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Topic: Aperture Plate Adjustment on FP60D

Ken Lackner
Phenomenal Film Handler

Posts: 1907
From: Atlanta, GA, USA
Registered: Sep 2001

posted 05-19-2002 01:37 PM

Does anyone know how to fine-tune the aperture plate position on a Kinoton FP60D? thx.

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This one time, at Projection Camp, I stuck a xenon bulb....

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Steve Guttag
We forgot the crackers Gromit!!!

Posts: 12814
From: Annapolis, MD
Registered: Dec 1999

posted 05-19-2002 07:59 PM

Since there is no such thing as an FP-60 I'll presume you mean the PK-60D...a minor point to some but the "FP" designator presumes a complete projector. The PK designator is just the projector head (I believe it stands for Projector Kampf)...

Anyway do you have single lens or turret? Auto aperture or manual aperture? The manual aperture is registered via a roll pin that locks onto the aperture plate, as such, there is no adjustment. As for the auto aperture, can't help you there. Perhaps Larry might chime in.

Steve

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"Old projectionists never die, they just changeover!"

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Ken Lackner
Phenomenal Film Handler

Posts: 1907
From: Atlanta, GA, USA
Registered: Sep 2001

posted 05-20-2002 12:45 AM

Steve, my mistake. PK-60D. I wonder how many time's I've mistakenly referred to it as an FP? Anyway, it is an auto turret and an auto aperture chagner.

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This one time, at Projection Camp, I stuck a xenon bulb....

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John Wilson
Film God

Posts: 5438
From: Sydney, Australia.
Registered: Dec 1999

posted 05-20-2002 02:55 AM

Ken, what do you need it to do? The older FP's were very easy and straightforward to adjust, but the newer plate changers are quite a bit more fiddly.

Let me know what you need to change and I'll try to help.

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"It's not the years honey, it's the mileage". - Indiana Jones.

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Ken Lackner
Phenomenal Film Handler

Posts: 1907
From: Atlanta, GA, USA
Registered: Sep 2001

posted 05-20-2002 10:37 AM

John Said: "The older FP's were very easy and straightforward to adjust, but the newer plate changers are quite a bit more fiddly."

I've noticed this. I've used the FP-23C and the aperture plate was very easy to adjust. I don't see anything that looks obvious on the PK-60D. Anyway, what I need to do is move the plate slightly to the right when it is in the Scope position. This is because there is overshoot on the right masking, and the picture doesn't come all the way to the masking on the left. I don't think this is just me being picky. IMO, it is quite noticeable.

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This one time, at Projection Camp, I stuck a xenon bulb....

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Rick Long Jr
Expert Film Handler

Posts: 211
From: Toronto, Canada
Registered: Jul 2000

posted 05-20-2002 11:08 AM

Before you go adjusting the aperture plate, you should confirm that the image is properly centered with RP-40. It could be that the lensholder in the turret has gone out of adjustment. therefore, if you just move the aperture, your image will not be centered properly, and you could end up projecting DTS timecode or guardband. I don't have much experience with Kinoton machines, but nearly every turret equipped machine I've seen has some method for adjusting the lenses individually. I'd check this first.

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John Wilson
Film God

Posts: 5438
From: Sydney, Australia.
Registered: Dec 1999

posted 05-20-2002 07:27 PM

Indeed use the target film first.

With the new adjsutments, they move both stops on the plates...so if you want scope plate to the left, flat will also come to the left. They are more of a stop mechanism than an adjustment.

Put up the target film and get both lenses centred on screen. If there's some major movement needed by both the same way, then perhaps the machine has moved to the left somehow. You may need to cut a new plate.

If only scope is out, then the lens has moved. Although this is tricky on a Kinoton to fix, with patience it can be made perfect.

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"It's not the years honey, it's the mileage". - Indiana Jones.

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