APM 140mm Doublet Refractor FPL53 Glass

The new APM 140mm f/980mm Doublet brings you a large ED Doublet lens with FPl53 element at an unheard of price. As with all APM telescopes consistency is assured and each telescope goes through an interferometrical test at the 532nm (green) wavelength before shipping.

Notable features of the APM 140mm ED APO:

Good optical quality with good QC
ED optics with FLP53 glass
Precise 3.7 "focuser with 1:10 mirco reduction for heavy accessories
With F7 focal length ideal for visual and photographic purposes with a reducer
CNC tube rings
Carry handle
Very good value for money

With 980mm focal length, the 140-SD Apo is an impressive all-rounder, delivering tight double star observing and high contrast detailed planetary views with only 9.8kg tube weight.

Focuser Choice:
The APM 140 ED is available with either a 2.5 or 3.7" Rack and Pinion focuser, with 1:10 fine focusing. Both are suitable for imaging. The 3.7" is capable of dealing with higher loads and also features a separate rotating rear connector. The 2 and 1.25 eyepiece adapters have a brass collar-type clamp.
Contact Altair Astro for the optional Starlight Instruments Feather Touch (model FTF3035B-A) if preferred.

Imaging accessories include generic or APM field flatteners which maintain the focal length. There is also a dedicated Massimo Riccardi designed APM Reducer. This changes focal length by a factor of x0.75, resulting in a 735mm focal length and fast f5.25 focal ratio. (See recommended products)

In the box:

Optical Tube
1 Pair of Tuberings with handle
3.7" Focuser with 1:10 Microfocusing
Losmandy-Style Dovetail
Shoe for Finderbracket
Availablity: Usually in UK stock, 2-4 Days if out of stock in the UK. These scopes are popular, therefore if APM themselves are out of stock, we'll contact you to let you know.

Technical Specs:

Type of telescope: Doublet ED-Apochromat
Lens: Doublet ED Apo with FPL-53 Element
Color: black / white
Tube material: Aluminium
Aperture: 140 mm
Focal ratio: f/7
Focal length: 980 mm
Coating: Multicoated
Resolution: 0.83"
Limit value: 12.5 mag
Max. useful visual power: 280 x
Backfokus: 180 mm
Focuser: 2.5" or 3.7" R&P Focuser, with 360 Rotation
Rear focuser aperture: 2"
Viewfinder: none supplied
Tube diameter: 152 mm
Length during observing: 1030 mm
Transportation length: 830 mm
Dewcap diameter: 186 mm
Length of dewcap: 290 mm
Total weight: 9.8Kg (with tube rings)