Shop Magazine
%SALE%
EN / $
✓ Europe's largest sport optics specialist
✓ 7,500+ items available from stock
✓ Personal advice & service
Get closer
Binoculars Spotting scopes Digiscoping Night vision Rangefinders Outdoor Tripods Microscopes % SALE %
Astronomy > Telescopes > William Optics > Cat > William Optics Apochromatic refractor AP 51/178 MiniCat WIFD OTA
Product no.: 84908

Apochromatic refractor AP 51/178 MiniCat WIFD OTA

$ 1,230.00 incl. VAT plus shipping costs
too expensive?
in stock
ready for shipping in 24 h + lead time
Express shipment possible for delivery tomorrow, 22.01.2025!
Product questions?
advice for Astronomy

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)
51
Focal length (mm)
178
Aperture ratio (f/)
3,5
Resolving capacity
2,71
Limit value (mag)
12,3
Light gathering capacity
50
Max. useful magnification
102
Tube weight (kg)
1,67
Tube length (mm)
274
Tube material
Aluminium
Coating
multiple
Tube construction
Full tube
dew cap diameter (mm)
80
lens design
Quintuplet
Glass material
OHARA FPL-53
Fully Corrected Field (mm)
43,2

Focuser

Tilting Adaptor
no
Type of build
Internal
Connecting threaded socket (camera-side)
M48
Backfocus (mm)
59
Free aperture (mm)
48
Rotating
yes

Mount

Type of build
OTA
Mounting type
Azimuthal

Included accessories

Dew Shield
yes
Carry case
yes
Miscellaneous
Bahtinov focus mask
Prism rail
Arca-Swiss & Vixen-Style
Thread for camera tripod
yes
Corrector
integrated

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

Recommended accessories

Media (2)
Star chart

Omegon Star chart Planisphere

$ 14.90*
+ Show more accessories in this category: 1
Outdoor (3)
Headlamp

Omegon LED headlamp

$ 13.90*
+ Show more accessories in this category: 2
Astronomy > Telescope accessories (32)
Carry case

Omegon carry case for 5" tubes/lenses

$ 81.50*
+ Show more accessories in this category: 31
Astronomy > Eyepieces (3)
Reticle eyepieces

Omegon Reticle eyepieces Illuminated crosshair eyepiece, 12.5mm

$ 89.00*
+ Show more accessories in this category: 2
Astronomy > Filters (9)
Filters

Omegon Filters Moon filter 1.25"

$ 19.90*
+ Show more accessories in this category: 8
Maintenance & Cleaning > Lens cleaners (3)

Omegon 7-in-1 lens cleaning set

$ 19.90*
+ Show more accessories in this category: 2
Maintenance & Cleaning > Other (2)

Omegon microfibre cleaning cloth 20cm x 20cm

$ 4.90*
+ Show more accessories in this category: 1

*All prices include VAT plus shipping costs.

show more...
William Optics Apochromatic refractor AP 51/178 MiniCat WIFD OTA
William Optics Apochromatic refractor AP 51/178 MiniCat WIFD OTA
William Optics Apochromatic refractor AP 51/178 MiniCat WIFD OTA
William Optics Apochromatic refractor AP 51/178 MiniCat WIFD OTA
William Optics Apochromatic refractor AP 51/178 MiniCat WIFD OTA

Customer reviews

There are no customer reviews for this product yet.

Compose your own review

Do you have specific questions about your order or products? Please contact our customer service!

Add your review now

Customers who bought this product also bought...

Auriga Eyepiece Ultra Wide Angle 13mm
$ 129.00
Auriga Eyepiece Ultra Wide Angle 13mm
 ZWO Electronic Automatic Focuser EAF Standard (5V)
$ 278.00
ZWO Electronic Automatic Focuser EAF Standard (5V)
 Celestial Buddies Our Precious Planet
$ 34.90
Celestial Buddies Our Precious Planet
 Omegon Newton adjusting laser 1,25'' (inspection window)
$ 59.00
Omegon Newton adjusting laser 1,25'' (inspection window)
 William Optics Apochromatic refractor AP 71/350 RedCat 71 OTA
$ 2,160.00
William Optics Apochromatic refractor AP 71/350 RedCat 71 OTA
 Skywatcher Eyepiece Nirvana-ES UWA 82° 4mm 1.25"
$ 104.00
Skywatcher Eyepiece Nirvana-ES UWA 82° 4mm 1.25"