Levenhuk Ra 250RC F8 OTA is a Ritchey-Chrétien telescope with an aperture of 250 mm (9.8 in) and a focal length of 2000 mm (78.7 in) in a traditional metal shell. This model is perfect for any keen astrophotographer. One of the main features of Levenhuk Ra 250RC F8 OTA is the primary mirror made of quartz with a dielectric coating of 99% reflectivity. This model is also fitted with a dual-speed Crayford focuser with the 2'' large diameter thread.
The quartz glass of the primary mirror has one of the lowest thermal conductivity coefficients among optical materials. This model is fitted with a built-in cooling fan for the primary mirror (12V). The relatively compact size of the telescope tube allows for a smaller mount to be used, unlike Newtonian telescopes.
This model has a quartz primary mirror covered with 99% reflection power dielectric coating. The main advantage of quartz glass is its low thermal conductivity coefficient. The telescope is also equipped with a dual-speed Crayford focuser that ensures high precision focusing with no backlash.
The model comes with a built-in fan for cooling the primary mirror and has a sturdy metal shell. Another important advantage of Levenhuk Ra 250RC F8 OTA is its smaller dimensions compared to Newtonian telescopes so a smaller mount can be used.
We recommend using the Levenhuk 0.75x focal reducer with any Ritchey-Chretien model.
dielectric, 99% reflectivity
Primary mirror diameter (aperture)
Secondary mirror diameter
Lens (mirror) shape
Diffraction limit, lp/mm
2'' dual-speed Crayford
Tube-mount assembly system
Optical tube material
Optical tube dimensions
Optical tube weight
General use product. May be used by kids over 3 years old.
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Extensive Manufacturer Warranty
All of our manufacturers offer very generous warranty coverage of the products sold through our store. Based upon which brand is purchased that item is also covered from defects in workmanship and quality.
Explore FirstLight Branded Products: Limited USA One Year Warranty.
Explore Scientific Branded Telescopes: Limited* USA One Year Warranty, Extendable to Unlimited Lifetime Warranty
Explore Scientific Branded Eyepieces: Limited* USA One Year Warranty, Extendable to Unlimited Lifetime Warranty
Explore Scientific Branded Non-Electronic Telescope Accessories: Limited* USA One Year Warranty, Extendable to Unlimited Lifetime Warranty
Levenhuk: All Levenhuk telescopes, microscopes, binoculars and other optical products, except for accessories, carry a lifetime warranty against defects in materials and workmanship; all accessories have a 6-month warranty. This warranty does not cover consumable parts, such as bulbs (incandescent, LED, halogen, energy-saving and other types of bulbs), batteries (rechargeable and non-rechargeable), electrical consumables, etc.
Vixen Optics:Every Vixen telescope, astronomical binocular, and mount is warranted by Vixen Optics to be free of defects in materials and workmanship for a period of 5 years from the date of original purchase in the U.S.A. and Canada. Five year warranty covers all non-electrical/mechanical parts. Electrical parts are warranted for 1 year from date of purchase.