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[OM] Re: Lighting question (Polarization)

Subject: [OM] Re: Lighting question (Polarization)
From: "Piers Hemy" <piers@xxxxxxxx>
Date: Thu, 8 Dec 2005 22:05:18 -0000
Doh (I think that's the word), I should have known that.  

--
Piers 
 
-----Original Message-----
From: olympus-owner@xxxxxxxxxx [mailto:olympus-owner@xxxxxxxxxx] On Behalf
Of Dean Tyler
Sent: 08 December 2005 19:17
To: olympus@xxxxxxxxxx
Subject: [OM] Re: Lighting question (Polarization)


This is from the description of the T10 Ring Cross Filter:

"With the aid of the optional Ring Cross Filter POL, existing of an outer
polarizing filter (covering the flash surface),orientated at right angles to
an inner polarizing filter (covering the camera lens), the ring flash
reproduces glossy objects, minimizing undesirable directly reflected light
(shells, human eyes, etc.)."

It sounds to me polarization at the light source and lens and the angle of
the polarization is at a right angle.

Dean



-----Original Message-----
From: Piers Hemy [mailto:piers@xxxxxxxx]
Sent: Thursday, December 08, 2005 2:00 PM
To: olympus@xxxxxxxxxx
Subject: [OM] Re: Lighting question (Polarization)



I believe the theory is that you only need to polarize the source at right
angles to the reflecting plane to eliminate reflections.  If you have a
polarizer on your lens using polarized light sources, you will surely
discover a variable ND filter system.

--
Piers

-----Original Message-----
From: olympus-owner@xxxxxxxxxx [mailto:olympus-owner@xxxxxxxxxx] On Behalf
Of Dean Tyler
Sent: 08 December 2005 18:40
To: olympus@xxxxxxxxxx
Subject: [OM] Re: Lighting question (Polarization)


OK, now I have a question.  I thought to idea of using polarized gels on the
light source required polarization on the lens.  I have thought about trying
this a T28 twin flash, but I have always thought the light source would need
to be polarized in one direction and the lens needs to be polarized in the
opposite direction to cancel the glare.  This is most likely incorrect, but
I have been trying to think of ways to reduce glare in macro photography.
Any help?

Dean

-----Original Message-----
From: Walt Wayman [mailto:hiwayman@xxxxxxx]
Sent: Thursday, December 08, 2005 11:12 AM
To: olympus@xxxxxxxxxx
Subject: [OM] Re: Lighting question


Now THAT'S real photography!  Sometimes size is what matters most.

Walt, who's actually used an 8x10, but never more than 50 yards from the
car.  :-)

--
"Anything more than 500 yards from
the car just isn't photogenic." --
Edward Weston

 -------------- Original message ----------------------
From: Stephen Troy <sctroy@xxxxxxxxx>

> My brother shoots artwork professionally - two strobes at 45 degree 
> angles with polarizing gels on each.  He doesn't use an E-1 though - 
> he uses an
8x10.
>
> Steve Troy
>
>
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