Astro-Physics StarFire 155mm EDT f/9
Refractor

The above shot shows the effect of aiming a green
laser through the AP155EDT's lens.
The brighter segment on the left is the ZKN-7 element followed by a
dimmer segment of
FPL-52ED
glass and
then another brighter section of ZKN-7.

Super EDT design, Oil spaced triplet. Coated air
to glass surfaces. |