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25585

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25585 last won the day on May 1 2018

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  1. Not just the sight, but knowing the whole is a supernova remnant is what I find so fascinating, the ghost of an exploded imploded star. And somewhere is the white dwarf or neutron star, all that remains of its core.
  2. Thanks John. The Ercole only needs to hold my 100 and 120 Equinoxes at most so not too extreme. I hope it's metal is harder than a Skytee's puck. For a counterbalance weight shaft, if a dovetail bar could be used with a shaft central and perpendicular, then it would only need to be clamped in, the necessary weight fitted, and no need for removing or adapting a clamp. Obviously a tough clamp such as ADM, and one with 2 or 3 locking plates.
  3. And bada-bing a MEF for Taks appears in classifieds... Can the Ercole be fitted with a Losmany D clamp each side?
  4. The extender and Barlow only yesterday, in-between clouds and loads of aircraft (RAF 100 coming or going maybe). More time with gear than observing. The Skytee 2 is only good enough for 1x 100mm scope really, it gets top heavy. I put the Equinox one side as heavier and Tak counterweighted on top clamp. Both focusers worked well, the SW has a microfocuser as OE, which was useful. Comparing the two same FL 100mm refractors was interesting. Equinox is heavier, closer to its 120 mate than its DL rival. Deeper dew shield. No trouble with cooling for either. Beyond 130x magnification hand guiding becomes tiring. Better with a dob as they seem more relaxing, but more focusing. Anyway Mars will be around for awhile I hope, that will test the red and contrast of SW and Takahashi.
  5. Both being 900mm F9. At lower magnification I could not see any constant difference but at higher say 100 to my max 150 or more, the difference is not so much CA as light transmission and possibly contrast I think, more noticeable across the FOV. For Jupiter, especially it's moons moving and surface shadow transit, the Tak has made it seem high definition, likewise separating moons from the planet's edge. I have given the Tax more use than its Equinox stable mate. Using 10mm XW, 9mm Morpheus, 8mm LVW and 7mm XW for both scopes, I ended up using the parfocal Pentax pair most. Their TFOVs are close to the other 2. Fitting my DL with Q 1.6x extender and the Equinox with an Altair 1.6x 2 inch Barlow, the Tak was literally clearer ahead. I have yet to try 2x Zeiss Barlow and ES 2x extender on both scopes. The diagonals I used were an Astro Physics Maxbright on Equinox and TV Everbrite on Tak. Lots more comparison fun ahead. ?
  6. 66 Equinox. More portable and lighter than the 80 Equinox. I have all 4 Equinox models now (AFAIK)!
  7. "New telescope arrived today" Baby Equinox brought by Parcelstork this afternoon. (Whole family photos to appear soon.) Bit of worry about its focuser tube being stuck, but all OK now. Like all Equinoxes, baby has a sliding retractable lens hood, rotatable 11:1 scaled Crayford focuser, ED lenses and beautiful black CNC tube with chrome trim. Metal slip over lens lid. Only takes 1.25 inch eyepieces. Fairly heavy but noticably less than my 80 Equinox. The tube feels robust in a Tele Vue way, apart from the focuser, which I may replace with a Baader Steeltrack.
  8. Snap with the extender ?, almost. SN : 2×2001520. Mine is a 50.8mm with a 31.7mm adapter. Heavy!
  9. Interstellarum atlas - I like it's presentation. "Pac Man Nebula", "Muscle Man (open) cluster" ES 2 inch 2x extender. Heavy! Weighs as much as a 35mm Panoptic, maybe a bit more. Certainly no Barlow & will require balancing compensation. Couple of Astro Zap tube end covers for my VX10L.
  10. Rather than a NP101, would a NP127 not be a fairer comparison between the two Takahashis and TEC 140. How should a Vixen NA140 SSF compare?
  11. Dear APM sent me the correct prism I bought in their sale already (I am off to post the other back shortly) Here is the correct one, a 2 inch roof prism diagonal mounted on my TV Genesis. 47mm clear aperture, no vignetting with my TV 55mm Plossl. Correct image, rotating ep lock and view as bright and clear as a dielectric mirror from both ends. My near end scopes have a day job now
  12. Compass would be more useful. Binoculars can have them. Actually an ep with compass built in view NSEW /alt azi/RA Dec would be good for star hopping and eyes-through manual guiding. Suppose it is possible with digiscoping if an on-screen digital compass app is running and displayed. I have tried a small mobile with a compass app running adjacent to my Telrad, which was quite good with auto rotate turned off. It ceased to be useful with dark sites that had poor or no signal. A small sat nav using continuing GPS, or orienteering watch with same would be better.
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