APM 140mm Doublet APO Telescope 2.5 Inch Focuser Bundle

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APM 140mm Doublet APO Telescope 2.5 Inch Focuser Bundle

$3,590

Out of stock

APM 140mm Doublet APO Telescope 2.5 Inch Focuser Bundle features an optical tube Doublet lens cell using SD glass equivalent to FPL-53 to maximize performance.

Out of stock

SKU: APM140-7-2.5ZTA Categories: , ,

Description

APM 140mm Doublet APO Telescope 2.5 Inch Focuser Bundle

APM 140mm Doublet APO Telescope 2.5 Inch Focuser Bundle features an optical tube Doublet lens cell using SD glass equivalent to FPL-53 to maximize performance. This innovative combination of materials and design has resulted in optical performance far beyond the norm for a telescope of this price. As with all APM telescopes, consistency is assured and each telescope goes through an interferometric test at the 532nm (green) wavelength before shipping.

Traditional APM quality has been applied in all areas. The included 2.5″ focuser is a Rack and Pinion type, with 1:10 focusing. It remains rigid under high loads making it ideal for imaging. The attention to detail extends to areas like the 2″ and 1.25″ eyepiece adapters. These adapters use a new design of collar clamp, far superior to the common brass compression rings found on lesser designs. The tube also has a thread M109 x 1 and M95 x 1 to accept a 3″ or 2.5″ Starlight focuser.

With a generous 980mm focal length, this is an impressive all-around system. From intricate double star observing to high contrast detailed planetary views, this scope will introduce a whole new group of astronomy enthusiasts to APM quality.

APM 140mm Doublet APO is also supplied with a slew of accessories. Inside the sturdy aluminum transport case you will find not only a fantastic value telescope, but also a newly designed 2.5″ focuser, CNC tube rings incorporating a carrying handle, Losmandy-style dovetail and finder bracket.

APM has created an Apochromatic Refractor of incomparable performance and value in its category with the APM 152mm Doublet APO Telescope 2.5 inch Focuser Bundle

Available by special order only. Please call or email us at orders@farpointastro.com for details.

Additional information

Weight 25 lbs

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Package Includes:

  • Optical Tube Assembly
  • 1 Pair of Tube Rings with Handle
  • 2.5″ Focuser with 1:10 Microfocusing
  • Losmandy-Style Dovetail
  • Shoe for Finderbracket

Product Specifications:

Type of telescope: Doublet SD-Apochromat
Lens: Doublet SD APO with FPL53 Element
Color: black / white
Tube material: Aluminium
Aperture: 140mm
Focal ratio: f/7
Focal length: 980mm
Coating: Mulitcoated
Resolution: 0.83″
Limit value: 12.5 mag
Maximum visual power: 280x
Back focus: 180mm
Focuser: 2.5″ APM Focuser, 360° rotatable, with 1:10 Micro Focusing
Connection to eyepiece: 2″ and 1.25″ with adapter
Viewfinder: none supplied
Tube diameter: 152mm
Length during observing: 1030mm
Transportation length: 830mm
Dew cap diameter: 290mm
Eyepiece adapter: to 2″ and 1.25″
Tube weight: 19.38 lb. including tube rings

APM 140mm APO Spot Diagram

APM 140mm Wavelength Diagram

APM 140mm Wavelength Diagram

APM 140mm APO Focuser Data

APM 140mm Reflection Measurement

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