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Found 13 results

  1. After reading the Sony star eater story I abandoned the brand and looking elsewhere. I used to be a nikonian/touched canon bodies only a handful of times but that should not bias my decision for the future. Any arguments for choosing one or the other? In this quick review they came up more or less even. I would like to monochrome-mod the camera and add a cold-finger-type cooling as well. And I know, there are cheaper mono astrocameras, like the asi1600mm-c arund, but that tiny creature covers only 1/4 of the frame of the 6D/D610. Full Frame CCD's are way too expensive for my budget except a few KAI-11002 based 2nd hand unit, but that piece of hardware has so low QE (H-a: 30%) and so high noise, that a microlens-stripped DSLR might fare better... (and still significantly cheaper) From my side: For canon: - I have a sigma ART 1.4/20 for EOS lens, currently used for videography but could make a great timelapser. - Canon has a somewhat shorter flange distance - in case I have space issues, abovementioned review quotes vignetting, due to the smaller throat diameter (nikon: 44, canon 54mm) - this is a topic in my case, I plan to use a Riccardi reducer on my apo scope. -Canon is broadly supported by the astrophoto community, has magic lantern firmware mods (whatever that means for astro...), etc. For nikon: -I do have and will keep my astro-modded D5100 for the time being. This means two sets of adapters.
  2. I was wondering has anyone converted his/her dslr or mirrorless camera for monochrome imaging? This looks interesting, I was just wondering about the real gain, putting it differently, how much do we loose on microlenses, which come off alongside the Bayer array. I'd be interested in side-by-side shots, under the same conditions: B&W and Bayer version.
  3. I have been wondering, which is the better solution? The A7s and the dedicated ZWO ASI1600mm-cool astrocamera costs roughly the same. Leaving the A7s' Bayer array in place (of course removing the ICF) results that the effective light collecting area for H-alpha is ~1/4th of the total sensor area (~860/4=215mm2). The lucky thing is, that both the Bayer transmission and the cmos sensitivity is great at 656nm. Thanks to the unlucky transmission curves of the green and blue pixels, O-III at 500nm also takes a toll: here we are blessed with 3 pixels of the array (G+B) but both G and B filter components absorb around 50% here! Effectively in O-III, the a7s acts as a 322mm2 area monochrome camera. Considering that the Zwo has better cooling than the a7s can practically ever have (unless one completely disassembles it and sticks a dual-stage peltier on the sensors back), less-than-ideal transmission of the bayer filters AND camera-independent factors, like vignetting (depends on your scope and optical train), I would say the Zwo is at least equivalent if not better than the fullframe a7s. Meaning, that if you want to cover a certain LARGE area, you get there at the same time with mosaicing. However, if you target one object which fits the Zwo's field than it should be clearly superior, delivering the same results at ~1/3 exposure times. Does my line of thinking make sense? Can someone support it with experience? Monochrome modding of the A7s could be another step, however that kills the microlenses and results in a 20-30% light loss + costs a fortune if done professionally or plays Russian roulette with your wallet if you try scraping off the Bayer yourself.
  4. From the album: DSO, Nebula, Galaxies, Comets etc

    M27 The Dumbbell Nebula in Vulpecula Imaged on 17.09.2016 using Skywatcher Equinox 80 ED Pro and Atik 16IC-S monochrome CCD camera 8 x 300 second and 8 x 420 second exposures stacked in Deep Sky Stacker and cropped with light processing in PS Elements 11

    © vicky050373

  5. Vicky050373

    M13 30-04-2016

    From the album: DSO, Nebula, Galaxies, Comets etc

    M13, also designated NGC 6205 and sometimes called the Great Globular Cluster in Hercules or the Hercules Globular Cluster, is a globular cluster of about 300,000 stars in the constellation of Hercules. Imaged using Atik 16IC-S monochrome CCD and William Optics FLT-110 mounted on NEQ6 Pro. 30 light frames ranging from 60 seconds to 600 seconds, no darks. Stacked in DeepSkyStacker, using the best 80% of frames and processed in Photoshop CS2

    © vicky050373

  6. From the album: Lunar and Planetary Images

    Taken using Williams Optics FLT-110 refractor and Imaging Source DMK21AU04.AS Monochrome CCD. Video stacked in RegiStax6. The crater to the lower left of the image is Copernicus.

    © Vicky050373

  7. I am looking for a monochrome conversion service for a Canon 6D, tried JTW, they don't work on 6D's
  8. From the album: DSO, Nebula, Galaxies, Comets etc

    Galaxies M65 & M66 which are two of the Leo triplets, the third being NGC3628 which is not in this image M65 (bottom left) and M66 (top right) lie approximately 35 million light years away in the constellation of Leo A total of 11 x 300 second subs stacked in Deep Sky Stacker and processed in PS Elements 11

    © Vicky050373

  9. Vicky050373

    M13 30.04.2016

    From the album: DSO, Nebula, Galaxies, Comets etc

    M13 the Great Globular Cluster in Hercules imaged 30.04.2016 using Atik 16IC-S monochrome CCD and William Optics FLT-110 mounted on NEQ6 Pro. 30 light frames ranging from 60 seconds to 600 seconds, no darks. Stacked in DeepSkyStacker, using the best 80% of frames.

    © vicky050373

  10. From the album: Solar Images

    Stacked and processed image of AR12529 taken using William Optics FLT-110 refractor, 1.25" Lunt Herschel Wedge, Baader 7nm H-alpha filter, Celestron X-Cel LX 2 x barlow and QHY5L-II Monochrome planetary camera. 1000 frame AVI processed through PIPP to select the best 50%, then through RegiStax6 to stack and add wavelets.

    © vicky050373

  11. From the album: DSO, Nebula, Galaxies, Comets etc

    Using Atik 16IC-S monochrome CCD on William Optics FLT-110 F7 refractor, guided with QHY5L-II camera 14 x 120 second subs, stacked in DSS and cropped and processed in PS Elements 11

    © Vicky050373

  12. Aenima

    Jupiter mono

    From the album: 2013/2014 planetary

    Mono chip - lu070m

    © Aenima

  13. From the album: Solar Images

    The Sun with active region AR2651 23.04.2017 William Optics FLT-110 and QHY5L-II monochrome camera 800 frame AVI with best 50% stacked in Registax6 and slight adjustments in wavelets

    © vicky050373

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