Canon Community Canon Community
 


Reply
Highlighted
Frequent Contributor
Posts: 105
Registered: ‎07-18-2018

Will Canon "protect" lenses hurt image quality ?

Canon sells these and says they can be left on all the time.   Is this a high quality glass ?

 

Any info on how they effect image quality appreciated.

VIP
Posts: 10,933
Registered: ‎12-07-2012

Re: Will Canon "protect" lenses hurt image quality ?

I guess you are referring about protecto filters?  Yes, well some are better than others. I prefer B+W but I have used a few of the Canon brand and found them to be just fine. I will say they are mostly on my film lenses though.

The cheap junk filters are just that .... junk. Remember no filter is 100% perfect but B+W filters are close and they screw off as easily as they screw on. If you notice a problem in a certain situation remove it and replace it when done.

EOS 1DX and 1D Mk IV, even less and less other stuff.
Esteemed Contributor
Posts: 4,897
Registered: ‎06-25-2014

Re: Will Canon "protect" lenses hurt image quality ?


@ebiggs1 wrote:

I guess you are referring about protecto filters?  Yes, well some are better than others. I prefer B+W but I have used a few of the Canon brand and found them to be just fine. I will say they are mostly on my film lenses though.

The cheap junk filters are just that .... junk. Remember no filter is 100% perfect but B+W filters are close and they screw off as easily as they screw on. If you notice a problem in a certain situation remove it and replace it when done.


I guess it's just a matter of individual preference, but I provide that degree of protection by using my lens cap and hood more than most people probably do. The only filters I ever use on my digital cameras are circular polarizers.

 

But what I see people (including professionals) do far more often is use a camera without its neck strap or other comparable restraint. I think that's far more dangerous than not using a filter or lens cap.

Bob
Philadelphia, Pennsylvania USA
VIP
Posts: 10,933
Registered: ‎12-07-2012

Re: Will Canon "protect" lenses hurt image quality ?

"I provide that degree of protection by using my lens cap and hood more than most people probably do."

 

A filter is still just another tool to use. Use it correctly.  One big advantage is you don't have to clean the front lens element as often. Hoods do nothing to lessen that. It is better to clean an easily replaceable filter.  Now you might argue the cost of a high quality filter also plays in to this and I agree. A cheap lens does not benefit as much as a high dollar lens does.

 

Straps are again just a tool.  Use it when it does the job. Don't when it don't.  I never use a strap when shooting weddings or Senior photos, etc.  I do when I am out hobbying around. On my recent New York shoot I used my Black Rapid all day long.

 

Protecto filters have their place and they offer a real benefit. So do hoods, lens caps not so much and are more a pain than help.  Straps work well in certain situations, not so much in others.. In order, use what works. Simple?

EOS 1DX and 1D Mk IV, even less and less other stuff.
Honored Contributor
Posts: 7,881
Registered: ‎08-13-2015

Re: Will Canon "protect" lenses hurt image quality ?

[ Edited ]

@mangurian wrote:

Canon sells these and says they can be left on all the time.   Is this a high quality glass ?

 

Any info on how they effect image quality appreciated.


I think it is good idea to use clear, protective filters.  I have never used Canon’s filters, just Tiffen and B+W.  Some of Canon’s “L” lenses need a protective filter to actually become “fully resistant” against dust and moisture.  In some cases, they are actually recommended for many shooting scenarios.

Filters are also easier and safer to clean than the front element of an expensive lens.  I have never cleaned the front element on any of my L lenses, just the clear filters.  I put a clear filter on a lens as soon as i take it out of the box. 

 

One time I was at an outdoor food fair taking photos of the various chefs and their grills and smokers.  When I downloaded the photos later that evening, I noticed some photos lacked contrast, and sort of looked blown out.  My clear filter on my EF 24-105mm f/4L IS USM had become hazy with smoke.  A simple cleaning cured it.

 

Protective filters do offer protection that a hood cannot provide, namely when you are carrying a spare lens in a bag.  Most people remove lens hoods, or mount them in a reverse position when storing a lens.  My son once dropped his camera bag while carrying it and the baby to the car.  He broke the protective filter on his lens, but the lens was fine.

 

”Where was your lens cap?  What happened to it?”  [ crickets ]

----------------------------------------------------------------------------------------------------------------------------------------------------------

"I don't rent software. I use Photoshop CS6, ACR 9.8 and Lightroom 6.8 ."
powered by Lithium

LIKE US on Facebook FOLLOW US on Twitter WATCH US on YouTube CONNECT WITH US on Linkedin WATCH US on Vimeo FOLLOW US on Instagram SHOP CANON at the Canon Online Store
© Canon U.S.A., Inc.   |    Terms of Use   |    Privacy Statement