Thanks for the advice. I did some test shots on the roof of our apartment. I've tested at aperture f2.8 and f5.6 while varying the focusing distance between beyond infinity up to 1 meter. The photos are uploaded to Flickr. There are no extra sharpening or adjustment; only what ever was done during exporting from LR4 to Flickr. All photos are handheld.
Couple things I've noticed when looking at the apartment windows at the center of the picture:
- at f2.8, none of the pictures are sharp.
- at f5.6, the sharpest is at 3m focusing distance
- at f4.0, the sharpest seems to be right at infinity mark but still not where as sharp as f5.6
- If I want to take stars at night, f2.8 could be a problem.
Should I continue toNow updated test at f4.0?
- How to I get sharper images at f2.8? Is this possible?
- Am I doing something wrong?
I found a website that describes a solution to the focusing issue.
I would assume most of the 14mm users in this forum have seen or even used this fix. Has anyone try to fix the lens themselves? I would like to hear your feedback.
What are your thoughts if I try this fix myself. Does it look like I need it? It seems easy enough even for an amateur like myself.
I haven't tried to fix anything on mine. I have just familiarized myself with where focus is for different applications, and my keeper rate is basically 100%. My copy is sharp from wide open - you just need to be more careful with focus. Live view is the best bet with wider aperture.
Thanks again for the advice from everyone. Do you think I have a bad copy or it's just I haven't found the 'sweet spot' yet? It seems like there is very little room for error when shooting wide open, maybe just a mm turn on the focus ring is enough. I guess I need to play with it more and try smaller increments to get the right sharpness near and far.
BTW, I always enjoy looking at your photos.
To be honest, at the size that the photos are on Flickr, I thought they looked fine. If you feel like you don't have a good copy, I would exchange it. The time to do that is when the lens is new!