Re: Official: Tamron 35-150mm F/2-2.8 Di III VXD (Model A058)
photosbyjaron wrote:
So I may be guilty of over analyzing this lens and getting too into the weeds on pixel peeping for my own good, but I'd be very curious hearing from other owners of this lens whether they are seeing the same dramatic increase in sharpness at 150mm going from f/2.8 up to f/4.
I didn't initially pay attention to the lens performance wide open at 150 because I was comparing it to the 100-400GM and starting at f/4.5, where the Tamron compares quite favorably. However, after seeing Dustin Abbott's test shot comparing the the T35-150 and T70-180 at 150mm at f/2.8, his copy appears to be substantially sharper than mine when wide open at 150mm.
I'd say many of the images taken wide open at f/2.8 at 150mm can seem kind of mushy with almost a halo effect around details, but then it bounds into an entirely different category of sharpness at f/4. Wondering if others are seeing the same thing or if I need to consider playing the lens lottery again. Below are some crops showing what I'm talking about.
Sadly, i think your copy of the lens may be a dud.
I'm like pixel peeping (300%) hard at my own test and at 150 mm there is no difference at all in sharpness in the center and broader center at F2.8 vs F4. You can see marginal uptake in detail and contrast in the corners - however it's small. Nothing like this hmm haze on your picture at F2.8.
Nov 05, 2021 at 05:57 PM
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