8mm Forum: what is this?

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Topic: what is this?

John Yapp
Expert Film Handler

Posts: 148
From: Telford England.
Registered: Dec 2011

posted May 09, 2013 03:59 PM

Bought this lens on ebay without really knowing it's exact function. Doesn't fit any of my lenses, so unable to tell it's benefits. Can anyone enlighten me?

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Maurice Leakey
Film God

Posts: 5895
From: Bristol. United Kingdom
Registered: Oct 2007

posted May 10, 2013 04:23 AM

Google says Sideral is "relating to the stars".

The ebay seller thinks it's a wide angle projection lens, however, such a lens would never be as long as this, so I suggest it could be an attachment for fitting to a camera to photograph far objects such as stars.

It's only a wild guess.

--------------------
Maurice

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Alexander Lechner
Expert Film Handler

Posts: 118
From: Leoben, Austria
Registered: Apr 2009

posted May 10, 2013 04:31 AM

With only a quick look at the picture I read "SPECIAL" where it says "SPACIAL".
I think this confirms what Maurice is suggesting.

--------------------
Alex

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Pasquale DAlessio
Film God

Posts: 3523
From: Bristol,RI, USA
Registered: May 2010

posted May 10, 2013 05:05 AM

I concur!

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Martin Jones
Phenomenal Film Handler

Posts: 1269
From: Thetford , Norfolk,England
Registered: May 2008

posted May 10, 2013 06:03 AM

Interesting!
The word "Spacial" immediately caught my attention... because I have two boxes of items containing items bearing this word.
They are "pseudo" 3-D sets, comprising 6 (one box has only 4) Polaroid spectacles and a lens attachment which produces 2 slightly displaced images of the same frame on the screen, polarized at right angles to each other.
This is supposed to provide 3-D movies from ordinary flat ones!!!
Needless to say, it doesn't... but the public would vbelieve anything in those days.

"Spacial" is presumably the name of the manufacturer.

( Price on the 18/1/1968 was 11 shillings and 9 pence (Inc shipping), which equate to GBP 0.59 !!!!!
Martin

--------------------
Retired TV Service Engineer
Ongoing interest in Telecine....

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John Yapp
Expert Film Handler

Posts: 148
From: Telford England.
Registered: Dec 2011

posted May 13, 2013 03:31 PM

i just found out that it fits my agfa sonector if I take the mount off..and it turns this...

into this..

woohoo!

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Pasquale DAlessio
Film God

Posts: 3523
From: Bristol,RI, USA
Registered: May 2010

posted May 13, 2013 05:01 PM

WooHoo! What a find!

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Lee Mannering
Film God

Posts: 3216
From: The Projection Box
Registered: Nov 2006

posted May 15, 2013 12:14 PM

Not really as it will greatly reduce the amount of light on screen. Had one of those in the 70’s and it quickly moved on. They came without projector lens and you had to either work out how to attach it to you existing lens or use a bracket.

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Hugh Thompson Scott
Film God

Posts: 3063
From: Gt. Clifton,Cumbria,England
Registered: Jan 2012

posted May 15, 2013 03:40 PM

I had something similar, as discussed in a different thread,it only
was a single element affair, but was a useful item to have. It and I
parted company when a friend of mine,who only had a short throw
but wanted big pictures,his need was greater than mine.

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John Yapp
Expert Film Handler

Posts: 148
From: Telford England.
Registered: Dec 2011

posted May 15, 2013 04:06 PM

I have to say Lee, that it doesn't "Greatly" reduce the amount of light on the screen, although it lessens it a bit. I think this must be very similar to Hugh's as it is indeed just one lens element. I'm not complaining at £4 plus postage.

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Hugh Thompson Scott
Film God

Posts: 3063
From: Gt. Clifton,Cumbria,England
Registered: Jan 2012

posted May 15, 2013 06:20 PM

Really there isn't any light loss as such John,it just spreads it over
a greater area. I agree that at such a small outlay you've got a
nice lens that could "save the day" at a screening event. Well done.

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