Lee filters with polarizer

<p>Hi all,<br>

I using the Lee filters holder for landscape photography, and would like to use my 100mm filters in combination to a polarizer filter. I understand that I would need to buy the adaptor ring to screw to the foundation lee holder, plus the 105mm filter… a costly solution.</p>

<p>Currently I am using the Nikon 10-24mm (77mm) and I screw a circular 77mm polarizer on the top. The problem is that the lee filters holder does not screw in on the top the polarizer filter, so I have to remove the circular polarizer between the lens and the holder.<br>

I am looking for alternative solutions to buying the 105mm filter ring adaptor.<br>

1) Is there a way to screw the filter holders on the top of the circular polarizer (maybe a step up lens adaptor)?<br>

2) Is there a 100mm polarizer filter I can just slide in, suitable for landscape photography?<br>

Thanks</p>

<p>Lee do a square slot-in polariser that avoids the need to buy the round one plus adapter. Lee make a point of recommending that the polariser (whatever kind) always goes in front of the polyester filters so putting the filter holder over the front of the polariser probably isnt recommended.</p>

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<p>The problem is that the lee filters holder does not screw in on the top the polarizer filter,</p>

</blockquote>

<p>That is not a problem, it is a feature! ;)</p>

<p>Seriously, as Tom points out, you can't put a plastic filter in front of a polarizer. The scene emits partially polarized light. The sky and reflections from water are very polarized. Light reflecting off leaves is partially polarized, because of the transparent, waxy coating on the leaves.</p>

<p>When polarized light passes through something like a plastic filter, the polarization angles of the light get twisted, and the amount of twist depends on the wavelength (color) of the light. When that "twisted up" light passes through another polarizer, like the one you were trying to put behind the Lee filter, there are random color patterns. So, the proper order is scene, polarizer, plastic filter, lens.</p>

<p>thanks guys, learnt something new from your asnwers :)</p>