Search results for 'astronomy no-mount-telescopes ritchey-chretien no'
The 2" CCD compressor reduces the focal length of telescopes with the factor 0.67x, thus allowing significantly shorter exposure times.
- ♦ The focal reducer is perfectly suitable for RC telescope. It also works good with Celestron EHD or Meade ACF telescopes or with refractors up to the focal ratio F/9
- ♦ The image field of DSLR cameras up to APS-C format is illuminated - full illumination up to 29 mm
- ♦ Easy connection to the telescope via 2" barrel
- ♦ Optimal working distance from the M48x0.75 thread to the camera sensor is 85 mm - enough space for accessories like off-axis guider or filter wheel
- ♦ 2" filter thread at the telescope side
The extension tube extends an adapter with M48x0.75 thread by 20 mm.
- barrel made of metal
- black anodized
- double sided 2" filter thread (M48x0.75) - male/female
- optical path is 20 mm
- the outer diameter of the adapter is is exactly 2" - fits into the 2" receptacle of focusers or adapters
The extension tube extends an adapter with M48x0.75 thread by 15 mm.
- barrel made of metal
- black anodized
- double sided 2" filter thread (M48x0.75) - male/female
- optical path is 15 mm
- the outer diameter of the adapter is is exactly 2" - fits into the 2" receptacle of focusers or adapters
The extension tube extends an adapter with M48x0.75 thread by 10 mm.
- barrel made of metal
- black anodized
- double sided 2" filter thread (M48x0.75) - male/female
- optical path is 10 mm
- the outer diameter of the adapter is is exactly 2" - fits into the 2" receptacle of focusers or adapters
The extension tube extends an adapter with M48x0.75 thread by 30 mm.
- barrel made of metal
- black anodized
- double sided 2" filter thread (M48x0.75) - male/female
- optical path is 30 mm
- the outer diameter of the adapter is is exactly 2" - fits into the 2" receptacle of focusers or adapters
The extension tube extends an adapter with M48x0.75 thread by 5 mm.
- barrel made of metal
- black anodized
- double sided 2" filter thread (M48x0.75) - male/female
- optical path is 5 mm
- the outer diameter of the adapter is is exactly 2" - fits into the 2" receptacle of focusers or adapters
The extension tube extends an adapter with M48x0.75 thread by 3 mm.
- barrel made of metal
- black anodized
- double sided 2" filter thread (M48x0.75) - male/female
- optical path is 3 mm
- the outer diameter of the adapter is is exactly 2" - fits into the 2" receptacle of focusers or adapters
This low profile adaptor enables the connection of T2 accessories to adaptors with M48x0,75 male thread.
- Thread towards telescope: M48x0,75 - 2" filter thread (female thread)
- Thread towards camera: T2 - M42x0,75 male thread
- Optical length only 3,5 mm
- Combining the optical extension tube TSVF230 with the TSM48-T2 adaptor provides a Focal Adaptor from 2" to T2 - with no optical length!
The TS Superflat GPU coma corrector is one of the best correctors for astrophotography through fast Newtonians.
- 4-element coma corrector for excellent imaging in the field and on the axis.
- Designed by Gyulai Pal in Hungary (GPU-Optics)
- Perfectly suitable for Newtonian telescopes with focal ratios of f/4 - provides very good results from f/3.5 to f/6.
- Very tolerant against tilting.
- Focal length is not changed.
- Camera connection through M48 thread.
- For better stability and accuracs, the corrector can be screwed to the focuser. Connection adapters for cameras and focusers are available.
TS-Optics Doublet SD Apo 72 mm f/6 - FPL53
US$ 541.70TS Photoline APO refractor wit 72 mm aperture and fast f/6 focal ratio, a great travel telescope for observation and astrophotography.
- ♦ Powerful, aberration-free apochromatic refractor with 72 mm aperture and 432 mm focal length.
- ♦ Fast focal ratio: f/6
- ♦ FPL53 doublet objective (Ohara Japan), air-spaced - additional lanthanum element, so no chromatic aberration
- ♦ 2.5" dual-speed rack-and-pinion focuser - ball bearing mounted for maximum load with M63x1 female thread for adaptions
- ♦ Retractable dew cap - the apo even fits into the hand luggage
- ♦ CNC tube rings with versatile dovetail bar - EQ5 style and with photo tripod connection.
- ♦ Findershoe on the focuser is included
- ♦ Weight only 2.18 kg - transport length only 31 cm
- Flatfield box by Teleskop-Service for perfect astro images with latest LED technology and adjustable brightness - for astrophotography with telescopes up to 160mm
- Flatfield box by Teleskop-Service for perfect astro images with latest LED technology and adjustable brightness - for astrophotography with telescopes up to 210mm
The adapter extends a male T2 thread to M48x0.75 (2") filter thread without increasing the length.
- Female thread: T2 - M42x0.75
- Male thread: 2" filter thread - M48x0.75
- Length: only 2.5 mm - the mechanical length is optically not effective, as the adapter is completely sunken in the connection adapter
TS-Optics 2" LED Collimator for RC Telescopes
Regular Price: US$ 221.48
US$ 177.01
The TSRCKOLLI collimator was developed for Ritchey-Chrétien telescopes, but also for all other types of telescopes, like refractor, Newtonian or SC Cassegrains - made in Europe
- The corrector allows the collimation of almost all optical systems with high accuracy.
- Suitable for all 2" receptacle with precice 2" barrel to avoid tilting
- LEDs are powered by 2 normal 1.5V AA batteries (batteries are not included)
- We recommend the collimator mainly for RC telescopes, Cassegrains and Schmidt Cassegrains as long as they have a center mark on their secondary mirror. So a top collimation state of the telescope can be reached even at daylight.
OUT OF STOCK
TS-Optics TS 7x50 MX - Marine
Regular Price: US$ 337.11
US$ 283.75
Robust high performance binoculars with excellent characteristics for nature observing, sailing and astronomyTS-Optics TS 10x25 monocular
US$ 13.25TS 10x25 monocular - small spotting Scope for Sport, Nature, Astronomy. A handy spotting scope for an interesting price to "always have with you"The 8" Ritchey-Chrétien is the perfect telescope for astrophotography, but it is also suitable for visual observation.
- ♦ Aperture 8" / 203 mm - focal length 1624 mm - focal ratio f/8
- ♦ Hyperbolic primary and secondary mirror for very high sharpness on the optical axis and a large well-corrected field for astrophotography
- ♦ Both mirrors made of fused silica for stable focus position
- ♦ 99% high-reflectivy coating on main and secondary mirror for an even brighter image and more contrast - special service from TS
- ♦ Quicker cooling down thanks to open construction and primary mirror ventilation
- ♦ Two Vixen style dovetail bars supplied - ideal for accessories like guiding scopes or a piggyback camera mount
- ♦ High-quality 2" dual speed MONORAIL focuser with 2" / 1.25" reduction adapter - motor focuser optionally available
- ♦ RC correctors for larger sensors from APS-C upwards are optionally available
Dovetail Bar - Losmandy Level - for GSO and AstroTech 8" Ritchey Chretien Telescope adaption for the 8" GSO and AstroTec RC and mounts with Losmandy level dovetail bar holder
In the box:
-- Losmandy Level dovetail Bar
-- 2 Spacer for the 8" AstroTech and GSO RC telescope