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DaveGibbons

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Everything posted by DaveGibbons

  1. Hi all, I am after a William Optics 6mm SPL eyepiece in good condition. Optical surfaces need to be in excellent condition . Needs to have end caps but not bothered about box. If you have one lying around that is not used much please let me know. A fair price paid !Payment would be by bank transfer . Regards Dave
  2. Hi All, Due to synscan upgrade of my Heq5 mount I have sitting around the original fully functioning non goto drive system . Includes everything . Hand contoller, dual motors, circuit board , gears and power switch casing. No issues all in good working order. Price is a bargain £35 , just gathering dust ! includes first class recorded delivery. Cheers Dave
  3. Hi All, I am selling my completely as new Skymax Pro 180 mak Purchased new from FLO 6th Nov last year so just over 4months old. . Bought it on a bit of a whim as had spare cash burning a hole in my pocket and it was one of the few scopes that was in stock briefly at end of last year. Personal circumstances have changed for me and I need to sell. It is completely unblemished and pristine , has been be used twice only and was stunning on binoviewed moon - main purpose I bought it . In fact it is better than new as I have fitted a new Baader clicklock adapter to rear cell to replace visual back. It comes with all original accesories of :- 9x50 RACI finderscope 2" Skywatcher Diagonal original visual back 9mm and 25mm 1.25" eyepieces. I do have all original packaging but sorry will just not risk posting optics, so will be socially distant collection rules permitting. Images show it mounted up with my W/O diagonal that is not included! For any OCD members I would like to point out that if you zoom in on the front facing image you will see a white paint mote at bottom of the image. This is nothing more than a small paint fleck that is trapped at edge of the meniscus when built in the factory. It is not in the optical path as it is between meniscus edge and tube seal . Collimation is excellent and once cooled down gives superb performance. I would just like to say a bit about "Cooldown" with these big Maksutov's. If you store it in a centrally heated house and bring outside then please note it can take 3-4 hr's to give it's best images ! I keep the OTA in an unheated conservatory and It still can be 1-2 hr's before it is in perfect thermal equilibrium and gives very best views. So in reallty an unheated garage/shed/ conservatory or well planned early placement outside is needed. It is definitely not a grab and go scope! They are fantastic performers once in the zone and give excellent views of compact cluster's double stars and lunar/ planetary viewing. Skywatcher price's have recently gone up and that is if you can even get one . I am selling at £690 a fair price I think for what is a new scope. Please no offers as that is it. Collection from Southport in the Northwest. Any questions please ask. I would normally be happy for anyone to pop round and inspect or even view through the scope but unfortunately times are far from normal. Regards Dave
  4. Hi , I am looking for a Skywatcher 180 mak OTA. It needs to have a standard SCT thread on back of cell , so it will be a more recent version. Optics need to be in first class order and in perfect collimation . Not so bothered by tube cosmetics or a little dust on optics . Not in any particular rush but if you are considering selling your's please let me know. Perhaps you are thinking of trying one of the new Lyra Classical Cassegrain scopes and want to sell your Mak ! I can collect if in reasonable distance of North West subject to whatever Covid rules being followed on that day . PM me or drop me a text on <private contact details removed> Regards Dave
  5. Hi, I don't think that is acceptable even though a little dust makes no difference to optical performance it would bug the hell out of me! I don't think it is representtive of what to expect from a premium Skywatcher product from a state of the art optical manufacturing facility(so we are told). regards Dave
  6. Hi all Reduced to £550 ! An absolute bargain . If you want a 12" light bucket what you waiting for ? It's truly an as new scope! I will run ad just a few more days as really wavering on selling at all, I will just put away till dark skies arrive. Cheers Dave
  7. Hi Ron, Nah nothing on the horizon .I still have a nice 5"Apo . I am uncluttering my life a bit . I am happy with occasional short viewing sessions these days and spend most of my time with double stars and lunar onservation . I may spend the proceeds on a new mount although my old non goto (gasp) heq5 still performs well and after 45 years observing I can just about find Polaris ☺. But you cant beat aperture for the showstoppers ! Cheers Dave
  8. HI Sannerz , Sorry for late reply ! No deposit needed . You are welcome to view the scope if you wish. Views are subjective anyway and fainter deep sky objects depend to a great degree on how dark your sky is . You can see some hints of structure and detail in brighter galaxies but as I say depends entirely on your sky conditions . From my suburban garden the views of showcase items like Orion Nebula and globular/open clusters fantastic and can see hint of spiral structure in M51 but most deep sky objects are just brighter and still grey without colour . Unless you go really big on aperture 16" plus faint objects are still just that faint objects.! cheers Dave
  9. Reduced to £590 for SGl only. Will be going on Astrobuysell later today at original price. Regards Dave
