Roger Cicala Explains How to Optically Test Your Lens

Roger Cicala over at LensRentals has written two very information blog posts explaining how you can optically evaluate lenses at home. The posts should allow you to detect a "...decentered or optically maladjusted lens in 10 minutes or so."

Part three of the series (expected in the next few days) will provide several examples of "problem lenses."

Posts:

• Why You Can’t Optically Test Your Lens with Autofocus
• Setting Up an Optical Testing Station

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