bucs
Well-known
I have read that the 21 4.0 SA in M mount can be used in LTM bodies by removing the bayonet mount which is screwed onto the body.
Can anyone confirm this? TIA!
Nathan
Can anyone confirm this? TIA!
Nathan
21 f/4 Super Angulon M mount
- Thread starter bucs
- Start date
- Latest activity Latest activity:
- Replies 19
- Views 2K
jenhao
Established
Nathan,
I have one of these lenses. There is a tiny set screw that you will have to unscrew. Be prepared to catch it 🙂 After removing the bayonet mount, you have a regular LTM mount.
I don't believe that all 21mm f/4 M mount lenses will allow you to do this. I'll leave this question to the Leica experts!
This lens works well for me on film.
Mark
I have one of these lenses. There is a tiny set screw that you will have to unscrew. Be prepared to catch it 🙂 After removing the bayonet mount, you have a regular LTM mount.
I don't believe that all 21mm f/4 M mount lenses will allow you to do this. I'll leave this question to the Leica experts!
This lens works well for me on film.
Mark
michaelwj
----------------
According to the Leica Camera Forum wiki, all the f/4s have this mount. But, there are always exceptions!
http://www.l-camera-forum.com/leica-wiki.en/index.php/Super-Angulon_f=_2.1_cm_1:4
http://www.l-camera-forum.com/leica-wiki.en/index.php/Super-Angulon_f=_2.1_cm_1:4
bucs
Well-known
bucs
Well-known
Is it this screw on the side of the mount?
https://www.dropbox.com/s/t8v7zzxwsg2hhah/P1010564.JPG?dl=0
Nathan
https://www.dropbox.com/s/t8v7zzxwsg2hhah/P1010564.JPG?dl=0
Nathan
radi(c)al_cam
Well-known
Well … This ^ list is more confusing than helpful, there are too many lenses admixed that aren't the original SUPER-ANGULON 1:4/21mm aka «SUOON».
(Let alone the designation «Super-Angulon f= 2.1 cm 1:4» is an invention of that forum over there [obviously, one can call that Bravo Sierra, I'd say].)
And: Has anyone ever seen a «SUOON-M» made after say 1963 having the aforementioned removable M-adapter? — I guess it's an urban legend.
According to Dr. Bawendi, only about 1.400 SUOON were made.
michaelwj
----------------
That list is a bit long, as the f/4 model was not made until 1980. The 3.4 model takes over from 1964 (or 63 or 67?) through to 1980 (or 81). So one must presume that the f/4 list contains R lenses, or f/3.4's in M (or R) mount. Some cross referencing is required to really drill down into the list. But, the page clearly states;
Whereas the f/3.4 page lists the mount type as;
Which clearly doesn't state that the convertible mount exists in the f/3.4 version. (I've never seen a f/3.4 is thread mount though...)
In the end, it turns out that there are exceptions to every rule, and you only know when you see it.
radi(c)al_cam
Well-known
Thank you, Michael!
Well, not only the «2.1 cm» nonsense, and this until the 1980s, additionally they're talking about an «addaptor», whatever that might be 😉
michaelwj
----------------
I think we may have a lost-in-translation situation from German, I assume through several languages, before finally into English of some sort. 🙂
And being European, it surely should be 2,1cm rather than 2.1cm! Such a travesty!
radi(c)al_cam
Well-known
😀 Funnily, the one and only (!?) author of the list in question appears to be Texan (if the email address is an indicator), at least their name is English.
—— Perhaps this author is so proud of their understanding of the metric system (Hey, is 21 millimetres actually 2.1 [2,1] centimetres? Isn't that weird?), that they must show it everywhere 😉 ——
radi(c)al_cam
Well-known
Dear Nathan,
1. I cannot see any picture, can you post it here please?
2. Is it some 16.5 mm [1.65 cm] to the right of the infinity catch?
michaelwj
----------------
Now that I look at the revisions (a self moderating wiki is bound to be accurate with one user 😱) I can start to dig...
I appears that sometime on the 6th of March 2010, the production timeline changed from;
Now, I notice something else. The wiki lists 1462 screw mount and 5292 M mount, but it also lists that all the f/4's were a convertible mount...
Some more digging and the total production of the f/3.4 version is listed as < 5970 lenses.
So... now can we finally see that in the total 21mm (or 2.1cm) Super Angolan production (excluding R mount) was:
~ 1462 convertible screw mount f/4s
~ 5292 (< 5970) M mount f/3.4s
Now, what was the question? 😀
I appears that sometime on the 6th of March 2010, the production timeline changed from;
to;
and we added an additional 20000 lenses that we cannot account for? (Total R mount SA, both f/4 and f/3.4 is less than 10000, so still 10000 unaccounted for) Seems fishy?
Now, I notice something else. The wiki lists 1462 screw mount and 5292 M mount, but it also lists that all the f/4's were a convertible mount...
Some more digging and the total production of the f/3.4 version is listed as < 5970 lenses.
So... now can we finally see that in the total 21mm (or 2.1cm) Super Angolan production (excluding R mount) was:
~ 1462 convertible screw mount f/4s
~ 5292 (< 5970) M mount f/3.4s
Now, what was the question? 😀
michaelwj
----------------
That screw is stopping the M mount unscrewing off the screw mount. I would be careful, its likely been sleeping there for 60 or so years 🙂. Once remover, the M mount "should" just unscrew as if you were unscrewing an LTM-M adapter. Take care, the thickness will not be much and it will probably be stiff.
radi(c)al_cam
Well-known
At least, this one figure makes sense, because:
What question? Screw it!, or mount it! 😛
edit: in previous posts, «1.400» should read «1400» (or «1,400», if you want)
michaelwj
----------------
Riddle of the l-camera-forum wiki page solved!
What do we win? 😀
What do we win? 😀
bucs
Well-known
Pic
Pic
Here ya go
Pic
Here ya go
radi(c)al_cam
Well-known
michaelwj
----------------
michaelwj
----------------
Here ya go
And when you take out the screw what happens?
radi(c)al_cam
Well-known
Here ya go
Very good. That's infinity position, isn't it? And if it were 0.4 m, the screw is very close (some 1 mm right) to the infinity sign, isn't it?
Similar threads
