[rollei_list] Re: Hey, Rolleiwide users, is using the glass plate, or, not using the glass plate a big deal?

  • From: "Richard Knoppow" <dickburk@xxxxxxxxxxxxx>
  • To: <rollei_list@xxxxxxxxxxxxx>
  • Date: Thu, 27 Sep 2012 18:59:22 -0700
----- Original Message ----- From: "Vick Ko" <vick.ko@xxxxxxxxxxxx> 
To: <rollei_list@xxxxxxxxxxxxx>
Sent: Thursday, September 27, 2012 3:02 PM
Subject: [rollei_list] Re: Hey, Rolleiwide users, is using the glass plate, or, not using the glass plate a big deal?
Yep, 1/3rd of the thickness of glass. That's what I remember from "school".
And glad to see that Rollei's solution is in direct correspondence with that. 

Vick
To be precise its about 1/3rd assuming the glass has an average index of refraction and is in air on both sides. Since the glass is against the film on one side the index should really be calculated for gelatin but gelatin has a low index so it probably does not make a practical difference. 


--
Richard Knoppow
Los Angeles
WB6KBL
dickburk@xxxxxxxxxxxxx 
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