Is Nikon’s 35mm f/1.8G DX the closest “normal” lens to 50mm equivalent on a D5100?
Asked 8/16/2012
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I use a Nikon D5100 (DX/APS-C, 1.5x crop) and want a lens that gives a field of view similar to a standard 50mm lens on full frame. Is the AF-S DX NIKKOR 35mm f/1.8G the closest practical option, or would I need a different focal length to match 50mm more exactly?
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
14y ago
2 Answers
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If you mean: Is 35mm on my DX camera the same as 50mm on Full Frame? Than it almost is. I think that also nikon presents it as prime lens for DX cameras which should be equivalent to 50mm on FX.
But if you want to get 50mm on DX, than you have to buy 50 mm lens :) It would be like 75 mm on FX.
BTW: I have this lens (35mm f1.8) and it's great choice for the price :)
Originally by user9961. Source · Licensed CC BY-SA 4.0
user9961
14y ago
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Generated from our catalog & community — verify before relying on it.
Yes. On a Nikon D5100’s 1.5x DX sensor, a 35mm lens gives a field of view roughly equivalent to 52.5mm on full frame (35 × 1.5 = 52.5), so it’s very close to the classic “50mm normal” view.
If you mounted an actual 50mm lens on the D5100, it would behave more like a 75mm-equivalent field of view, which is noticeably tighter.
So if your goal is a full-frame-style 50mm look in terms of framing/angle of view, the 35mm f/1.8 DX is the right choice and is generally considered the DX equivalent of a normal 50mm lens.
If you wanted to match 50mm equivalent more precisely, a focal length around 33mm would be mathematically closer, but in practice 35mm is close enough that the difference is minor.
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