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05-15-2021, 04:36 AM   #1
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What mm do you tell at start up

So when you are using an adapter, say M42 to Q with a 50mm lens

Do you tell it at startup you're using a 50mm or 275mm or something else?

Thanks

05-15-2021, 04:51 AM - 2 Likes   #2
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a 50mm lens is always a 50mm lens - the only thing that changes is your field of view....
05-15-2021, 05:19 AM - 2 Likes   #3
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For SR put the actual focal length. The camera understand what to do.
05-15-2021, 10:09 AM   #4
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The only time you'd specify something different would be if you had a teleconverter (e.g. 1.4x) or an inter-series adapter with a lens in the middle, and those are hard to figure out unless specified by the manufacturer.

05-15-2021, 11:04 AM   #5
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The field of view is the less important part. In the end, youíll adapt to it. For me image quality is more of a concern. Luckily this isnít the case with M42... so observe and adapt your approach.
05-16-2021, 03:08 AM   #6
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But what if it is a zoom lens? Are you better off telling the camera it is a 50mm or say 200mm? Assuming the lens is 50-200, that is.
05-16-2021, 03:33 AM   #7
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QuoteOriginally posted by peggers Quote
But what if it is a zoom lens? Are you better off telling the camera it is a 50mm or say 200mm? Assuming the lens is 50-200, that is.
Technically, you should enter each focal length as you change zoom, anything else is simply a compromise, which may or may not be better than not using the feature at all.
Remember, 'Shake Reduction' is a relatively recent concept in the history of photography Ö very many very acceptable pictures were made before SR was made available to the general public. A simple reversion to "basics" and utilising an appropriate shutter speed for the prevailing conditions will often obviate the need for SR

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