SkyWatcher ED Black Diamond dual speed 72ED refractor tube
The new SkyWatcher EvoStar 72/420mm ED refractor telescope is an apochromatic telescope of 72mm diameter and 420mm focal length. Its objective is composed of an apochromatic doublet (2 lenses) with multilayer treatment and a fully polished low dispersion ED glass. This results in a lens that minimizes light diffusion and improves sharpness and contrast.
The apochromatic objective lens has multilayer coatings with high light transmission. This treatment is called MHC. In addition, the optics of the Skywatcher EvoStar 72 ED telescope are protected by a generous sunshield that will allow you to extend your observing time by delaying the appearance of dew.
Visually, it will allow you to explore the lunar surface, see the nuances of Saturn's rings, follow its satellites, the phases of Venus, admire the cloud bands of Jupiter, observe the dance of its 4 main satellites, or discover the most remarkable objects in the deep sky. Our technicians at Telescopiomania recommend working with a wide range of ED eyepieces for planetary and wide-field observation to take full advantage of their brightness in the deep sky.
In astrophotography, the 72 ED Black Diamond EvoStar will give you excellent wide-field images. It is therefore ideal for obtaining large nebulae, clusters or larger galaxies, such as the Andromeda galaxy. It is therefore ideal for imaging wide field objects.
The optical tube is made of aluminum and is equipped with a Crayford focusing system with a 1:10 reduction ratio. This important reduction translates into a focusing accuracy that will facilitate the focusing process in astrophotography and also for visual focusing. With a diameter of 2" (50.8mm) it is a robust focuser with a reasonable load capacity. It also incorporates a focus locking screw.
The tube has two rings that attach to a 12cm long dovetail which allows the tube to be attached to almost any type of equatorial mount. And to have the safest possible transport, the telescope is supplied with an aluminum case that effectively protects it from shocks.
Technical specifications:
- Diameter: 72 mm
- Focal length: 420 mm
- Optical design: Apochromatic ED doublet (Schott)
- Eyepiece carrier: 50.8 mm (2")
- Focal ratio: F/5.8
- Magnification limit: 11.3
- Maximum magnification (theoretical): 144 x
- Tube length: 42 cm
- Included: Rings and dovetails
- Optical coatings: Multi-coated and anti-reflective
- Total weight: 2.0 kg
- Focuser: Non-rotating Crayford type, with 2" output
Refractor tube SkyWatcher ED Black Diamond dual speed 72ED