raghard Posted November 6, 2013 Share Posted November 6, 2013 I bought this Anamorphic lens and for the life of me cant focus it! Does anyone know if this particular lens is usable with a DSLR if so what do I do? When you look through the lens you have to hold it a foot away from your eye for it to be in focus is this like this with all anamorphics? Sorry Im trying it for the 1st time. Quote Link to comment Share on other sites More sharing options...
Matthias Malleši� Posted November 6, 2013 Share Posted November 6, 2013 check your p.m. Quote Link to comment Share on other sites More sharing options...
dahlfors Posted November 6, 2013 Share Posted November 6, 2013 Ultra stars are anamorphic projection lenses needing double focusing. These lenses are made for projection, so they don't focus very close, usually in the range of around 1.5 to 2 meters or so. First you mount them to a taking lens (with rear part of anamorphic as close as possible to taking lens as possible) using a clamp or a rail mount. When mounting, you need to rotate and align the anamorphic so that vertical and horisontal lines are really vertical and horisontal. People often shine a light into the lens to see a flare for that alignment. It can work to align it with camera pointed at truly vertical wall too (like a wall, door or something else you know will be aligned). When focusing an object at around 5 meter or so - first adjust your taking lens to 5 meters and then the anamorphic to 5 meters. If you nail the focal distance on both lenses your image should be in focus. If the focus is wrong on one of the lenses, you won't have anything in focus. Search in the forums a bit as well and you'll find more threads about: - aligning different anamorphics - using double focusing - Isco Ultra Stars. Matthias Malleši� 1 Quote Link to comment Share on other sites More sharing options...
raghard Posted November 7, 2013 Author Share Posted November 7, 2013 i reckon the lens needs adjusting. been trying to focus now for ages and the focus on the isco seems to do nothing! however i see the thing moving back and forth. it appears to act like a telephoto too. Its very frustrating I can tell you. I will check out the suggested threads now Thank you for your reply by the way Quote Link to comment Share on other sites More sharing options...
raghard Posted November 7, 2013 Author Share Posted November 7, 2013 just did a test without a taking lens and held the isco infront of the camera and it worked! Just need to pick the correct lens as the taking lens i presume. thought my helios would have been fine for this. Quote Link to comment Share on other sites More sharing options...
Gábor Ember Posted November 8, 2013 Share Posted November 8, 2013 If it worked without the taking lens then it means that it has the original taking lens on the back of it (the projection lens). By itself an anamorphic adapter cannot produce an image. You should try to unscrew the back part of the lens, or maybe post an image of the lens first. Matthias Malleši� 1 Quote Link to comment Share on other sites More sharing options...
raghard Posted November 8, 2013 Author Share Posted November 8, 2013 http://www.ebay.co.uk/itm/271301435737?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2648 here is a link to the lens Do you know how to unscew it then? Do you need to undo the tiny screws? Sorry for being an amature. Ive also tried to unscrew where i imagine the split to be but no joy. When i see other people that have isco's on their cams it looks like the front part So yes i reckon i need to split it! Thanks for that Quote Link to comment Share on other sites More sharing options...
Gábor Ember Posted November 8, 2013 Share Posted November 8, 2013 Yeah from the image it looks like it should be unscrewed at the 4inch mark of the tape measure. The remaining part should be like this: http://transferconvert.co.uk/cinemania/iscon3.jpg , this is the anamorphic adapter part. I suggest you ask JohnBarlow Matthias Malleši� 1 Quote Link to comment Share on other sites More sharing options...
raghard Posted November 8, 2013 Author Share Posted November 8, 2013 Cheers for that! I will have a go with a vice! Cant believe It took so long to work it out! Quote Link to comment Share on other sites More sharing options...
Kyle Krupinski Posted April 6, 2014 Share Posted April 6, 2014 Hi Raghard, I am having the same trouble you where with getting the end of the isco ultra star to unscrew. What did you wind up doing to remove the unnecessary part? Quote Link to comment Share on other sites More sharing options...
ken Posted April 6, 2014 Share Posted April 6, 2014 IMO, my method is way better mounting than the "standard way". '?do=embed' frameborder='0' data-embedContent>> Quote Link to comment Share on other sites More sharing options...
ken Posted April 6, 2014 Share Posted April 6, 2014 Hi Raghard, I am having the same trouble you where with getting the end of the isco ultra star to unscrew. What did you wind up doing to remove the unnecessary part? if you mean to unscrew the very tight one, see pictures what I did. Quote Link to comment Share on other sites More sharing options...
tonydtv Posted April 6, 2014 Share Posted April 6, 2014 There is a thin glue on the threads joining the anamorphic front to the 85mm projector lens. It's pretty easy to free up, just GENTLY tap the area where the two lenses meet to break it up. Should unscrew pretty easily. Just don't tap it too hard, you could break some glass internally. If not, ken's method works well too. Quote Link to comment Share on other sites More sharing options...
tonydtv Posted April 6, 2014 Share Posted April 6, 2014 Also check out this thread for more isco info:'?do=embed' frameborder='0' data-embedContent>> Quote Link to comment Share on other sites More sharing options...
landulf Posted April 6, 2014 Share Posted April 6, 2014 Don't forget to move the front ring forward , you hear a little snap and then you can focus with that frontring... Quote Link to comment Share on other sites More sharing options...
Jacobsanmartin Posted April 7, 2014 Share Posted April 7, 2014 Hi Raghard, I am having the same trouble you where with getting the end of the isco ultra star to unscrew. What did you wind up doing to remove the unnecessary part? I won this lens on eBay for 99 bucks and when I got it I had a lot of trouble trying to separate the actual anamorphic lens from the projection back end. I ended up getting a set of oil filter wrenches like this ' alt='' class='ipsImage' > I put on on the top lens and one on the back end at different directions and it came right off hope this helps Quote Link to comment Share on other sites More sharing options...
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