APM Doublet SD-Apo 140 f/7 FPL53 OTA with 3.7" focuser
The new APM 140mm f/7 Apo impresses with its high performance. We have now succeeded in developing this telescope with high-quality optics and a solid tube at a sensational price.
Includes additional optional aluminum case
The new APM 140mm f/7 Apo impresses with its high performance. We have now succeeded in developing this telescope with high-quality optics and a solid tube at a sensational price. The new 140mm f=980mm SD Apo has doublet optics with SD glass, one lens of which is made of FPL-53. That brings maximum performance. This new, innovative combination results in a color correction that is well above what is usual in this price category. In order to guarantee the typically high quality of APM telescopes, every optic undergoes an interferometric test.
The instrument is supplied with a solid 3.7" focuser. The focuser is particularly well suited for heavy accessories and offers an absolutely vignetting-free image even with large-format chips. With a focal length of 980mm, the 140mm SD-Apo is a real all-rounder. Observation from closely spaced double stars with high contrast to detailed planetary observations will be a lot of fun with this device.In addition, this new apochromat is quite light at only 9.8kg and can be used on compact mounts.
As an optional photo accessory for the SD APO 140mm f/7, we recommend our Riccardi Flattener APO Reducer 0.75xM82 (the focal length is reduced here to 735mm at f/5.25) or our Riccardi APO Flattener Model 2 for APOs. (see recommended accessories)
With the new 140mm SD-Apo we offer you an apochromatic refractor with excellent performance at an unbelievable price.
To the test report (Cloudy Nights, English)
Very high-quality workmanship and convincingly good optical quality
Pure color optics with FLP53 glass
Precise 3.7" focuser 1:10 stocky for heavy accessories
With f/7 ideal for visual and photographic purposes
Stable and well thought-out tube construction
Very good value for money
Scope of delivery :
Optical tube 140/980mm
CNC pipe clamps
3.7" focuser with 1:10 reduction
Losmandy style dovetail bar
aperture ratio f/7
viewfinder none included
eyepiece connector 2"
tube material aluminum
back focus 180mm
tube diameter 152mm
dew cap length 290mm
telescopic type Doublet ED apochromat
dew cap diameter 186mm
lens Doublet ED Apo with FPL-53 element
focal length 980mm
resolving power 0.83"
limit size 12.5 likes
Max. useful magnification 280 times
transport length 830mm
observation length 1030mm
focuser 3.7" focuser, rack and pinion 360° rotation
total weight 9.8 kg (with pipe clamps)