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Old July 19th, 2006, 10:30 PM   #1
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Filter Size

What is the smallest matte box that will work with the HD100 lens. I assume a 4x4 will work, that a 4x5.6 isn't necessary. However, will a 3x3 also work? They are a lot smaller to carry around! (And I already have them).

Thanks,

David
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Old July 20th, 2006, 01:10 PM   #2
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I think 3x3's would be too small. That's smaller than 82mm, which is the circular filter size.
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Old July 20th, 2006, 06:32 PM   #3
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However I use 3x3s on an 82mm Canon .7x WA Adapter which is in front of a 5.6mm lens. Cavision said the problems occured under 3.9mm effective.

The 16x5.5 is obviously longer. Even with a .7x adapter it is still 3.85mm.

So, shouldn't it work?
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Old July 20th, 2006, 06:41 PM   #4
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Quote:
Originally Posted by David Ziegelheim
What is the smallest matte box that will work with the HD100 lens. I assume a 4x4 will work, that a 4x5.6 isn't necessary. However, will a 3x3 also work? They are a lot smaller to carry around! (And I already have them).

Thanks,

David
If you already have the 3x3 matte box, can't you just try it?
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Old July 20th, 2006, 07:38 PM   #5
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I have a Chrosziel 3X3 matt box, with one fixed and one rotatable filter slot, that works fine when attached to the .82 WA adapter on front of the standard 16X lens of my HD100. I'd had it for my DSR500, so tried it on the HD100 before looking any further. I did need to thicken the outside of the .82 just a tad in order for the matt box to screw on tightly - I just added one layer of white masking tape to the end of the .82. The Chrosziel 3X3 doesn't work when screwed on directly to the 16X lens - crimping the outside diameter of the end of the lens binds it enough that the focus ring no longer works properly (you can see this by just squeezing the end of the lens and trying to focus). But this is a mounting problem - if there were a 3X3 mattbox that mounted under the camera that shouldn't be a problem. In any case, 3X3 is plenty large enough, even with the .82 WA adapter.

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Old July 20th, 2006, 08:34 PM   #6
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Cavision has adapters to reduce the 85mm mount to 82mm, 72mm, and I believe some other sizes. What size is the base lens? I use the matte box without an adapter on the Cannon WA, and with a 52mm to 72mm adapter and a 72mm-85mm reducer without it.

Looking at the 16x5.5mm lens, it 'looked' like the 3x3 would work. it looks like it might even work on the 18x4.2, at least if a WA is not used.
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