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Re: [OM] 20mm f2 and Lieberkuhn Lighting

Subject: Re: [OM] 20mm f2 and Lieberkuhn Lighting
From: JOHN DUGGAN via olympus <olympus@xxxxxxxxxxxxxxxxx>
Date: Mon, 19 Mar 2018 09:32:40 +0000 (UTC)
Cc: JOHN DUGGAN <john.duggan10@xxxxxxxxxxxxxx>
Ahhhhhh. Sounds of brain functions starting up. That makes it an easy 
construction. Thanks for that information Mark. Thanks once again. Regards John 
Duggan, Wales, UK

      From: Mark Dapoz <md@xxxxxxxx>
 To: Olympus Camera Discussion <olympus@xxxxxxxxxxxxxxxxx> 
 Sent: Monday, 19 March 2018, 2:02
 Subject: Re: [OM] 20mm f2 and Lieberkuhn Lighting
   
The Olympus LM-SP stage plate is made of plexiglass, it should very simple to 
duplicate it using a forstner bit to create the step.  The interruptors are 
made of metal and seem to be painted black and white.

-mark

> On 18-Mar-18, at 9:33 PM, JOHN DUGGAN via olympus <olympus@xxxxxxxxxxxxxxxxx> 
> wrote:
> 
> Mark, Thank s very much for those illustrations. At least I now have an idea 
> of what I am trying to construct. As there is no possibility of me cutting a 
> 25mm stepped hole in a clear glass plate I will run with my idea if a thin 
> alloy disc placed on top of a clear plate.When time permits I will try my 
> hand at machining a disc for the LM-20. Annoyingly MANY years ago I saw one 
> for sale at not much more than a roll of film BUT had no use for it!!!! 
> Regards John Duggan, Wales, UK
> 
>      From: Mark Dapoz <md@xxxxxxxx>
> To: Olympus Camera Discussion <olympus@xxxxxxxxxxxxxxxxx> 
> Sent: Saturday, 17 March 2018, 21:53
> Subject: Re: [OM] 20mm f2 and Lieberkuhn Lighting
> 

   
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