Re: Center Filter--Do I need one?

[Simon Nathan <simonwide@xxxxxxxxxxxxx>]

dear gene-got it backwards. this darken the edges.
worsen, but i was thinking of edward meyers who in  hisdays at south
henrietta institute of photography (r.i.t.) where he was a student like
no other student they ever had. he generally outsmarted his teachers and
and they wouldn't sit with him in the school cafeteria. simon
Simon Nathan wrote:

 dear gene- you should be able reason this out. you are half way there. you need the build up in center. my typed lines were, at best, a generalization.you use 2xnd as largest one an 1x at center to see what more is needed. less (fewer) slices the better.

Gene F. Rhodes wrote:
back element is dispersal lens. you'll have less room in front and more jiggle room inside. the angle baffles could be removed, but don't as rear element ain't that large.
simon

 Hell Sir, I was talking about my lens not yours.
Remember mine is 47mm f8 super angulon, and this
sucker is little. Lens diameter in the shutter is 7mm.
My (your) center filter design works marvelously but I
still need to add layers, at least one more. (I put a
sample photo in my page.) Drop off appear to be gone now for fine tuning, infinity shots, pls.
at f11 but still there at f8. The gray card photo was
so light I can't make a new mask, but the old one
still works. Thanks for yelling at me.
Turnpike                                                  wasn't yelling atchya!

Simon Nathan wrote:

whoa, there gene- the super angulon on simon/wide is 121mm focal length.it is actual 120mm but for duty purposes years ago they labeled it 121. angulon was called 120mm. good luck. simon says
 

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