E 200 mm F4
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PostPosted: Mon Feb 04, 2013 6:00 pm    Post subject: Mamiya Sekor E 200 mm F4 Reply with quote
got this lens as my first mf lens...will get its adapter shortly...if some member have this lens,kindly post some pics taken wth this lens..also can someone comment on its performance..thnx Smile


PostPosted: Mon Feb 04, 2013 6:19 pm    Post subject: Reply with quote
Hey Welcome! Nice to see you! I look forward many shoots from your exotic country, I never had this lens, most 200mm fine really and this one carry a good brand name.


PostPosted: Mon Feb 04, 2013 6:25 pm    Post subject: Reply with quote
Mamiya E series lenses can't be adapted as the apertures are electronically controlled. It would be possible to physically mount the lens but no way to control the aperture. It is possible to modify the lens but it is complicated and requires a lot of work.


PostPosted: Mon Feb 04, 2013 6:58 pm    Post subject: Reply with quote
Crying or Very sad


PostPosted: Mon Feb 04, 2013 7:24 pm    Post subject: Reply with quote
hmmm...will change it with 135 FD


PostPosted: Mon Feb 04, 2013 8:13 pm    Post subject: Reply with quote
Sorry to be the bearer of bad news Ali. The Mamiya lenses are excellent, among the best, but sadly of little use these days. I have owned a few of them and I discovered that working Mamiya Z series bodes to work with these lenses are hard to find, there are plenty of them but most don't work, so after failing to find a working one I reluctantly sold the lenses.


PostPosted: Mon Feb 04, 2013 8:48 pm    Post subject: Reply with quote
iangreenhalgh1 wrote:
Mamiya E series lenses can't be adapted as the apertures are electronically controlled. It would be possible to physically mount the lens but no way to control the aperture. It is possible to modify the lens but it is complicated and requires a lot of work.

Correct me if I'm wrong, but aren't the Mamiya E lenses actually electro-mechanically controlled? In other words, the diaphragm is electronically controlled, yet the lenses' diaphragms are actually mechanically linked. So essentially, they're no different than Nikon G, modern Pentax or Minolta/Sony AF lenses (mechanical diaphragm lever, no aperture ring). What this means is (as previously stated) they cannot really be adapted to dSLRs but will work with mirrorless bodies IF you can find an adapter with built-in aperture control (as far as I know, this doesn't yet exist for this mount due to general obscurity).


PostPosted: Mon Feb 04, 2013 9:52 pm    Post subject: Reply with quote
No, there's no mechanical linkage at all, just some electrical contacts. There isn't even any mechanical connection between the aperture ring and the aperture itself, hence you have to extensively rework the lens to be able to control the aperture at all without a Mamiya Z series body.


PostPosted: Mon Feb 04, 2013 11:58 pm    Post subject: Reply with quote
I did it once and I can confirm that aperture ring have no direct connection to aperture mechanism. If anyone is interested what was procedure then, please look here for some details: http://forum.mflenses.com/viewtopic.php?t=47942


PostPosted: Tue Feb 05, 2013 2:18 am    Post subject: Reply with quote
iangreenhalgh1 wrote:
No, there's no mechanical linkage at all, just some electrical contacts. There isn't even any mechanical connection between the aperture ring and the aperture itself, hence you have to extensively rework the lens to be able to control the aperture at all without a Mamiya Z series body.

Wait, we're talking about Mamiya E lenses here, not EF.. correct?

I know very little about the plethora of different Mamiya mounts, but it seems like the Mamiya E lenses had the mechanical linkage (with non-coupled aperture ring) while the Mamiya EF lenses were purely electronic.


PostPosted: Tue Feb 05, 2013 8:57 am    Post subject: Reply with quote
Andrew G. wrote:

Wait, we're talking about Mamiya E lenses here, not EF.. correct?


They are the same. Only cosmetic changes (more electric contacts for example).


PostPosted: Thu Feb 07, 2013 1:29 am    Post subject: Reply with quote
Upon doing a bit of research, Mamiya E and EF lenses both have mechanical diaphragm levers along with the electrical contacts. Therefore, they would be useable if someone were to make a mirrorless adapter with built-in aperture control (again, akin to those for Nikon 'G' lenses).


PostPosted: Thu Feb 07, 2013 2:35 am    Post subject: Reply with quote
There is a lever, yes, but there are no adapters available and I doubt anyone will ever make one and put it on the market, there just aren't that many people out there with Mamiya lenses and mirrorless cameras. The 1.7/50 and 2/50 lenses are fairly common to see for sale, the 4/200 and 2.8/135 come along fairly often, the 3.5/28 is seen from time to time, but the others, they are all hard to find, the superb 3.8/80-200 zoom is like hen's teeth, hence I sold mine for a hefty sum. Some of the lenses I have never seen for sale.


PostPosted: Wed Mar 12, 2014 3:19 pm    Post subject: Reply with quote
iangreenhalgh1 wrote:
There is a lever, yes, but there are no adapters available and I doubt anyone will ever make one and put it on the market, there just aren't that many people out there with Mamiya lenses and mirrorless cameras. The 1.7/50 and 2/50 lenses are fairly common to see for sale, the 4/200 and 2.8/135 come along fairly often, the 3.5/28 is seen from time to time, but the others, they are all hard to find, the superb 3.8/80-200 zoom is like hen's teeth, hence I sold mine for a hefty sum. Some of the lenses I have never seen for sale.


Fotodiox makes an adapter with mechanical control for the the aperture.

http://www.amazon.com/Fotodiox-Adapter-Olympus-Panasonic-Mirrorless/dp/B00AUKDU5W

The design is conservative (causes no damage) and imprecise, but it does focus correctly.



I don't mount the 200mm or the 80-200mm very often on the adapter because it is just too much to handle, but I frequently use the 135/3.5, 28/3.5 and several 50s with good results — or at least as good as I can manage. Wink





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