A WORLD FIRST! Structure and appearance of a camera lens, but with a performance of a high quality APO telescope!
The ASKAR ACL200has been specifically designed for astrophotography, whilst it meats the...
This 0.7x Reducer has been specifically designed for the ASKAR FRA400 f5.6 APO telescopes to achieve a very fast f/3.9 focal ratio and 280mm focal length for wide field full frame imaging.
The ASKAR FMA180 objective lens features a triplet air-spaced APO design, includes two pieces of ED (extra-low dispersion) glass, providing excellent correction of chromatic aberration, which lays the foundation for...
Look no further for the highest quality "Flatfield Refractive Astrograph" - FRA in the 72mm aperture.
The FRA400 is a refractive astrograph designed for built-in flat field correction, however it can also be...
This Reducer/Flattener has been designed for the Sharpstar 61EDPH APO telescope. The connection to your telescope and camera occurs over an M63 x 1 thread. For the correct adjustment the reducer/flatener includes a...
This coma corrector that also serves as an optical reducer, has been designed for commercially available Newtonian telescopes with an aim to improve their performance for imaging.
This Reducer/Flattener has been designed for the Sharpstar 61EDPH APO telescope. The connection to your telescope and camera occurs over an M63 x 1 thread. For the correct adjustment the reducer/flatener includes a...
This Reducer/Flattener has been specifically designed for the Sharpstar 94EDPH APO telescopes to achieve a fast f/4.4 focal ratio for full frame imaging.
This coma corrector that also serves as an optical reducer, has been designed for commercially available Newtonian telescopes with an aim to improve their performance for imaging.
This Reducer/Flattener has been specifically designed for the Sharpstar 94EDPH APO telescopes to achieve a fast f/4.4 focal ratio for full frame imaging.
The SharpStar 61EDPH refracting telescope is a two-element fully separated design that includes one exotic ED lens and multi-layer coating on all surfaces to reduce internal reflections. It provides a very good observation...
The SharpStar 61EDPH refracting telescope is a three-element fully separated design that includes one exotic ED lens and multi-layer coating on all surfaces to reduce internal reflections. It provides a very good observation...
The SharpStar 76EDPH refracting telescope is a three-element fully separated design that includes one exotic ED lens and multi-layer coating on all surfaces to reduce internal reflections.
The SharpStar 76EDPH provides a...
The SharpStar 76EDPH refracting telescope is a three-element fully separated design that includes one exotic ED lens and multi-layer coating on all surfaces to reduce internal reflections.
The SharpStar 76EDPH provides a...
The SHARPSTAR 2.5" flattener has been designed to fully illuminate a full frame sensor (24x36mm) without vignetting even if the telescope is as fast as f/5.
The Ruixing (SharpStar) CF-90II ED apochromatic refracting telescope tube features a three-piece fully separated (air spaced) design that includes one FPL-53ED lens and a full-surface multi-layer coating.
The CF-90II ED...
INTRODUCTORY PROMOTION! 10% OFF! The SharpStar 86SQ features a new four-element fully detached (air spaced) structure, two of which are super ED glass, which eliminates residual chromatic aberrations and...
INTRODUCTORY PROMOTION! 10% OFF! The serious amateur's astro photo instrument, still portable, fast APO with incredible colour correction, for both astro photo and nature photography!
INTRODUCTORY PROMOTION! 10% OFF! The serious amateur's astro photo instrument, still portable, fast APO with incredible colour correction, for both astro photo and nature photography!
INTRODUCTORY PROMOTION! 10% OFF! The serious amateur's astro photo instrument with a pioneering (in this size) dual ED optical system. A fast triplet APO with 910mm focal length, with incredible colour...
INTRODUCTORY PROMOTION! 10% OFF! The serious amateur's large astro photo instrument for deepsky, at the edge of portability, this fast Cassegrain is recommended mainly for astro photography!
This Reducer/Flattener has been specifically designed for the Sharpstar 94EDPH APO telescopes to achieve a fast f/4.4 focal ratio for full frame imaging.
This 0.7x Reducer has been specifically designed for the ASKAR FRA400 f5.6 APO telescopes to achieve a very fast f/3.9 focal ratio and 280mm focal length for wide field full frame imaging.
This Reducer/Flattener has been specifically designed for the Sharpstar 94EDPH APO telescopes to achieve a fast f/4.4 focal ratio for full frame imaging.
INTRODUCTORY PROMOTION! 10% OFF! The serious amateur's large astro photo instrument for deepsky, at the edge of portability, this fast Cassegrain is recommended mainly for astro photography!
INTRODUCTORY PROMOTION! 10% OFF! The serious amateur's astro photo instrument, still portable, fast APO with incredible colour correction, for both astro photo and nature photography!
INTRODUCTORY PROMOTION! 10% OFF! The serious amateur's astro photo instrument with a pioneering (in this size) dual ED optical system. A fast triplet APO with 910mm focal length, with incredible colour...
A WORLD FIRST! Structure and appearance of a camera lens, but with a performance of a high quality APO telescope!
The ASKAR ACL200has been specifically designed for astrophotography, whilst it meats the...
The SharpStar 76EDPH refracting telescope is a three-element fully separated design that includes one exotic ED lens and multi-layer coating on all surfaces to reduce internal reflections.
The SharpStar 76EDPH provides a...
