The Crazy Autofocuser

Author: admin

Vivitar Series 1 vs. Pentax-A 70-210mm: TNAF #1 Part 2

In Part 1 of the review That Nobody Asked For (TNAF #1), we compared the lenses’ center and corner performance. Here, we check the zooms for any gross decentered/tilted element problems, compare their mid-distance performance, and look for chromatic aberrations. Brick Wall Tests The first thing I do with a newly-acquired lens is to test it as soon as I can using the wall of a nearby elementary school (when it’s not in session, of course). This way, I can return it within the seller’s return-policy window and save myself from having to deal with the distributor or manufacturer. Time… Read More