Bioskop.Inc Posted June 14, 2013 Share Posted June 14, 2013 Ok Ive just picked one up for .99p I was told its not an acrobatic one :) LOL! I think i paid more for P&P when i bought mine... Link to comment Share on other sites More sharing options...
Tito Ferradans Posted June 14, 2013 Author Share Posted June 14, 2013 I've got this one & if i'm not mistaken i think it is about +1.6 - its a very good buy & cheap to boot! Bioskop, I think you mean the 62mm one, that`s +1.6 and achromatic. The 72mm are usually +1, and both are still quite cheap. I was told its not an acrobatic one :) That's it. From now on, I'm never writing achromatic again. Just acrobatic. It's muuuch more apropriate, and enhances their quality and performance! hahahahahahaha :D JohnBarlow, Zmu and dahlfors 3 Link to comment Share on other sites More sharing options...
Tito Ferradans Posted June 14, 2013 Author Share Posted June 14, 2013 I was gonna post BEFORE they ended, but traffic was hell. In case the seller relists, here's a couple links for big acrobatics. Century Optics +1.6 86mm (acrobatic) http://www.ebay.com/itm/111095103583 Century Optics +2.6 86mm (acrobatic) http://www.ebay.com/itm/111095103079 Link to comment Share on other sites More sharing options...
Tito Ferradans Posted June 16, 2013 Author Share Posted June 16, 2013 Tiffen +1 138mm http://www.ebay.com/itm/230984834889 Spiratone +0.5 55mm (FOR THREE BUCKS!) http://www.ebay.com/itm/12112765796 Link to comment Share on other sites More sharing options...
JohnBarlow Posted June 17, 2013 Share Posted June 17, 2013 Arrived in todays post! and its 1.6D according to my measurement Bioskop gets the cigar! I've got this one & if i'm not mistaken i think it is about +1.6 - its a very good buy & cheap to boot! Tito Ferradans 1 Link to comment Share on other sites More sharing options...
Tito Ferradans Posted June 17, 2013 Author Share Posted June 17, 2013 Acrobatic, or single element? Link to comment Share on other sites More sharing options...
Bioskop.Inc Posted June 17, 2013 Share Posted June 17, 2013 Arrived in todays post! and its 1.6D according to my measurement Bioskop gets the cigar! Smoking that Cigar! Acrobatic, or single element? Single & no Acrobats in sight, but i do spot a swing in the distance... JohnBarlow 1 Link to comment Share on other sites More sharing options...
JohnBarlow Posted June 17, 2013 Share Posted June 17, 2013 Nada , just an assmatic one :P Acrobatic, or single element? Link to comment Share on other sites More sharing options...
Tito Ferradans Posted June 18, 2013 Author Share Posted June 18, 2013 Kenko +0.67 112mm http://www.ebay.com/itm/271224800201 Tiffen Series 9 Kit (+1, +2, +3) http://www.ebay.com/itm/130925088935 Link to comment Share on other sites More sharing options...
Tito Ferradans Posted June 19, 2013 Author Share Posted June 19, 2013 Kenko +0.5 72mm http://www.ebay.com/itm/271225191770 Tokina +0.5 72mm http://www.ebay.com/itm/271225484515 LOMO +1 and +2 for Squarefronts http://www.ebay.com/itm/251290044978 Canon 500D +2 72mm (acrobatic) http://www.ebay.com/itm/321142954261 Link to comment Share on other sites More sharing options...
Tito Ferradans Posted June 19, 2013 Author Share Posted June 19, 2013 It's diopter paradise now! Tamron 72mm +0.5 http://www.ebay.com/itm/271225543058 Unbranded 72mm +0.5 http://www.ebay.com/itm/221242819388 Link to comment Share on other sites More sharing options...
Tito Ferradans Posted June 23, 2013 Author Share Posted June 23, 2013 Angenieux Series 9 Kit (+1 to +4) http://www.ebay.com/itm/300921405699 Link to comment Share on other sites More sharing options...
Tito Ferradans Posted July 2, 2013 Author Share Posted July 2, 2013 Tokina +0.5 72mm http://www.ebay.com/itm/271232134636 http://www.ebay.com/itm/271232131830 Tamron +0.5 72mm http://www.ebay.com/itm/271232140021 Link to comment Share on other sites More sharing options...
enny Posted July 10, 2013 Share Posted July 10, 2013 ok what about diopter for one of those big projection lenses? where front lens is like 101 mm in diameter or across any ideas how to mount a diopter on them? i was thinking or was told 82mm-72mm step down ring then mount the diopter to the ring. Link to comment Share on other sites More sharing options...
Tito Ferradans Posted July 13, 2013 Author Share Posted July 13, 2013 Enny, If you say the front measures 101mm you should get one as big as you can to cover as much glass as possible. I believe the front glass element is a bit smaller than 101, but you're in trouble! Covering the glass is essential to avoid (more) vignetting, so I'd suggest an 86mm diopter kit, one of the cheapest options: http://www.ebay.com/itm/280923300445 You just gotta find a way to attach it to the front of the lens. If you're saying that it already has an 82mm thread, then you should go with 82mm diopters. A cheap kit too. By what you said in the message, you should be fine with a +1 and +2, for closer focus. I'll update the first post with feet measurements, but for now, the math for maximum focus is: S = diopter strength (+0.5, +0.6, +1, +2, etc) MaxFm = maximum focus distânce, measured here in METERS MaxFm = 1 / (S) or, for feet measures: S = diopter strength (+0.5, +0.6, +1, +2, etc) MaxFf = maximum focus distânce, measured here in FEET MaxFf = (3.3 / S) A +2 diopter maximum focus distance is about 1.5ft, and a +1 gets to 3ft. Check the first post to get a better explanation about this math part. You'll never have any more trouble finding out which strength works best for you. :) Link to comment Share on other sites More sharing options...
Tito Ferradans Posted July 13, 2013 Author Share Posted July 13, 2013 Hey everyone, thanks to Enny, I realised that I haven't explained the math behind the numbers on the diopters. Did that just now, on the first post. Be sure to check it, and correct me if something is messed up, or confusing! :) Link to comment Share on other sites More sharing options...
enny Posted July 13, 2013 Share Posted July 13, 2013 Thanks man :) Link to comment Share on other sites More sharing options...
Tito Ferradans Posted July 14, 2013 Author Share Posted July 14, 2013 LOMO +0.5 93mm for Squarefronts http://www.ebay.com/itm/251304629176 LOMO +0.5 and +2 for Squarefronts http://www.ebay.com/itm/290945205585 they don't seem to follow a standard! Link to comment Share on other sites More sharing options...
Tito Ferradans Posted July 16, 2013 Author Share Posted July 16, 2013 Got a tip from a friend! Kodak Retina TII/60 are 60mm diopters, single element, +0.25. Pretty common on ebay, and cheap too. Take yours before they disappear! :) From the Kodak Retina Reflex Manual : The 135 mm. lenses can also focus on distances nearer than 14 ft. For this purpose a TII/60 supplementary is used for close-ups between about 13 and 7 ft Julian 1 Link to comment Share on other sites More sharing options...
tosvus Posted August 12, 2013 Share Posted August 12, 2013 Got an interesting diopter. It is a B+W 0.5, 67mm. Found it on ebay, looks brand new (from a camera store), but quite old. I cannot find any documentation of it's existence, even on the B+W website. Maybe some of you know about it, but new to me. Now I just have to get the anamorphic lens to test it out, but I am hoping it should be good, considering the brand. Tito Ferradans 1 Link to comment Share on other sites More sharing options...
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