  10. Hi all, I have for sale my immaculate meade lightbridge 12" Truss dobsonian. It is less than 2 years old and comes with all the sensible upgrades. This is the latest version with dual speed crayford focuser and blackened truss supports. Everything is in pristine as new condition. The optics are in superb condition just a couple of tiny dew spots you would expect from normal use. It has been upgraded with Farpoint collimation knobs and heavy duty springs on the primary and holds collimation far better than the originals did. A full set of Farpoint balance weights 3x1lb and the additional 2 lb slip on weight. This honestly makes getting perfect balance of the tube a dream no matter how heavy an eyepiece set up you use. I have owned several Skywatcher flextube dobs and the motion of my lightbridge with the balancing weights is so much nicer. Astro engineering dew shield for main truss body also a homemade but very effective lightweight dew/light shield for end of tube. Oh and a nice lightweight shower proof cover for the whole assembly. I will include an as new 2" Hotech self centering laser collimator to aid set up , it is incredibly accurate and easy to use. Scope comes with all the original factory accesories , excellent quality RDF finder , 2" eyepiece and 35mm extension tube for focusser. Built in fan on main mirror uses a small battery pack included. The scope can easily be broken down for transport or if you struggle with too much weight , in one lump it weighs 80lb . I can put together in less than 10min but in reality I leave it assembled in an unheated conservatory and carry out rocker box and tube assembly in two parts. Please note if you are relatively new to this hobby and never seen a 12" DOB they are big ! But performance wise you just cannot beat aperture and it gives really pleasing views of deep sky objects , globular clusters are stunning and Messier objects start to resemble what you think they are ! if you view the moon with it is absolutely jaw dropping! Unfortunately for me even my back doth protest these days and I am reaching more and more for my small refractor in the not so dark skies that are my garden. Originally over £1500 spent on this lot and I am asking **£550**collected from my home in Southport , Merseyside. First to see will buy as it is in better than new condition and all mods enhance the viewing experience. Please note I am not in any particular hurry to sell and I would actually consider a swap for an immaculate neq6 mount as they would be of comparable value 2nd hand. If you have any questions please ask and you are of course welcome to come and view if local enough. As always I will delay putting on astrobuysell as would prefer this fine bit of kit to go to an SGL member . I attach some images from my so so phone. Cheers Dave
  11. Hi All, Selling my Altair lightwave premium 2" dielectric SCT diagonal. All boxed and pristine . Bought new by me in October 19 . Used 3 times and no longer needed as scope sold . Is as brand new off the shelf . Paid £99 from Rother Valley Optics. Selling for £65 includes first class recorded delivery. Fits later Skywatcher maks as well as SCT . I wii accept paypal as well as bank transfer . Drop me a PM if interested . I will put on ABS if no takers this weekend. Cheers Dave
  12. Very true! I just informed my long suffering wife what is coming . She just smiled and said " life is short " , probably means mine !
  13. Hi All, I will let this go to any SGL member for a reduced price of ***£300****! It is an absolute bargain . I will not be offering at this price anywhere else and I would prefer one of the SGL members to get it. As new, it is optically and cosmetically perfect . Will probably come to my senses and decide to keep it shortly ...Depends how better half reacts when I walk in with 12" dob I just purchased, yes I have a scope addiction ! Merry Christmas all ! cheers Dave
  14. Hi All. I have an immaculate as new Skywatcher 150 Maksutov for sale . It has been used 3 times from new and is perfect and unmarked. Latest version with green dovetail and rear cell compatible with standard SCT accessories. It comes with a new Astrozap dew shield and new Bahtinov mask. I have star tested and collimation is perfect and optics excellent. Comes with standard accessories of 9x50 finderscope an excellent 2" Diagonal that does not need upgrading and a 28mm 2" eyepiece . Only issue with these scopes is cool down the only reason I am selling . I have an excellent 5" apo refractor that cost over four times the price of the mak and they are in some ways similar in performance , the mak besting the apo on double stars once in thermal equilibrium . Reality is 9 times out of ten my observing sessions are unplanned and short so I will be reaching for the refractor. It can take up to 2 hours for the Maksutov design to reach thermal equilibrium and give best view if taken from a heated house like I have to do. These scopes have superb Lunar and Planetary performance and the Maksutov design just excels at splitting double stars down to theoretical limits. It's a nice compact package that sits nicely on an HEQ5 mount and above. Collection preferred in order to preserve it's perfect collimation, although I do have all the original shipping packaging and it has stayed perfectly collimated all the way from China so it It could be posted at your expense and risk. I can only reiterate the scope is in as new unblemished condition and optics star tested by me. You will be saving around £180 as with dew shield and Bahtinov mask costs for package is £540 new selling for £360. ****REDUCED TO £300*** I am in no hurry to sell and would be just as happy to keep scope but if some one is after one it's available. I am located in Southport on North west coast and as stated above ideally l would like scope to be collected . Any questions please ask and you are welcome to come and view scope and have a chat if in the locality. Just to confirm price is £360. *****REDUCED TO £300**** cheers Dave.
