Contact our Sales Team by Email: opt@optcorp.com or Telephone: 800-483-6287
 

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Our two models, the CT10 and CT10L are the most popular in the range of CT telescopes. The CT10L in particular has gained fame in the realms of experienced planetary and lunar observers. Most owners of these two telescopes use them for imaging the planets and lunar detail. Having a virtually zero expansion tube which, is considerably more rigid than any other material, flexure with typical cameras and equipment is not an issue.

The resolving power of these telescopes has to be seen to be believed, we guarantee that comparing one of these two instruments with any other telescope of the same aperture, you are going to have available images which outperform others in both detail and low level contrast, perfect partners in getting that last bit of detail out of a planet’s disc or, finally seeing that incredibly small lunar crater inside the much larger one.

We recommend the CT10 for general high resolution views of all celestial subjects but can’t recommend enough the outstanding performance of the CT10L on planetary and lunar subjects.

*The weights shown on each model refer to the standard optical tube with no additional equipment added.

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Spec.

CT10

CT10L

aperture

250mm

250mm

Focal length

1200mm

1575mm

focal ratio

4.8

6.3

adjustable 4 vane spider

stainless steel fully adjustable

stainless steel fully adjustable

focus mount

2" Focuser with
reduction gearing

2" Focuser with
reduction gearing

extension tubes

40mm long screw threaded

40mm long screw threaded

optical glass main mirror

Suprax

Suprax

coatings

Enhanced Hilux

Enhanced Hilux

tube diameter

300mm

300mm

tube length

1050mm

1440mm

tube material

Carbon fibre sandwich

Carbon fibre sandwich

finder

8x50

8x50

secondary size

63mm

50mm

mirror cell

CNC Machined alum.
9 point
suspension

CNC Machined alum.
9 point
suspension

secondary holder

machined alum. with
rotatable holder

machined alum. with
rotatable holder

weight of tube

11Kg

12.5Kg

rings

CNC
machined tube
rings anodised black

CNC
machined tube
rings anodised black

weight of rings

1.5Kg

1.5Kg

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CT10L2
CT12vsml

Model Range

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