8mm Forum: PINK CONDENSER LENS?!?!

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Topic: PINK CONDENSER LENS?!?!

David Pannell
Phenomenal Film Handler

Posts: 1072
From: Horsham, West Sussex, UK
Registered: Nov 2004

posted March 18, 2007 12:56 PM

I just took delivery of an Ampro Futurist Standard 8 silent projector in mint condition - I mean mint - as a spare/standby for my Elmo E-80.

As with the Elmo, it takes the identical lamp, a 750-watt A1/9.

However, the illumination on the screen is a delicate hue of pink, compared with the creamy white of all my other projectors, 16mm Ampro Stylist Major included.

When I took a closer look, the condenser lens is definitely pink.

Has anyone come across anything like this before? It doesn't seem to make much difference to the projected image though.

Thanks,

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Dave.

Valves and celluloid - a great combination!
Early technology rules OK!

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Barry Johnson
Master Film Handler

Posts: 358
From: United Kingdom
Registered: Jul 2003

posted March 19, 2007 02:24 PM

Yes David,I have.
It is due to faulty glass in manufacture,exascerbated in use by the heat from the lamp.
Rare indeed as they should be colourless or slightly green.
The only pinkish glass you would find is in dichroic glass to reduce heat transmission-but that projects as white.
Confusing innit!!

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Standard8 rules!!

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David Pannell
Phenomenal Film Handler

Posts: 1072
From: Horsham, West Sussex, UK
Registered: Nov 2004

posted March 19, 2007 03:30 PM

Thanks Barry,

The only sensible answer I've had. I have a colleague looking out for a suitable replacement, as he is currently breaking/modifying andgenerally salvaging parts from various 8mm projectors. Here's hoping!

--------------------
Dave.

Valves and celluloid - a great combination!
Early technology rules OK!

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