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Thread: Centre filters for UWA lens - rear element instead of front

  1. #31
    Corran's Avatar
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    Apr 2011
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    North GA Mountains
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    7,764

    Re: Centre filters for UWA lens - rear element instead of front

    Alan, you are spinning yourself dizzy asking so many questions and not properly reading the responses and/or getting too many responses from too many people who are talking about wildly different things.

    You do not have to focus with a filter in place if used on the FRONT of the lens.

    For any filter BEHIND the lens you must focus with it in place.


    I seriously recommend less questions and more shooting. You seem to ask the same questions over and over and over and are just confusing yourself. And, most any of these question can be answered with a simple test with your own equipment. Have you noticed your images with filters on the front of the lens noticeably out of focus? There's your answer.
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    All comments and thoughtful critique welcome

  2. #32
    Drew Wiley
    Join Date
    Sep 2008
    Location
    SF Bay area, CA
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    14,581

    Re: Centre filters for UWA lens - rear element instead of front

    Alan - don't worry about it. You are using good modern lenses and high-quality filters apparently for both your medium format and large format applications. Just focus as needed and then put the filter on the front of the lens afterwards if it's too dim focussing with one in place. Don't put them on the rear element.

  3. #33
    Alan Klein's Avatar
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    Jun 2015
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    New Jersey was NYC
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    829

    Re: Centre filters for UWA lens - rear element instead of front

    Must be age.

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