On the contrary.

The lenses in a good scope (not your BSA, sorry :lol: :wink: ) are coated with high quality lense coating. This coating will allow up to aprox 99% of the light pass through. That goes for every lense in the scope. Uncoated lenses struggles to let much more than 90% through.

So for a typical variable scope, the difference in light transmission between a high end scope with the latest and best coating - and a cheap Chinese scope is huge when it comes to light transmission.

Now to the point, IF those glasses are made with yellow plastic - you'll have another lense in your way. But this one isn't anywhere near 90% light transmission. So comining all the lenses in your scope, up to five, and the glasses..you get a total of six lenses - which in total block maybe as much as 20-25% of the light. Coloured glass in general, coated or not, is bad news in low light (a bit depending just how low we're talking, that is).

 

No, what I meant is, would a scope with this high contrast tint be good, and has it ever been done before?

I would imagine counter sniping could benefit if the shooter could see in higher contrast.

 

I've seen translucent flip up scope caps with bight yellow tint before.

If they're used for what you're describing or just for vanity I have no idea.

-snowy

 

Well I think they are pretty ugly. Hope no one is using them for ashetics.

Leupold is selling a lense kit to retrofit amber, red, and blue lenses. Mabey there is something to this.

 

May be not mistaking, but amber/light orange glass caps are used for optics when mist or fog is in air, for better clarity. My issued PSO came with orange-tinted filters, and issued binos had those too. I could not say they were extremely helpful, though. In theory, tinting all light entering the eye in colour somewhere between light-green and orange should maximize responce from receptors (rods) in the eye (as there are three kinds of cone cells and two of them have pretty similar sensitivity to different colors). I guess it was ugly glass of Made-In-Belorussia filter that messed such a brilliant idea :wink:

 

Leupold makes those little sets of different coloured lenses, don't they? Blue and yellow and stuff?

That and those big funky curved scopes that are shaped to fit your barrel so you can put a big frig off 56mm scope almost as low as a 40mm or something? Just saw those for the first time in person not too long ago lol.