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Please explain coatings/ How is Barska |
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martin3175
Optics Master Extraordinaire Joined: January/19/2005 Location: Maryland Status: Offline Points: 3773 |
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Still laughing at the "barfska" comment --good one
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hunter12345
Optics Journeyman Joined: November/21/2007 Status: Offline Points: 470 |
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Barska has been a very popular scope that sells well in the larger sporting good stores and on line.My scope was bought last year and placed on top a Rossi single shot .223 rem.Clear and bright scope when theres plenty of sunlight.When turning up the power the image gets blurry and when it starts getting dark the scope is useless.A cheap scope on a cheap rifle.I would never buy another and the reason I have the scope was that the salesman gave me this scope as a package deal with the gun.
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cccombo
Optics GrassHopper Joined: February/17/2008 Location: OZ Status: Offline Points: 42 |
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The coating dosen't matter if the glass sux
-1 for barfska |
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"In politics shared hatreds are almost always the basis of friendships." -- Alexis de Tocqueville
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Kickboxer
MODERATOR Moderator Joined: February/13/2008 Status: Offline Points: 23679 |
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Not exactly true. A high quality coating on a lower quality glass will still improve its light transmission qualities. (The coatings reduce the reflection of light.) However that will not significantly impact image distortion due to poorer quality glass, other than giving a brighter fuzzy (or otherwise maligned) image. The "best" coatings are very expensive, but a "good" multi-coating on moderate quality glass can lead to an initial appearance that the scope is better than it really is. The improved light transmission will provide an appearance of better glass at shorter ranges, but increase the range and move into low light situations, and the glass quality will become apparent. Impurities in the lower grade glasses have a big impact on resolution. Then, the quality of the lens grinding and polishing processes also has an impact. A poorly formed lens will create all sorts of distortion problems, even in very high quality glass.
In short, the coating does matter, but there are a number of factors, all of which must be accounted for and brought to their maximum potential, in the production of a quality optic. That is why it is important to really spend time with a scope before deciding whether it suits a particular purpose and if it is "as advertised". Even the best builders, though not commonly, sometimes make mistakes.
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