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Transit of Mercury in the Spicule Layer. Phil took this great image with his Quantum 6 Scope, Solar Spectrum etalon and PGR Camera.

Welcome to Solar Chat! The best forum for Solar Astronomy
Moving forward from solar cycle 24 to 25

Search found 54 matches

by RodAstro
Sun Nov 12, 2017 12:53 pm
Forum: This is SolarChat !!
Topic: multiple images
Replies: 25
Views: 2657

Re: multiple images

yep ghosting is a problem but I have found CPL filters can remove nearly all but these secondary images then the contrast improves, band pass I am not sure about yet, I am getting good prominences but surface detail is not good yet I can see some. Im not sure how good my seeing is and there is littl...
by RodAstro
Sun Nov 12, 2017 12:04 pm
Forum: This is SolarChat !!
Topic: multiple images
Replies: 25
Views: 2657

Re: multiple images

Yep thanks for the reply Mark that is the conclusion I am coming to. I have two sets of these and both are the same, although the reflections in one is slightly closer than the other. It is a pity the elements could not be separated and mounted separately then the reflections could be removed. What ...
by RodAstro
Sun Nov 12, 2017 10:02 am
Forum: This is SolarChat !!
Topic: multiple images
Replies: 25
Views: 2657

Re: multiple images

Ok simple diagram as it is a simple setup
by RodAstro
Sun Nov 12, 2017 12:17 am
Forum: This is SolarChat !!
Topic: multiple images
Replies: 25
Views: 2657

multiple images

Ha image 700mm inside.jpg Hi new to the forum I have been reading for a while and trying to glean info on the Omega H-alpha filters I have been trying to build a system using these filters and am having problems with the front filter etalon. It seems to have multiple images in one direction all the...