Photoskeptic Posted April 18, 2013 Share #1 Posted April 18, 2013 Advertisement (gone after registration) A friend had this lens converted to Nikon F mount by a man in Spain. The long slide makes the lens difficult to focus and it seems to hang up a lot. For those who have used this lens in the past and today, may I ask what you have done to allow the slide to move more freely? 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! 1 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/202911-about-560-f68/?do=findComment&comment=2302173'>More sharing options...
Advertisement Posted April 18, 2013 Posted April 18, 2013 Hi Photoskeptic, Take a look here ? about 560 f6.8. I'm sure you'll find what you were looking for!
luigi bertolotti Posted April 18, 2013 Share #2 Posted April 18, 2013 My one is exactly the opposite... even without pushing the button, it can still be moved (not easily) and is very soft to focus when button is pressed; frankly, I think that the "pushbutton-trombone" wasn't so smart a system... .... probably it needs some maintenance, time to time, and I haven't idea how and who can do it... I prefer the focusing system of the Televits (400/560 5,6) with its rotary knob on the pistol grip. 1 Link to post Share on other sites More sharing options...
nikau Posted April 18, 2013 Share #3 Posted April 18, 2013 Agree with Luigi (above). My 400mm "trombone" became sticky after about 20 years (!) but after a service it works beautifully and is a pleasure to use. Link to post Share on other sites More sharing options...
Photoskeptic Posted April 19, 2013 Author Share #4 Posted April 19, 2013 I wonder what they did? I'm thinking of taking it apart and applying some moly grease and probably some silicone spray. That tiny little wheel is just too small to handle the job in my opinion. Link to post Share on other sites More sharing options...
k-hawinkler Posted April 19, 2013 Share #5 Posted April 19, 2013 I wonder whether one could somehow work a Televit into that lens? Link to post Share on other sites More sharing options...
wildlightphoto Posted April 19, 2013 Share #6 Posted April 19, 2013 Some lubrication will not hurt, but I'd avoid the silicone-based varieties because they can mess up lens coatings if they wander. When focussing the lens, use the index finger of your left hand to support the front part of the lens and use the third & fourth fingers to pull downward (that's what the knurled surface is for). My 560/6.8 is fitted to the Novoflex PIGRIFF-C focussing grip, which is considerably heavier and much easier to focus especially when holding the lens in an awkward position. Link to post Share on other sites More sharing options...
luigi bertolotti Posted April 19, 2013 Share #7 Posted April 19, 2013 Advertisement (gone after registration) I wonder whether one could somehow work a Televit into that lens? This could be a fine exercise ... (to be made for fun by a well-equipped lover of in-house machining--- in economical terms I think it has no much sense... ) Let me think about.... - Televit is a 3 parts system - focusing on the first , diaphragm on the second, then lens unit (the first two parts are identical for 400 and 560) - Telyt 6,8 is a 2 parts system - the first a simple "tube" (with filter slot) - the second lens unit/diaphragm/focusing - The first part of the Televit is by far SHORTER than the first one of the 6,8s - So one could design and build a proper adapter tube to couple the first part of the Televit to the 2nd part of the 6,8... keeping TWO focusing mechanism... an oddity but can even have a sense (with correct computation of the tube's length, one can enjoy a very wide range of focusing) A possible alternative : if I remember well, the 2nd parts of the Telyts 6,8 are indeed further dismountable in two "sub-parts" (I'm almost sure for the 560... not so sure about the 400)... I seem there is a thread (normally not to be unscrewed) that dismounts the front assembly with glass elements... one could use this part only and adapt it to Televit first 2 elements. 1 Link to post Share on other sites More sharing options...
sfage Posted April 21, 2013 Share #8 Posted April 21, 2013 (edited) I like my 400. But, do not confuse this monster with a "rock star bash-off" lens. It's not like a big auto focus Canon you can scream off dozens of shots in rapid succession. It (just) won't let you do that. ****BUT**** If you learn to speak its "language", it is absolutely fabulous. 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! . Edited April 21, 2013 by sfage 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/202911-about-560-f68/?do=findComment&comment=2304070'>More sharing options...
George Furst Posted April 21, 2013 Share #9 Posted April 21, 2013 (edited) My Telyt f6.8/560mm that I purcased about two years ago out of Mexico had the same problem with being sticky and also had a slight wobble when extended for close focusing. What I did was take off the hand grip with the rubber covering, there are screws at the end of it, and tightened them and also a few other screws that came into view. After this operation it was like a new trombone mount, very smooth. Maybe you have tried this but if you haven't please do. Lubrication is not easy with this lens as the rollers are hard to acess. The other thing you can do is take a look at the surface that the rollers pass over. With time they may become rough and make the slide jerkey or sticky. I had one that was rough and I used some black electrical tape over the surface where the roller passes over and that solved the problem. I know it sounds a little "Mickey Mouse" but it beats taking the whole barrel apart and having it machined and inserting a new surface for the rollers to pass over. I did this "tape" repair about a year ago and it still has solved the problem. I agree with others that it is a wonderful lens and in the past I have used it to take pictures at the Boston Marathon as I lived near the beginning of the race in Hopkington. I sure would have been in trouble now as it does scare people. Edited April 21, 2013 by George Furst Grammar correction Link to post Share on other sites More sharing options...
wildlightphoto Posted April 21, 2013 Share #10 Posted April 21, 2013 If you learn to speak its "language", it is absolutely fabulous. All sizes | Leaf_branch17 | Flickr - Photo Sharing! All sizes | Leaf_branch16 | Flickr - Photo Sharing! Agree completely. With Leitz mount: photographs made with the Leitz 560mm f/6.8 Telyt-R with Novoflex mount: photographs made with the Leitz 560mm f/6.8 Telyt-R This lens is one of the greatest bargains among Leica-R lenses. 1 Link to post Share on other sites More sharing options...
telewatt Posted April 22, 2013 Share #11 Posted April 22, 2013 My Telyt 6,8 / 560mm in Visoflex version .... The focusing unit I cleaned and greased ... now it runs very well. 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! I have some photos here ... http://www.l-camera-forum.com/leica-forum/tier-natur/280251-mit-der-m9-im-schlosspark.html regards, Jan Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! I have some photos here ... http://www.l-camera-forum.com/leica-forum/tier-natur/280251-mit-der-m9-im-schlosspark.html regards, Jan ' data-webShareUrl='https://www.l-camera-forum.com/topic/202911-about-560-f68/?do=findComment&comment=2304553'>More sharing options...
sfage Posted April 22, 2013 Share #12 Posted April 22, 2013 with the 5d2 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/202911-about-560-f68/?do=findComment&comment=2304756'>More sharing options...
telewatt Posted April 22, 2013 Share #13 Posted April 22, 2013 I wonder what they did? I'm thinking of taking it apart and applying some moly grease and probably some silicone spray. That tiny little wheel is just too small to handle the job in my opinion. You have to unscrew the plate with the push button. But you must be careful that the spring is not lost!... Unscrew the four screws on the tube after the diaphragm and pull out the inner unity. The inner tube to focus runs on three chrome rods. Clean the chrome rods and re-grease, clean the grooves in the barrel. Then build everything back together, done! regards, Jan Link to post Share on other sites More sharing options...
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