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Can color indicate quality lens coatings? |
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tpcollins
Optics Journeyman Joined: January/12/2009 Status: Offline Points: 428 |
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Posted: February/14/2009 at 07:13 |
I have both Swarovski and Lieca bins, a Stokes Sandpiper, and a new Elite 4200 rifle scope. When I look at these, I can see tints of green and even pink spots in the glass (the Sandpiper's entire lens has a greenish tint because it's easier to see, the Leica 8x20 compact has pink spots only). I remember seeing optics with bluish tints but can't remember if they were expensive/inexpensive. Is there a way to indicate quality of lens coatings by the color?
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lucznik
Optics Master Joined: November/27/2004 Location: United States Status: Offline Points: 1436 |
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What if the hokey pokey really is what it's all about?
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RifleDude
MODERATOR EVIL OPPRESSOR Joined: October/13/2006 Location: Texas Status: Offline Points: 16337 |
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In some cases, YES! If you see a lens coating that is reflective, bright ruby red, it is on a low quality optic. I'm not talking about a coating with a reddish tint when you look closely at certain angles, I'm talking about the prominent bright red coatings often seen on really cheap binos and scopes. Also, if you look directly at a lens surface and can readily see your reflection, it is indicative of low quality coatings, because that means that a high percentage of light will be reflected off the lens surface rather than be transmitted through the lens.
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Ted
Money can't buy happiness... but it's much more comfortable to cry in a Porsche than on a bicycle. |
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tpcollins
Optics Journeyman Joined: January/12/2009 Status: Offline Points: 428 |
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Is there a difference between just seeing your silhouette versus being able to shave?
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trigger29
Optics Master Extraordinaire X = 180 Y = 90 (X+Pyro)+(Y-Pyro) = ? Joined: September/29/2007 Location: South Dakota Status: Offline Points: 4353 |
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I agree with Luxnik, and Rifledude. You can not allow color alone to tell you the quality of the coatings, as every company's process is different. Although if you see red, and they are marketed as having "ruby coated lenses" RUN!! These will usually be accompanied by a price tag that you usually don't see on Leica, or Swaro products. As to your last question, I would say that being able to shave isn't a good sign. A good image coming back means there is a lot of light being reflected. That means that light isn't going to your eye.
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"A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed." |
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HOLLOWPOINT
Optics Apprentice Joined: November/24/2007 Location: Germany Status: Offline Points: 79 |
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It is NOT possible to judge the quality of lens coatings by the appearance of light reflections on the lens surface.
A single bluish reflection of a light source indicates a single layer coating on that lens.
Two or more differently colored (greenish/yellowish) reflections indicates a multi-coated lens.
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Independence is my happiness, and I view things as they are, without regard to place or person; my country is the world, and my religion is to do good. Thomas Paine
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