Tejraj Logo
 
STARTRACKER EXPLORE SCIENTIFIC G.S.O. Taiwan i-Optron GoTo Systems BRESSER Germany SKY-WATCHER Telescopes with
Motor & GoTo
SPOTTING SCOPES BINOCULARS EQUATORIAL MOUNTS EYEPIECES & ACCESSORIES CAMERA ADAPTORS OPTICS / KITS FILTERS
 
Eyepiece Adapters for Telescopes
YOU ARE HERE >> HOME | EYEPIECES & ACCESSORIES | Eyepiece Adapters

Par-Focalising Rings
Eyepiece Parfocalising rings allow you to set the focus register of your eyepieces so accurate that you can change the eyepiece rapidly without the need for refocused. Ring are available either as singles unit or, in the case for more popular 1.25" eyepiece, a set of four can be added. The single-ring kits are supplied with fitting key and spare grub screw. The rings are precision-manufactured from aluminum, and are silver or self-colour finish.

Par-focalising ring (single ring and key) 1.25" Rs 150 + 18% GST
 

Parfocalising rings (set of 4 rings and one key) 1.25" Rs 510 + 18% GST
 

Parfocalising Deluxe Rings (set of 2 rings) 2" Rs 510 + 18% GST
 
 
Eyepiece Adapters
0.965" - to - 1.25" Eyepiece Adapter Rs 300 + 18% GST
Use 1.25" eyepieces with the telescopes that normally use .965" eyepieces. (normally sold in the departmental stores). Because of additional focus travel needed (1.5" approx.), correct focus may not be achieved on the same small refractor.

1.25" - to - 0.965" Eyepiece Adapter Rs 300 + 18% GST
Use 0.965" Eyepieces in any 1.25" Focuser, Star Diagonal or holders.

2" to 1.25" Adapter with Filter Thread Rs 660 + 18% GST
Use 1.25" eyepieces and accessories to be fitted to 2" focuser, star diagonal, or holder.
 
GSO 2 inch Extension tube: 35mm, 50mm & 80mm
GSO 2" Extension Tube : 35mm, 50mm & 80mm
GSO 2" Photography extension tube 35MM 50MM 80MM for astronomical telescope.

Different telescopes can have very different back focus distances.

In most telescopes the focal plane is deliberately moved further out, allowing users to attach cameras and other accessories more easily.

Refractors always have a rather long back focus since they are usually used with a star diagonal or erecting prism.

This high-quality GSO extension tube can be inserted into any 2" telescope focuser to gain an additional 35mm, 50mm or 80mm of back-focus travel. With this, eyepieces and accessories that you may not have been able to use because your fast telescope tube was optimized for various accessories use.
Extend eyepiece and accessory position by 35mm, 50mm or 80mm Add 18% GST
Art No. : FF269-35mm extension tube 1.25”
With brass compression ring; Threaded for standard 1.25"" filters; Total length = 70mm, Extension provided is 35mm (1.38").
Rs 840
Art No. : FF113-35mm extension tube 2”
With brass compression ring; Threaded for standard 2" filters; Total length = 70mm, Extension provided is 35mm (1.38").
Rs 1470
Art No. : FF114-50mm extension tube 2”
With brass compression ring; Threaded for standard 2" filters; Total length = 85mm, Extension provided is 50mm (1.96").
Rs 1560
Art No. : FF115-80mm extension tube 2”
With brass compression ring; Threaded for standard 2" filters; Total length = 115mm, Extension provided is 80mm (3.15").
Rs 1650

SELF-CENTERING GSO 2" Extension Tube : 35mm, 50mm & 80mm
  • Self-centering extension tubes can be used in the event of the Focuser reaching its maximum upper limit. The extension tube will come in handy to get focus of a closer object.
  • Use this new helical compression mechanism to make a 1.25" Eyepiece along with a 2" to 1.25" adapter / convertor to fit the center of the optical axis as much as possible to get the most accurate images and colors.
  • 2-inch barrel size, can be used with telescopes or telescopes with 2-inch size.
  • Manufactured with precision from high quality aluminum The inside has a matte black finish to reduce glare and interference from outside. 
  • With a thread for supporting 2 "standard filters.
  • MADE IN TAIWAN
Extend eyepiece and accessory position by 35mm, 50mm or 80mm Add 18% GST
Self Centering 35mm extension tube 2"
Threaded for standard 2" filters; Total length = 70mm, Extension provided is 35mm (1.38").
Rs 1470
Self Centering 50mm extension tube 2"
Threaded for standard 2" filters; Total length = 70mm, Extension provided is 35mm (1.38").
Rs 1560
Self Centering 80mm extension tube 2"
Threaded for standard 2" filters; Total length = 85mm, Extension provided is 50mm (1.96").
Rs 1650

1.25" Extension Tube Rs 300 + 18% GST
  • Provides extra focuser "back travel" often needed for short-range terrestrial viewing
  • Anodized, machined aluminum tube adds 2" of extension
  • Locking thumbscrews and threaded for filters
  • Fits 1.25" eyepieces or focusers
 
 
 
TEJRAJ & CO. ASTRONOMICAL TELESCOPES BINOCULARS OTHER ACCESSORIES
Our Awards
 
 
 

Copyright © 2008 - Tejraj & Co. All Rights Reserved.