ejd Posted February 19, 2009 Share #1 Posted February 19, 2009 Advertisement (gone after registration) Does the short mount for using a 135mm lens on a visoflex (ZOOAN) work only with the f4.5 Hector? Or can one use the f4 Elmar in it also? Are any other lenses compatible with it? Is there in fact a different short focussing mount for the Elmar? As this post seems to suggest: ZOOAN vs. 14071 I bought a short focussing mount recently, intending it for use with a Hector, but now having seen one or two posts on the internet, I wonder if it is indeed the one for the Hector, as it is not marked 'ZOOAN' I don't have a lens to use it on yet, but the lenses seem very common (compared with the mounts). Any advice gratefully received. John Link to post Share on other sites More sharing options...
Advertisement Posted February 19, 2009 Posted February 19, 2009 Hi ejd, Take a look here short focussing mount "pict added". I'm sure you'll find what you were looking for!
jc_braconi Posted February 19, 2009 Share #2 Posted February 19, 2009 Does the short mount for using a 135mm lens on a visoflex (ZOOAN) work only with the f4.5 Hector? Or can one use the f4 Elmar in it also? Are any other lenses compatible with it? Is there in fact a different short focussing mount for the Elmar? As this post seems to suggest: ZOOAN vs. 14071 I bought a short focussing mount recently, intending it for use with a Hektor, but now having seen one or two posts on the internet, I wonder if it is indeed the one for the Hektor, as it is not marked 'ZOOAN' I don't have a lens to use it on yet, but the lenses seem very common (compared with the mounts). It works with the Elmar 4/135 head also, just checked again now. Link to post Share on other sites More sharing options...
luigi bertolotti Posted February 19, 2009 Share #3 Posted February 19, 2009 For what I know, ZOOAN does not bear its code engraved... the easiest way to distinguish it from the 14071 is looking at the depth of field scales: ZOOAN, being for Hektors, is 4,5 to 32 while 14071 is 4 to 22. I think they are de facto interchangeable... Leitz detailed that some Hektors (to s/n 241.000 and from 245.000 to 245.800 ) needed factory modification to fit ZOOAN. I have ZOOAN only: you can mount Elmar 135 f4 head... focuses to infinity... never verified the correspondance between real distance and distance you read on the focus scale... anyway, you are using a Visoflex and focus is correct by reflex viewing. Link to post Share on other sites More sharing options...
ejd Posted February 19, 2009 Author Share #4 Posted February 19, 2009 JC -- many thanks for that. I'll try out an Elmar perhaps, as it is -- I read -- a better lens than the Hector. And Luigi -- many thanks for your info too. Just checking the mount I have, the dof scale is marked from 4.5, so it appears to be a ZOOAN. Many thanks! John Link to post Share on other sites More sharing options...
jc_braconi Posted February 19, 2009 Share #5 Posted February 19, 2009 never verified the correspondance between real distance and distance you read on the focus scale... anyway, you are using a Visoflex and focus is correct by reflex viewing. It matches JC -- many thanks for that. I'll try out an Elmar perhaps, as it is -- I read -- a better lens than the Hector.And Luigi -- many thanks for your info too. Just checking the mount I have, the dof scale is marked from 4.5, so it appears to be a ZOOAN. Please check different engravings on Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/77279-short-focussing-mount-pict-added/?do=findComment&comment=814451'>More sharing options...
ejd Posted February 20, 2009 Author Share #6 Posted February 20, 2009 Thanks for the pictures. Interesting variations. Mine is different from these. It is chrome not black, dof from 4.5 to 32, scale in feet, no metres, has the little horizontal 'R' to the right of the marker. It takes almost a full 360 degree turn to go from infinity to 5 feet. John Link to post Share on other sites More sharing options...
jc_braconi Posted February 20, 2009 Share #7 Posted February 20, 2009 Advertisement (gone after registration) John I add a pict in the German forum in a post dealing with the same item. http://www.l-camera-forum.com/leica-forum/leica-sammler-historica/78302-kurzer-stutzen-f-r-hektor-13-a.html Link to post Share on other sites More sharing options...
ejd Posted February 21, 2009 Author Share #8 Posted February 21, 2009 This is the mount that I have: Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/77279-short-focussing-mount-pict-added/?do=findComment&comment=815654'>More sharing options...
luigi bertolotti Posted February 21, 2009 Share #9 Posted February 21, 2009 That's exactly as mine. Link to post Share on other sites More sharing options...
carlos.paula Posted March 13, 2013 Share #10 Posted March 13, 2013 Dear friends, recently I purchased a SM Hektor 135mm whcih works fine when directly mounted on my IIIf.So, I have a PLOOT (the first Visoflex model) and just purchased a ZOOAN short mount focusing unit. Well, when I use only the front component of the Hektor, screwed into the ZOOAN and monting this set on the PLOOT, I have not infinite focus at all. Am I using the wrong components? Link to post Share on other sites More sharing options...
luigi bertolotti Posted March 13, 2013 Share #11 Posted March 13, 2013 Welcome to the forum !!! - fine you entered through such an old thread... - but it's the usual people that surf around this section...and we are stll here more than 4 years later (this is a GREAT forum, keep in mind ) Well... about your problem... it ought NOT to be like this... in theory, PLOOT + ZOOAN + Hektor 13,5 lens head ought to be a fully usable set - focusing to infinity... Some things to check : - Which is the s/n of your Hektor ? - Is the ZOOAN a, let me say, genuine ZOOAN ("4,5-32") and not a 14071 ("4-22") ? - When you dismount the Hektor's lenshead, isn't there a SHIM under the back part of the front ? - (trivial) did you screw right, to the end, all the 2 threads (ZOOAN to PLOOT - lenshead to ZOOAN) ? And finally (as often is in this forum )... pictures of the items we are speaking of are always appreciated , and often of help to solve some little mistery... . Link to post Share on other sites More sharing options...
