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Astronomy > Telescopes > Tecnosky > Tecnosky Apochromatic refractor AP 70/420 ED V2 OTA
( 4 / 5 )
Product no.: 57326

Apochromatic refractor AP 70/420 ED V2 OTA

$ 423.00 incl. VAT, plus shipping costs
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Product description

This ED refractor is an ideal telescope for travel and mobile use. The telescope weighs only about 2 kg and thanks to the retractable dew cap it is only 30 cm short.

The high-quality 2-element objective provides sharp and high-contrast images and enables magnifications of up to approx. 180x. With it you can already observe details on planets. The newly developed 2" RAP (rack and pinion) focuser is superior to standard Crayford focusers and holds even heavy photographic accessories safe. The micro-reduction is ideal for astrophotography and allows precise focusing.

The precise focuser and the powerful optics make the 70 mm ED a good telescope for astrophotography. Connect your SLR camera or astro camera to the telescope and start the adventure of astrophotography. In order to correct the image field for the photography of nebulae, star clusters and galaxies (deep-sky photography), we recommend correctors:

TS Optics Sucherschuh universal This viewfinder shoe fits directly on the focuser. Here only one of the two M4 blind screws has to be unscrewed. The finder shoe is then fastened with an M4 countersunk head screw.

The flexible plate at the base makes mounting easy. You can mount the refractor like a spotting scope or telephoto lens directly on photo tripods. With the matching dovetail bars you achieve a stable attachment to altazimuth and equatorial mounts.

Specifications

Optics


Type
Refractor
Type of build
Apochromat
Aperture (mm)
70
Focal length (mm)
420
Aperture ratio (f/)
6
Resolving capacity
1,64
Limit value (mag)
11
Light gathering capacity
100
Max. useful magnification
140
Coating
FMC
Tube weight (kg)
1,86
Tube material
Aluminium
tube diameter (mm)
77
Tube length (mm)
315
Tube construction
Full tube
lens design
Doublet

Focuser


Connection ( to eyepiece)
2
Adjustment range (mm)
73
Type of build
Crayford
Gear reduction
1:10 fine focusing
Backfocus (mm)
135

Mount


Mounting type
no mount
GoTo control
no
Type of build
OTA

Included accessories


Eyepiece adaptor
1,25" - 2"
Prism rail
L-bracket
Transport cases
no
Carry case
no
Deviating optics
no
Dew Shield
yes
Thread for camera tripod
yes

Recommended for


Beginners
no
Advanced
yes
Observatories
no

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*All prices include VAT plus shipping costs.

Tecnosky Apochromatic refractor AP 70/420 ED V2 OTA
Drawtube

Customer reviews

Tecnosky 70 mm ED

Review by F. M. on 13.03.2019 23:23:08

( 4 / 5 )

This a surprisingly well built scope,rather hefty for it's 70 mm size, allthough it weights only about 2 kg
Very good focusser, strong, holds a 2 inch diagonal with pan 35 easy even full out, no play.Turn arounds the scope with no play also
CA is very well controlled, almost not seen when in focus, off focus in daylights a bit noticable , not disturbing.
On the moon hardly visible only,very fine yellow rim, at that size not disturbing at all.
Can take magifications pretty good, to 120x,with ease Moon on 210x too much but still a view, bit washed out.
Very short tube, long dewshield.
Nice coatings, you harld see youre face it in, so very low reflexion indeed.
Little degration at the edge of field, not that much.
Overall , nice scope

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