Manufacturer: -TS Zubehör
Product number: TSSPD4

EUR 39,00


incl. 19 % VAT (DE)  
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excl. 6.95 € shipping costs (DE)  
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TS-Optics Secondary Mirror Spider with Collimation Possibility for 4.5" Newtonian Telescopes
A robust spider ensures high adjustment stability. The TSSPD not only provides safe support for your Newtonian secondary mirror, but also allows its collimation. For this, 3x M4 threads (female) are provided.

The spider vanes, made of stainless steel, are only 0.5 mm thick. This reduces annoying diffraction effects around bright stars to a minimum and improves contrast.

This secondary mirror spider is perfect for self-construction, but it can also be used for commercially available Newtonian telescopes, for example from Skywatcher, GSO, Celestron, etc. We also offer matching secondary mirror holders (see recommended accessories).

Advantages and features of the TSSPD4 secondary mirror spider:
Flexible - fits telescope tubes from 123 mm to 131 mm inner diameter
Counter nuts for the tube are supplied
Suitable for secondary mirror holders from 30 mm diameter at the bottom base
Collimation of the secondary mirror with M4 thumb screws - 2x3 M4 threads (female) are present.
Diameter of the central part (hub): 30 mm - so small secondaries from 31 mm minor axis can also be used.
The diameter of the central bore for the counter screw is 4.5 mm, so secondary mirror holders with female M4 thread can be used. The bore can be drilled out without problems, for example for M6 or 1/4" screws.
The four spider vanes are fastened with screws. For this reason, a high tensile load can be obtained.

For telescope tubes with diameter:123-131 mm
Height of center hub and the four vanes:20 mm
Threads for collimation:3x M4 thread (female)
Diameter of the central bore:4.5 mm
Material:Stainless steel - matt black
TS-Optics secondary mirror spider with collimation elements



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Reviews

Written by Sven Hendricks
on 2020-06-17

"Stabiel, und ""filligran"" zu gleich. Ideal zum austausch einarmiger oder dicker Spinnen. Die ""Justageschrauben"" sind nur Mini Innensechskantschrauben. Rändelschrauben mitbestellen."