carlos.paula Posted March 13, 2013 Share #12 Posted March 13, 2013 Ok, thank you for your great welcome to me! Thanks a lot. The Hektor have the serial number 825.252. The ZOOAN is 4,5-32. I do not know exactly what means " a SHIM under the back part of the front". I will post soon some pictures. Yes, I screw all the pieces at the right way... I will show you in the pictures... Best regards. Link to post Share on other sites More sharing options...
luigi bertolotti Posted March 13, 2013 Share #13 Posted March 13, 2013 Shim... in italian "spessore" ... "espesor"... a flat metal ring that, for instance, my Elmar 135 does have between the lenshead and the (standard) focusing mount... clearly it was added at the factory to fine-tune the effective distance between lenses'group and film plane... if you keep it when mount the lenshead on other gear it alters (1 - 1,5 mm...) the global focusing, and it could PREVENT the infinity focusing... lenses' group could need to be a little closer to film plane... but I never checked with my Elmar... my Hektor hasn't any shim, but maybe they could have... probably there were tolerances in manufacturing that could require such little adjustements. Link to post Share on other sites More sharing options...
carlos.paula Posted March 14, 2013 Share #14 Posted March 14, 2013 Luigi, now I understand... I am from Brazil and to me, words in italian are more easy to understand. My wife's grand-parents are italians, la famiglia Benassutti, becoming to Brazil from Verona and Treviso near 1897. Well, my Hektor does not have any ring, or spacer. I will submit the pictures, today. Link to post Share on other sites More sharing options...
carlos.paula Posted March 14, 2013 Share #15 Posted March 14, 2013 Here the components, separately and mounted... The PLOOT, the ZOOAN, the complete Hektor 135mm, the ZOOAN and the lens of the Hektor, the PLOOT with ZOOAN ans Hektor lens and everything mounted on the camera. Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/77279-short-focussing-mount-pict-added/?do=findComment&comment=2271648'>More sharing options...
luigi bertolotti Posted March 15, 2013 Share #16 Posted March 15, 2013 Thanks... such a set ought by sure to focus correctly, from infinity to 1,5 m... there is a possibility : the focus is CORRECT on film plane, but is NOT CORRECT in the reflex viewing system : it can happen for misalignements within the mirror box or within the ocular that fits to the PLOOT's ground glass. I am not expert on PLOOT, and don't know if it has adjusting points : the later Visoflexes do have such regulations, and there are labs who perform such delicate adjustements (a name that comes to my mind is Van Manen in Holland) ; and, moreover, I haven't the ocular that is mounted on your PLOOT so can't say anything about it (JC probably does... ) Of course, it's easy to verify if is a problem of the viewing sistem : take some shots at infinity regardless of what you see in the viewfinder, and see how they are. Link to post Share on other sites More sharing options...
jc_braconi Posted March 15, 2013 Share #17 Posted March 15, 2013 Try this : remove the eyepiece, turn the 30x lens to be centered, with your eye close to the tube adjust the 30x lens to see crealy the black circle on the ground glass, next try to focus with the ZOOAN and Hektor head lens wide open on infinity always using the mag. lens and your eye close to the vertical tube You cannot be more accurate in focusing, after that you can adjust your eyepiece up and down to see that little circle neat again and shift the mag lens. Let us know... Link to post Share on other sites More sharing options...
carlos.paula Posted March 15, 2013 Share #18 Posted March 15, 2013 Well, friends, there is a lot of strange matters, here. I made several tests, following your recomendations. I made a shot using the whole set besides the fact that the focus was not correct. But, I made other experience. With the PLOOT mounted on camera WITHOUT the ZOOAN, I put the Hektor lens (only the front elements, of course) near the front hole of the PLOOT and I get infinity focus on the screen at a distance circa 30mm. The ZOOAN, at infinity, have a total lenght of circa 50mm. So, apparently the Hektor needs to be mounted 20 mm closer the PLOOT screw to give infinity focus. The distance is, course, much high. In other words, if the ZOOAN would have 30 mm long, instead 50mm, it will give infinity focus. Now, I am completely lost. Link to post Share on other sites More sharing options...
jc_braconi Posted March 15, 2013 Share #19 Posted March 15, 2013 Using the first ZOOAN on the left of the pict I posted above I cannot focus to infinity, very close but not enough, with the second no focusing at all at any distance, may be due to the little black ring you can note on the pict and with the third I focus infinity staying +/- in between 20 and 50 meter range on the focusing ring. I used Hektor lens heads from SM and M to be sure. Link to post Share on other sites More sharing options...
jc_braconi Posted March 15, 2013 Share #20 Posted March 15, 2013 Well, friends, there is a lot of strange matters, here. I made several tests, following your recomendations. I made a shot using the whole set besides the fact that the focus was not correct. But, I made other experience. With the PLOOT mounted on camera WITHOUT the ZOOAN, I put the Hektor lens (only the front elements, of course) near the front hole of the PLOOT and I get infinity focus on the screen at a distance circa 30mm. The ZOOAN, at infinity, have a total lenght of circa 50mm. So, apparently the Hektor needs to be mounted 20 mm closer the PLOOT screw to give infinity focus. The distance is, course, much high. In other words, if the ZOOAN would have 30 mm long, instead 50mm, it will give infinity focus. Now, I am completely lost. That is for sure !!! You have the lens head WITH the collar attached You must unscrew the head from this sleeve ! Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/77279-short-focussing-mount-pict-added/?do=findComment&comment=2272351'>More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.