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One TS 2.5" Rack and Pinion Focuser M117. Customer Return Didn't suit customers scope. Excellent condition, open box. Full manufacturers warranty. £270.00 £243.00 (saving £27.00)

One Baader Hyperion and Morpheus Eyepiece Case. Customer Return No longer required. Open box, excellent condition. Full manufacturers warranty. £69.00 £62.00 (saving £7.00)

One StellaMira 2" 90º Di-Electric Diagonal. Customer Return Didn't suit customers needs. Very good condition, no signs of use. Open box. Full manufacturers warranty. £109.00 £98.00 (saving £11.00)

One Baader Fringe Killer Filter 2". Customer Return No longer required. Good condition, in original case. Open box / seal. Full manufacturers warranty. £114.00 £102.00 (saving £12.00)

One ZWO OAG-L M68 Off Axis Guider. Customer Return Didn't suit customers setup. Complete, in excellent condition. Open box. Full manufacturers warranty. £199.00 £179.00 (saving £20.00)

One William Optics x0.8 Adjustable Reducer Flattener for ZS73. Customer Return No longer required. Excellent condition, open box. Full manufacturers warranty. £219.00 £197.00 (saving £22.00)

One Celestron Focus Motor for SCT, EdgeHD & 8" RASA. Customer Return No longer required, open box but complete and in excellent, unused condition. Full manufacturers warranty. £218.00 £196.00 (saving £22.00)

One TS-PHOTON 6" f/6 Advanced Newtonian Telescope with Metal Tube. Customer Return Didn't suit customers requirements. Signs of use, small paint chip on underside of tube and a few small cosmetic works but otherwise A-OK. Full manufacturers warranty. £249.00 £224.00 (saving £25.00)

One StellaMira 110mm ED f/6 Refractor Telescope. Open Box Brand new, unused, open box - used for product photography. Full manufacturers warranty. £799.00 £719.00 (saving £80.00)

One Askar FRA600 F3.9 Reducer. Ex Demo Ex demo - used for review / testing purposes. Excellent condition, performing as it should. Open box, Full manufacturers warranty. £365.00 £328.00 (saving £37.00)

One Askar FRA600 f/5.6 108mm Quintuplet APO Astrograph. Ex Demo Ex demo - used for review / testing purposes. Excellent condition, performing as it should. We recommend using this with the matched reducer for best results / correction (one is being added to clearance shortly). Open box, Full manufacturers warranty. £2,399.00 £2,159.00 (saving £240.00)

It is threaded for 1.25" filters but the nosepiece is not removable. It is part of the optical design. I don't think we know yet (this is a new product for us) but the 17mm internal field stop suggests some wide-field eyepieces with a field stop greater than around 17mm will experience some vignetting. Over time we will use it with a range of eyepieces then recommend those most compatible. I doubt you would notice artefacts associated with prism-based binoviewers (this StellaMyra model doesn't use prisms) but there will inevitably be some aberrations (all binoviewers have some). Probably only noticeable at high magnifications and/or when observing especially bright targets, like planets. My personal opinion is binoviewers are best used for low-medium magnification observing. Used this way, the relaxed comfortable 3D-like views they provide are wonderful. They are. HTH, Steve

It has only just been released but I expect they will add a protocol document soon. They usually do. It is a handheld device that can also be plugged via a USB2 cable into your PC or Laptop. The enclosure also has 2 x 3 mm holes at the bottom for fitting it your telescope or in your observatory. HTH, Steve

Another new StellaLyra product manufactured by Long Perng in Taiwan 🙂 StellaLyra 1.25" Linear Erect Image Binoviewer This binoviewer is more convenient than most because it does not require additional in-focus distance. If your eyepieces reach focus with your telescope then you will also be able to reach focus with the binoviewer in place. (No need for a Barlow or glass-path-corrector). Also, unlike most other binoviewers, it uses a dielectric-coated, knife-edge beam splitting mirror to reduce the effects of field curvature and other optical abberations. The design also enhances contrast.

This pocket-sized device provides useful real-time environmental data for astronomers and astro-photographers 🙂 Pegasus Uranus 2 Meteo Sensor Using integrated digital sensors, the Uranus Meteo Station continuously checks ambient temperature, humidity, pressure, cloud height, cloud coverage and night sky brightness, then displays the results via an easy to ready red LCD display. It also features an internal GPS receiver that provides precise time & date, latitude and longitude, altitude, time of astronomical dawn and twilight at your location. Oh, and a CMOS sensor to measure sky brightness. Can also be plugged via a USB2 cable into your PC or Laptop.

You chose well. The situation hasn't changed. To make this viable we had to place a large order. We have also invested in a cutting bench. Protostar is regarded as the very best so we consider it money well spent. Steve

I saw what you did 😉 My response was carefully worded too 😄 There is too much talk these days about ED glass types. The ED lens is only one part of the optical design. It depends heavily on the quality and compatibility of the matching Crown lens. And of course there is the lens cell (the mechanical structure that holds the optics). It is hard to manufacture a cell able to reliably hold optics in alignment, across a range of temperatures. Some big names have tried and failed and, even now, some continue to struggle with this part of the optical design. Steve

You can now buy Protostar Flocking Material in the UK 🙂 Protostar was the first to develop a black, low-pile surface for lining telescope tubes. Their material absorbs over 99% of visible light, is effective at all angles of incidence and doesn't shed fibres. Protostar Flocking Material

Currently we are unable to share details of future models. Sorry. Steve

I suspect this has more to do with Chinese manufacturers preferring to source glass from Chinese glass companies, whereas Taiwanese manufacturers tend (at least historically) to source from Ohara, Hoya (both Japanese) and Schott (German). Currently I do not believe Chinese telescope and glass manufacturers outperform those from Taiwan / Japan / Germany (sorry, John) but I do believe the Chinese can manufacturer glass of equal quality. The Evolux and Esprit series demonstrate this. HTH, Steve

@vlaiv is right 🙂 The StellaMira 110mm ED is a relatively fast ED doublet so will, of course, have some CA. This is normal for any refractor with a similar design, specification and price. For visual astronomy the views will be wonderful with only minor CA. For broadband imaging (DSLR, OSC or Mono with LRGB filters) the CA is much - much - better than a regular achromat but not as well corrected as, say, the more expensive StellaMira 90ED. For narrowband imaging (Mono camera with narrowband filters or a dual-band filter) the results will be very nice indeed. Our StellaMira ED doublets are not breaking new ground. Instead we have chosen tried-&-trusted established designs. I.e. experienced astronomers will know the 66m / f6 and 80mm / f6.25 were both previously manufactured for Sky-Watcher and sold as Sky-Watcher Equinox ED. For StellaMira, we simply commissioned the same designs but with better, more robust, R&P focusers. HTH, Steve

I don't think either telescope exists.

Meet the new StellaMira 110mm ED f/6 doublet refractor with ED glass and a 2.7" R&P focuser 🙂 Manufactured by LongPerng.

PS: All our customers with existing backorders are not affected by recent price increases 😇

@gilesco is right. The recent price increases are a result of an unfavourable $ <-> £ exchange-rate. This is because for some products we have absorbed some of the increase and/or have been able to off-set it with existing stock. HTH, Steve