  15. Hi All , This will be a fairly brief comparison of 3 different diagonals I have had the opportunity to test in the same telescope over 2 nights and 5 hours observing . It is purely my opinion on what my eye's tell me whilst viewing a range of objects . It is not scientific or technical in any way and I was not intending to write this but thought someone may find it of interest! I recently purchased an as new Skymax pro 150 Maksutov . Technically second hand but it had never been out of the box in anger and never mounted or viewed through . It is the latest version with standard SCT threads on back along with the natty green dovetail. I always find “first light” exciting as all is about to be revealed . Will I be disappointed ? Will this particular set of optics be up to scratch? Will it do what is says on the tin? In particular I was keen to try it out with my Altair lightwave 2” sct fit 99% reflectivity diagonal. As we all all know the standard mirror diagonal is not the best , right? Many people have commented on this over a number of Astro forums and it is often stated as the first “upgrade” you must do. So out goes the scope about 5pm..Out of centrally heated house into near zero temperature . Figure minimum hour's cool down with this type of scope (it took over 2 hr's). Anyway first target I view is the double double using Altair diagonal. This is after an hour and I can still see the heat plume giving that distinctive wedge shape in out of focus intra and extra focal pattern although they are split well and I can already see despite disturbed view that the optics are excellent . I go back out at 8pm and all vestiges of temp difference gone , the scope is in perfect equilibrium now , so I can evaluate the optics. They are superb absolute textbook diffraction patterns on all four components and as always the Maksutov optics excel on double stars , time to chase down more and more difficult pairings. Delta Cygni next followed by the more challenging Lambda Cygni a sterner test. I am now at the limit of seeing condition and can split this sub arc second pairing but the fainter component is going in and out of that elongated smear you get when conditions are not perfect . I decide to just check with a straight through configuration that my Lightwave diagonal is as good as it looks and although requiring a contortionist pose I screw back on the original visual back and put in 1.25” adapter and 6mm orthoscopic eyepiece . Yup that diagonal is converting every photon and delivers all to my eye with absolutely no difference in view to straight through configuration . As the original visual back is now on I decided to use my William optics push fit dielectric just to see if any difference. I use the same reference doubles and pleased to say absolutely no difference in optical performance .It does sit slightly further back from the scope than the screw fit SCT but no issue with either. I now change targets and start looking at some of the tighter open clusters in Cygnus and Cassiopeia .The double cluster is just clearing tall trees and although all can't fit in the Mak's smaller field of view the stars are just pin prick jewels the deep reds of the old giant stars so beautiful , they are apo like. Anyway I am now starting to get cold so pop in for a cuppa and in my now cold conservatory sits the unloved original supplied diagonal. I decide to see just how much better my premium diagonals are so shove it outside for half hour whilst I get a warm. Back out and straight on it Lambda Cygni . The view is exactly the same ...no it's slightly better the fainter component occasionally showing as a star not a smear a clean split. Assuming seeing has improved I put William optics diagonal back in and yes it presents me with exactly the same quality of image and I mean exactly the same . I now go on a tour of all those objects previously viewed with the premium diagonals , not one iota of difference ! Nothing in terms of contrast, colour or resolution . My mind and wallet tell be there must be a difference, perhaps the good but less than perfect seeing is a leveler ? By now cold has got to me and early work in morning, session over. Next night is clear as a bell and I leave the scope and accessories in the unheated conservatory . All back out in garden at 4.30pm and start observing at 7.30 . Seeing is almost perfect . 3 hours later I can say without any shadow of doubt there is absolutely no discernible difference in optical performance not one iota visually on double stars, open clusters and Messier objects . I myself have had some really crappy quality diagonals with new scopes(mostly Meade and Celestron) but the OEM one that came with the 150 pro is excellent . Either I got lucky or Skywatcher have improved quality or perhaps the premium dielectric examples are a bit smoke n mirrors who knows ? Expensive means better right? Certainly aesthetically they are beautiful but I also rather like the rugged utilitarian look of the Skywatcher. Like I said at the start not very scientific and it may just be a case of my eyes not being able to see the minute differences between optical surfaces or maybe just maybe we convince ourselves expensive must be better . Blind testing anyone ! Cheers Dave.
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