APM Doublet SD Apo 140 f/7 FPL53 Optical Tube

APM Doublet SD Apo 140 f/7 FPL53 Optical Tube

The new APM 140mm f/980mm Doublet is a mold breaker with high quality. We have painstakingly engineered an optical
Manufacturer : APM
SKU : APM140-7-2.5ZTA
Price: 2428.57 € excl tax
Delivery date : 1-2 days (in stock)
APM Doublet SD Apo 140 f/7 FPL53 & Lanthanium H-LAF53 Optical Tube

The new APM 140mm f/980mm Doublet is a mold breaker with high quality. We have painstakingly engineered an optical and tube solution to bring you APM quality at an unheard price. The new 140- SD Apo features a Doublet lens cell using SD glass FPL-53 to maximize performance. Our innovative combination of materials and design has resulted in optical performance far beyond the normal for a telescope of this price. As with all APM telescopes consistency is assured and each telescope goes through an interferometrical test at the 532nm (green) wavelength before shipping.

The special feature of the 140mm SD APO:
  •  Very high quality processed and of convincingly good optical quality
  •  Colorless optics with FLP53 glass and Lanthan H-LAF53
  •  Precise 2.5" focuser with 1:10 mirco reduction for heavy accessories
  •  With f / 7 ideal for visual and photographic purposes
  •  CNC tube rings
  •  Carry handle
  •  Very good value for money

With 980mm focal length, the 140-SD Apo is an impressive all-rounder. From intricate double star observing to high contrast detailed planetary views, this new scope will introduce a whole new group of Astronomy enthusiasts to APM quality.

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

As optional photo accessory for the SD APO 140 f / 7, we recommend our Riccardi Flattener APO Reducer 0.75xM82 (the focal length is reduced to 735mm at f / 5.25) or our Riccardi APO Flattener Model 2 for APO's. (please look recommended products)

With the new 140 mm SD Apo we believe we have created an Apochromatic Refractor of incomparable performance and value in its category.

Delivery contains:
  • Optical Tube
  • 1 Pair of Tuberings with handle
  • 2.5" Focuser with 1:10 Microfocusing
  • Losmandy-Style Dovetail
  • Shoe for Finderbracket
Products specifications
CoatingMulticoated
Focal ratiof/7
Viewfindernone supplied
Connection to eyepiece2"
Tube materialAluminium
Backfokus180 mm
Length of dewcap290 mm
Focuser2.5" APM Focuser, 360° rotatable, with 1:10 Micro Focusing
Colorblack / white
Type of telescopeDoublet ED-Apochromat
Dewcap diameter186 mm
LensDoublet ED Apo with FPL-53 Element
Aperture140 mm
Focal length980 mm
Resolution0.83"
Limit value12.5 mag
Max. useful visual power280 x
Transportation length830 mm
Length during observing1030 mm
Weight over all9,0 kg ( with Tuberings, handle, 3" dovetail )
Diameter of tube157 mm