Re: [Largeformat] Red Dot Artar 14" f:9

[wd1346@airmail.net]

>My experience with placing the gel on the rear of the lens is that 
>all you are doing is changing the color of the light.  The image is 
>out of focus at the lens.  Plus, the gel is protected from the wind 
>and other elements that have a nasty way of damaging them.  That 
>said, I do try and take care of the filters I place in that 
>position.  If I start to see problems with the get, I have no 
>problem buying a new one.  In fact, I think I have one of the rear 
>mount holders that Calumet sells around here some place.  It has 3 
>legs and is adjustable.  Double sticky tape holds the unit in place 
>on the lens board.  I never bonded with it and it tends to need 
>repair.  Hence, I started just taping the filter gels to the back 
>element.

Yeah....most photographers just tape the filter to the back element. 
I made a nifty little filter holder for 4 inch cc filters that 
consited of two filter holders.  One was permanently attached to the 
back of the lens board on little legs, the other held the filter and 
slid in an out.  This kept the gels from getting damaged from tape.

In Chicago we went through a lot of filters and sometimes we were 
forced to use bad ones when nothing else was available, but honestly, 
it never made a difference although we all winced doing it.

--Bill