Front- and Back-Focus

An overview and fix-it-yourself article

By PF Staff in Articles and Tips on Dec 4, 2011

Have you ever run in to autofocus alignment issues with one of your lenses?  Did you know that even if you experience front- or back-focus with a lens, it's not necessarily defective? 

In fact, more than 70% of the time, you can fix the problem at home without having to send anything in for repairs, or echancing any of your equipment!

We've written an article which gives an overview of why front- and back-focus occurs, and how to fix it!

We hope you find it helpful!  In the article, we also look at two lens alignement systems: the LensAlign MkII and the Spyder LensCal.

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