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Thread: Step down rings for filters

  1. #1

    Default Step down rings for filters

    I intend to purchase a lens that has a filter diameter of 77mm later, and I have a few lens with 55mm filter diameter. I plan to buy a CPL with 77mm in diameter and some step down rings, so that I can use the same CPL on my 55mm diameter lens too. But since there isn't a 77mm to 55mm step down ring, I have to use 5 step down rings (77mm-72mm, 72mm-67mm, 67mm-62mm, 62mm-58mm and 58mm-55mm Step-down ring). Will this impact the performance of the B+W CPL Slim? Has anyone done this before?

    Sorry for the noob question.

  2. #2
    Senior Member shierwin's Avatar
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    Default Re: Step down rings for filters

    You're looking for for STEP-UP (NOT STEP DOWN) rings to mount 77mm filter onto to your 55mm lenses. Check Mass Sales. There are sellers that sell 55>77mm step-up ring

  3. #3

    Default Re: Step down rings for filters

    Quote Originally Posted by shierwin View Post
    You're looking for for STEP-UP (NOT STEP DOWN) rings to mount 77mm filter onto to your 55mm lenses. Check Mass Sales. There are sellers that sell 55>77mm step-up ring
    Thanks, but what's the diff between STEP-UP and STEP-DOWN?

  4. #4
    Senior Member shierwin's Avatar
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    Default Re: Step down rings for filters

    STEP UP = ring on 55mm lens to 77mm filter
    STEP DOWN = ring on 77mm lens to 55mm filter

    You're looking for STEP-UP rings to mount 77mm filter to 55mm lens. Check Mass Sales

  5. #5

    Default Re: Step down rings for filters

    Quote Originally Posted by shierwin View Post
    STEP UP = ring on 55mm lens to 77mm filter
    STEP DOWN = ring on 77mm lens to 55mm filter

    You're looking for STEP-UP rings to mount 77mm filter to 55mm lens. Check Mass Sales
    I see, thanks for the info. Luckily I ask before I buy. But do you think I can use a few rings to achieve the same mounting that I need and don't impact the photos or introduce problems to my shots?

  6. #6
    Member agws1970's Avatar
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    Default Re: Step down rings for filters

    Quote Originally Posted by digi-me View Post
    I see, thanks for the info. Luckily I ask before I buy. But do you think I can use a few rings to achieve the same mounting that I need and don't impact the photos or introduce problems to my shots?
    You can, but the key is structural integrity. do you want a big mass of rings between the lens and filter? Ask yourself that.

  7. #7
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    Default Re: Step down rings for filters

    Also bear in mind that the use of step up rings would prevent the mounting of a hood.

  8. #8

    Default Re: Step down rings for filters

    Thank you all, great to have so many comments and opinions.

  9. #9

    Default Re: Step down rings for filters

    by using multiple step-up and down rings, u are increasing the chance of vignetting. your step down ring might be blocking the necessary light that is needed to create the picture of the correct size.

  10. #10

    Default Re: Step down rings for filters

    There is no need to buy so many step up rings. just get the 55mm>77mm. cheap and simple. I'm sure CS mass sale has it. i got one for my beercan and minolta lens.

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