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Thread: Difference between a good filter and a normal filter

  1. #1
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    Question Difference between a good filter and a normal filter

    Hi.

    Was just wondering if purchasing a branded UV filter (e.g. B+W or Hoya?) brings immense benefits as compared to a normal Tokina (or other brand) UV filter?

    Will it also increase the sharpness or AF accuracy or colors? What other benefits are there?

    Thanks for answering my queries as the branded filter cost up to 10x more than the normal filter and especially when I use this filter to protect the front lens element....

    Cheers!
    Last edited by godzilla60; 10th December 2008 at 05:54 PM.
    G

  2. #2
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    Default Re: Difference between a good filter and a normal filter

    anybody who used both a good and normal filter before?
    G

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    Default Re: Difference between a good filter and a normal filter

    If you tend to shoot a lot of into the sun kinda shots, the poorer quality filters tend to give you more flare. I used to use Tokina, but now I junk them and buy better quality ones that I can use for a long time. But seriously, it is very much of an individual's preference and tolerance for quality.
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  4. #4

    Default Re: Difference between a good filter and a normal filter

    i experienced the difference when taking night scenes.

    using a normal filter, you'll get ghosting of the light sources.

    but with a Multi-coated filter, this can be avoided.

    currently now i use hoya HMC / nikon filters.

  5. #5

    Default Re: Difference between a good filter and a normal filter

    Bad filters creates loads of flare. Bad filters are only like a glass piece; a protective piece for your lens, in case it gets scratched etc. I once dropped a lens, from a low height of about 40cm, thankfully only the filter cracked, the lens worked perfectly fine.

  6. #6
    Moderator Octarine's Avatar
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    Default Re: Difference between a good filter and a normal filter

    Quote Originally Posted by godzilla60 View Post
    Will it also increase the sharpness or AF accuracy or colors? What other benefits are there?
    It might rather DEcrease image quality and create more trouble, e.g. ghosting and flares. UV filter are supposed to block UV light and be neutral to normal light. Most UV filters also act as haze filters to improve the colours slightly, although I haven't noticed much so far.
    The protective function is highly debatable, a hood provides good protection, too. So far, cleaning the front element of my Tamron lens was always easier then cleaning a Hoya Pro filter.
    Check this forum, plenty of threads discussing the same topic several times per month.

  7. #7
    Senior Member geraldkhoo's Avatar
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    Default Re: Difference between a good filter and a normal filter

    I started out thinking... what's the difference between a good and normal filter? If it is just to protect the front element of the lens, a cheap one will do... right?

    Well... I was wrong. I was shooting a night wayang scene with a Tokina 12-24 coupled with a Tokina filter... and I ended up with flares and ghosting. I have since changed to HMC filters, which do reduce these undesirables
    Last edited by geraldkhoo; 10th December 2008 at 10:34 PM.
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    Default Re: Difference between a good filter and a normal filter

    mmm....well..so a good UV filter cuts flares and improve image quality? so, if i am going to be semi-pro, good filters are a must?
    G

  9. #9
    Senior Member dorts's Avatar
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    Default Re: Difference between a good filter and a normal filter

    Difference?

    Look through a Hoya Super-HMC and a Tokina filter. You'll see that the Hoya is almost invisible, while it's obvious that the Tokina one has a piece of glass in front. The glass really cannot be seen unless you shine light on it or look towards a light source.

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    Default Re: Difference between a good filter and a normal filter

    Quote Originally Posted by dorts View Post
    Difference?

    Look through a Hoya Super-HMC and a Tokina filter. You'll see that the Hoya is almost invisible, while it's obvious that the Tokina one has a piece of glass in front. The glass really cannot be seen unless you shine light on it or look towards a light source.
    now....that difference is easy to imagine....
    any pics of both?
    G

  11. #11
    Senior Member dorts's Avatar
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    Default Re: Difference between a good filter and a normal filter

    Quote Originally Posted by godzilla60 View Post
    now....that difference is easy to imagine....
    any pics of both?
    Pictures? Not sure if can see, but I'll post some tomorrow?

