Originally posted by Zygonyx
DA*60-250 + TC
Originally posted by kosmoejtg
I have a Sigma 150- 500mm
Call me prejudiced against TC, even though I have 3 of them, but I've personally never seen a good result using TC with zooms.
Unless all the components of the whole system (lens and TC) are of superb optical quality and designed to work together, using zooms with TC is bound to disappoint. Exceptions may be the built-in 1.4 TC of the new Canon 200-400 f4L, or the grey 'long-neck' Pentax A 1.4XL TC mated with some specific FA* telephoto zooms.