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  1. #1
    Join Date
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    Lightbulb A different lens cap

    After buying a low-profile Circular Polarizer (CP) filter, I needed a different kind of lens cap for the 67mm filter, because low-profile filters do not have any filter threads to attach the regular lens cap to.

    With the 77mm filter ring, I purchase a slip-on cap. The problem with that is that is can be pulled off pretty easily, but it works.

    Name:  OPTECH-flip-lens-cap.jpg
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    This OPTECH Flip cap offers a more usable idea, but prohibits the use of the lens hood. I find it handy for indoor shots.
    Last edited by DonSchap; 02-16-2009 at 12:05 AM.
    Don Schap - BFA, Digital Photography
    A Photographer Is Forever
    Look, I did not create the optical laws of the Universe ... I simply learned to deal with them.
    Remember: It is usually the GLASS, not the camera (except for moving to Full Frame), that gives you the most improvement in your photography.

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  2. #2
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    Oct 2008
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    Raleigh, NC, USA
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    Does the 17-50 vignette with a normal filter on it? Or just when you have a CPL and a UV filter stacked?
    Jason Hamilton
    Selective Frame

    EOS 5D - Canon EF 24-85mm f/3.5-4.5 USM, EF 35 f/2, EF 50mm f/1.8 Mk II, EF 70-210 f/3.5-4.5 USM, EF 85mm f/1.8 USM, EF 100mm f/2.8 Macro, Helios 44-2 58mm f/2 (with EOS adapter), 430EX, Canon S90
    Nikon FE - Nikkor 35mm f/2 AI'd, Nikkor 50mm f/1.8 AI, Nikkor 105mm f/2.5 AI, F to EF adapter, 2xVivitar 285, other lighting stuff
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  3. #3
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    No, only when stacked ... it takes a UWA (10-18mm capable) lens to pick up on a CP with regular thread depth on an APS-C sensor. On a FULL Frame ... the 16-35mm lens would see it, also.
    Don Schap - BFA, Digital Photography
    A Photographer Is Forever
    Look, I did not create the optical laws of the Universe ... I simply learned to deal with them.
    Remember: It is usually the GLASS, not the camera (except for moving to Full Frame), that gives you the most improvement in your photography.

    flickr & Sdi

  4. #4
    Join Date
    Jan 2008
    Location
    Ohio, USA.
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    A bit off topic and I think it's been addressed here before, I presume I should be getting a CPL for the 70-200 as I will be outside with it often is that correct? and should I get one to fit and then some jump rings to take it down for other lenses or is it just to big a filter to be practical for other uses?
    Sony A700_____________Minolta AF 50mm. F/1.7
    Minolta AF 70-210mm F/3.5-4.5 Tamron AF 17-50mm F/2.8 XR DiII LD Asp. [IF]
    Tamron SP AF 70-200mm. F/2.8 DI LD [IF] Macro
    Tamron AF 70-300mm F/4-5.6 Di LD Macro 1:2
    Tokina AF 28-70mm F/3.5-4.5
    Tokina AF AT-X 80-400mm F/4.5-5.6
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  5. #5
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    Jun 2008
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    Yup, I have a 77mm Hoya CPL and a step ring set for all my lenses.
    flickr

    Canon 7D - 5D | 550EX - 430EX II - (2) PW FlexTT5 | 24-105 f4L | 70-200 f2.8L IS | 100 f2.8L IS | 50 f1.8 II

  6. #6
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    It can save hundreds of dollars in filter expense ... but you sacrifice the use of the lens hood for the smaller diameter lenses ... that's why I suggest that you get a matching 77mm screw-on rubber lens hood using it like that.
    Don Schap - BFA, Digital Photography
    A Photographer Is Forever
    Look, I did not create the optical laws of the Universe ... I simply learned to deal with them.
    Remember: It is usually the GLASS, not the camera (except for moving to Full Frame), that gives you the most improvement in your photography.

    flickr & Sdi

  7. #7
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    Location
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    But if I have the 77mm CPL and use it on the 70-200 I can use the hard hood correct? or will it not thread with the CPL on?
    Sony A700_____________Minolta AF 50mm. F/1.7
    Minolta AF 70-210mm F/3.5-4.5 Tamron AF 17-50mm F/2.8 XR DiII LD Asp. [IF]
    Tamron SP AF 70-200mm. F/2.8 DI LD [IF] Macro
    Tamron AF 70-300mm F/4-5.6 Di LD Macro 1:2
    Tokina AF 28-70mm F/3.5-4.5
    Tokina AF AT-X 80-400mm F/4.5-5.6
    http://flickr.com/

  8. #8
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    Quote Originally Posted by seanhoxx View Post
    But if I have the 77mm CPL and use it on the 70-200 I can use the hard hood correct? or will it not thread with the CPL on?
    Correct, that is why I ... uh ... said ...

    Quote Originally Posted by DonSchap View Post
    It can save hundreds of dollars in filter expense ... but you sacrifice the use of the lens hood for the smaller diameter lenses ... that's why I suggest that you get a matching 77mm screw-on rubber lens hood using it like that.
    Don Schap - BFA, Digital Photography
    A Photographer Is Forever
    Look, I did not create the optical laws of the Universe ... I simply learned to deal with them.
    Remember: It is usually the GLASS, not the camera (except for moving to Full Frame), that gives you the most improvement in your photography.

    flickr & Sdi

  9. #9
    Join Date
    Dec 2006
    Location
    God's Country - Australia
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    10,417
    i have a thin CPL. i'll never buy one again. biggest mistake i ever made.
    D800e l V3 l AW1 l 16-35 l 35 l 50 l 85 l 105 l EM1 l 7.5 l 12-40 l 14 l 17 l 25 l 45 l 60 l 75
    flickr

  10. #10
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    The 77mm-thin works well on the SIGMA 10-20mm f/4-5.6 UWA when I have it dialed back to 10-15mm. The standard CP shows up and it is a true vignette.

    Everything has its use, somewhere ...
    Don Schap - BFA, Digital Photography
    A Photographer Is Forever
    Look, I did not create the optical laws of the Universe ... I simply learned to deal with them.
    Remember: It is usually the GLASS, not the camera (except for moving to Full Frame), that gives you the most improvement in your photography.

    flickr & Sdi

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