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Astronomy > Telescopes > William Optics > Cat > William Optics Apochromatic refractor AP 91/448 RedCat 91 WIFD OTA
Product no.: 85222

Apochromatic refractor AP 91/448 RedCat 91 WIFD OTA

$ 3,580.00 incl. VAT plus shipping costs
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This product is available in the following variants:
Colour Price
black $ 3,580.00
red $ 3,580.00

Product description

More about the series Cat...

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.

Specifications

Optics

Type
Refractor
Type of build
Apochromat
Aperture (mm)
91
Focal length (mm)
448
Aperture ratio (f/)
4,9
Resolving capacity
1,52
Limit value (mag)
12,3
Light gathering capacity
170
Max. useful magnification
182
Tube weight (kg)
6,3
Tube length (mm)
556
Tube material
Aluminium
Coating
multiple
Tube construction
Full tube
lens design
Quadruplet

Focuser

Tilting Adaptor
yes
Type of build
Helical
Connecting threaded socket (camera-side)
M48 / M54
Free aperture (mm)
55
Rotating
yes

Mount

Type of build
OTA
Mounting type
no mount

Included accessories

Dew Shield
yes
Carry case
yes
Miscellaneous
Bahtinov focus mask
Prism rail
yes
Thread for camera tripod
yes
Corrector
integrated
Eyepiece adaptor
1,25" & 2"

General

Series
Cat
Colour
red

Area of application

Astrophotography
yes (very good)
Moon & Planets
yes
Nature Observation
yes
Nebulae & galaxies
yes
Sun
no (Only with appropriate Sun filter)

Recommended for

Beginners
no
Advanced
yes
Observatories
no
show more...

Product safety

Manufacturer: William Optics Co. Ltd, TW, [email protected]
Responsible person: NIMAX GmbH, Otto-Lilienthal-Str. 9, 86899 Landsberg am Lech, DE, [email protected]
Product safety

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*All prices include VAT plus shipping costs.

show more...
William Optics Apochromatic refractor AP 91/448 RedCat 91 WIFD OTA
William Optics Apochromatic refractor AP 91/448 RedCat 91 WIFD OTA
William Optics Apochromatic refractor AP 91/448 RedCat 91 WIFD OTA
William Optics Apochromatic refractor AP 91/448 RedCat 91 WIFD OTA

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