8mm Forum: Bauer 520 duoplay- lack of steady focus ?

This is topic Bauer 520 duoplay- lack of steady focus ? in forum 8mm Forum at 8mm Forum.

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Posted by Niels Peter Buch (Member # 3757) on February 28, 2015, 05:18 AM:

My bauer seems to lack of steady focus.And there is a kind of "jitter" in the image, allthough the film is shown without any other problems.
Does anyone have and idea what the problem is ? and perhaps could upload a picture of the "arrangement around lens /mask / film "channel".

Kind regards

Posted by Andrew Woodcock (Member # 3260) on February 28, 2015, 05:45 AM:

Sounds to me like the onset of the usual cam problem. May only need lubricating at this stage Niels hopefully.

It is highly unlikely to be anything to do with the pressure plate or the gate or the lens if everything is at factory settings.

[ February 28, 2015, 10:05 AM: Message edited by: Andrew Woodcock ]

Posted by Niels Peter Buch (Member # 3757) on February 28, 2015, 06:27 AM:

Ok....it seems to me I can get a steady focused picture by holding the preasure plate just a bit against the film ?
I will try to oil and see how it goes !

Posted by Andrew Woodcock (Member # 3260) on February 28, 2015, 07:41 AM:

No Niels, no oil should go anywhere near the cam lobe etc, apart from silicone oil on the special felt pad beneath the lobe.

Try adjusting the pressure plate angle to see if this gets your picture steadier. Do not fully compress the springs though, this amount of adjustment should never be needed to the pressure plate if the cam and follower still have life left in it.

Adjust the pressure plate by first removing the red arrowed screw and lower the on/ off speed controller switch.

Then undo the socket head grub screw using an allen key as shown in yellow arrow.

Then turn the eccentric cam screw (purple arrow), to manoeuvre the pressure plate in and out to the desired position whilst monitoring the spring pressure applied.

See photograph below:

[ February 28, 2015, 10:00 AM: Message edited by: Andrew Woodcock ]

Posted by Niels Peter Buch (Member # 3757) on March 02, 2015, 05:03 PM:

The "Operation went well and the patient survived" !!!!
Claw-pin and frame adjusted and my Bauer works very well.
Thanks for your great support Andrew Woodcock.

Kind regards

Posted by Andrew Woodcock (Member # 3260) on March 02, 2015, 11:52 PM:

Glad it is all adjusted well and now is working A1 for you [Razz]

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