Disappointing sharpness - Tamron 15-30

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dropnbassonu
dropnbassonu Regular Member • Posts: 156
Disappointing sharpness - Tamron 15-30

Got my 15-30 today, did a manual focus adjustment on both wide and tele end, both needed -4 to get sharp. Comparing against my Sigma 24-105 at 24mm it's really disappointing. Here's a very mundane kitchen shot with identical settings. Shot raw, processed in C1, no adjustments have been made. Focus was dead center on the "documents" wording on the small filing bin.  See 100% for the difference.  Am I expecting too much from this lens?

Tamron 15-30

Sigma 24-105

 dropnbassonu's gear list:dropnbassonu's gear list
Sony a77 II Sony DT 16-80mm F3.5-4.5 ZA Carl Zeiss Vario-Sonnar T* Sony 70-300mm F4.5-5.6 G SSM Sony 85mm F2.8 SAM Sony DT 16-50mm F2.8 SSM +7 more
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