Re: [Leica] Projection

["Joe Stephenson" <joeleica@email.msn.com>]

Great post, Bob.
I used to take slides, and we still break them out from time to time, But
your kit sounds marvelous and powerful as a visual tool. I would love to see
one of your presentations.
Joe Stephenson
- -----Original Message-----
From: Bob_Maxey@mtn.3com.com <Bob_Maxey@mtn.3com.com>
To: leica-users@mejac.palo-alto.ca.us <leica-users@mejac.palo-alto.ca.us>
Date: Wednesday, November 04, 1998 2:26 PM
Subject: [Leica] Projection


>>>I want to simplify the process of viewing (Leica) slides at home.
>>>Collapsible screens are fine, but the hassle of erecting them and moving
>>>the furniture (often minor, I concede)  can be a disincentive to some.  A
>>>semi-permanent set-up would be very acceptable.
>>>
>>>One obvious solution is to fit to the wall a folding screen which you
>pull
>>>down when needed.  Another could  be  to paint the wall.  This is where I
>>>would be grateful for comments and advice from anyone who has tried this
>>>potentially  anti-social solution.   Not everyone wants one wall  (or
>part
>>>of it) in their living-room to be white.
>
>
>Having installed a number of projection systems in the past, including my
>own, I think I can help you. If you want top quality, A permanent
>installation is the only choice. Unfortunately, white paints are not
>necessarily the way to go, and I would suggest a silver Lenticular (or
>other silver type surface) screen. Make sure it can be tensioned to remove
>wrinkles.
>
>Paint suitable for use as projection surfaces can be any white paint, but
>it will not reflect as well as a silver screen. You might consider a
>ceiling mounted pull down screen as well.
>
>
>
>>>Assuming that paint is used:
>
>>>   a]  What version of white should it be?  Modern paint catalogues show
>>>forms of     white ranging from snow to dairy cream.  This is not meant
>to be
>>>a silly      question.  Some screens are in silver after all.
>
>Ice Box white, pure white and other bright whites are suitable if you need
>to paint, but remember, quality will suffer. Eastman Kodak makes an optical
>white paint, but it is expensive and would cost you a fortune to use. I
>think it works out to about a grand a gallon. Rosco also makes white paints
>as well.
>
>>>   b]  What finish works best?  I personally find screens with a beaded
>>>finish too   bright  for those sitting in the centre, and too dim for
>those
>>>at the sides. So  perhaps a matt finish?
>
>
>I do not use glass beads type screens as they do discolor over the years. I
>suggest you stay away from them. The problem is in all the smoke, cooking
>oil and grease. dust and other things that will degrade performance.
>Setting up the projector properly helps eliminate the differences in how
>bright the image is. Remember, you are never going to completely eliminate
>the problem.
>
>My best advice is first, consider if it is to be a temporary install or a
>permanent one, and that will help determine your options.
>
>Incidentally, my last personal setup was a custom made large Lenticular
>screen, stereo sound system and 4 synchronized 35MM projectors, 2
>synchronized Hasselblad projectors, a pair of stereo projectors and motion
>picture projection for 35MM release prints. Forgetting all of the
>equipment, the single most important part of the system was the projection
>surface.
>
>Bob
>
>