The ASTELE™ 102MN OTA (Optical Tube Assembly) is a Maksutov Newtonian with a built-in finder (US Patent pending). The finder objective lens is attached to the telescope's meniscus corrector by a ultra-precision rotating housing. This housing allows rotation between the telescope and the finder. Whatever eyepiece you're using at the time is your finder eyepiece. So, you can have a low-power finder or a high-power finder depending on which eyepiece you have in the ASTELE™ 102MN OTA. When you want to view through the telescope, you rotate the housing 180°, and vice versa for the finder. When you're doing photography, (35 mm or CCD), you can photograph through the finder before or after you take an image of your subject. This will give you a wide-field perspective of the area you're photographing. Another great thing about the ASTELE™ 102MN OTA is its optics. The ƒ-ratio in the ASTELE™ 102MN OTA is 5.5, so, unlike telescopes with much longer ƒ-ratios, you're able to use low magnification (22.4 X, 2.3° with the 25 mm Plössl eyepiece) which produces bright images and wide fields of view for those dim galaxies, nebulae, and very large star clusters, but the ASTELE™ 102MN OTA does an outstanding job on the moon, planets and double stars, too. Diffraction limited optics are multi-coated. The superb optics in the ASTELE™ 102MN OTA make it a great instrument for doing astrophotography as well, delivering pin-point images over a 35mm format. If you're looking for a telescope that's easy to setup, very portable, fun to use and has superb optics, well, look no further. The ASTELE™ 102MN OTA is that and more. Ideal for the beginner or the advanced amateur. Optical Tube and Cells are made from aircraft-grade aluminum. 

Free combination dew shield/lens shade is included.

Finish: Black.

Shown ASTELE™ 102MN G model optional German Equatorial Mount

SPECIFICATIONS	ASTELE™102MN OTA
Optical Design	Maksutov-Newtonian
Optical Diameter:	102 mm (4")
Focal Length:	561 mm (22")
F-Ratio:	f/5.5
Resolving Power (arc sec)	1.14
Optical Coatings	Multi-coated
Limiting Visual Magnitude (approx)	12.5
Maximum Practical Visual Power o with 25 mm eyepiece o with 10 mm eyepiece	200 X 22 X 56 X
Viewfinder (internal with 25 mm eyepiece)	8 x 30 mm
Optical Tube Dimensions (diameter x length)	145 mm x 563 mm (5.7" x 22.2")
Eyepiece Holder:	1.25" (31.7 mm)
Focusing Range	20 m (66') - infinity
Diagonal mirror / prism	mirror
Mounting Type	1/4 x 20
Tripod	optional
Total Telescope Net Weight:	5 kg (11 lb)

ASTELE™ 102MN OTA LOMO Telescope Ground Rating & Reviews