Newtonian / Maksutov Newtonian , opt. Tube:

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TS-PHOTON 6" F4 Advanced Newtonian Telescope with Metal Tube The PHOTON Newtonian reflector with 154 mm aperture and the aperture ratio f/4 is a fast travel telescope for astrophotography and visual observing. ♦ Aperture 154 mm (6") - focal length 600 mm - focal ratio F4 ♦ High-quality parabolic primary mirror with enhanced reflectivity for a brighter image. ♦ Large secondary mirror for a well-illuminated image with astro and DSLR cameras. ♦ Precise 2" MONORAIL focuser for more stability than with conventional Crayford focusers. ♦ Adjustable primary and secondary mirror cells made of metal, useful collimation aid on the primary mirror. ♦ With only 530 mm length and approx. 5 kg weight, this is an optimal travel telescope which can even be mounted on good photo tripods. ♦ Focus position ready for the TS GPU Superflat Corrector and the TS 2KORRR 0.73x Reducer / Corrector. ♦ Central mark on the primary mirror for easy collimation ♦ Extensive scope of delivery: 8x50 finder, tube rings, 2" extension tube, adapter to 1.25"

Item condition: new and original packed

368.91 €
Delivery date : 1-2 days
Skywatcher - Explorer-250PDS Dual-Speed Newton Reflektor OTA

Item condition: new and original packed

587.40 €
Delivery date : 1-2 days
Bresser Messier NT-203s/800 OTA

Item condition: new, but not original packed

444.54 €
Delivery date : 1-2 days
Skywatcher - Explorer-200P Newton Reflektor OTA

Item condition: new and original packed

402.52 €
Delivery date : 1-2 days
The Sky-Watcher EXPLORER-150PL is a fantastic choice for intermediate astronomers and also the serious beginner. Has a large 150mm of light gathering aperture combined with superb parabolic optics. With a longer focal length of f/8 this telescope provides higher magnification with a given eyepiece than its f/5 cousin, the Explorer-150P. Delivers excellent performance for the observation of the Moon, planets, nebulae, galaxies, star clusters and tight double-stars.

Item condition: new and original packed

259.66 €
Delivery date : 1-2 days
Hotech SCA-2D Laser Collimator with perfect Centering for 1 1/4" and 2" 2" and 1 1/4" Laser, no clamping or decentering through selfcentering mechanism This laser can be used with all 1 1/4" and 2" focuser and tubes. Its clever self centering mechanism will not clamp the laser with screws, the housing spreads out and centers best possible in the focuser. Variances of different manufacturer of the 2" and 1 1/4" tubes will be compensated through this mechanism. The laser solves different problems: Tolerances between different focuser tubes parallelism inside the focuser because of the wide contact surface Tilting is not an issue, because it will not be campled punctually with screws The laser has a reticle with 45° markings, so it´s easy to find out which adjusting screw you have to turn. The result is, it´s not a mystery which screw you have to turn to center the laser point in all directions. Tiny laser point A fine laser point allows the best possible precission for adjustment. Most laser have a large laser spot, so the adjustment will be a gamble. Thanks to the tiny laserbeam the SCA laser allows the best possible adjustment quality. As an alternative you can get this laser also with a fine crosshair. Longlife battery With the CR123 3 V battery you can use the laser 60 h at a time. Delivery contains: SCA Laser with Light Spot and 1 1/4" Hotech Clamping Mechanism 2" Adapter with Hotech Clamping Mechanism Battery CR123 Manual in English Storage Box

Item condition: new and original packed

167.23 €
Delivery date : 1-2 days
TS Optics 1,25" Newtonian Laser Collimator

Item condition: new and original packed

66.39 €
Delivery date : 1-2 days
Celestron 200 mm Newtonian with focal ratio 1:5 A universal telescope with much power and comfort The parabolic primary of this 8" Newtonian mirror minimizes spherical aberration to produce a sharper image near the edge of the field of view. This scope is great for intermediate visual observers and beginning astroimagers looking for a large aperture with lots of light-gathering power. As the telescope is meant for users who already have a suitable mount, there is no mount included! The optics An 8" mirror collects a lot of light, increasing the perception of dim celestial objects. The relatively short focal length and the 2" focuser have a positive effect when viewing large objects, as the latter can be seen completely in the large true field of view. Because of the large focal ratio, "hard" nebula filters can be applied when using eyepieces of long focal lenght, resulting in a clearly enhanced contrast. On the other hand, the parabolic primary mirror allows high magnifications - helpful for moon, planets, planetary nebulae ans smaller galaxies. The low obstruction of only 26% gives more contrast, thus having advantages when observing planets. Of course, the fast optics has also advantages in photography, is it reduces the exposure times. The coma, typical for Newtonians, can be eliminated by a coma corrector, achieving high sharpness even in the corners of the image. General Features 8" (200 mm) f/5 optical design with 2" focuser gives excellent wide field views Parabolic primary mirror minimizes spherical aberration to produce a better image Low obstruction gives high contrast Scope of Delivery Telescope Optical Tube Assembly with rings and dovetail bar 9x50 Finderscope 1.25" Eyepiece 20 mm



417.65 €
Delivery date : 1-2 days
Bresser - Messier NT-150S Optic/Tube, has a small dent

Item condition: new and original packed

231.09 €
Delivery date : 1-2 days
Skywatcher - Explorer-150P Newtonian reflector OTA

Item condition: new and original packed

276.47 €
Delivery date : 1-2 days
Skywatcher - Explorer-150PDS Dual-Speed Newton OTA

Item condition: new and original packed

318.49 €
Delivery date : on request