You would definitly want the kg3, probably the beloptic extended blocking version or the newport optic’s antireflection coated versionbart1805 wrote: ↑Wed Sep 19, 2018 8:54 pmThanks Bob and Apollo!
So the Lasky CaK seems to behave almost the same as a PST CaK. With indeed the big difference that if I wanted to buy a PST CaK I would have to be very lucky to be really able to buy one. The Lasky CaK costs about 1.300 dollar and requires tilt. So a Skybender would be necessary. Are they for sale Apollo?
A Baader Blue and KG3 can be used instead of the 1NM Chroma filter as Erf. Or as Apollo pointed out you could use a 402 NM filter.
Am I correct?
For the erf i would use a Baader planetarium b-ccd slightly tilted 2 degrees in front of the chroma so there are no back or front reflections and a baader planetarium polarizer at the camera to control intensity. That should be a perfect combination for a flawless system with maximum transmission and insane prominence capturing ability. That would be the cheapest route without sacrificing anything.
Let me test it out beofre you guys make the purchase, i would hate to be wrong about the b-ccd and polarizer combo. It looks great on paper however. The baader planetarium kline filter should not be used.
I only have a couple skybenders left in my possession, however 10 more are to be delivered from my manufacturer anytime now. They just completed anodizing.
The chroma 402 filter is recommended currently because i know it works great right now, but it needs to be mounted with tilt shims in a deep well barrel. You can buy the shims and deep well barrel from thorlabs or newport optics or file the shims by hand if you have suitable metal tubing and a dremel tool cut off wheel.
We will knock this ball out of the park together!
I will be leaving to colorado for a couple weeks so please be patient!