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Telescopes > Tecnosky > Owl > Tecnosky Apochromatic refractor AP 90/540 OWL Triplet OTA
Product no.: 71207

Apochromatic refractor AP 90/540 OWL Triplet OTA

$ 1,630.00 incl. VAT, plus shipping costs
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Product description

Tecnosky 90/560 mm FPL55 Apochromat, OWL Series

This apochromatic refractor features a triplet objective with central Ohara FPL55 fluoride glass element. All lenses are blackened at the edges and FMC coated. The supplied optical measurement report shows a Strehl of min. 0.95!

The aluminum tube is equipped with lens hoods. The retractable dew shield makes the apo very transportable and even has room in airplane luggage.

The generously sized focuser illuminates full-frame cameras and allows precise focusing with 1:10 dual speed. The integrated field rotator allows the camera to be rotated to the desired orientation for best framing. The 2" and 1.25" accessories are clamped gently. In addition, the focuser offers an auxiliary thread for screw adaptations.

Included is a dovetail bar (Vixen style). Other dovetailss can be connected, including Losmandy style ones. A carrying handle allows convenient transport and also mounting of accessories such as guiding scopes.

For photographic use, Tecnosky offers an optional 0.8x flattener/reducer that gives the apochromat a fast focal ratio of f/5.

It not only matters which telescope you buy but also where you buy it. Our additional services:

  • We are a leading telescope dealer and know the devices we sell. Our customer service team will gladly help you after your purchase if you have problems with assembly or operation.
  • We provide a copy of the 80-page Telescope ABC beginners handbook with every telescope.
  • We also provide an edition of the exciting astronomy magazine, “Sterne und Weltraum” with each telescope.

Specifications

Optics


Type
Refractor
Type of build
Apochromat
Aperture (mm)
90
Focal length (mm)
540
Aperture ratio (f/)
6,0
Resolving capacity
1,53
Limit value (mag)
12,3
Light gathering capacity
170
Max. useful magnification
180
Tube material
Aluminium
Tube weight (kg)
4,8
tube diameter (mm)
101
Stray light baffles in the OTA
yes
Tube construction
Full tube
lens design
Triplet
Carrying length (mm)
480
Coating
FMC
Tube length (mm)
520 (Dew Shield)

Focuser


Connection ( to eyepiece)
2
Type of build
Gear rack
Free aperture (mm)
72
Gear reduction
1:10 Fine movement
Rotating
yes

Mount


Mounting type
no mount
GoTo control
no
Type of build
OTA

Included accessories


Eyepiece adaptor
1,25" - 2"
Prism rail
Vixen-Style
Tube clamps
yes
Dew Shield
yes
Transport cases
yes
Deviating optics
no
Finder scope
without
Carrying handle
yes
finder base
Vixen/Skywatcher Level
Miscellaneous
certificate

General


Series
Owl
Total weight (kg)
4,9

Area of application


Astrophotography
yes (very good)
Moon & Planets
yes
Nebulae & galaxies
yes

Recommended for


Beginners
not recommended
Advanced
yes
Observatories
no

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*All prices include VAT plus shipping costs.

Tecnosky Apochromatic refractor AP 90/540 OWL Triplet OTA
Tecnosky Apochromatic refractor AP 90/540 OWL Triplet OTA
Tecnosky Apochromatic refractor AP 90/540 OWL Triplet OTA
Tecnosky Apochromatic refractor AP 90/540 OWL Triplet OTA
Tecnosky Apochromatic refractor AP 90/540 OWL Triplet OTA

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