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MC-21 Sigma SA to L mount

Started Jun 6, 2021 | Questions thread
rick decker
MOD rick decker Forum Pro • Posts: 19,097
Re: MC-21 Sigma SA to L mount

Yes you will...Depending upon your preferences, you can choose DC Crop on or Dc Drop Auto On or DC Crop Off. With the FP and DC Crop On, your image is reduced dramatically in size - just under 10 mp. Using the 10-24 ratio with a 60 mp you would be reduced to 25mp. If you are willing to do your own cropping, here is a table based upon the fp (24mp) and the 8-16:

8m.........12-13mp

10mm...14-15 mp

12mm...18-19 mp

14mm...24mp

16mm...24mp

Now don't assume that these ratios are the same for other lenses. My point is that using DC Crop on or on auto, you give up a lot. But you may not want to crop so many images. If you are a windows user, FASTSTONE has a cropping function that displays the new size on the bottom of the screen and has a whole bunch of presets as far as ratio goes. And it also has a horizon-straightening option and a whole bunch of other stuff.

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