I post too Much on Here!!
- Mar 25, 2011
Thats the biggest issue with buying used. Many buyers do not know how to properly test a lens for various issues. If its grossly bad, we can all spot it, but if its just mediocre, many blame it on learning to use the lens. Mirrorless bodies tend to eliminate missed focus issues but there are still plenty of others. Many lenses are knocked out of alignment during shipping due to inadequate packing.In addition, for lenses there is the problem of quality because of copy variation. I thoroughly test each lens I buy new or used, and sometimes the centering or optical quality is unacceptable. If I buy new on-line or used from MPB or WEX, I know I can send them back, and occasionally I have done.