IR Filters: Sniperscopes - Help Needed
Printed From: The Carbine Collector's Club
Category: The Club
Forum Name: Infrared Scopes and Equipment, Night Vision
Forum Description: Sniperscope, Snooperscope, Metascopes, T3 carbines
URL: http://www.uscarbinecal30.com/forum/forum_posts.asp?TID=5145
Printed Date: Dec 03 2023 at 12:04am
Software Version: Web Wiz Forums 12.01 - http://www.webwizforums.com
Topic: IR Filters: Sniperscopes - Help Needed
Posted By: sleeplessnashadow
Subject: IR Filters: Sniperscopes - Help Needed
Date Posted: Jan 08 2021 at 7:31am
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We are attempting to identify all of the IR filters used with the Sniperscopes Models M1, M2, and M3. What we know of so far are shown and described below. Sorry the pics aren't better but they are utilitarian as opposed to display pics. If you have something different please add to this thread with a description of what you have using the info format used for the 7 filters below. A pic or two of the markings would also be greatly appreciated but isn't a requirement. Thanks much Jim ------------------------------------------------------------------------------------------------------------------------------------- Our Reference designation: A-1529 Material: glass IR Coating: on the side facing the bulb Raised rim around outer edge: Yes Filter Markings & Method(s): a) THIS SIDE OUT A-1529, cast with glass b) 918 crossed out w/ S and 919 etched in glass Gasket Markings: a) N-677  ------------------------------------------------------------------------------------------------------------------------------------- Our Reference designation: Kopp Glass Material: glass IR Coating: on the side facing the bulb Raised rim around outer edge: Yes Filter Markings & Method(s): a) THIS SIDE OUT, white letters on glass b) KOPP GLASS, cast w/glass on rim c) 5/23 - 100, etched on rim d) 5 15/32 D, cast w/glass on rim Gasket Markings: a) N-677  ------------------------------------------------------------------------------------------------------------------------------------- Our Reference designation: ES Material: glass IR Coating: sandwiched between 2 pieces of glass Raised rim around outer edge: No Filter Markings & Method(s): unmarked Gasket Markings: a) N-677 b) D-557 c) ES  ------------------------------------------------------------------------------------------------------------------------------------- Our Reference designation: AO Material: glass IR Coating: on the side facing the bulb Raised rim around outer edge: Yes Filter Markings & Method(s): a) THIS SIDE OUT, cast with glass b) 8247-29-1, cast with glass Gasket Markings: none Note: sealed in package marked American Optical, commonly found on M3 scopes mfg by American Optical  ------------------------------------------------------------------------------------------------------------------------------------- Our Reference designation: GB Material: glass IR Coating: unknown Raised rim around outer edge: Yes, but barely Filter Markings & Method(s): a) THIS SIDE OUT, cast with glass b) G.B. INC., cast with glass rim, located on side facing light Gasket Markings: none Notes: commonly found on M3 scopes mfg by Capehart-Farnsworth  ------------------------------------------------------------------------------------------------------------------------------------- Our Reference designation: 8247-1x Material: glass IR Coating: on the side facing the bulb Raised rim around outer edge: Yes Filter Markings & Method(s): a) THIS SIDE OUT, cast with glass Gasket Markings: a) 8247-29-2  ------------------------------------------------------------------------------------------------------------------------------------- Our Reference designation: 8247-2x Material: glass IR Coating: on the side facing the bulb Raised rim around outer edge: Yes Filter Markings & Method(s): a) THIS SIDE OUT, cast with glass b) 8247-29-1, cast with glass Gasket Markings: a) 8247-29-2  ------------------------------------------------------------------------------------------------------------------------------------- |