Up for sale is my
10” Newtonian reflector on a Dobsonian mount with Crayford focuser, Telrad, laser collimator + accessories; a “Bintel BT 252 Premium” bought new in January, 2007 from BINTEL in Sydney. There is nothing defective about this scope, only I am looking to change to a smaller scope more suitable to my needs. I am also including a few accessories to compliment it.
Specifications
Focal length: 1250 mm (1.25 m)
Aperture: 250 mm (10”)
Focal Ratio: f/5 (fast)
Primary Mirror: parabolic BK-7 Glass
Mirror Coatings: aluminium with SiO (silicon oxide) overcoat
Four-vane spider
Minor Axis of Secondary Mirror: 63 mm
Weight: 26 kg (tube 16 kg; base 10 kg)
Tube Length: 1220 mm (1.2 m)
Tube Outer Diameter: 303 mm
Focuser:
1:10 2” Crayford focuser with coarse and fine adjustment (includes 1.25” adapter)
Finder Scope: 8 x 50 Achromatic +
Telrad red-dot finder
Colour: grey OTA with black mount
Also includes:
Primary mirror cooling fan with battery holder and AC adapter
Eyepiece rack
Dual tensioning springs
Teflon pad sliders
Foam pad on mount backboard to prevent collision with OTA (my own addition)
Mount carrying handle
Snap-on dust cap
Accessories:
Eyepieces: 26 mm (2”) 15 mm & 9 mm (1.25”)
1.25”-2” eyepiece adapter
Newtonian Laser Collimator (very new)
Star Wheel
Original instruction manual
Original packaging- this includes plastic cover sheet for the entire setup and two polystyrene foam mounts for when you need to sit the OTA horizontally on a bench
This is a wonderfully dynamic scope with considerable aperture, even for advanced users. All my equipment has been kept indoors away from the elements and my puppy! It is all under 2 years old and has been properly cleaned and maintained. The difference between my equipment and the same newly bought equipment is negligible. Also, the price of new 10” dobs has since gone up by $100-$200.
Asking price: $600 negotiable
PICKUP can be made from Rozelle in the inner-west of Sydney, 10 minutes from the CBD. I am on school holidays at the moment and am thus available any time of the day in January. I do not think it would be practical to post/ship this scope, unless anyone can convince me otherwise. Payment can be made by cash on delivery or bank deposit beforehand.
Cheers!
Mischa (a.k.a Mr. Subatomic)