The ASKAR FMA180 objective lens features a triplet air-spaced APO design, includes two pieces of ED (extra-low dispersion) glass, providing excellent correction of chromatic aberration, which lays the foundation for...
Look no further for the highest quality "Flatfield Refractive Astrograph" - FRA in the 72mm aperture.
The FRA400 is a refractive astrograph designed for built-in flat field correction, however it can also be...
The SharpStar 61EDPH refracting telescope is a three-element fully separated design that includes one exotic ED lens and multi-layer coating on all surfaces to reduce internal reflections. It provides a very good observation...
The SharpStar 61EDPH refracting telescope is a two-element fully separated design that includes one exotic ED lens and multi-layer coating on all surfaces to reduce internal reflections. It provides a very good observation...
INTRODUCTORY PROMOTION! 10% OFF! The serious amateur's astro photo instrument, still portable, fast APO with incredible colour correction, for both astro photo and nature photography!
A quick message for those who might have thought to miss this promotion is that due to the fact that 1 Jan was a bank holiday followed by a weekend, we decided to end it on the morning on the first working day of the year: 9am on Monday, 4 January 2021.
So from now you will still have about 36-37 hours to make a decision... The following camera are in this promotion:
ASI071MC-PRO (APS-C sized),
ASI6200MC-PRO (full frame) ASI6200MM-PRO (full frame) and various bundles with this monochrome camera,
ASi2400MC-PRO (full frame, large pixels),
ASI1600GT (with built-in filter wheel),
ASI183GT (with built-in filter wheel),
ASI2600MC-PRO (APS-C sized) (one of the most popular cameras these days),
ASI533MC-PRO (smaller square filter, but extremely popular) ASI1600MMP-KIT3 (this is the only camera that will stay on promotion till stocks last),
ASI462MC-PRO (currently the best and most popular planetary camera due to its extreme sensitivity in near IR),
ASI120MC-S and ASI120MM-S (no introduction needed - our longest selling planetary imagers and guide cameras),
and finally but not lastly at all: ASIAIR PRO (and BUNDLES) - the must have all rounder astro photographer's brain and power center for your ZWO camera: for aligning, locating, guiding and imaging, etc. - all in one...
Hope you can find something on the above list that might be worth considering!
Fitting a 2-inch BDS-RT Baader Diamond Steeltrack Focuser to a Teleskop-Service GSO 8-inch Ritchey-Chretien
Background
The TS 8-inch RC has M90x1mm connections at the focuser end of the scope. My setup has a TS
50mm extension adapter with for 6- & 8-inch RC connected to the scope (TS part no: GSRCV50),
to accommodate the long back-focus.
Attached to this is a TS M90 tilting adapter flange (TS part no: GSRCJ90). This is an aid to
collimation and allows the long axis of the focuser to be aligned with the optical axis of the scope.
I then have a standard TS monorail focuser for the RC, again with an M90x1 connection.
Image 1 shows the 50mm extension and tilting flange, with the old focuser removed. Note the M90
male thread at the end of the flange, to which the focuser connects.
Fitting the Baader Diamond Steeltrack RT
It is assumed that the reader has access to the Steeltrack manual and has purchased the necessary
RT-Adapter M90x1 Diamond Steeltrack (Baader part nu...
PLEASE READ IT! IMPORTANT! COVID-19 and STOCK AVAILABITITY INFO:
Please note that currently we receive about 10 times more phone calls, 3-4 times as many emails, orders etc. whilst we work with reduced staff, so please be patient.
PRICE CHANGE!!! We've received new pricelists for BRESSER, EXPLORE SCIENTIFIC, LUNT and VIXEN products receintly. It will take several days to update the prices, so we cannot guarantee to acceptance of orders for these brands at the current prices. We would recommend to wait till Monday, 18 January to place any orders (or call us to confirm the price and availability before ordering).
PLEASE CONTACT US TO CHECK CURRENT AVAILABILITY BEFORE YOU ORDER ANY SKYWATCHER, CELESTRON, BAADER, BRESSER, LUNT, TS and ZWO PRODUCTS (and possibly some others as well), AS STOCK LEVELS FLUCTUATE AND WE JUST CANNOT UPDATE THE LEVELS IN REAL TIME...
If you have an urgent inquiry, please call Zoltan on his mobile during working hours (Mon-Fri 9am-5pm)
Please send a text or WhatsApp message to Zoltan ONLY if you failed to call him or if it is extremely urgent. His mobile has been flooded with messages as well...
079 1278 4737 (international format: + 44 79 1278 4737)
Thanks for your patience!
Keep safe and healthy!
sidenote... TO THE ATTENTION OF OUR INTERNATIONAL CUSTOMERS!
EU CUSTOMERS: We have temporarily disabled European destinations whilst we adjust our system to the new VAT rules. Hopefully we'll be able to resume shipments to EU countries soon.
USA CUSTOMERS: shipping to the USA is active again, but we request customers to confirm product availability before placing an order! If you are ordering an MGEN-3, no need to check stock, we've got plenty of those. Please note, we will try to avoid sending goods via a postal service due to the huge delays and as DHL Express is more expensive than our system would currently charge for, we might have to charge extra depending on the value and size of the ordered goods.
Please note, due to the increased number if issues with postal services to most directions (especially Australia, Canada etc), we will only ship to these countries on the base of special request and depending on the value and size of the products. This is a temporary measure and we hope to supply worldwide again as soon as the situation improves.
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