davejwatts
Posts: 41
Joined: Mon Dec 12, 2005 9:11 pm

Canon 100-400mm Is Lens Filter Help

Wed Jul 04, 2007 8:18 pm

Just bought a Canon 100-400mm IS lens, and was wondering what sort of filter would be best to protect the end of the lens? As in the past I bought a cheapish lens filter which made shots not as sharp as photos taken without the filter. Any help would be greatly appreciated
 
mrk25
Posts: 223
Joined: Fri May 27, 2005 3:31 am

RE: Canon 100-400mm Is Lens Filter Help

Wed Jul 04, 2007 8:43 pm

Forget the filter and spend the money on insurance instead. I wasted £50 or thereabouts on filter. There has been many a discussion on this subject and most would go with no filter.
 
timdegroot
Posts: 3258
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RE: Canon 100-400mm Is Lens Filter Help

Wed Jul 04, 2007 9:00 pm

Just go with a B+W, expensive but the very best.

Tim
Alderman Exit
 
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jid
Posts: 889
Joined: Wed Dec 01, 2004 7:37 pm

RE: Canon 100-400mm Is Lens Filter Help

Wed Jul 04, 2007 9:00 pm

Yep no filter .. but always use your lens hood.
G7EPN is back after 15 years! Operating all Bands 80mtrs -> 70cms QRZ DX
 
fergulmcc
Posts: 1877
Joined: Thu Oct 14, 2004 8:36 pm

RE: Canon 100-400mm Is Lens Filter Help

Wed Jul 04, 2007 9:30 pm

Quoting Mrk25 (Reply 1):
Forget the filter and spend the money on insurance instead. I wasted £50 or thereabouts on filter. There has been many a discussion on this subject and most would go with no filter.

I used to use them a few years ago but not anymore, though they do make very good, but expensive coasters Big grin If you really must have one then either B&W, never used them so can't comment on the quality, or the Sigma ones and they are OK. The only one I use now is the Sigma EX Circular Polarizer.

Insurance is vital. It amazies me that some photographers can lug around such high value equipment and not one bit of it is insured against theft or accidental damage.

Take care

Fergul  sun 
Zambian Airways, Where the Eagles fly free!!
 
timdegroot
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RE: Canon 100-400mm Is Lens Filter Help

Wed Jul 04, 2007 9:46 pm

I can't really comment on quality difference but all my shots on a.net are taken with filters on the lenses, no problems with sharpness or anything.

Tim
Alderman Exit
 
opso1
Posts: 430
Joined: Fri Jun 17, 2005 8:34 am

RE: Canon 100-400mm Is Lens Filter Help

Wed Jul 04, 2007 10:16 pm

I use a skylight filter on mine- what are the problems that the rest of you have found?

OPSO1
 
fergulmcc
Posts: 1877
Joined: Thu Oct 14, 2004 8:36 pm

RE: Canon 100-400mm Is Lens Filter Help

Wed Jul 04, 2007 11:57 pm

Quoting Opso1 (Reply 6):
what are the problems that the rest of you have found

Better quality photos! But that is just my opinion!

Fergul  sun 
Zambian Airways, Where the Eagles fly free!!
 
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carlos
Crew
Posts: 231
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RE: Canon 100-400mm Is Lens Filter Help

Thu Jul 05, 2007 12:08 am

I use a HOYA UV (0) Filter and I don't have any problems with it. I'm sure, you'll not see any differences in sharpness with or without the filter.

Greetings
Klaus
 
sulman
Posts: 1963
Joined: Wed Mar 03, 2004 5:09 am

RE: Canon 100-400mm Is Lens Filter Help

Thu Jul 05, 2007 12:15 am

Quoting TimdeGroot (Reply 5):
I can't really comment on quality difference but all my shots on a.net are taken with filters on the lenses, no problems with sharpness or anything.

I wouldn't say images with a filter are 'soft', but when using a 70-200 F4 with a 30 Euro Hoya filter, I did notice a difference at the long end, especially with an extender. Pushing the limits of the optics (as an extender does) removing what is basically another layer of glass from the the front did help the quality on the long shots versus those with the filter attached.

