Astronomy Specialist

APM 140mm F/7 APO DOUBLET WITH 3.7" ZTA

Regular price $7,899.00AUD
SKU: APM140-7-3.7ZTA

APM

Apochromatic doublet

9.8 kg

 

The APM 140mm F/7 Apo is an apochromatic doublet refractor with optics from APM's SuperED FPL53 Apo series. The air-spaced doublet lens cell provides exceptional correction for observation and astrophotography.

The APM 140mm Apo has a native focal length of 980mm and a focal ratio of f/7, making it the ideal instrument for capturing a wide range of deep sky objects. The optics feature broadband multi-coatings on each surface for high contrast and transmission. All APM telescopes are tested at the factory with an interferometer to guarantee their performance.

The large 3.7" ZTA rack and pinion focuser is smooth and accurate with 1:10 fine focusing and integrated 360° rotator. Equipment can be securely fastened by using the included APM Fast Lock 2" & 1.25" adapter.

The telescope comes standard with a Losmandy-style bar, CNC-machined rings, carrying handle and high quality APM-LZOS aluminium tube.

With the addition of the universal APM Riccardi 0.75x reducer, the telescope is transformed into a highly corrected astrograph with a large 40mm corrected image circle

Specifications

 

Optical design Super apochromatic doublet with ED glass
Lens cell
Air-spaced doublet with 1 x FPL53 lens
Coatings
Broadband multi-coatings
Objective diameter
140 mm
Focal length at prime focus
980 mm
Focal ratio at prime focus
F/7
Backfocus distance at prime focus
180 mm from 2" adapter
Dovetail bar Losmandy-style bar
Dew shield diameter 186 mm
Tube diameter 152 mm
Tube length 1030 mm with dew shield extended, 830 mm with dew shield retracted
Tube weight 9.8 kg
SKU APM140-7-3.7ZTA