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Lunt Blocking Filter - Check yours, you won't regret it!
By
alanjgreen, in Observing - Solar
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By Davenn
The Sun today - 07 May 2019 0130UT (1130 AEST)
Lunt LS60THa single frame exposures with an ASI 1600MM
AR2740 with AR2741 just coming around the limb
This last one using a Televue 2.5x Powermate
cheers
Dave
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By jambouk
I am thinking of getting a Lunt 50mm scope. I want to image as well as observe. I am thinking I could put my ZWO on the scope and capture video. My question is, does focal length in a solar scope relate to the FoV as it does for a non-solar scope? The field of view calculator (http://www.12dstring.me.uk/fovcalc.php) suggests I could just about get a full disc with a focal length of 350mm (the 50mm Lunt), but not with a focal length of 500mm (the 60mm Lunt). Is my logic correct?
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By Owmuchonomy
For sale is my Lunt LS60THa/B1200FTPT Ha scope. The scope is in MINT condition in the original flight case as it came from FLO. This is the Pressure Tuner version also with the B1200 blocking filter allowing for a larger field for observing AND imaging. It is also equipped with the magnificent Starlight Instruments Feathertouch focuser with 1.5" travel and 10:1 reduction which makes focussing for imaging cameras so sweet. The diagonal comes ready equipped with the T2 camera connection. Pick up here near Harrogate is possible or I do also have the original LUNT packaging so it can easily be picked up by the courier of your choice at your risk. I can provide box weight and dimensions should you wish to do so.
£1940 by bank transfer please. This price includes the ADM dovetail and Televue Sol Searcher I purchased as extras. If you don't want these items then deduct £40. Pictures below including some images taken using this scope and a ZWO ASI 174 Mono camera.
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By tooth_dr
I pointed my solar telescope at a small prominence in the hope that it would do something whilst I imaged it. Because I am new to solar imaging I don't know whether this is particularly lucky, or if it's something that's easily caught. Over the space of about an hour I captured 18 videos, each of 1000 frames, using a mono DMK21. I stacked 10% of the frames, and then manually went about aligning and cropping the 18 stacked images because ImPPG didn't like to do it for me. I also took an image of the solar surface, just to get rid of the white in the image, and add something visually interesting to the solar disc. I used a curves adjustment to make it orange, and then made a movie in MS Movie Maker.
Hope you enjoy it!
solar_prominences_long.mp4 -
By Davenn
The Sun in Ha 21 Apr 2018
Absolutely crap seeing conditions... even the "blue" parts of the sky between the cloud gaps had a high haze.
Nice new active region (AR2706) with spots and a nice prominence showing a large detached section
Lunt LS60THa, ASI 1600MM camera and Sharpcap capture software
Full Disk
AR2706
Prominences and nice large detached section
(haven't seen one that well detached before)
Dave
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