Next Time I'm out I'll take some comparison shots and hopefully you can see what I mean.

James

[Edited 2007-07-04 17:15:45]
It takes a big man to admit they are wrong, and I am not a big man.
 
timdegroot
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RE: Canon 100-400mm Is Lens Filter Help

Thu Jul 05, 2007 12:21 am

I don't have a comparison but this was shot with a 100-400 +1.4x and a 70 euro B+W filter. Stretching optics to the max I think it came out very well and probably would not have looked better without a filter. Not trying to start an endless debate here, just saying that if there's a quality difference at all it's probably too small to really affect image quality.


View Large View Medium
Click here for bigger photo!

Photo © Tim de Groot - AirTeamImages



Tim

[Edited 2007-07-04 17:22:01]
Alderman Exit
 
JeffM
Posts: 7569
Joined: Sat May 07, 2005 3:32 am

RE: Canon 100-400mm Is Lens Filter Help

Thu Jul 05, 2007 2:48 am

Don't waste your money on a filter, use your lens hood.
 
aero145
Posts: 2867
Joined: Tue Jan 04, 2005 4:59 am

RE: Canon 100-400mm Is Lens Filter Help

Thu Jul 05, 2007 10:47 am

Quoting TimdeGroot (Reply 10):

Most Dutch spotters using filters? At least all of the ones I've met are using them and have no problems with image quality.  Silly

I use the B+W MRC 010 and haven't seen a tiny bit of a quality degradation.

Jeff - sometimes I just cannot be lugging the hoods around so IMO I need a protection for my front element, which the best filters should be able to do without noticeable quality degradation.


As always said, it's a matter of opinion, but my advice is: If you want/need a protective filter, get the B+W MRC 010.
 
javibi
Posts: 1295
Joined: Sat Oct 02, 2004 5:55 pm

RE: Canon 100-400mm Is Lens Filter Help

Thu Jul 05, 2007 7:29 pm

Quoting Fergulmcc (Reply 4):
Insurance is vital. It amazes me that some photographers can lug around such high value equipment and not one bit of it is insured against theft or accidental damage.

Unfortunately AFAIK nobody will insure photographic equipment here in Spain  Sad

I have filters (B+W or Hoya) in all my lenses; once I dropped my 100-400 inside a bag with the filter on and no hood; the filter shattered as it took the impact but the lens was not damaged. Anyway when I have the hood on I sometimes take the filter off the lens, though I haven't noticed that much a difference in image quality.

Insurance probably is the best way to go, but if you can't/don't insure your equipment I think it is a good idea to use good quality filters, even if you sometimes do not use them  Smile

j
 
fergulmcc
Posts: 1877
Joined: Thu Oct 14, 2004 8:36 pm

RE: Canon 100-400mm Is Lens Filter Help

Thu Jul 05, 2007 9:08 pm

Quoting Javibi (Reply 13):
Unfortunately AFAIK nobody will insure photographic equipment here in Spain

I'm sorry to hear that Javibi. I have my equipment under 'All risks' which is under my house insurance. It covers my equipment for up to 6 months outside the house against the usual Theft and Accidental Damage.

Take care

Fergul  sun 

PS Any sunshine over at your place that you can spare for us here in IRL, I think we have had enough rain to last us the reat of the year,  banghead 
Zambian Airways, Where the Eagles fly free!!
 
NIKV69
Posts: 10890
Joined: Wed Jan 28, 2004 4:27 am

RE: Canon 100-400mm Is Lens Filter Help

Thu Jul 05, 2007 9:25 pm

Quoting Mrk25 (Reply 1):
Forget the filter and spend the money on insurance instead. I wasted £50 or thereabouts on filter. There has been many a discussion on this subject and most would go with no filter.



Quoting Jid (Reply 3):
Yep no filter .. but always use your lens hood.

I used to use Hoya filters. Now I just use them for protection when the lens is not in use.
Hey that guy with the private jet can bail us out! Why? HE CAN AFFORD IT!
 
