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Borg Fast Astrographs

Japanese made Borg telescopes and accessories are available now from 365Astronomy.

These Japanese optics of superior quality offer fast imaging...

Various optical systems are available at f/3.6, f/3.9 and f/5.6., but always the highest quality.

Shrtly we will also offer bundles with Primaluce Lab Eagle and some premium telescope mounts as well.

Products

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$Borg Fluorite Apochromatic Refractor 107FL f3.9 with ESATTO 3" Motorised Focuser$

£5215.00

Low stock (1)

SKU: BORG10739EST3

Borg

Borg Fluorite Apochromatic Refractor 107FL f3.9 with ESATTO 3" Motorised Focuser

		(0 reviews)

This wonderful apochromatic refractor with fluorite optics offers an incredible f3.9 focal ratio and it has a very large 55mm flat field to allow the use of cameras also equipped with very large sensors, even larger than Full...

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$Borg Fluorite Apochromatic Refractor 90FL f3.9 with ESATTO 3" Motorised Focuser$

£4675.00

Ask about stock

SKU: BORG9039EST3

Borg

Borg Fluorite Apochromatic Refractor 90FL f3.9 with ESATTO 3" Motorised Focuser

		(0 reviews)

Borg fluorite apochromatic refractor 90FL f3.9 with ESATTO 3", 90mm diameter, 350mm focal length (f3.9), 6 elements fluorite apochromat, carbon fiber tube with 3 inches ESATTO focuser, rear thread for camera connection,...

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News

02/01/2021

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!

Happy New Year!

Zoltan and the Team

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Reviews

$Baader 2" BDS-RT Diamond Steeltrack RT Focuser for Refractor Telescopes$

Baader 2" BDS-RT Diamond Steeltrack RT Focuser for Refractor Telescopes

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...

G.N.Wilcock

Oct 26, 2019