This telescope is checked, measured and adjusted if necessary before delivery. The focuser is set. Upon request, you will receive a meaningful quality certificate from your telescope (test report with star test, Ronchi, adjustment, with individual serial number) included! Please specify with order!
Examples of our test protocols: test recordings
How we adjust: About us

 Tecnosky apochromatic refractor AP 70/350 Quadruplet AG OTA

The 70/350 Quadruplet AG70 enters the family of Tecnosky refractors ... in the best way! With 45mm corrected field, the AG70 is perfect for full frame cameras.

The AG70 is a Petzval with Lanthanum glass to guarantee a proper field of 45mm, totally free of color aberration and sharp to the edges! All optics are fully multiy coated. Despite being a very small and compact tube it is equipped with the new 2.5 "R&P focuser that holds loads up to 3kg! The focus tube ends with a rotatable M48x0.75 thread. It weighs only 2.1 kg including tuberings!

Technical features:

Petzval quadruplet 70 / 350mm
BFMC anti-reflective coating
Lanthanum glass
Weight 2.1kg with rings and vixen bar
Focuser R&P 2.5 ”magnesium micrometric with reduction 1:10
Offsettable rotator M48x0.75
Correct field greater than 45mm




Including:

AG70 Petzval refractor
Tuberings and dovetail (Vixen style)

Technical specifications:

optics

type refractor
Apochromat Quadruplet design
Opening (mm) 71
Focal length (mm) 347
Opening ratio (f /) 4.9
Resolving power (arc seconds) 1.62
Limit size (mag) 11.1
Light collecting capacity (-fold a 7mm pupil) 100
Max. Sensible enlargement (-fold) 142
Tube length (mm) 325
aluminum tube material
Coating multiple
Tube weight (kg) 2.05
Full tube Tubuskonstruktion
Okularauszug

Connection (eyepiece side) (inch) 2
Connection thread (camera side) M48
Back focus (mm) 75
Type rack
Free opening (mm) 64
Load capacity (kg) 5
Reduction 1:10 fine drive
mount

Mount type without mount
GoTo control no
type OTA
Included accessories

Thread connection for photo tripod yes
Dovetail Vixen Style
Pipe clamps Yes
No carrying case
Taukappe yes
no deflecting
Finderscope no
corrector integrated
application areas

Astrophotography yes (very good)
Nature observation no
Sun no (only with a suitable sun filter)
Recommended for ...

beginners no
advanced yes
Observatories no