Why does this ASET look like this?

[ecf8503]

What's up with the black in the middle?

 

[stone-cold11]

Aperture of the scope?

 

[ecf8503]

So nothing to worry about? Won't affect it's optical properties? Should it be red?

 

[stone-cold11]

Should not be. You can ask GOG to shoot a comparison video with it an a similar size H&A RB if you are interested.

 

[ecf8503]

Thank you, Stone!

 

[Rhino]

It's a mixture of blue/red.