When is 50mm NOT 50mm?

Started 3 months ago | Question thread
Dennis
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Re: When is 50mm NOT 50mm?
In reply to Radu Iordache, 3 months ago

Radu Iordache wrote:

Regardless of the mount of the lens, regardless of the presence of an adapter, you ALWAYS have to apply the crop factor to the focal length that is written on the lens to obtain the real field of view of your lens on your camera.

Change ALWAYS to NEVER and I agree

Multiplying by a crop factors tells you what lens you'd use on some other system to get a matching field of view.  That's handy when you're first getting used to a new film/sensor size, but the sooner you leave that baggage behind, the better.

- Dennis

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