The 1100mm x 135mm G-135DB telescope combines a large aperture and ease of use at an affordable price. The Altitude/Azimuth Dobsonian base is so easy to use you will amaze yourself as well as friends and family the first night you use it. The telescope is finished in a handsome Black Granite with a matte black finish Dobsonian swivel base making it as beautiful as it is easy to use. Included are a 1¼″ 25mm Astroscopic eyepiece, a 1¼″ 10mm Plössl eyepiece and a 3x 2-element Achromatic Barlow.
The Galileo G-135DB optical tube assembly features an 1100mm focal length. The Primary mirror is a 135mm heavy duty mirror cell with push / pull collimation screws. The primary mirror is aluminized with Silicon Monoxide Quartz overcoat providing 92% reflectivity and a resolving power of .86 arc seconds. The secondary mirror has an obstruction of approximately 25% linear (approximately 6% of the total area). The optical tube assembly is diffraction limited at λ4 (1/4 wave in Sodium light). The focuser is a 2″ format metal helical rack and pinion focuser with a 2″ to 1¼″ adapter to enable the use of larger 2″ eyepieces. The finderscope is Galileo's Mars' Eye electronic Finderscope which helps by getting the observer behind the telescope without losing the surrounding field of view when targeting objects. Included with the G-135DB are a 1¼″ 25mm Astroscopic eyepiece, a 1¼″ 10mm Plössl eyepiece and a 3x 2-element Achromatic Barlow. The 25mm is a 3 element, fully color corrected, modified Rank Kasspheric eyepiece with an apparent field of view of 52°. The 10mm Plössl eyepiece is a 4 element fully color corrected eyepiece with an apparent field of view of 52°.
- 1100mm x 135mm Optical Tube Assembly
- Easy to use Dobsonian mount in Handsome Matte Black Finish
- Diffraction limited Optical Tube Assembly (λ4)
- Mars' Eye Electronic Finder
- Large 2″ Metal Helical Rack & Pinion Focuser
- 2″ to 1¼″ Adapter
- 25mm Astroscopic Eyepiece
- 10mm Plössl Eyepiece
- 3x 2-element Achromatic Barlow
- CBI Stellarium CD ROM
- One Year Warranty
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