Borg 125SD Apochromatic Refractor.

The new Borg 125SD represents a collaboration between Borg and Pentax on a new objective
lens design with the following specifications:

* Aperture 125mm (5")
* Focal Length 750mm (29.5") F/6.0
* SD Apochromatic Objective, fully multi-coated
* Tube Diameter 115mm (4.5")
* Physical Length 656mm (25.8")
* Weight 3.5kg (7.7lbs)
* Includes 360mm Main Tube (8630), Finder Base Tube (8751) and M68.6 Drawtube (8318)
* Short Tube Set (9125S) also available

Features:
* Newly redesigned, advanced lens elements allow dramatically improved optical performance
* Objective lens cell is produced by Borg's new partner - Pentax, Japan, which produces the
highest grade optics in the industry
* ED F/4 Reducer (7704) combines with the 125SD to create a fast optical system - F/3.9
astrograph (6 elements & 2 SD/ED elements in an advanced Petzval optical design), which
covers 35mm full format sensors
* 0.85x Field Flattener (7887) creates a 5 element Petzval system at F/5.1, which achieves a
virtually flat illumination across 35mm full format sensors
* 1.4x Teleconverter (7214) configures the system as a 1050mm F/8.4 imaging system
suitable for lunar, solar and planetary targets
* Borg's modular design allows for easy airline packing, making possible overseas
astronomical expeditions without compromising optical quality
* Compatible with wide range of Borg adapters and accessories
* Lightest OTA weight in its class allows use of a small mount
* Focuser options - Borg Helical Focuser M (7835), Borg Helical Focuser MDX (7837), Any
Borg M57 focuser via adapters, Feather Touch Focuser FTF-8C and FTF-M57 (via FTF-BORG
adapter)

Price - £2599.00

See our online library for the Borg 125SD System Diagram showing various Imaging and
Visual configurations.

Options:
Borg Helical Focuser M (7835) - £116.00
Borg Helical Focuser MDX (7837) - £161.00
FTF-8C - £290.00
FTF-M57 - £320.00
FTF-BORG - £40.00
Borg Mounting Rings 115mm Tube (WE-M115) - £159.00
Borg Finder Dovetail Base (7755) - £15.00
Borg 9x50 Finderscope & Bracket (7759+7760) - £95.00
Borg ED F/4 Super Reducer (7704) - £675.00
Borg 125SD Short Tube for use with 7704 Reducer (8295) - £161.00
Borg 0.85x DG-L Field Flattener/Reducer (7887) - £215.00
Borg 1.4x Teleconverter DG (7214) - £183.00
Borg 2" Eyepiece Holder II (7504) - £26.00

All plus p&p.

The Astronomy Shop

1 Tone Hill. Wellington

Somerset TA21 0AU

United Kingdom

Telephone: +44 (0)1823 665510