JeffM
Posts: 7569
Joined: Sat May 07, 2005 3:32 am

RE: Canon 100-400mm Is Lens Filter Help

Thu Jul 05, 2007 10:15 pm

Quoting Aero145 (Reply 12):
sometimes I just cannot be lugging the hoods around...

?? you do know they mount on inverted on the lens right????
 
aero145
Posts: 2867
Joined: Tue Jan 04, 2005 4:59 am

RE: Canon 100-400mm Is Lens Filter Help

Thu Jul 05, 2007 11:40 pm

Quoting JeffM (Reply 16):
?? you do know they mount on inverted on the lens right????

Yes, always knew since I started using lens hoods!
The hoods take quite some space (inverted and not inverted on the lens), and it takes some time to make them "ready for use" (let's say fast switching between the 17-40L and the 100-400L).

So, I choose tiny degradation over hood mess.

I use the hoods when I can use them, and I act like there's no filter on. It works, not noticable on the pictures.
 
DM
Posts: 323
Joined: Thu Aug 31, 2006 10:27 am

RE: Canon 100-400mm Is Lens Filter Help

Thu Jul 05, 2007 11:47 pm

I usually have my hoods already attached to my lenses, so all i do is pull out the lense, attach to camera, and shoot. No need to screw with filters and screwing on hoods...

DM
 
gabep
Posts: 48
Joined: Fri Oct 10, 2003 6:07 am

RE: Canon 100-400mm Is Lens Filter Help

Fri Jul 06, 2007 6:01 am

The 100-400 L IS USM is my primary weapon of choice and I us a B+W UV filter and/or a Optical Flat. I have never had any image problems with it as a result, and I continue to ensure the front element is dust and scratch free by using them.

Gabe
 
JeffM
Posts: 7569
Joined: Sat May 07, 2005 3:32 am

RE: Canon 100-400mm Is Lens Filter Help

Fri Jul 06, 2007 10:23 am

Quoting Aero145 (Reply 17):
The hoods take quite some space (inverted and not inverted on the lens), and it takes some time to make them "ready for use" (let's say fast switching between the 17-40L and the 100-400L).

???? some time??? it doesn't take any longer then any other lens. I usually know in advance I want to switch, so I don't consider switching lenses an issue. A second body helps too.
 
aero145
Posts: 2867
Joined: Tue Jan 04, 2005 4:59 am

RE: Canon 100-400mm Is Lens Filter Help

Fri Jul 06, 2007 8:51 pm

Quoting JeffM (Reply 20):
A second body helps too.

Money helps there too, which I'm planning to spend for vehicle things in the coming months.  Smile
 
ChrisH
Posts: 1120
Joined: Mon Jul 26, 2004 4:25 am

RE: Canon 100-400mm Is Lens Filter Help

Fri Jul 06, 2007 8:58 pm

Quoting Aero145 (Reply 17):
So, I choose tiny degradation over hood mess.

You're choosing alot more degradation without a hood. Theyre not mainly for protection but to reduce stray light entering the lens from the side... using the hoods increase contrast and overall image quality. To summarize: Hoods > Filters
what seems to be the officer, problem?
 
aero145
Posts: 2867
Joined: Tue Jan 04, 2005 4:59 am

RE: Canon 100-400mm Is Lens Filter Help

Sat Jul 07, 2007 2:27 am

Quoting ChrisH (Reply 22):
You're choosing alot more degradation without a hood. Theyre not mainly for protection but to reduce stray light entering the lens from the side... using the hoods increase contrast and overall image quality. To summarize: Hoods > Filters

I'm not going to start an arguement - I know that it's been tested that hoods do this, but for me it doesn't change - I cannot see if my photo was taken with a hood or without. But as said, I try to use the hoods when I can, but when I cannot, I want to have protection.

Just to make it easier to understand.
 
ChrisH
Posts: 1120
Joined: Mon Jul 26, 2004 4:25 am

RE: Canon 100-400mm Is Lens Filter Help

Sat Jul 07, 2007 8:54 am

Quoting Aero145 (Reply 23):
Just to make it easier to understand.

If you can't see it, it's because you dont know what to look for. It does make a difference. That's why they come with even the cheapest of lenses.
what seems to be the officer, problem?

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