File :-(, x, )
Anonymous
So i just found out that one of my lenses backfocuses at certain focal lengths. Is this out of the ordinary? It focuses find at the wide end and the tele end but in the middle it backfocuses. Suggestions?
>> beethy !HJGkSBB3Ao
replace through manufacturer
>> Anonymous
>>143506
2nd hand, i lost the receipt awhile ago :(

How much approx would it be to calibrate?