  12. #12
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    Default Re: Difference between a good filter and a normal filter

    Quote Originally Posted by dorts View Post
    Pictures? Not sure if can see, but I'll post some tomorrow?
    thanks bro....

    considering getting good filters for my lens but not sure of the benefits...seeing the difference between a good filter and normal one on the same situation will help me decide.....especially when the price difference is so great...
    G

  13. #13
    Senior Member dorts's Avatar
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    Default Re: Difference between a good filter and a normal filter

    Quote Originally Posted by godzilla60 View Post
    thanks bro....

    considering getting good filters for my lens but not sure of the benefits...seeing the difference between a good filter and normal one on the same situation will help me decide.....especially when the price difference is so great...
    Actually, it's hard to spot differences if you compare photos, unless you pixel-peep. I would suggest go with a good one. It's a one time buy anyway, unless you foresee breaking filters every few shoots.

  14. #14

    Default Re: Difference between a good filter and a normal filter

    Possibly problems of a low-quality filter include:

    1. Ghosting, flare and other common problems when introducing additional optics.
    2. Color Casts
    3. Reduction of the total amount of light entering the lens

    Perks of the high-quality filter? It tends to reduce the problems I mentioned above. Don't think using a high-quality filter will improve AF speed!

  15. #15

    Default Re: Difference between a good filter and a normal filter

    Quote Originally Posted by Blur Shadow View Post
    Possibly problems of a low-quality filter include:

    1. Ghosting, flare and other common problems when introducing additional optics.
    2. Color Casts
    3. Reduction of the total amount of light entering the lens

    Perks of the high-quality filter? It tends to reduce the problems I mentioned above. Don't think using a high-quality filter will improve AF speed!
    I concur on the above. And a higher quality filter does not make an image sharper compare to naked lens. And also using a filter on a 50mm f1.8 where the glass reside deep in the barrel, it is more likely to cause flare then going w/o filter

  16. #16
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    Default Re: Difference between a good filter and a normal filter

    Quote Originally Posted by dorts View Post
    Actually, it's hard to spot differences if you compare photos, unless you pixel-peep. I would suggest go with a good one. It's a one time buy anyway, unless you foresee breaking filters every few shoots.
    mmmmm.........if there is no difference that can be spotted, why the huge price difference? for peace of mind?
    G

  17. #17
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    Default Re: Difference between a good filter and a normal filter

    Quote Originally Posted by DeadEnd View Post
    I concur on the above. And a higher quality filter does not make an image sharper compare to naked lens. And also using a filter on a 50mm f1.8 where the glass reside deep in the barrel, it is more likely to cause flare then going w/o filter
    ah....my comparison is with a normal filter rather than a naked lens....
    G

  18. #18

    Default Re: Difference between a good filter and a normal filter

    the sharpest is without filter.

    glass was designed to work without a filter. not with it.

  19. #19
    Moderator Octarine's Avatar
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    Default Re: Difference between a good filter and a normal filter

    Quote Originally Posted by godzilla60 View Post
    mmmmm.........if there is no difference that can be spotted, why the huge price difference? for peace of mind?
    It is about the resistance against flare and ghosting due to coating. Simple coating is cheap but you'll see it immediately. More expensive coating works better but still cannot eliminate all flare effects. One side effect is that expensive coating is easier to clean.
    As night86mare mentioned: best is to shoot without any filter (or only the effect filter that is really needed). The coating of front elements is very good, a filter as permanent 'lens condom' is just not necessary. If you want to spend money for peace of mind it's ok. Just keep the limitations in mind. Alternatively get a lens hood. Protective and useful without side effects.

  20. #20

    Default Re: Difference between a good filter and a normal filter

    ...Or unscrew the filter when taking that shot.

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