thick filters possible for fw8s-stxl?

Discussion in 'STX and STXL Series Cameras' started by sst, Oct 1, 2018.

  1. sst

    sst Standard User

    Joined:
    Oct 1, 2018
    Messages:
    5
    I need to install rather thick filters (6mm) onto the fs8s-stxl filter wheel (http://diffractionlimited.com/product/fw8s-stxl/).

    Do people have experience installing thick filters on that filter wheel? What are the allowed ranges of filter thicknesses?

    Thanks!
     
  2. Doug

    Doug Staff Member

    Joined:
    Sep 25, 2014
    Messages:
    9,956
    The normal filters used in these wheels are 3 mm thick.

    Looking at the design model, it appears there is only about 6.85 mm between the base of the carousel and the drive belt.

    The screws and plastic shoulder washers used to hold the filters in place would not work. If you substituted something tall enough to hold the filters it might catch on the drive belt.

    It might work if you were to RTV the filters into the carousel, so there is no added height. No need to RTV the entire diameter of the filter; a bead in three places would do the job.
     
  3. sst

    sst Standard User

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    Oct 1, 2018
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    Thanks for the information and helpful suggestions. We'll give the RTV method a try.
     

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