TS-Optics massive Metal Spider for 8″ Newtonian Telescopes D=223mm


or 4 fortnightly payments of $57.50 with Afterpay More info

Stable stainless steel spider for Newtonian telescopes – ideal for amateur telescope making and improvement of existing telescopes.

Secondary, secondary holder and collimation screws are not included.

Available on backorder

SKU: TSSPI223 Category: Tags: ,


TS-Optics adjustable secondary holder with spider vanes

A robust secondary support guarantees adjustment stability. Our TSSPI has been designed with optimal stiffness with secondaries larger than 70 mm in mind.

It is ideal for amateur telescope making but it can also used for upgrading standard Newtonians by Skywatcher, GSO, Celestron etc. The secondary should have a diameter of at least 70 mm (minor axis).

Advantages and characteristics:

♦ Mounts to the tube with M8 thread bolts and counter nuts
♦ Suitable for secondary supports > 30 mm at their lower base
♦ Central bore diameter is 6.5 mm. So secondary holders with M5, M6 and 1/4″ rod can be used. We recommend counter sunk screws as they are self-centering.
♦ The spider vanes are glued and additionally secured with setting screws (three per vane).
♦ Suitable for OTA from 223 mm to 235 mm inner diameter
♦ Secondary adjustment by optional M4 knurled screws; 2×3 female threads are inserted.

Technical Data

Spider vanes diameter: 223 mm

Collimation thread bores: 6x M4 female, circle diameter 24 and 40 mm

Diameter of the center collimation unit: 60 mm

Center bore diameter: 6.5 mm

Spider vane width: 21 mm

Spider vane thickness: 2 mm

Material: stainless steel, matte black anodized

Colour: black anodized


There are no reviews yet.

Be the first to review “TS-Optics massive Metal Spider for 8″ Newtonian Telescopes D=223mm”

Your email address will not be published. Required fields are marked *