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Thread: Are filters necessary for lenses?

  1. #21
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    Default Re: Are filters necessary for lenses?

    Quote Originally Posted by ortega View Post
    the key word is

    Are filters necessary for lenses?

    the answer is no

    after spending big money on good glass, you put a filter in front of it to degrade the quality?
    Does not compute ...
    This one filter saved my good glass once...filter totally smashed up, don't dare to imagine if it's the front element of my lens that is shattered.

    Now all my lenses got filter on, 24/7...but I make it a point to get the better ones out there.
    Last edited by Razor54; 27th April 2007 at 11:29 PM.

  2. #22
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    Default Re: Are filters necessary for lenses?

    Quote Originally Posted by Razor54 View Post
    This one filter saved my good glass once...filter totally smashed up, don't dare to imagine if it's the front element of my lens that is shattered.

    Now all my lenses got filter on, 24/7...but I make it a point to get the better ones out there.
    That's the reason why it's also gd for full-time protection of the front lens element.
    Canon EOS 5D, 24-70 f/4 L IS, 50 f/1.2 L, 70-300 f/4-5.6 L IS, 600EX-RT. Sigma 12-24 f/4.5-5.6 EX.

  3. #23
    Senior Member fatigue's Avatar
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    Default Re: Are filters necessary for lenses?

    I have cleaned quite a number of lenses. Most of those lenses without filter have stubborn stains and/or minor scratches on their front glass. Even those lenses with "deep"
    (not easily accessible) front element are not spared. Maybe we should just remove the filters when shooting a direct source of light to avoid glares.

  4. #24

    Default Re: Are filters necessary for lenses?

    any idea how much Hoya ND8 filter costs (55mm)?

  5. #25

    Default Re: Are filters necessary for lenses?

    If you shoot black and white, colour filters can accentuate certain tones which make the

  6. #26

    Default Re: Are filters necessary for lenses?

    Sorry accidentally click submit.

    If you shoot black and white, colour filters can accentuate certain tones which make the picture stand out.

  7. #27
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    Default Re: Are filters necessary for lenses?

    Quote Originally Posted by Snoweagle View Post
    No lah i just put two close up filters only. Since i'm using it just for close ups (which i seldom use) so no point getting a B+W for it.
    Hi... would like to know.... are those close up filters the type that gives a bit of Magnification to ur lense..... like 1+ or 2+ ??? Me own a Canon EF-S 60mm. Heard of filter that could give lense more "Magnification"..... is it true ?? does it works ?? Thxs

  8. #28
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    Default Re: Are filters necessary for lenses?

    Quote Originally Posted by bent View Post
    any idea how much Hoya ND8 filter costs (55mm)?
    should be about $20 from CP...

    Hi... would like to know.... are those close up filters the type that gives a bit of Magnification to ur lense..... like 1+ or 2+ ??? Me own a Canon EF-S 60mm. Heard of filter that could give lense more "Magnification"..... is it true ?? does it works ?? Thxs
    it makes your lens able to focus even nearer...

  9. #29
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    Default Re: Are filters necessary for lenses?

    Quote Originally Posted by ExplorerZ View Post

    it makes your lens able to focus even nearer...
    So u mean all it does is enable me to 'move' my lense closer to the subject.... and not that it 'makes' the subject 'bigger'......

  10. #30
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    Default Re: Are filters necessary for lenses?

    Quote Originally Posted by diver-hloc View Post
    So u mean all it does is enable me to 'move' my lense closer to the subject.... and not that it 'makes' the subject 'bigger'......
    A closeup filter will make the subject bigger by magnifying, not to allow you to focus closer. To do that (focus closer), you'll need an extension tube. If I remembered correctly, 3rd-party tubes cannot be used on EF-S lenses. You'll need a Canon extension tube for those...

  11. #31
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    Default Re: Are filters necessary for lenses?

    Quote Originally Posted by Razor54 View Post
    A closeup filter will make the subject bigger by magnifying, not to allow you to focus closer. To do that (focus closer), you'll need an extension tube. If I remembered correctly, 3rd-party tubes cannot be used on EF-S lenses. You'll need a Canon extension tube for those...
    eh a close up does let you focus closer...
    at the same time magnify a tiny bit which most of the time not noticed by some

  12. #32
    Moderator diver-hloc's Avatar
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    Default Re: Are filters necessary for lenses?

