8mm Forum: It's an ST-1200 fest on 8mm Forum

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Topic: It's an ST-1200 fest on 8mm Forum

Jim Bishop
Junior
Posts: 28
From: London
Registered: Jun 2003

posted September 24, 2004 09:20 AM

Good at going on the blink, aren't they? Shame, as they're so good when they work.

New problem:- for no apparent reason I suddenly couldn't get any kind of focus, just a small blur. I'm sure I've just messed up something simple, but I've tried all I dare without losing my rag.

Anyone figure it out?

Cheers
Jim
[Confused]

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Tom Photiou
Film God

Posts: 4837
From: Plymouth U.K
Registered: Dec 2003

posted September 24, 2004 12:16 PM

Jim, what have you tried so far? Have you moved the lens holder in any way, I;l be glad to e mail you the exploded digram and fault page of the repair book if you want to e mail me? [Razz]

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Chip Gelmini
Phenomenal Film Handler

Posts: 1733
From: Brooksville, FL
Registered: Jun 2003

posted September 24, 2004 03:42 PM

I would ask if you removed the lens to clean it, perhaps it is not aligned correctly. Remove the lens and try to re-install. Do this gently. DO NOT pull on the focus knob. Turn the knob to 3:00pm position and it (the lens) should slide right out. Keep the knob at 3:00pm position and slide the lens back in till it almost "click" stops. Then try adjusting the focus later. Remeber...do everything GENTLY.

Chip G

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Chris Quinn
Master Film Handler

Posts: 372
From: England, Bedfordshire.
Registered: Nov 2003

posted September 24, 2004 04:17 PM

You haven't by accident got some grease on the rear of the lens????
Just a thought!

Chris.

--------------------
The other half thinks i'm up to something. Shes right of course.

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Dan Lail
Film God

Posts: 2110
From: Loganville, Georgia, USA
Registered: Jun 2003

posted September 24, 2004 06:53 PM

Do you wear glasses by chance? [Razz]

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Tony Milman
Phenomenal Film Handler

Posts: 1336
From: United Kingdom
Registered: Jun 2003

posted September 25, 2004 02:48 AM

Jim,

Are you able to increase and reduce the size of the "small blur" when rotating the zoom? How small is small?
Will the lens move back and forth fully when you rotate the focus knob?
It sounds as if the lens is sitting too far forwards from the back of the lens holder which might explain the out of focus and small image.

Can you take digital pictures of the area? Which part of London are you in?

--------------------
Tony

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Jim Bishop
Junior
Posts: 28
From: London
Registered: Jun 2003

posted September 29, 2004 05:37 AM

Hi Tom, Chip, Chris, Dan, Tony.

Thanks for all your offers of help & suggestions. Chip, you were right. I removed & replaced the lens into the holder & hey presto, back to normal.

Cheers Everyone.

If you want another serious challenge to work on; the part of the casing that the rear leg unit of the projector is attached to was damaged in transit a few years ago. Just one side of it was somehow flattened back into the rest of the casing, so it now stands like the Leaning Tower of Pisa. I use a prop underneath to level it out, but have been wondering how to permanently fix the problem.

Anyway, thanks again for your concern.
All the best
Jim

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Chip Gelmini
Phenomenal Film Handler

Posts: 1733
From: Brooksville, FL
Registered: Jun 2003

posted September 29, 2004 03:46 PM

You described it right as the Tower of Pisa. That made me laugh, but Grrrrrrrrrrrr it is a problem I have seen before. My question is why couldn't they have put an adjustable rear foot as they did on the GS1200? You are also correct by using a prop. Mine aren't that bad, can use a quater and a penny, or a quater and a nickel, to do the job. Remember though, mysetup at home is always ready, it's not like the machines are in a closet and have to be pulled out to be used. I just open the booth, set the show and roll it!

Good to know I helped you with the focus. But all the other ideas were interesting as well.

Chip G

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Tony Milman
Phenomenal Film Handler

Posts: 1336
From: United Kingdom
Registered: Jun 2003

posted September 30, 2004 12:43 AM

Is it notpossible to find something of the right size that can be superglued into position and then painted to match the other side? [Confused]

--------------------
Tony

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Kevin Faulkner
Film God

Posts: 4071
From: Essex UK
Registered: Jun 2003

posted September 30, 2004 04:24 PM

This seemed to be a common problem with the ST's. I have owned 3 over the years all have had this leaning problem to some small degree. I'm sure this is why they put the adjustable rear feet on the GS1200.
I think Tony's suggestion is a good one. What I have done in the past is to loosen the screws which hold the rear crossbar which the rubber feet are attached to and jacked up the side with washers under the bar and screw to compensate for the lean.
Hope that suggestion also helps.

Kev.

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GS1200 Xenon with Elmo 1.0...great combo along with a 16-CL Xenon for that super bright white light.

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