Daniel D. Teoli Jr. Posted September 6, 2019 Share Posted September 6, 2019 With 35mm still film camera a 50mm is considered normal. Is it the same with 35mm FF 4k? A 35mm FF 4k must not be the same as 35mm film as the top and bottom of a circle fisheye gets cropped, whereas it does not crop on 35mm film. Link to comment Share on other sites More sharing options...
Premium Member Dom Jaeger Posted September 6, 2019 Premium Member Share Posted September 6, 2019 Well a 35mm stills frame is 36mm x 24mm which is 1.5:1, whereas moving images these days usually use a wider aspect ratio. Whether it's the cinema standard of 1.85:1, the HDTV 1.78:1 frame, or things like 2:1 or anamorphic 2.39:1 you're generally cropping the height with video. Whether 50mm is normal for FF video is a question of preference, I think. Certainly wouldn't be for a filmmaker like Wes Anderson for example. 2 Link to comment Share on other sites More sharing options...
Daniel D. Teoli Jr. Posted September 6, 2019 Author Share Posted September 6, 2019 Is there a lens considered as normal then? Link to comment Share on other sites More sharing options...
Premium Member David Mullen ASC Posted September 7, 2019 Premium Member Share Posted September 7, 2019 35mm still frame / 35mm full-frame (FF) / 35mm VistaVision are all more or less the same thing, around 36mm x 24mm, though lately a lot of the FF cine cameras have been playing a bit fast and loose with that standard, partly because they don’t want to make a 3:2 sensor. So some are closer to 40mm x 20mm, a bit wider but less tall. So if you consider a 50mm normal in 35mm still photography — similar in view to a 35mm in cine or APS-C — then it still holds true for most FF cameras. The K doesn’t matter, there are smart phones with tiny sensors that shoot 4K, they just cram smaller photosites into a smaller space. 1 1 Link to comment Share on other sites More sharing options...
M Joel W Posted September 7, 2019 Share Posted September 7, 2019 (edited) I usually consider a focal length equivalent to the diagonal of the sensor/film back size to be the "normal" regardless of aspect ratio. 36X24 would be: 43mm Super35: 25mm Canon APS-C: 27mm 6x6: 80mm I shoot most often with 50mm on 36X24 and 28mm or 35mm on Super35/APS-C, though, and consider those the "normal." So I guess I round up. If 50mm is "normal" for you on Super35, then the full frame equivalent would be 85mm. Edited September 7, 2019 by M Joel W 1 Link to comment Share on other sites More sharing options...
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