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CraigT82

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CraigT82 last won the day on March 5

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About CraigT82

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    Bristol
  1. Having had this scope a couple of weeks now and having used it a couple of times I can offer some thoughts. Though there's not much I can write about this scope that hasn't been written before. Very first impression is how nicely it's built. The paint finish is a lovely high quality pearlescent white, with the brushed aluminium look trim and nicely anodized focuser and tube rings, it's a really good looking scope up close. The long dew shield moves up and down smoothly and has a locking screw. The tube has nicely blackened baffles and the inside of the dew shield has a nice matt black paint too.... Coupled with the excellent AR coatings it makes it difficult to see anything down the tube. A Cheshire eyepiece test reveals only one reflection from the objective lenses, I can only assume this is because both reflections are on top of one another, so the lens cell appears to be nicely engineered with well aligned lenses. The focuser itself is very well engineered with a smooth action and lots of travel. Using a laser in a HG parallizer the spot exits the front bang in the centre showing that the focuser is properly aligned with the optical axis. Though using the supplied 2" to 1.25" adapter the spot is slightly off, nothing to worry about though. Annoyingly my 30mm vixen NPL won't focus without pulling the adapter and diagonal out a little (1mm each), Maybe the tube was shortened sometime in the past!? Again nothing to worry about really, just a minor annoyance. In use the scope is easy to balance and the long length makes pointing and tweaking the view very easy on the az4, the length of the tube providing a nice lever with which to move around the sky. I haven't seen much through it but What I have seen I'm pleased with. Mars tonight showed a faint hint of syrtis major and some evidence of a south polar cap at 224x though the disc is getting pretty small now, and the moon showed crisp detail with only a hint of CA around the limb (see pic straight off the phone with no edits other than a crop) though It was a bit hazy which dimmed the image somewhat which could have toned down the CA a bit. Turning to the double double and working up through the mags I achieve a dark line between each pair at approx 140x. My f7.5 newt will achieve this split at 90x, though the image of the stars is more aesthetically pleasing in the frac. Snapping smartphone pics ain't too easy as even with long fl eyepieces the f11 ota means the exit pupil is small, compared to the faster newt. It's really nice not having to worry about cooling and collimation! Just plonk it down and away you go. Compared to my big long newt this frac is so simple and user friendly that I can tell it's going to get a lot of use both at home and away, and with outreach. It takes literally 2 mins to get it out the garage and start observing. Using it on the AZ4 is fine in still conditions, I've had it up to 224x without too much vibration, though I expect the wooden tripod helps with that, a bit of wind catching the long tube though and the image starts trembling. That's about the sum total of my thoughts so far, will add more to this thread as I get more usage out of the scope.
  2. CraigT82

    Lunar altitude.

    Not ignorant at all... thinking about this and trying to visualise moon/sun/earth etc.makes my head hurt!
  3. CraigT82

    Wooden Tripod Legs

    Haven't seen an old 5p coin like that in years!
  4. CraigT82

    TAL 1

    I guess we need to ask what sort of observing floats your boat? Planetary/lunar, deep sky or bit of both? The fracs will give you a touch of CA on planets and the lunar limb (and bright stars), whereas the newt will obviously be colour free. How do you feel about CA? The obstructed 114mm aperture of the newt is approximately equivalent to the unobstructed 100mm of the fracs, so no real advantage for the newt on deep sky. The newt's FL is only a touch shorter so FoV is much the same as the fracs. I'm thinking it might come down to ergonomics really, do you prefer standing beside a newt or sitting behnd a frac?!
  5. CraigT82

    Do I need the Baader Cloth?

    You really think most people who buy this stuff are swayed by its 'wonderous' name, rather than the positive reviews it gets from hundreds of users?? You obviously don't think a lot of your peers in here! Personally... the time taken to source, mix and test the constituent ingredients is worth more than the puny cost savings, and hence not worth the effort.
  6. CraigT82

    Sticking sensor to primary mirror

    Very good point! This could work, just applying silicone round the edge of the sense to hold it in place. I'll give it a try. Don't really want to try the thermal adhesive, seems tobe very strong so might pose a problem when the time comes to get the mirrors recoated .
  7. CraigT82

    Sticking sensor to primary mirror

    Sorry meant thermal adhesive not thermal paste, found some on Amazon but do t wanna spend £6 on it if it won't stick to the glass! It's a temp sensor, so do t think a blob of silicone will work as it'll act as an insulating layer. I think I may have sorted it anyway, I've wedged the sensor between the mirror edge and the tube wall... used a thin slicer of wood to wedge it in tight so that there's good contact between glass and sensor. Just need to see if it falls out at all
  8. CraigT82

    Sticking sensor to primary mirror

    I did think about that but thought that the silicone would act as an insulator between the glass and sensor. Also thought about the thermal paste for CPU heat-sinks but not sure if that will adhere to the glass
  9. Hello, im trying to attach a wired temp sensor yo the back of my newt primary mirror. The mirror has a satiny surface and I can't get anything to stick to it! Ive tried various sticky tapes but no joy. Anyone any tips on what to use to stick the sensor to the mirror? Cheers
  10. Those jigs for positioning the new focuser are genius! Are they 3D printed or turned on a lathe?
  11. CraigT82

    m45

    That is a beautiful image.... I'd definitely print and hang that if it was mine!
  12. CraigT82

    Show us your Frac

    I'm also a little bit in love with my new 102mm f11(starwave). Only had it out once so far and it served up lovely crisp views of Mars in less than ideal conditions. Yesterday I checked focuser alignment with a laser and it was dead on using my HG parallizer (though slightly skewed with standard adaptor). Also checked objective alignment with Cheshire and again dead on. Very well made these scopes are! The AR coatings are first rate too. How do you find it on the AYO without counterweights? I've got it on an AZ4 which is fine in still conditions but a bit of wind makes the image tremble. Will be upgrading to giro type mount I think.
  13. I used to own the Opticstar AR90s (90mm F5.5 - same as the Omegon version). It made for a great rich field scope. Build quality was good but the scope weighed very little, less than 3kgs if I remember correctly. I used to hold it up to my eye like a monocular with a 32mm panaview and just sweep up and down the milky way. I'd doubt you need a finder on it as with a widefiled EP it gives a huge TFoV. Maybe just a rigel quickfinder would be sufficient?
  14. Those images show good potential I think, to be honest I feel that rather than upgrading your OTA, you'd be able to get better images with lots of practice and spemding time learning to use your 224mc. Also some practice with processing will reap benefits.
  15. What planetary/lunar images have you got so far with your current setups, can you post them?
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