About this product
Model: stellalyra_10_truss_cc
Part Number: CC10A
10" f/12 StellaLyra Truss Classical Cassegrain
Perfect for high-magnification lunar and planetary observing and imaging
The long focal length classical Cassegrain design is an excellent choice for visual observation and astrophotography of smaller targets, such as planets, close-up Lunar, double stars, small nebulae and comets.
Open-framed, carbon fibre truss design for incredible stability, quick thermal equalisation and transportation (not to mention it looks fantastic!).
A fixed position primary mirror eliminates image shift that often occurs when focusing some other telescope designs.
It also features a sturdy 3.25” dual-speed linear bearing focuser.
Three CNC-machined spacer rings are included that provide flex-free focus extension when required.
Interior knife edge baffles reduce stray light for maximum contrast.
It is fitted with a Losmandy-style dovetail mounting plate on the base and a handy Losmandy-style dovetail mounting plate on top for piggy-backing over accessories.
FEATURES
- 250mm (9.84") optical aperture
- 3045mm focal length
- f/12 focal ratio
- Fixed primary
- Quartz primary and secondary mirrors
- Primary mirror: Parabolic primary mirror; minimum 95% reflectivity
- Secondary mirror: Minimum 95% reflectivity
- Secondary mirror linear obstruction: 33%
- Illuminated field diameter: 55mm
- Multiple knife-edge baffle system
- 3.25” dual-speed linear bearing Crayford focuser
- U Style Finder scope base
- Losmandy style mounting dovetail top and bottom
Extensions
The telescope is supplied with 2x 25mm and 1x 50mm CNC-machined focuser extension rings with matt-black interiors.
Telescope Field of View Simulator
What's in the box
- Telescope OTA
- 2" to 1.25" Adapter
- 2x 25mm Focuser Extension Adapters
- 1x 50mm Focuser Extension Adapters
Specifications
- 10" F/12 M-LRC Classical Cassegrains Truss OTA (black)
- Optical design: Classical Cassegrain Reflector
- Aperture: 250mm (10")
- Focal ratio: f/12
- Focal length: 3045mm
- Primary mirror: Parabolic primary mirror; minimum 95% reflectivity
- Secondary mirror: Minimum 95% reflectivity
- Secondary mirror linear obstruction: 33%
- Illuminated field diameter: 55mm
- Secondary mirror holder: 4-vane all metal spider, 3 collimation screws for alignment of secondary mirror
- Tube outside diameter: 400mm / 15.75" at end ring
- Tube length = 690mm / 27.2"
- Focuser: 3.25” dual-speed linear bearing Crayford
- Tube weight : 17.2kg / 38lbs
- Shipped size: 91cm x 51cm x 56cm / 36" x 20" x 22"
- Shipped weight: 22.2kg / 48lbs 14oz
Customer reviews
| Average Rating (1 Review): | |
27 July 2023 | Roy
As well as looking amazing this 10" Classical Cassegrain has amazing performance to match. The fit and finish is first class and the whole scope exudes an air of quality. Despite the carbon fibre construction it is a very bulky piece of kit - twice as big and twice as heavy as a C9.25 for only a small increase in aperture. Performance is on par with the C9.25 but with the advantage of no corrector plate to dew up, and it is an all mirror system so all wavelengths of light come to the same focus, resulting in views and images with a special kind of clarity. Another advantage over an SCT is that this scope will virtually cover a full frame sensor without resorting to additional flattening or correcting lenses - a huge advantage.
I have used this scope to take some excellent lunar images, along with some of my best shots of globular clusters and brighter DSO's.
Highly recommended if you don't mind the bulk and weight, and have a more substantial mount than an EQ6.
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