Okay, this lens is good. Now, to be sure you have the right lens (when you use these settings) the version I tested was the WHITE version (well, off-white because the lens is old) but the exterior is white with black rubber areas (focus and zoom rings). So then, let me continue by saying WOW, it's a pretty good lens! I was actually not expecting much, because I had just finished testing another budget white lens from this same vintage (a 1990s 100-400 from Promaster) which was not good. As a side note, there seem to be a lot of good lenses in the 70-300 focal length range, but every vintage 100-300 and 100-400 has been REALLY bad. I've heard the Panasonic 100-400 (by Leica) is really good (not affordable enough for me to test at this time) and the footage I've seen from the Panasonic 100-300 looks good too...but for the older lenses, I only trust the 70-300 focal length now (but only from the early AF generation/80s & 90s and on, but not older). I putting NONE in the post-production sharpening settings because I don't think it needs any (which is good)!