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One ZWO TC40 Carbon Fibre Tripod. Ex Demo Ex demo - used for a product review. Complete, good condition. Open box. Full manufacturers warranty. £342.00 £307.00 (saving £35.00)

One Sky-Watcher StarTravel 102 AZ-Go2 WiFi Refractor Telescope. Customer Return No longer required. Looks new and unused, good condition. Open box. Full manufacturers warranty. £379.00 £341.00 (saving £38.00)

One StellaLyra 8" f/4 M-LRN Newtonian Reflector with 2" Dual-Speed Focuser. Customer Return Customer was having collimation issues with this. We have tested in our workshop and collimation is fine and this is all working A-OK and as expected. Some slight dust present but not enough to warrant cleaning the mirror. Open box. Full manufacturers warranty. £499.00 £449.00 (saving £50.00)

One Dwarf II Smart Telescope - Deluxe Bundle. Customer Return No longer required. Good condition, working A-OK. Open box. Full manufacturers warranty. £519.00 £467.00 (saving £52.00)

One StellaMira 80mm ED f/6.25 Refractor Telescope. Customer Return No longer required. Fully checked and tested in our workshop. Good condition, complete. Open box. Full manufacturers warranty. £599.00 £539.00 (saving £60.00)

One ZWO SeeStar S50 All-in-One Smart APO Telescope & Tripod. Customer Return Customer changed their mind. Complete, in good condition. Open box. Full manufacturers warranty. £539.00 £485.00 (saving £54.00)

One William Optics Zenithstar 81 APO Gold. Customer Return Customer changed their minds. Good condition with little/no sign of use. No marks on dovetail. Open box. Full manufacturers warranty. £599.00 £539.00 (saving £60.00)

One Sky-Watcher EQ-AL55i PRO Go-To Astronomy Mount. Ex Demo Ex demo - used but complete and in good overall condition. Signs of usage and scruffy packaging. Grab a bargain! Full manufacturers warranty. £759.00 £607.20 (saving £151.80)

One Starfield Gear60 Quadruplet f/5 Petzval APO. Customer Return Too heavy for customers needs - our webpage now lists the correct 3.1kg weight. Complete, in good condition. Open box. Full manufacturers warranty. £849.00 £764.00 (saving £85.00)

One ZWO ASI 533MC-Pro USB 3.0 Cooled Colour Camera. Customer Return USB socket dislodged during usage, subsequently repaired by ZWO and now working A-OK, good condition, complete. Open box. Full manufacturers warranty. £859.00 £773.00 (saving £86.00)

One Starfield 102mm f/7 ED Doublet Refractor. Customer Return No longer required. Fully tested in our workshop, all working A-OK. Generally good condition but a slight amount of dust in the optics from usage but not worthy of cleaning. Cosmetic only. Open box. Full manufacturers warranty. £899.00 £809.00 (saving £90.00)

One iOptron HEM15 Hybrid Harmonic Drive Equatorial GoTo Mount (without iPolar). Customer Return Customer changed their mind. Complete, in good condition working A-OK. Open box. Full manufacturers warranty. £1,159.00 £1,043.00 (saving £116.00)

One Celestron StarSense Explorer 12" Dobsonian. Open Box Open box / ex demo. Complete, perfect condition. Full manufacturers warranty. £1,234.00 £1,110.00 (saving £124.00)

One Starlight Xpress Trius PRO 814 Colour CCD Camera. Customer Return Developed a fault during the warranty period, subsequently replaced with a new camera and this has now been repaired / inspected by Starlight Xpress. Complete in good condition, working A-OK. Open box. Full manufacturers warranty. £1,516.00 £1,364.00 (saving £152.00)

One StellaMira 125mm ED Doublet f/7.8 Refractor Telescope. Damaged Brand new, unused but with some carbon fibre irregularities in the weave pattern and some slight scuffs / divots. Cosmetic only, Optically and mechanically A-OK. Grab a bargain! Full manufacturers warranty. £1,599.00 £1,199.25 (saving £399.75)

