Laquaglia Punto Ernesto Posted November 15, 2016 Share Posted November 15, 2016 Hi everyone! I would like to share this theory with you all because I am in no position to test it out without spending a small fortune. Recently I cam across this:https://www.pdmovie.co.uk/collections/remote-air-mini/products/pdmovie-mini-02-remote-air-mini-dual-channel?variant=19159935171 The follow focus works via bluetooth. you can download it's app from the apple app store it only works with iOs devices at the moment. Fiddling with it a bit I found myself thinking: "If you could set the focus markings for the anamorphic lens on the FOCUS section of the app, set the markings of the taking lens on the IRIS section, then link all the marks together so, the problem should be solved right?" Do you think it would be possible to link two channel and synchronize them like the genius behind this?: Or hack the app so to be able to using it in that way? I am no expert of programming, but the people behind PDMovie could be really in a position to make double focusing easier, IMHO Justin Bacle 1 Quote Link to comment Share on other sites More sharing options...
Justin Bacle Posted November 16, 2016 Share Posted November 16, 2016 I was thinking about a solution like this using a couple of servomotors and an arduino. Give me a week to come with a solution on paper I'm sure it's not that difficult and way cheaper than the other solution Laquaglia Punto Ernesto 1 Quote Link to comment Share on other sites More sharing options...
Dr. Verbel' Posted November 16, 2016 Share Posted November 16, 2016 There is a way even easier. Without servomotors. My colleague from Russia solved double focus in mechanic. Only difficulty is to calculate the ana attachment moves and the lens. And nonuniversal this method, only one lens may be used. But cool and less bulky than with motors. His site http://pooli.ru/ Justin Bacle 1 Quote Link to comment Share on other sites More sharing options...
ken Posted November 16, 2016 Share Posted November 16, 2016 In this way, just have strong breathy effect, not very good for video as focusing unit. Similar to what I modified as auto focus lens for photography, that is excellent. But nowadays, most digital lenses are made as internal focus lens, which cannot be used. Quote Link to comment Share on other sites More sharing options...
Dr. Verbel' Posted November 16, 2016 Share Posted November 16, 2016 44 minutes ago, ken said: In this way, just have strong breathy effect, not very good for video as focusing unit. Similar to what I modified as auto focus lens for photography, that is excellent. But nowadays, most digital lenses are made as internal focus lens, which cannot be used. Someone like this effect . And first solution in this thread can make breathing effect too in case similar lenses as 35nap 2-3m. It's just one of the possible solutions, each will choose for themselves what is right Quote Link to comment Share on other sites More sharing options...
Laquaglia Punto Ernesto Posted November 16, 2016 Author Share Posted November 16, 2016 If I knew of a way to hack into the pdmovie app and link the two channel together that would be my option of choice. And when I say "if I knew" I mean that unless someone else comes up with a way of doing that, I would have to learn how to do that.. And I guess it would take me a few good years starting now! :D what I kinda know is that app design for iOs is an easier environment than Android. I am no hacker at all, but maybe there is a way do design an app in Android to "take over" the pdmovie motors and program them in a way I mentioned above. Those motors do not look bulky at all to me 8 hours ago, Justin Bacle said: I was thinking about a solution like this using a couple of servomotors and an arduino. Give me a week to come with a solution on paper I'm sure it's not that difficult and way cheaper than the other solution By the way, would really love to see what you are coming up! Quote Link to comment Share on other sites More sharing options...
funkyou86 Posted November 16, 2016 Share Posted November 16, 2016 Great invention but I don't see the reason of using this heavy, bulky (double)focusing mechanism over a rangefinder or other optics. Nikkor and Dr. Verbel' 2 Quote Link to comment Share on other sites More sharing options...
Laquaglia Punto Ernesto Posted November 16, 2016 Author Share Posted November 16, 2016 I believe that the rangefinder degrades the image too much for my taste , I mean I could use it if I wanted a specific effect, but my experience with it have left me with a bit bitter, oh and I LOVE the focus breathing you get with double focusing Quote Link to comment Share on other sites More sharing options...
