Thursday, August 1, 2013

What is the digital camera equivalent to a 500mm zoom?

Question by mgilmore02: What is the digital camera equivalent to a 500mm zoom?
I noticed that digital camera do not indicate zoom in mm. What is the digital camera equivalent to 500mm on a 35mm camera?
e. 12x, 10x, etc...


Best answer:

Answer by Raja S
depends which dig camera



What do you think? Answer below!

2 comments:

  1. The "normal" focal length of a standard lens is 50-55mm. So 500mm would be 10x. However, most digital cameras don't have full frame sensors and multiple 1.5 to 1.6 times. (A 14 mm film lens would be about 23mm in digital) So I guess a film 310mm lens equals about a 500mm digital.

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  2. Given what you've written, I'm assuming that you're talking about compact digital cameras and not Digitial SLR's.

    The 10X, 12x specification tells you nothing about what the actual maximum focal length is (e.g. 500mm). What it tells you is how much bigger the maximum focal length is compared to the minimum focal length. So if your camera has a zoom from 35mm - 350mm (equivalent to 35mm) then it would be a 10x zoom. But a camera that started from a wider angle and had 28 - 280mm would also be a 10x zoom.

    If the manufacturer isn't telling you what the equivalent focal length is, then you need to know the real focal length and how big the sensor is to work it out.

    If you just want a rough guess, then most compact cameras start from about 35mm. So to get to 500mm, you'd need about a 15x zoom. Some start from about 28mm, so you'd need an 18x zoom.

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