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laser_jock99

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Everything posted by laser_jock99

  1. Yes- unfortunately Photobucket pulled the plug on free, third party image hosting. At a stroke I (an many millions of other users) lost about seven years of illustrated forum posts. Hundreds of millions of forum posts across the internet suddenly became more or less meaningless as the accompanying photos were gone. I was quite upset about this since on this forum and a few others I had published many 'how to' posts which had more or less become reference threads- now utterly useless...... Photobucket offered everyone the chance to restore third party access for a mere $499 per year (bargain eh?). Needless to say I wasn't going to be blackmailed. The number of Photobucket users has plunged to negligable levels- I'm back on Flikr now. Anyway- rant over. I'll re-link to some of the 'lost Photobucket images' on Flikr. GSO 6" F4 besides the GSO 10" F4- as you can see it's an altogether lighter, more portable instrument. GSO 6" F4 with DSLR mounted Detail of the sturdy 2" focuser The rear mirror cell- which as usual benefits from upgrading the factory fitted springs. View down the main tube- at F4 the secondary mirror is quite large. In use- typical set up I'm using, GSO 6" F4 with DSLR and Altair Starwave ED80 as the guidescope. All mounted on an EQ6. Some images taken with the GSO 6" F4 Newtonian (images indicated at F2.9 used a ASA Keller 0.7x coma corrector/reducer). NGC7000- GSO 6" F2.9 Newtonian, stack of 5x 160s subs @ ISO3200, Fuji full spectrum DSLR. Rosette Nebula- GSO 6" F4 Newtonian, stack of 4x 60s subs @ ISO3200, Fuji full spectrum DSLR. M45- GSO 6" F4 Newtonian, stack of 6x 180s subs @ ISO1600, Fuji full spectrum DSLR Christmas Tree Cluster- GSO 6" F2.9 Newtonian, exposures totaling 1980s @ ISO3200, Fuji full spectrum DSLR Horse & Flame- GSO 6" F2.9 Newtonian, exposures totaling 840s @ ISO1000, Fuji full spectrum DSLR
  2. A second hand EQ6 goto would fit the bill- you should pick one up for around £600 used. Plenty of capacity for a 120mm refractror and more. Don't rule out goto mounts- in my experience they save so much time finding targets!
  3. Already -1c and clear here (Warks) might go out again tonight.
  4. Clear here (Warks) only have my trusty 10x50 bins here, but hoping for a hour or two's viewing later.
  5. LOL. The standard Skywatcher EQ6 is capable of an ED120- a positively lightweight scope in fact! I've been running a 35kg 12" Newtonian on an EQ6 for years. It does 600 second guided subs routinely. An EQ6 will therefore handle the combined weight of an ED120 (6.5Kg) & Mak180 (7.5Kg) with ease.
  6. A 120 mm frac can do longer FL views something that a 70 mm can't.......
  7. Beats my observing record -26c in the Welsh mountains (2010). Have to say that was a very cold session mainly due to the wind. I gave up after 30 minutes the binoculars were way too cold- so I admire your 3 hour stint.
  8. About 3-4 inches here (Warks) but turning a bit slushy although th forecast is clear for tonight so might get some observing in? Was planning to drive to Wales today- that idea has gone out the window. I forsee a nice pub walk today instead!
  9. Just started snowing now (Warks).......might well be deep, crisp & even by morning.
  10. If it helps - it took Warwickshire CC about a week and a half to fit two shades to new LED lights overlooking my back garden after my complaint via FIX MY STREET. The structural integrity argument is clearly b******s, but now they have said it they can't go back! Worth pointing out though every other council has no issues fitting these shades. You'll find the luminaire manufacturer has a range of pre-made shades for the lamps and the fitting holes are often pre-drilled in the newer LED lamps.
  11. Glad you saw something- horizontal rain all night here (Warks) has only cleared a t dawn.
  12. Great image- where was the shot taken?
  13. One the advantages of building an obsy from scratch (rather than using a converted shed/comercial obsy etc) is you can design security in from the start. Things like making it look vaugely like a normal garden shed, sheet metal walls, a solid door frame, a proper exterior door with built in mortice locks etc.
  14. IMHO a law should be brought out stating direct lighting should not be visible from any direction (including upwards) outside of the property it is lighting. Also it should be switched off if not in actual use. We can but dream........
  15. The Witches Head is a tough one. I'v never been 100% happy with any of my attempts for one reason or another. Due to low altitude and increasing levels of blue (LED streetlight) pollution, it really needs a dark southern horizon. With my reflectors the nearby, bright blue star Rigel often causes flare issues even though it's out of the FOV. In this case the extra contrast of refracting scope might be the way forward?
  16. The downside is the coma corrector is 3x the cost of the basic telescope! The plus side is it only 1/4 the imaging time. I once did a challenge to see how many DSO's I could 'bag' in a single session from my dark sky site. Twenty targets typical exposure ~600 seconds or less with 6" F2.9 Newtonian.
  17. The ED80 is piggybacking on my 10" F4 in the photo above- I use a lighter guidescope (the standard ST80) on my obsy rig to keep the weight down a bit 1.5kg vs 3.25kg for ED80). To turn an F4 Newtonian into an F2.9 instrument you need an ASA Keller 0.7x coma corrector/reducer. Needless to say at F2.9 every thing needs to be spot on collimation wise. In theory though, the corrected circle covers an APS-C sized CCD.
  18. The SW ED80 also makes a good guidescope for a 'proper' scope!
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