    Quote Originally Posted by Razor54 View Post
    A closeup filter will make the subject bigger by magnifying, not to allow you to focus closer. To do that (focus closer), you'll need an extension tube. If I remembered correctly, 3rd-party tubes cannot be used on EF-S lenses. You'll need a Canon extension tube for those...
    Ok.... I'm confuse now ..... So i ask another question.....

    Example :

    At the same distance from a subject - lets say 10cm away - the subject will be of size 'A'. Does by putting on close-up filter makes the subject now size 'A++'..... if focus length and distance... etc remains the same.... ???

    Thxs for any info.

  13. #33
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    Default Re: Are filters necessary for lenses?

    Quote Originally Posted by diver-hloc View Post
    Ok.... I'm confuse now ..... So i ask another question.....

    Example :

    At the same distance from a subject - lets say 10cm away - the subject will be of size 'A'. Does by putting on close-up filter makes the subject now size 'A++'..... if focus length and distance... etc remains the same.... ???

    Thxs for any info.
    imho, its both, but the magnificant is usually much bought up by focusing closer, unless you are using a very high diopter closeup filter. but having said that, a high diopter will make your lens unable to focus at the same distance as when without filter.

    here is a quote from wiki
    Diopters are simple single or two-element lenses used to assist in close-up and macro photography. They provide some number of positive optical diopters, which magnify the subject and allow objects very close to the lens to be brought into focus.
    Last edited by ExplorerZ; 1st May 2007 at 01:03 PM.

  14. #34
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    Default Re: Are filters necessary for lenses?

    Quote Originally Posted by ExplorerZ View Post
    eh a close up does let you focus closer...
    at the same time magnify a tiny bit which most of the time not noticed by some
    I see the difference now, thanks.

    But how true is it that by stacking these extra glass (closeup filters), we'll be affecting the image quality as compared to using an extension tube to reduce the minimum focusing distance of the lens?

  15. #35
    Moderator diver-hloc's Avatar
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    Default Re: Are filters necessary for lenses?

    Thxs for all the info...... Seems that the 'plus' of using close-up filter is little at best..... Mmm.... will stick with my EF-S 60mm.

    Again thxs for all the help.

  16. #36
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    Default Re: Are filters necessary for lenses?

    Quote Originally Posted by Razor54 View Post
    I see the difference now, thanks.

    But how true is it that by stacking these extra glass (closeup filters), we'll be affecting the image quality as compared to using an extension tube to reduce the minimum focusing distance of the lens?
    depends very very very much on which make is the filter from... high end one from canon/nikon/raynox are known to affect quality very slightly, almost not noticeable unless you stacked more than 2.

    but other than image quality, closeup filter doesn't reduce the light entering to your sensor like the way extension tubes does.
    Last edited by ExplorerZ; 1st May 2007 at 01:16 PM.

  17. #37
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    Default Re: Are filters necessary for lenses?

    This was taken sometime back with a Canon EF 50mm f/1.8 II with Kenko extension tubes. Image quality wise wasn't too bad, but I agree that a lot of light was lost after passing through the 'tunnel'...


  18. #38
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    Default Re: Are filters necessary for lenses?

    Quote Originally Posted by diver-hloc View Post
    Hi... would like to know.... are those close up filters the type that gives a bit of Magnification to ur lense..... like 1+ or 2+ ??? Me own a Canon EF-S 60mm. Heard of filter that could give lense more "Magnification"..... is it true ?? does it works ?? Thxs
    Yeah i'm using two pieces of +4 but do take note that if u wish to use back the lens to take faraway objects, have to remove the filters.

    Sice u're already using a macro lens, u could use an extension tube to focus even closer.
    Canon EOS 5D, 24-70 f/4 L IS, 50 f/1.2 L, 70-300 f/4-5.6 L IS, 600EX-RT. Sigma 12-24 f/4.5-5.6 EX.

  19. #39

    Default Re: Are filters necessary for lenses?

    I used a filter on my manual Nikkor 50mm 1.4. And it saved the lens when I tripped and fell. Only the metal ring of the filter was badly damaged (it had to take my entire body weight).

    There's also a difference in which kind of filters you use too... I experimented with a Nikon UV filter and a no-brand one. The no-brand one created lots of 'haze'. The Nikon filter had almost no impact on the photo.

  20. #40
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    Default Re: Are filters necessary for lenses?

    Use B+W filters.
    Canon EOS 5D, 24-70 f/4 L IS, 50 f/1.2 L, 70-300 f/4-5.6 L IS, 600EX-RT. Sigma 12-24 f/4.5-5.6 EX.

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