Walter2222 From Belgium, joined Sep 2005, 1292 posts, RR: 29
Reply 5, posted (5 years 3 days 8 hours ago) and read 4474 times:
Quoting Draigonair (Thread starter): However, i noticed that the lens is rather soft. Can this be due to the age of the lens? (got it 2004)
I am sure that the optics itself don't degrade over age (unless you dropped your lens), but electronics (e.g. IS) could go bust after some time... As others have already said, the shots show a kind of motion blur (did you shoot it with IS on (mode1) or was IS off?). A defective IS can of course be repaired, but it is costly...
Quoting TopGun3 (Reply 4): Try using a tripod and see if the shots improve (for comparative purposes).
... and take some shots at different apertures also!
Dazbo5 From United Kingdom, joined Mar 2005, 2830 posts, RR: 2
Reply 10, posted (5 years 3 days 3 hours ago) and read 4393 times:
Where were you focusing on the shots of the roof? Are you using all points so the camera selects or just one? The side of the house looks pretty sharp so I was wondering if the camera used that as the focal point and the tiles are slightly soft / out of focus because of the shallow depth of field at the longer length? Just a suggestion. I'm having similar problems to yourself on the Sigma 50-500 since I upgraded from the 350D to the 50D; everything is very soft. Are you using the same camera body as before? It seems newer generation highter resolution cameras are producing slightly softer shots than less dense sensor cameras and showing up every minor flaw in the lens. Sigma have suggested I send the lens and camera back to them so they can calibrate the lens for my camera. I don't fancy sending nearly £2,000 in the post though!
Equipment: 2x Canon EOS 50D; Sigma 10-20 EX DC HSM, 50-500 EX APO DG, Canon 24-105 f/4 L, Speedlite 430EX
Draigonair From Netherlands, joined Oct 2000, 708 posts, RR: 6
Reply 11, posted (5 years 3 days 1 hour ago) and read 4374 times:
I use a 20D and have always done so..and yes im sure that i focused on the center part
of the photo ..Im going to test the lens tomorrow at the airport and see what it gives. I have also sent a message to canon, see what they say i should do.
How much does it usually take to have them clean/ take a look at the lens?
Cvervais From United States of America, joined Sep 2003, 610 posts, RR: 2
Reply 12, posted (5 years 2 days 19 hours ago) and read 4339 times:
I think the base rate in the US is around $130. Usually it ends up just a little higher than that if it just needs a adjustment and cleaning. Some might balk at the price but, after sending them my 24-70 it's a bargain. They really do a thorough job.
Dehowie From Australia, joined Feb 2004, 1056 posts, RR: 34
Reply 13, posted (5 years 1 day 21 hours ago) and read 4248 times:
I'd definitely be testing without the filter. Its the only ay you will see what the lens is really producing. Any filter reduces quality..
Imagine at worst a focus calibration but id be testing it more thoroughly in a more controlled way(tripod etc) b4 i pack up a lens to send off.
Whisperjet From Germany, joined Nov 2007, 561 posts, RR: 8
Reply 18, posted (4 years 12 months 3 days 14 hours ago) and read 3992 times:
AIRLINERS.NET CREW PHOTO SCREENER
I bought my 100-400 about 3 years ago and I also have the feeling that the pictures came out sharper and contrastier when it was newer. I have to admit that I haven't used the calibration service yet.
Talking about the 100-400, has anybody ever sent the 100-400 back to Canon service for problems with locking function? I can't lock it anymore which is a bit annoying. Does anybody know how much it costs to repair it (just a guess in the right direction)?