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  1. #1
    Join Date
    Feb 2006
    Location
    Des Plaines, IL
    Posts
    9,560

    Lightbulb Minolta "WHITE" caps

    I'm not sure how many of you may have gotten a white rear lens cap with your lens, but they are a little different than the usual black ones.

    For one thing, they have a protruding blade on the inside that actually actuates the aperture blades as you tighten it down, until the aperture was set wide open.

    Here it is on the SONY 50mm f/1.4 and the SONY CZ 135mm f/1.8

    Attachment 43934

    Also, if your lens is 135mm or longer, you can actually get an image to present on the rear cap, by manual focusing to sharpness.

    The scene with the lens

    Attachment 43935

    The scene ... in the lens!
    Attachment 43936

    Just a little something extra to think about with these older Minolta "WHITE" caps.
    Last edited by DonSchap; 01-24-2009 at 09:54 PM.
    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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