Ist quick, lunar snaps from iStar 150/10 H-a.

[Rusted]

iStar 150mm f/10 H-a. Beloptik KG3 & Baader 35nm H-a. ZWO ASI174MM. SharpCap, iMPPG, PF7.

 

[Peter Drew]

Nice "sepia" colour, was the D-ERF still on?       😀

[Rusted]

20 minutes ago, Peter Drew said:

Nice "sepia" colour, was the D-ERF still on?       😀

Thanks Peter. The colour choice is to provide a historical look to match a classical, refractor ethic.

Interesting that you should ask that very question: The moon was easily visible through the external D-ERF but I still removed the filter.
I haven't tried lunar imaging through it [yet] but do leave the 2" KG3 and 35nm H-a [etalon protection] filters in place.

The lens is corrected for H-a red. So leaving these 2" filters in place seems not to matter. They merely reduce IR and UV.
The ASI174MM camera is mono so doesn't care about the blood red image colour. It is still lightning fast on the moon. 3-400fps.

I had another clear session yesterday evening. The seeing was boiling furiously on the smallest scale!
The videos looked awful! I'm trying very hard not to overcook the processing: Still too bright in the highlights:
Here are three more quickly processed 'snaps' from last night 5:3:20 before the cloud arrived, on cue at 8:00, in time for dinner.

 

[Peter Drew]

Very nice resolution despite the conditions, roll on a good night!.  I have often tested ERF's for quality by observing the Moon through them, the redness seems to enhance the crispness.   😀