This feint prom was imaged with a c9.25 + Daystar 250mm ERF + Televue 2X Powermate + Grasshopper3(2.8mm) with bad seeing.
Here's a suggestion for Quark Combo owners if you have cameras that suffer from Newton's rings. This Quark came with an adaptor to tilt the etalon to ensure that light coming in from an off axis ERF hits the etalon at right angles. It's not necessary for full aperture ERFs.It's meant to accept the Quark Combo and has a small fixed tilt angle. I tried using it on my Grasshopper3 which suffers from Newton's rings by inserting the camera into it.
It seems to work for both the Grasshopper and the ASI174. It likely will not work with every camera but worth a try. (It didn't work with my Flea3.2).
Lou
Prom from May 20, 2017
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Re: Prom from May 20, 2017
Nice close up there Lou! Useful tip with that Daystar snout too.
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Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!
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Re: Prom from May 20, 2017
Nicely done, Lou. Lovely capture.
Stu.
Stu.
H-alpha, WL and Ca II K imaging kit for various image scales.
Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
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Re: Prom from May 20, 2017
Nice prom image Lou. I have a few coronado etalons but I have not yet considered buying a Quark...
Pedro Re'
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