Telescope OTA Specification Comparison

FEATURE

Europa

SPX

CT

AG

ODK

Tube

Stove enamelled Amuminium

Stove enamelled Amuminium

Carbon fibre
sandwich

Carbon fibre
sandwich

Carbon fibre
sandwich

Cell

250mm spun Alum.
300mm coated cast

CNC 9 point
Aluminium anodised

CNC 9 point
Aluminium anodised
Fan cooled

CNC 9 point
Aluminium anodised
Fan cooled

CNC 9 point
Aluminium anodised
Fan cooled

Spider

Stainless steel
4 vane

Stainless steel
4 vane

Stainless steel
4 vane

Mono Aluminium
anodised
4 vane / SPT

Mono Aluminium
anodised
4 vane / SPT

Focuser

OC1

OC1

OC1 plus
10:1 reduction

OC2 plus
10:1 reduction

OC2 plus
10:1 reduction

Optics

1/6PV wavefront

1/8PV wavefront

1/10PV wavefront

1/8PV wavefront corrected

1/8PV wavefront corrected

Corrector

n/a

n/a

n/a

Fully multi coated 4 element ED
optimised Wynne

Fully multi coated 3 element optimised

Coatings

Hilux High
Reflectivity

Hilux High
Reflectivity

Hilux High
Reflectivity

Hilux High
Reflectivity

Hilux High
Reflectivity

Finder

8x50 Straight

8x50 Straight

8x50 Straight

Optional 8x50

Optional 8x50

Tube Rings

Rolled, coated Aluminium

Rolled, coated Aluminium

CNC machined
Anodised Aluminium

CNC machined
Anodised Aluminium

CNC machined
Anodised Aluminium

Plate/Dovetail

Vixen size

Vixen size

Option

Option

Fitted Top
and Bottom Plates