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 Post subject: Swift TECHNAR 16X50's
PostPosted: Wed Sep 21, 2016 12:59 pm 
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Joined: Mon Jan 09, 2006 11:05 am
Posts: 5193
Location: Lancashire
Bought with the case for a tenner today on a flea-market. Excellent optics and unblemished leatherette covering. Paint worn off on some metal parts of the body, but can be repainted.
Swift bins have a reputation for being good, and this model was probably made in the 1970s or thereabouts.

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PostPosted: Wed Sep 21, 2016 5:41 pm 
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Joined: Mon Jan 18, 2010 9:25 am
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Hi Brian.
Their budget model maybe.

You are one of the few, like me who likes high power binoculars.

Regards,
David


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PostPosted: Thu Sep 22, 2016 4:08 pm 
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Joined: Mon Jan 09, 2006 11:05 am
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Location: Lancashire
I like to try all the power ranges in binoculars David. I reckon these earlier models are superior to ALDI and LIDL bins. As you'll appreciate, it's getting harder to find binoculars made decades ago that are free from blemishes and miscollimation.
Some years ago, I was fortunate to acquire a high precision ex-military mirror for the homemade binocular mirror-mount. The mirror can take far higher magnifications than high-powered binoculars yield: star images are good even at the most acute mirror angles.
Initially, I tried an unworked first-surface float glass mirror ( £18 ), but, beyond X12 bins, star images were smeared and exhibited astigmatism when the mirror was tilted .

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PostPosted: Tue Nov 21, 2017 4:44 pm 
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Joined: Mon Jan 09, 2006 11:05 am
Posts: 5193
Location: Lancashire
Since acquiring the TECHNAR glass an annoying particle of matter appeared on the front face of a prism. It seemed a straightforward procedure to unscrew the left-side objective barrel and pick off the offending particle with a soft artist's brush.
As we know, things are not always straightforward, the barrel refused to unscrew, despite applying a considerable hand grip to it :x .
Fortunately, some bright spark invented the strap wrench :idea: . Out it came from the toolbox, and with a quick jerk of the wrench the barrel loosened :D . Off came the barrel, probably for the first time since it was screwed in circa 1970s , in went the artist's brush and out came the particle :wink: .

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