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APM Doublet SD Apo 140 f/7 FPL53 and Lanthanium H-LAF53 Lens in Cell

The new APM 140mm 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 140mm SD-Apo features a Doublet lens cell using SD glass FPL-53 to maximize performance. . As with all APM telescopes consistency is assured and each telescope goes through an interferometrical test at the 532nm (green) wavelength before shipping.

With 980mm focal length, the 140mm SD-Apo is an impressive all-rounder.

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


Delivery contains:
  • 140 mm f/7 Lens in Cell


Specifications

Lens:
Doublet ED Apo with FPL-53 Element
Color:
black
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
Total weight:
ca. 4.4 lb