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Thread: 100 or 84 mm?

  1. #1
    joebranko's Avatar
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    100 or 84 mm?

    Is there any advantage in purchasing an 84mm graduated filter vs a 100mm?

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    Re: 100 or 84 mm?

    Presumably you don't already own the filter mount/holder system? 100mm is better for wider angles. 84mm is less bulky and the filters might be marginally less expensive.

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    Moderator Manfred M's Avatar
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    Re: 100 or 84 mm?

    +1 to Dan's comments. The other advantage is that 100mm is the standard holder size across a number of manufacturers including Lee, Formatt Hitech, NISI, etc, so it is possible to mix and match from the various manufacturers. The other sizes are non-standard and you will likely have to stick with that particular filter supplier.

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    Re: 100 or 84 mm?

    Yes the wider the lens the more you have to be careful that the filter holder doesn't cause vignetting, particularly if it is thick enough to hold several filters. I used to have a 10-20mm lens with a 77mm filter thread. That's getting pretty close to 85mm. Also with the 100mm size, you have more room for adjustment of a gnd filter up and down.

    Dave

  5. #5
    joebranko's Avatar
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    Re: 100 or 84 mm?

    Thanks Dan. I have not purchased holders nor filters as yet, but am leaning toward 100mm.

  6. #6
    joebranko's Avatar
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    Re: 100 or 84 mm?

    Thanks Manfred. 100mm sounds more logical if I'm to keep my purchasing options open.

  7. #7
    joebranko's Avatar
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    Re: 100 or 84 mm?

    Thanks Dave. I think I will opt for 100mm

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    Re: 100 or 84 mm?

    The one thing you haven't told us unless I missed it is the lens you plan to use it on?

    Ultra Wide angle lenses usually require a 150mm filter system. (Lee & Nisi have versions that spring top mind)

    100mm as said is the universal standard for most lenses though.

  9. #9
    joebranko's Avatar
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    Re: 100 or 84 mm?

    Thanks Ian. The lenses I will use it on are:
    55 -250mm Canon
    17-70mmSigma , most often
    11-16 Tokina. Occasionally

  10. #10
    Moderator Manfred M's Avatar
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    Re: 100 or 84 mm?

    Quote Originally Posted by joebranko View Post
    Thanks Ian. The lenses I will use it on are:
    55 -250mm Canon
    17-70mmSigma , most often
    11-16 Tokina. Occasionally
    Joe - I just popped the Lee Foundation kit holder on my Tokina 11 -16mm lens. I have it set up so that it will take three filters PLUS a polarizer holder. I used the Lee 77mm WA (wide angle) adapter.

    I've put it on a crop-frame Nikon, which is a bit wider angle than your Canon. No vignetting at all with the setup unless I put on the polarizer. There I have noticeable vignetting until I hit 14mm. I haven't tried it, but suspect that taking things down to the more standard 2-filter slot would eliminate most if not all of that.

  11. #11
    joebranko's Avatar
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    Re: 100 or 84 mm?

    Thanks Manfred. That is good to know. I did not want to go larger than 100 mm.

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