How to Filter Large Diameter Lenses

Discussion in 'Ultra Large Format Cameras and Accessories' started by stevebeyer@mac.com, Mar 31, 2006.

  1. stevebeyer@mac.com

    stevebeyer@mac.com Member

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    I would like others input on how they use filters for extremely large lense. I am particularly interested in 105mm and 122mm. It would be easy if the other side could use a smaller filter but in this case Schneider Fine Art lenses this option is not available. Thanks for your help
     
  2. Dave Wooten

    Dave Wooten Subscriber

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    you can use gel filters in front or in back of the lens
     
  3. Robert Hall

    Robert Hall Subscriber

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    I use an Army surplus filter used for aircraft type cameras. There is a supplier on the east cost that may still have them. I have a red, orange, and yellow. Heavy enough glass that they have been dropped on rocks and only a small chip on the edge. (I don't plan on doing that as a habit).
     
  4. David A. Goldfarb

    David A. Goldfarb Moderator Staff Member Moderator

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    Gel or polyester filters. I usually use 4" Lee polyester filters or Wratten gels for lenses up to 105mm. You can get 6" gel filters for even bigger lenses.

    You can also mount a gel holder inside on the rear element, even if there are no threads. There are some gel holders that use a spring or clamp mechanism. For some lenses that are impractical to filter in front, I've epoxied a square filter holder to the back of the lensboard.
     
  5. sanderx1

    sanderx1 Member

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    Cokin X-Pro covers up to 110, possibly 120 - the filter size is 130x160 (iirc) and majority of Cokin filters are included. Tiffen makes a lot of 138mm filters and 6x6 filters, I'm sure somebody must make a holder ...
     
  6. resummerfield

    resummerfield Subscriber

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    I think a set of square (or rectangular) filters, even quality glass ones, is cheaper and easier to work with than an assortment of step rings and large circular filters.