One StellaMira 125mm ED Doublet f/7.8 Refractor Telescope. Damaged Brand new, unused but with some carbon fibre irregularities in the weave pattern and some slight scuffs. Cosmetic only, Optically and mechanically A-OK. Grab a bargain! Full manufacturers warranty. £1,599.00 £1,199.25 (saving £399.75)

One iOptron HAZ31 Alt-Az Strain Wave Mount. Customer Return Customer decided to go a different route. This has a few minor cosmetic flaws typical of this level of mount: slight ring marks on side - barely noticeable in the black surface and a slightly shiny surface on the GPS antenna area. Otherwise complete in good condition. Tested in our workshop - A-OK! Open box. Full manufacturers warranty. £1,949.00 £1,754.00 (saving £195.00)

One ZWO ASI 2600MM-Pro USB 3.0 Cooled Mono Camera. Customer Return Developed a fault during the warranty period, we replaced with a new camera for the customer and this has subsequently been repaired by ZWO. Good condition, working A-OK. Complete. Open box. Full manufacturers warranty. £2,059.00 £1,853.00 (saving £206.00)

One ZWO ASI 2600MC-DUO USB 3.0 Cooled Colour Self Guiding Camera. Customer Return No longer required. Good condition, working A-OK. Open box, complete. Full manufacturers warranty. £2,120.00 £1,908.00 (saving £212.00)

You are well known for your fondness for Tele Vue eyepieces. I'll share this with you without mentioning a name (if you guess who, please don't say it). Some time ago, someone asked if I knew somebody at SGL who would review a new eyepiece series. Before I could answer, he added, "But not John. He compares everything with his Tele Vues, and that is a very high bar". Steve

Yes, Paul. I remember now. I will add his name to my post. Thank you 🙂 I am over most of my jet lag, so have remembered something else from the visit. I won't add this to the post because it is sad. Al took me aside and showed me a wall displaying his optical patent certificates. He was understandably proud but concluded the conversation by saying we don't file patents anymore because people copy the designs anyway, and the info in a patent only makes it easier for them to do so. Steve

Ditto. The Tele Vue 85 APO is winking at me, particularly after seeing Al use one to demonstrate the edge-to-edge sharpness of an eyepiece. They have multiple ways of testing an eyepiece, including the usual optical resolution charts. But Al's favourite methods are less techie and more DIY. I.e., a row of ball bearings that, when illuminated with a high contrast light, provide pinpoint highlights across the field, enabling multiple airy discs to be observed. And shiny aluminium filings sprinkled and glued onto a black surface to simulate stars. I remember something else I should have included in my post: the Ethos was David's project, not Al's. David wanted to take the Tele Vue 'Spacewalk' philosophy ('ethos') to the next level with an even wider field. When David showed Al his initial drawings for a new Ethos eyepiece, Al said he thought the design might be too ambitious. But later, when progress was made and demonstrated to Al, he was impressed, and, together with one of their optical wizards, they finished the design and brought it to market. I'll add both of the above to my post. Steve

One Coronado SolarMax II 60 RichView Solar Telescope with BF10. Open Box Open box - used for product photography. New and unused. Excellent condition. Open box. Full manufacturers warranty. £2,198.00 £1,978.00 (saving £220.00)

One Celestron 8" Rowe-Ackermann Astrograph (RASA 8). Damaged B Grade 8" RASA - has a slight paint blemish on the OTA tube otherwise in excellent condition and optically A-OK. Scruffy box. Full manufacturers warranty. £2,469.00 £1,999.00 (saving £470.00)

One Celestron 8" Rowe-Ackermann Astrograph (RASA 8). Damaged B Grade 8" RASA - has a slight paint blemish on the OTA tube otherwise in excellent condition and optically A-OK. Scruffy box. Full manufacturers warranty. £2,469.00 £1,999.00 (saving £470.00)