User Tag List

Thanks useful information Thanks useful information:  2
Results 1 to 5 of 5

Thread: Cleaning Hitech filters

  1. #1
    Member ceiicilb's Avatar
    Join Date
    08 Jan 2016
    Location
    Perth
    Posts
    5
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Cleaning Hitech filters

    Hi,

    I just got some Firecrest Hitech filters and before heading out with them, I would like to know what you use for cleaning them, especially after going to the beach?

    Would a cloth and lens fluid work?

  2. #2
    Administrator ricktas's Avatar
    Join Date
    24 Jun 2007
    Location
    Hobart
    Posts
    15,643
    Mentioned
    10 Post(s)
    Tagged
    1 Thread(s)
    I would be careful rubbing a filter that has been to the beach, and thus may have tiny sand granules on it, or salt. Rubbing it could move those and scratch the coating. Use a blower brush first to remove any particles and then clean with a microfibre cloth, using a liquid is generally not necessary.

    PS, it would be great to see some of your photos in the CC forums and/or you giving other members some advice or CC too. If everyone just logged on and asked questions and did not answer/help others, we would have a forum full of questions and nothing else
    "It is one thing to make a picture of what a person looks like, it is another thing to make a portrait of who they are" - Paul Caponigro

    Constructive Critique of my photographs is always appreciated
    Nikon, etc!

    RICK
    My Photography

  3. #3
    A royal pain in the bum! arthurking83's Avatar
    Join Date
    04 Jun 2006
    Location
    the worst house, in the best street
    Posts
    8,185
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    lens fluid?

    This post has only alerted me to this product(the HiTech Firecrest filters) and I can't find any spec sheet.
    But from what I can gather in the literature(ie. marketing spiel!) is that they're made from schott glass.

    if there were resin, I'd recommend against using lens fluids .. unless you know that the fluid contains little to no solvents(ie. alcohols and such like).

    Being glass tho, you could most likely use lens fluids even if they contain traces of solvent.

    After a test on an old worn out resin filter with Eclipse fluid, I'd recommend not to use such solvent based products on them(resins!)

    With these firecrest filters tho .. although they are glass and glass is basically impervious to most solvents(well at least in the dilutions that photographic related products use) .. I'd still be weary of the fluid.
    Reason is that Formatt claim the use of some kind of 'rare earth' (ie. the firecrest branding!!) in the coatings of these lenses.
    So you need to find out if this coating is impervious to solvents.

    FWIW tho: the marketing does state that this coating is 'sandwiched' between the schott glass, which implies that it's environmentally sealed within the glass.
    That is, the coatings aren't on the face of the filter(which makes sense) and so the material you're cleaning is the actual glass. This would obviously mean that you can easily and safely use solvents like alcohol on the filter without any concern.
    What isn't obvious tho is the degree of the environmental seal at the edges of the filter to the coating that's sandwiched. Can the solvent penetrate through the sandwich to the laminated sandwich?

    Format's HiTech filters are of a very high quality standard, so I'd think that this side seal is pretty much spot on.
    So I'd say that you'll be fine to use the method you described.

    Usually water is good enough to clean most filters, although some folks prefer distilled water.

    ps. to clean my filters(glass CPLs) that are hard to clean or grimy, I use Eclipse fluid on either a pecpad or microfibre cloth and then another one to wipe it clean.
    Nikon D800E, D300, D70s
    {Nikon} -> 50/1.2 : 500/8(CPU'd) : 105/2.8VR Micro : 180/2.8ais : 105mm f/1.8ais : 24mm/2ais
    {Sigma}; ->10-20/4-5.6 : 50/1.4 : 12-24/4.5-5.6II : 150-600mm|S
    {Tamron}; -> 17-50/2.8 : 28-75/2.8 : 70-200/2.8 : 300/2.8 SP MF : 24-70/2.8VC


  4. #4
    Ausphotography Regular Brian500au's Avatar
    Join Date
    03 May 2010
    Location
    Melbourne
    Posts
    1,238
    Mentioned
    4 Post(s)
    Tagged
    0 Thread(s)
    i think if i had just come back from the beach and wanted to clean a glass filter I would first do as Rick suggested and use a blower. I would then just run it under the tap water to rinse off any remaining sand particles. I would then let it air dry and final hit it with a micro fibre cloth and some eclipse fluid.

    When cleaning lenses or my glasses i do use a zeiss lens cleaning wipes (I bought boxes of them from Walmart whilst visiting the US).
    www.kjbphotography.com.au

    1Dx, 5DsR, 200-400 f4L Ext, 100-400 f4.5-5.6L II, 70-300 f4-5.6L IS, 70-200 f2.8L IS II, 24-70 f2.8L II, 16-35 f4 IS, 11-24 f4L, 85 f1.2L II, 500 f4L IS, 300 f2.8 IS, ∑50 f1.4 A


  5. #5
    Member
    Threadstarter
    ceiicilb's Avatar
    Join Date
    08 Jan 2016
    Location
    Perth
    Posts
    5
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Thank you for your help.

    I haven't tried them yet but I think I will blow the dust first and then rinse them with water.

    And I will definitely try to post some pictures over the next few weeks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •