lens protection filter?

Discussion in 'Digital Cameras' started by joe.harman, Nov 3, 2003.

  1. joe.harman

    joe.harman Guest

    What's the best make and type of filter just to protect my camera SLR lens?
    Thanks
     
    joe.harman, Nov 3, 2003
    #1
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  2. joe.harman

    joe.harman Guest

    Thanks Hans and Joseph for your prompt and helpful replies...you have given
    me something to think about.
     
    joe.harman, Nov 3, 2003
    #2
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  3. joe.harman

    George Guest

    I agree with Bob. Don't just think about "scratching" the front lens
    element...more common damage is cleaning off the coating by cleaning the
    front element too often. (THEN see what your image looks like and how many
    reflections you get.) I'd rather destroy a filter every 4 years from too
    much cleaning than a lens. And THIS problem isn't helped (substantially) by
    a lens hood.
     
    George, Nov 3, 2003
    #3
  4. joe.harman

    George Guest

    Assuming that the problem is something other than just dust (that can be
    blown away), what constitutes "reasonable cleaning"? All the
    recommendations I've ever seen involve absolutely NO finger pressure
    whatsoever (no matter how light)...this would preclude using microfiber
    cleaning cloths entirely (as near as I can see). The traditional way was to
    fold a lens tissue into thirds, tear it across (making sort of a "brush"),
    put a drop of lens fluid on it, and starting at the center of the lens using
    circular motions work your way outward...the biggest problem I ever saw with
    this technique was that it left streaks on the lens. So, update me as I
    seldom ever have to clean any lens, is this totally outdated? And if so,
    why does the coating on so many used lenses look so bad? When did lens
    coatings get more rugged?

    TIA
     
    George, Nov 4, 2003
    #4
  5. joe.harman

    George Guest

    Some of it depends on the photography you do. If you noticed, in the
    posting that you responded to, I wasn't concerned about dust as a problem
    both for the reasons you cited and because you can simply blow it off
    without ever touching the lens at all. I was thinking more of water spray
    (salt water mist near the ocean, fresh water around waterfalls, boating,
    etc) or morning mist as it leave obnoxious spots that are a problem and are
    visible and many times the size of a spec of dust. Look at used lenses
    sometime...a remarkably high percentage of them have lens coating damage
    that is visible to the naked eye. Now, I never actually noted the vintage
    of all the lenses I've seen with that type of damage so I don't know if (as
    one person posted) coatings are now more rugged, but the problem is so
    widespread that I'd actually have to check it out to be convinced that this
    is now true. As long as you're buying a decent filter (B&W, Heliopan, Hoya
    SMC, Nikon, Canon, etc), I think it is very cheap insurance for a lens of
    any significant value and degrades the photo less than coating damage does.
    Most (virtually all) of my lenses have never been cleaned so they have
    virtually all of their factory coating as they did when they left the
    factory.

    BTW--Take a filter, put a fingerprint on it, clean it off and decide if you
    ever want to do that to your lens.
     
    George, Nov 5, 2003
    #5
  6. joe.harman

    George Guest

    Hans,

    Thanks for your thoughts on this...I'll digest this and possibly run an
    experiment. I don't do much night photography and when I do, I've been
    using star filters.

    George
     
    George, Nov 6, 2003
    #6
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