Sigma doc versus spyda lens cal 5d

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dylan81 Regular Member • Posts: 278
Sigma doc versus spyda lens cal 5d

I'm not sure if this is the right forum or not, though I'm looking to see if anyone here uses sigma lenses for their 5D, and what the difference is with a sigma doc versus a spider lenscal for getting the right micro adjustment.

If it's just about finding the right focus could either be used?

Thanks

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