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swift trilyte 7x50 roof prism

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Old Wednesday 20th March 2019, 16:28   #26
aengus4h
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Join Date: Jan 2019
Location: UK
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Admiral GMC 8x25

Hi all

I recently bought this pair, looks to be 8x25 comparing it against others I have and measuring the objectives. No JB marker but has the same stylised W as the Chinon of trilyte design.

They work well now I've stripped and cleaned, some odd crusty chalky while deposit all around the LH occular/tube that had crumbled down onto the prisms etc. Focus is very fast on these too.

Any idea what the FoV on the trilyte 8x25 model was as I expect these would probably be the same. Seems around 5.5-6.5 degree on viewing.

thanks
Dave
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Old Wednesday 20th March 2019, 16:35   #27
Binastro
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General Motor Company.

Alpha to beta in Ursa Major is 5 degrees 22 minutes angular distance. The pointer stars to Polaris.

B.
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Old Wednesday 20th March 2019, 17:13   #28
aengus4h
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Quote:
Originally Posted by Binastro View Post
General Motor Company.

Alpha to beta in Ursa Major is 5 degrees 22 minutes angular distance. The pointer stars to Polaris.

B.
thanks Binastro, will give that a go. Actually I believe Admiral GMC are a swiss outfit tho I didn't find any info on these so far, but then they are a couple decades or so old. Japanese made given the design and worn JTII sticker.
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