Spiders & Secondary Mirror Holder

Spiders and Secondary Holders

Spieders and Secondary mirror holders for Newtons as an upgrade or for DIY.

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Holder for Newtonian secondary mirrors for telescope self-construction or improving Newtonian reflectors.

  • for secondary mirrors 50 mm diameter - minor axis
  • Inner thread at the base: M6 - central
  • Distance from the base to the beginning of the 45° slant: 47 mm
  • Flat contact surface for bonding the secondary mirror with exact 45° incline
74.90 €
Delivery date : 1-4 days
 
 
Suitable for Newtonian telescopes with 283-300 mm tube diameter (inside)
285.00 €
Delivery date : 1-4 weeks
 
 
Diameter of the minor axis: 62 mm
94.00 €
Delivery date : 1-4 days
 
 
Long design with 52 mm diameter
84.00 €
Delivery date : 1-4 days
 
 

Holder for Newtonian secondary mirrors for telescope self-construction or improving Newtonian reflectors.

  • Diameter: 20 mm - suitable for secondary mirrors from 22 mm diameter - minor axis
  • Inner thread at the base: M6 - central
  • Distance from the base to the beginning of the 45° slant: 5 mm
  • Flat contact surface for bonding the secondary mirror with exact 45° incline
59.00 €
Delivery date : 1-4 days
 
 

Holder for Newtonian secondary mirrors for telescope self-construction or improving Newtonian reflectors.

  • Diameter: 30 mm - suitable for secondary mirrors from 32 mm diameter - minor axis
  • Inner thread at the base: M6 - central
  • Distance from the base to the beginning of the 45° slant: 5 mm
  • Flat contact surface for bonding the secondary mirror with exact 45° incline
74.00 €
Delivery date : 1-4 days
 
 

Holder for Newtonian secondary mirrors for telescope self-construction or improving Newtonian reflectors.

  • Diameter: 40 mm - suitable for secondary mirrors from 42 mm diameter - minor axis
  • Inner thread at the base: M6 - central
  • Distance from the base to the beginning of the 45° slant: 5 mm
  • Flat contact surface for bonding the secondary mirror with exact 45° incline
89.90 €
Delivery date : 1-4 days
 
 

Holder for Newtonian secondary mirrors for telescope self-construction or improving Newtonian reflectors.

  • Diameter: 60 mm - suitable for secondary mirrors from 63 mm diameter - minor axis
  • Inner thread at the base: M6 - central
  • Distance from the base to the beginning of the 45° slant: 7 mm
  • Flat contact surface for bonding the secondary mirror with exact 45° incline
99.00 €
Delivery date : 1-4 days
 
 

Holder for Newtonian secondary mirrors for telescope self-construction or improving Newtonian reflectors.

  • Diameter: 65 mm - suitable for secondary mirrors from 70 mm diameter - minor axis
  • Inner thread at the base: M6 - central
  • Distance from the base to the beginning of the 45° slant: 45 mm
  • Flat contact surface for bonding the secondary mirror with exact 45° incline
74.00 €
Delivery date : 1-4 days
 
 
Stable spider for Newtonian telescopes - ideal for building and upgrading an existing telescope.
39.00 €
Delivery date : 1-4 days