eris Posted April 21, 2015 Share Posted April 21, 2015 Just in case anyone was curious. I've been doing some experiments with the Bolex 16/32 1.5x and the MD to Micro 4/3 Speedbooster on the GH4.Mostly I just wanted to verify the possible angles of view and vignetting that might occur because I'm trying to approximate the rough lens selection that Tarantino uses on his productions. From research on the web Tarantino likes to use 50mm, 40mm and occasionally 28mm when shooting anamorphic (eg: on Django). Occasionally he'll also use longer lenses when appropriate. This is for super35.I did some calculations and using lenses widely available for taking lenses (and ones I happen to have on hand), I decided that given the GH4 UHD crop factor (2.4x) that if I used a 50mm, a 35mm and a 28mm that would bring me close to the effective super 35mm equivalents area of views of 58mm, 40mm and 35mm. During experiments this is what I found with the Bolex.50mm Rokkor f1.4 speed boosted becomes a 58mm f1.0 with no vignettting35mm Rokkor f1.8 speed boosted becomes a 40mm f1.3 with no vignetting28mm Rokkor f2.8 speed booster becomes a 33.5mm f2.0 with a little horizontal vignetting. Since a 1.5x de-squeeze on the Bolex yields a 2.67:1 ratio you can use a small crop and still fit within standard 2.39:1 anamorphic cinemascope.I could go down to Tarantino's 28mm anamorphic equivalent, but a couple things make that unattractive:1) 33.5mm is plenty wide for anamorphic already. Close subjects feel *very* close even at 33.5mm anamorphic perhaps because of the already widescreen view.2) You would have to use a 24mm lens to achieve an S35 28mm equivalent and I know that would create heavy vignetting that would ruin the shot.3) You can't use floating lens designs for anamorphic taking lenses because their filter rings also rotate and obviously that would make the anamorphic rotate. Not a pleasant sensation. Also all Rokkors below 28mm are floating lens designs except the 24mm Variable Field Curvature and that one usually goes for about $800.Nuff said.I'll post some footage samples when it warms up.Also really looking forward to the anamorphic and vLog updates to the GH4. I could break out my 2x Sankor 16D which has beautiful blue flares and shoot some night scenes.eris Quote Link to comment Share on other sites More sharing options...
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