Cassegrain - Dall Kirkham 9.25"   f/11.5

 

PRICE €. 2440,00  net vat

 

 

Instruments mechanical data (PDF)

OPTICAL SYSTEM

 

Aperture 9-1/4 inch (231 mm) 

 

Focal Length 2650 mm 

 

Focal ratio f/11.5

 

Central Obstruction 32%  

 

Back Focus from Primary mirror Surface  (250 mm) 

 

OTA Length 516 mm 

 

Optical Tube Carbon Fiber 

 

Dimensions Overall Dimensions (PDF) 

 

Weight  (9 kg) 

 

 

PRIMARY MIRROR

 

Diameter 9-1/4 inch (233 mm) 

 

Clear Aperture  (231 mm) 

 

Focal ratio f/3 

 

Mounting Laser Collimated and Permanently Fixed 

 

Material Precision Annealed Supremax

 

Coating Enhanced Aluminum - 96% 

 

 

SECONDARY MIRROR

 

Diameter  (68.25 mm) 

 

Material Precision Annealed Supremax

 

Shape Hyperbolic 

 

Coating Enhanced Aluminum - 96% 

 

 

ACCESSORIES : Focuser moonlight 2" 

 

                            N.3 cooling fan + power supply

 

                            1 vixen dovetail plate

 

                            Wooden case for wordwide shipping

 

                            Optics test report

 

                            Warranty 2 years

 

 

 

 

OPTIONAL ACCESSORIES:  Optical flat window

 

Type glass: BK7- Double side accuracy wave 1/5 lambda at 530nm

                                                                               

                                                 

                                    

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