Guest Vadim Trofymenko Posted January 13, 2013 Share Posted January 13, 2013 Hi, I'm using 16mm camera and thought it would be nice idea to use a canon dslr (550D, 1.6 crop) to frame my shots. Since good viewfinders for framing are quite expensive now. DSLR is perfect choice as it takes various lenses. On my 16mm cine camera I have a zoom lens with following focal lengths: 10mm 15mm 20mm 25mm 30mm 40mm 50mm 60mm 70mm 80mm 100mm Can anybody tell me please equivalents of this focal lengths to canon 1.6 crop? For example, I had a look through 18mm canon lens on canon 550d with 1.6 crop and picture looks like 10mm on the 16mm cine camera. So is the difference 8mm between them, or what? Link to comment Share on other sites More sharing options...
Guest Vadim Trofymenko Posted January 13, 2013 Share Posted January 13, 2013 Sorry folks my mistake! 18mm = 29mm on 1.6 crop sensor. 10mm = 10mm on 16mm movie camera. So it's 19mm difference between them right? Link to comment Share on other sites More sharing options...
Guest Vadim Trofymenko Posted January 13, 2013 Share Posted January 13, 2013 Need somebody to check this, is it correct? 16mm camera canon 1.6 crop full frame 10 29 18 15 34 21 20 39 24 25 44 27 30 49 30 40 59 36 50 69 43 60 79 49 70 89 55 80 99 61 100 119 74 Link to comment Share on other sites More sharing options...
Alan Rencher Posted January 13, 2013 Share Posted January 13, 2013 http://www.abelcine.com/fov/ Link to comment Share on other sites More sharing options...
Guest Vadim Trofymenko Posted January 13, 2013 Share Posted January 13, 2013 My math is rusty, but I think I finally got it. Let's take 30mm lens as a example. Super 16 aperture =14mm. 30/14=2.2 2.2x30=66 (full frame 30mm) 66/1.6=41mm on ASP-C sensor! Got it suckers!)) Results: Super 16 = 30mm APS-C=41mm Link to comment Share on other sites More sharing options...
Guest Vadim Trofymenko Posted January 13, 2013 Share Posted January 13, 2013 (edited) http://www.abelcine.com/fov/ Alan, tool you've linked just compares cameras and focal lengths, but not calculates changes. Edited January 13, 2013 by Vadim Trofymenko Link to comment Share on other sites More sharing options...
Alan Rencher Posted January 13, 2013 Share Posted January 13, 2013 It tells you your field of view. That's what you're looking for, right? Link to comment Share on other sites More sharing options...
Guest Vadim Trofymenko Posted January 14, 2013 Share Posted January 14, 2013 Yes but on completely different cameras. In short, I need same view from two cameras: Super16 and APS-C Link to comment Share on other sites More sharing options...
Alan Rencher Posted January 14, 2013 Share Posted January 14, 2013 Well, according to that chart, S16mm is about half the size of APS-C. So if you are using a 10mm lens on a S16, the chart says you have a 61.7° field of view. If you compare that to APS-C, the same lens has a FOV of 98.9°. Now, to get close to that same FOV (61.7°) on the APS-C sensor, you will need to use a 20mm lens (it will actually get you a FOV of 60.6°, but who's counting.) It's all in the chart. Link to comment Share on other sites More sharing options...
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