when to return a lens for new copy?
I've been trying out my new 15-85mm lens for the last month or so, and I'm not as impressed with the image quality as I thought I would be. I guess I was expecting a significant improvement over the 18-135mm I've been using, but the 15-85mm seems just barely sharper (when viewing 100% crops). The zoom also seems to stick more than it should when it's pointed up (zooming in) or pointed down (zooming out) - but maybe I'm just being picky now and looking for reasons to send it back for another copy.
How do I know if my copy of this lens is a "less desirable" one? What specific lens tests would you do to tell if you have a "good enough" copy of a lens? Under what circumstances do you send a lens back hoping for a better copy? Your thoughts or recommendations would be much appreciated.
- Fujifilm X-T223.6%
- Nikon D50025.4%
- Nikon AF-S 105mm F1.4E8.2%
- Olympus M.Zuiko 12-100mm F47.5%
- Panasonic Lumix DMC-G857.2%
- Sigma 85mm F1.4 Art6.7%
- Sigma 50-100mm F1.8 Art5.1%
- Sony a63006.4%
- Sony Cyber-shot RX10 III3.7%
- Sony Cyber-shot RX100 V6.3%
|Kingfisher by cjf2|
from An A to Z of Subjects- Week 11, K
|Bull Rider Being Launched by RBFresno|
from FX bodies and very high ISO