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Category Archives: PhotosbyKev
Solar H-a Image Processing
Most H-a images of the sun are captured with either a DSLR, webcam or a more specialised CCD video camera connected to a telescope or camera lens with the appropriate solar protection. This post looks at the process of taking … Continue reading
Posted in PhotosbyKev
Tagged 4" f/11 refractor, DBE, Deconvolution, Dynamic background extraction, Gradient removal, H-a, image processing, LOHA, Lyra Optic, PixInsight, Registax, Solar, Wavelets
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PST Solarscope Modifications
The Coronado PST Solarscope is an excellent instrument for viewing H-a solar activity and lends itself to some radical modifications to increase focal length and aperture resulting in significant improvement in resolution and visual/imaging quality. With the expert help of … Continue reading
Posted in PhotosbyKev
Tagged 4" f11, Baader, Baader D-ERF, BF-10, BF-15, BF-5, BICO Engineering, Blocking filter, Borg, Borg Helical Focuser, Borg Helical Focuser M - M68.8 - Part #7835, C-ERF, Celestron, Celestron CG5-GT, coronado, Crayford, D-ERF, Energy rejection filter, Fabry-Perot Etalon, focuser, H-a, HandsonOptics, Helical Focuser, Hutech, Lyra Optic, Lyra Optics, PST, PST Mod, PST mods, PST Stage 1, PST Stage 2, Refractor, solarscope, Teleskop-Service, TS
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Ffestiniog Railway – Tan y Bwlch
A few images taken with a Samyang 8mm fisheye lens on the 29/09/11 at Tan y Bwlch railway station on the Welsh Highland railway
PST Solarscope motorised focus
A simple mod for the Coronado PST Solarscope to motorise the focus so I can keep my hands off the PST Solarscope during the critical setting of the focus. It’s important to say that the PST Solarscope is completely unmodified … Continue reading
Posted in PhotosbyKev
Tagged astronomy, Astrophotography, Baader Hyperion, CCD, coronado, DBE, DMK 41AU02.AS Mono, DMK41, Gradient removal, H-a, h-alpha, Hydrogen alpha, Merlin, PixInsight, PST, Solar image, solar prominence, solar system, solarmax, solarscope, sun, telescope
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Cemaes Bay – RNLI 2011
The RNLI day at Cemaes bay on Anglesey in North Wales took place on the 14th of August 2011. On display was the local lifeboat with support from the Coastguard, local safety patrol and the Charles Henry Ashley lifeboat. Photographs … Continue reading
Posted in PhotosbyKev
Tagged Cemaes, cemaes bay, Cemaes Bay Harbour, Charles Henry Ashley, lifeboat, RNLI
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Lee Big Stopper ND Filter
A visit to Coed y Brenin and a walk around the Forest Garden, part of the Glasdir Copper Trail, gave me an opportunity to photograph with the Lee big stopper neutral density filter on a Canon 5D MkII camera. The … Continue reading
PST Solar Imaging
The photographs below show the sun in the Hydrogen-alpha (H-a) bandwidth using a PST Stage 2 Lyra Optic 4″ f/11 refractor modified for H-a imaging captured with a DMK41 mono CCD camera and sometimes a 2.5x Powermate for the closeup … Continue reading
Posted in PhotosbyKev
Tagged astronomy, Astrophotography, Baader Hyperion, CCD, coronado, DBE, DMK 41AU02.AS Mono, DMK41, Gradient removal, H-a, h-alpha, ha, Hydrogen alpha, Lyra Optic, Merlin, PixInsight, PST, PST Stage 1, PST Stage 1 modification, PST Stage 2, PST Stage 2 modification, Solar image, solar prominence, solar system, solarmax, solarscope, sun, telescope
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The ISS
The International Space Station (ISS) can easily be spotted with the naked eye and can be photographed fairly easily. Because of its size (110m x 100m x 30m) it reflects a lot of sunlight. The International Space Station webpage on … Continue reading
Posted in PhotosbyKev
Tagged Calsky, Heavens-above, Internation Space Station, ISS, Solar Transit
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