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[OM] Re: E-1 Infrared

Subject: [OM] Re: E-1 Infrared
From: Andrew Gullen <andrew.gullen@xxxxxxxxxxxx>
Date: Mon, 10 May 2004 07:19:45 -0400
Oops, you're right: the 87C is a much deeper filter.

The IR season is just beginning here; my excuse is rustiness. :-)

Andrew

on 2004/05/10 7:12 AM, Klaus Elmquist Nielsen at klaus.elmquist@xxxxxxxxxx
wrote:

>> Date: Sun, 09 May 2004 10:16:58 -0400
>> From: Andrew Gullen <andrew.gullen@xxxxxxxxxxxx>
>> 
>> ... I've tested with an 092, while the R72 is an 87C, right?) ...
> 
> The Hoya R72 is an 89B, as far as I know:
> 
> http://www.cocam.co.uk/CoCamWS/Infrared/INFRARED.HTM#FIL
> 
> Scroll down slightly to see the table. What surprises me is that B+W 092
> and Hoya R72 is the same type of filter.
> 
> Anyone that can comment on quality of Heliopan filters, btw?


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