I need an extra pair of eyes-AF finetune for 85mm f1.8
I recently got myself a 85mm f1.8 AF (non-D) version second hand for about $250 USD. I realised it has a focusing problem. It seems to have a back focus issue. Photos from this lens also has red/purple colour fringing everywhere, which is another indication my lens focuses at the back of my subject.
I've done the focus calibration with my D7100 at two distances: 85cm (closest focus distance) and 4m (in 1.3X crop mode), which is quite a generic distance
My personal observation:
At 85cm -4 or -5 seems to be the best setting
At Well...... I really don't know. Maybe -7 ? It seems to be unsharp across the range.
One thing really puzzled me is that the photos taken from Live view seem terrible at 4m. Is it because I've got a bad copy?
Anyway, please let me know what you guys think, if you think I need to do any adjustment on my set up, please let me know as well.
English isn't my first language, so sorry for any grammatical and spelling mistake in advance.
ps: The photos are still being uploaded to dropbox while I'm writing this page. There should be 5 photos per folder.
|Post (hide subjects)||Posted by||When|
|Aug 9, 2014|
|Aug 9, 2014|
- Canon EOS M58.8%
- Panasonic G85/G803.3%
- Panasonic FZ2500/FZ20001.9%
- Panasonic LX10/LX151.2%
- Panasonic GH5 development3.6%
- Sony a99 II15.9%
- Nikon KeyMission 170 and 801.0%
- Fujifilm GFX 50S development28.3%
- Olympus E-M1 II development18.7%
- Olympus E-PL80.1%
- Olympus 25mm F1.2 Pro1.5%
- Olympus 12-100mm F4 IS Pro1.9%
- Olympus 30mm F3.5 Macro0.1%
- Sigma 85mm F1.4 Art3.6%
- Sigma 12-24mm F4 Art2.6%
- Sigma 500mm F4 DG OS HSM Sport2.4%
- YI M12.2%
- GoPro Hero50.8%
- GoPro Karma drone2.2%