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focal length

Started Nov 6, 2017 | Questions thread
Mike Maier Forum Member • Posts: 67
Re: focal length

diness wrote:

srmdnadem wrote:

Hi Mester, how can I get a specific focal length from this lens? For example, how can I get focal length=40 mm or 50 mm? please

the answer will be

focul length will be 27-88mm (35 mm equivalent). So , if I do not move the lens to enlarge the view. Is that mean the focal length will be 27 mm or not, please?

that is my enquiry

I’m sorry, I really don’t understand your question? Are you wanting to know the full frame equivalent of your lens on crop? If so, what lens and the bigger question is why? There really isn’t all that much use for that information unless you are really used to 35mm values. But in any case, take the focal length times 1.6 and you will get the ff equivalent of that same field of view

Some manufacturers made it simple for people and if you read the question carefully it says “27-88mm (35 mm equivalent)”. That is very simple 27 mm has same field of view as it would be on full frame 35mm sensor. Therefore if you want 50 mm equivalent set the zoom to 50mm, if you want 40mm set it to 40mm.

 Mike Maier's gear list:Mike Maier's gear list
Canon EOS 5DS Canon EF 70-200mm F2.8L IS II USM Canon EF 24-70mm F2.8L II USM Canon EF 16-35mm F4L IS USM
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