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Re: Center Filter--Do I need one?


  • From: Simon Nathan <simonwide@xxxxxxxxxxxxx>
  • Subject: Re: Center Filter--Do I need one?
  • Date: Tue, 16 Feb 1999 16:12:48 -0500

 

Gene F. Rhodes wrote:

 Maybe I don't absolutely need a center filter, but shouldn't
I get one anyway ?   Maybe.  My software center filter is
working pretty good, even at f11. I made a test this morning
shooting at f32 - f11 and they all came out almost perfectly
acceptable. I added an f11 test photo and the gray card shots
to my page if you wanna see.
Gene (behind Turnpike Ford in Tulsa)   Hi Sir ! hello, turnpiker!

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II*
 

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dear gene- start with fourth line down. that's side view of two inch gelatin
neutral density filter. third line down is same but  you've made it 1-1/2"x2",
next gel. nd sq. is 1" x2". top is 1/2"x 2". i am having trouble illustrating this
with single finger control on keyboard. what you have done is to make centerweighted nd filter to match your lens. center has three gel strips holding back light to makes edge nd equalize. worked on tomiyama art   when used in 6x24cm mode. scotch held it there, as well as together.     scale widths of nd slices to width of from element. costs ya  lens speed same as expensive kind. simonsays