whisperjet
Crew
Posts: 503
Joined: Mon Nov 12, 2007 6:27 pm

Canon EF 100-400 Age Issues

Wed Dec 23, 2009 1:22 pm

Hi,

my EF 100-400 wil turn 3 years in a few days and I was wondering whether it's just me or if it is really showing sings of its age. I have the feeling that my recent shots are not that sharp anymore like they used to be when the lens was new. Many pictures appear to be slightly out of focus and also look rather flat.

Has anybody else experienced something similar?

Stefan
Nobody is perfect - not even a perfect fool.
 
User avatar
Fly-K
Posts: 2991
Joined: Thu May 04, 2000 4:26 pm

RE: Canon EF 100-400 Age Issues

Wed Dec 23, 2009 1:43 pm

I've had mine recalibrated to my new camera but to be honest, I don't see much of a difference. However the lens is 7 years old and a bit worn.
I think we're just getting more used to high quality images so we tend to believe that our equipment is not on top of things anymore.
Once you have tasted flight, you will forever walk the earth with your eyes turned skyward, for there you have been...
 
JakTrax
Posts: 4635
Joined: Thu Jun 30, 2005 3:30 am

RE: Canon EF 100-400 Age Issues

Wed Dec 23, 2009 2:06 pm

I think the same on occasion with my 70-200 F4 L but a recent batch of shots taken a few days ago has changed my mind completely. I get these 'phases of thought' a few times a year and every time the lens just seems to sense it and periodically blows me away! Definitely nothing wrong. Funnily enough I always warm to the idea that my lens performs as it did when I bought it in winter - I first had it winter '06 and the light at that time of year just seems to deliver far more crisp and punchy images.

Karl
 
Samuel32
Posts: 105
Joined: Fri Jun 10, 2005 4:39 am

RE: Canon EF 100-400 Age Issues

Wed Dec 23, 2009 2:20 pm

I've had mine 3.5 years now and I sent mine to calibration. The shots are sharper now BUT Canon Switzerland made it back focus and can't correct it anymore. I think lens elements shift around after a few years of extensive use.

Sam,
 
gabik001
Posts: 238
Joined: Sat Jun 18, 2005 9:16 am

RE: Canon EF 100-400 Age Issues

Sat Dec 26, 2009 6:05 pm

I got mine about 3 years and I can't see any differences between shots taken today and 2-3 y. ago. I cleaned lens inside twice and works perfect. Infact i got pretty used body (350D with 50k shots) so I think that is a problem. Anybody elso who used my lens said it works perfect so I think it is time to get new body (40 or 50D i think).
Gabriel
Canon 50D gripped + Canon 70D + 17-40 L + 24-105 L IS + 50 f/1.8 STM + 100-400L IS USM + Minolta X300 w/ 35-70 f/3.5
 
whisperjet
Crew
Posts: 503
Joined: Mon Nov 12, 2007 6:27 pm

RE: Canon EF 100-400 Age Issues

Sat Dec 26, 2009 7:02 pm

Good points, thanks for your input. I am not fully convinced that it's just me who misinterpretes something and I will observe that closely.

Gabriel, did you clean the lens yourself? Would be interesting to know since mine has some dirt behind the first lens.

Stefan
Nobody is perfect - not even a perfect fool.
 
EMA747
Posts: 997
Joined: Sat Jun 03, 2006 6:01 am

RE: Canon EF 100-400 Age Issues

Sun Dec 27, 2009 12:15 am



Quoting Whisperjet (Reply 5):

Gabriel, did you clean the lens yourself? Would be interesting to know since mine has some dirt behind the first lens.

Please, please do NOT open the lens to clean it yourself. If you want it cleaned send it to a professional service, preferably one recommended by Canon.
If it's just a speck of dusk there really isn't any need for a clean.


Andy S
Failing doesn’t make you a failure. Giving up and refusing to try again does!
 
gabik001
Posts: 238
Joined: Sat Jun 18, 2005 9:16 am

RE: Canon EF 100-400 Age Issues

Sun Dec 27, 2009 6:37 pm

Quoting WhisperjetGabriel, did you clean the lens yourself? (Reply 5):

Yeah , I did it by myself. I got a precision electronic and mechanic skills (i'm electronician specialized in HF transceivers) so it was not a problem. Infact , nobody should clean it except authorized service , but cost of couple hundreds of $ makes me to find a way to clean it. BTW dust is not visible on the shots like the dust on sensor , but I felt non comfortable when was looking every day on the lens. Cleaning is easy , but everybody should remember how to put back all pieces together (12 screws , 3 rings and one lens) and not to loose sharpness of the lens. I also cleaned up my other lens , 17-85 IS USM but that was a piece of cake.
Regards , Gabriel

[Edited 2009-12-27 10:39:03 by gabik001]

[Edited 2009-12-27 10:39:48 by gabik001]

[Edited 2009-12-27 10:40:46 by gabik001]
Canon 50D gripped + Canon 70D + 17-40 L + 24-105 L IS + 50 f/1.8 STM + 100-400L IS USM + Minolta X300 w/ 35-70 f/3.5
 
mfz
Posts: 212
Joined: Mon Aug 30, 2004 11:54 pm

RE: Canon EF 100-400 Age Issues

Tue Dec 29, 2009 2:16 pm

I got my 100-400L over 5 years ago, and I can honestly not say that I would notice any difference imagequalitywise. Sure it look somewhat worn on the outside, but this is fair enough after 5 years of extensive use and a lot of traveling, but the only point I observe is that since maybe 6 months the zoomlock-ring tends to become loose by itself and lenscreep increases. But with twisting it firmly this issue (still?) can be resolved quite easily.

Cheers from MUC,
Mike

[Edited 2009-12-29 06:18:45 by mfz]

[Edited 2009-12-29 06:19:12 by mfz]
Extra Bavariam non est vita et si est non est ita! --- My flights: http://my.flightmemory.com/mfz
 
Dehowie
Posts: 1065
Joined: Wed Feb 18, 2004 8:41 am

RE: Canon EF 100-400 Age Issues

Wed Dec 30, 2009 5:41 am

Got my 100-400 in Dec 03...
Was always happy with it but decided a service was due after a pretty hard 6 years of photography.
Came back sharper than ever so more thann happy with a now 6 year old lens.
2EOS1DX,EF14.2.8LII,17TS,85/1.2,16-35L,24-70LII,24L,70-200F2.8LII,100-400,300/400/500/800L

Who is online

Users browsing this forum: No registered users and 13 guests