Dr. Verbel' Posted November 16, 2016 Share Posted November 16, 2016 Disadvantage of this method - change ana ratio, when focusing. in infinity, for example, 2x, near focus less than 2x. funkyou86 1 Quote Link to comment Share on other sites More sharing options...
funkyou86 Posted November 16, 2016 Share Posted November 16, 2016 3 hours ago, Laquaglia Punto Ernesto said: I believe that the rangefinder degrades the image too much for my taste , I mean I could use it if I wanted a specific effect, but my experience with it have left me with a bit bitter, oh and I LOVE the focus breathing you get with double focusing I know, that's why I wrote "or other optics", 3 other companies are pushing their optics on the market, we have a selection now. But you can't have everything in one focusing solution (sharp glass/no lens breathing/no aspect ratio change/lightness) and get if for cheap. Dr. Verbel' 1 Quote Link to comment Share on other sites More sharing options...
Justin Bacle Posted November 17, 2016 Share Posted November 17, 2016 15 hours ago, funkyou86 said: Great invention but I don't see the reason of using this heavy, bulky (double)focusing mechanism over a rangefinder or other optics. I don't think the rangefinder fits on the NAP3-2M, being a very bulky projector anamorphic adapter. Plus the NAP3 is super cheap (got mine for 40€ on ebay), so I cannot justify putting a $500 rangefinder in front of it. (But I'm still putting money aside to buy a Rangefinder/rectilux for my Isco). The best thing with the NAP3-2M is that it is super cheap and a fun lens. I had absolutely no second-thoughts about opening mine. Which I won't do with more expensive (refined) anamorphics. Great for this kind of experiments ! Quote Link to comment Share on other sites More sharing options...
Dr. Verbel' Posted November 17, 2016 Share Posted November 17, 2016 10 minutes ago, Justin Bacle said: I don't think the rangefinder fits on the NAP3-2M, being a very bulky projector anamorphic adapter. You can make your own single focus for nap2-3m, but big good lenses for single expensive Justin Bacle and funkyou86 2 Quote Link to comment Share on other sites More sharing options...
funkyou86 Posted November 17, 2016 Share Posted November 17, 2016 47 minutes ago, Justin Bacle said: I don't think the rangefinder fits on the NAP3-2M, being a very bulky projector anamorphic adapter. Plus the NAP3 is super cheap (got mine for 40€ on ebay), so I cannot justify putting a $500 rangefinder in front of it. (But I'm still putting money aside to buy a Rangefinder/rectilux for my Isco). The best thing with the NAP3-2M is that it is super cheap and a fun lens. I had absolutely no second-thoughts about opening mine. Which I won't do with more expensive (refined) anamorphics. Great for this kind of experiments ! Okay, so how will this focusing mechanism fit your NAP3-2M, also do you think the price of this mechanism (with servo motors) will be cheaper than the RF? Quote Link to comment Share on other sites More sharing options...
Hans Punk Posted November 17, 2016 Share Posted November 17, 2016 When I looked into making a slave motor drive to sync taking and scope lens - it quickly became clear that to do properly would incur about the cost of buying an iscorama or cine anamorphic. You really need a stepper motor solution, ideally with zero backlash (to avoid mechanical drift in movement) - also a flexible interface to accommodate the offset for different taking lenses with varying focus rotation throw. In a nutshell, a vari-diopter or DIY front element mod solution is the cost effective way to convert most lenses to single focus IMO. Ian Edward Weir and Dr. Verbel' 2 Quote Link to comment Share on other sites More sharing options...
Laquaglia Punto Ernesto Posted November 17, 2016 Author Share Posted November 17, 2016 Are there any link to any DIY front element mods? Thanks Quote Link to comment Share on other sites More sharing options...
Dr. Verbel' Posted November 17, 2016 Share Posted November 17, 2016 2 hours ago, Laquaglia Punto Ernesto said: Are there any link to any DIY front element mods? Thanks I maded, but not yet create good body for single focus. and bad diopter. but working! scheme as on the gif. Quote Link to comment Share on other sites More sharing options...
Laquaglia Punto Ernesto Posted November 17, 2016 Author Share Posted November 17, 2016 Aaah I see what you mean. I Only wish I had enough money to buy lenses and experiment with it! Quote Link to comment Share on other sites More sharing options...
Dr. Verbel' Posted November 17, 2016 Share Posted November 17, 2016 please read this thread first 25 minutes ago, Laquaglia Punto Ernesto said: Aaah I see what you mean. I Only wish I had enough money to buy lenses and experiment with it! Quote Link to comment Share on other sites More sharing options...
Laquaglia Punto Ernesto Posted November 17, 2016 Author Share Posted November 17, 2016 Hey thanks a lot for the link to that forum post, I am devouring it! it is very interesting Quote Link to comment Share on other sites More sharing options...
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