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 51/250 RedCat WIFD OTA
Product no.: 82930

Apochromatic refractor AP 51/250 RedCat WIFD OTA

$ 1,190.00 incl. VAT plus shipping costs
too expensive?
in stock
ready for shipping in 24 h + lead time
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.

Our expert comment:

The RedCat 51 is probably one of William Optics’ most loved apochromats and not without good reason. It delivers perfect astrophotos of deep-sky objects and is easily transportable due to its small size.

(Jan Ströher)

Specifications

Optics

Type
Refractor
Type of build
Apochromat
Aperture (mm)
51
Focal length (mm)
250
Aperture ratio (f/)
4,9
Resolving capacity
2,71
Limit value (mag)
10,3
Light gathering capacity
50
Max. useful magnification
102
Tube weight (kg)
2,4
Tube length (mm)
346
Tube material
Aluminium
Coating
multiple
Tube construction
Full tube
dew cap diameter (mm)
80
lens design
Quadruplet

Focuser

Tilting Adaptor
yes
Type of build
Internal
Connecting threaded socket (camera-side)
M48
Backfocus (mm)
59,7
Free aperture (mm)
48
Adjustment range (mm)
0-23
Rotating
yes

Mount

Type of build
OTA
Mounting type
no mount

Included accessories

Dew Shield
yes
Carry case
yes
Miscellaneous
Focusing Mask
Prism rail
Arca-Swiss & Vixen-Style
Corrector
integrated

General

Series
Cat
Colour
red

Area of application

Astrophotography
yes (very good)
Moon & Planets
yes
Nature Observation
no
Nebulae & galaxies
yes
Sun
yes (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 (30)

Omegon DUNEDRY dehumidifier

$ 29.90*
+ Show more accessories in this category: 29
Astronomy > Eyepieces (6)
Reticle eyepieces

Omegon Reticle eyepieces Illuminated crosshair eyepiece, 12.5mm

$ 89.00*
+ Show more accessories in this category: 5
Astronomy > Filters (9)
Filters

Omegon Filters Moon filter 1.25"

$ 19.90*
+ Show more accessories in this category: 8
Maintenance & Cleaning > Lens cleaners (4)

Zoomion cleaning system

$ 7.90*
+ Show more accessories in this category: 3
Maintenance & Cleaning > Other (2)

Omegon microfibre cleaning cloth 20cm x 20cm

$ 5.90*
+ Show more accessories in this category: 1

*All prices include VAT plus shipping costs.

show more...
William Optics Apochromatic refractor AP 51/250 RedCat WIFD OTA
William Optics Apochromatic refractor AP 51/250 RedCat WIFD OTA
William Optics Apochromatic refractor AP 51/250 RedCat WIFD OTA
William Optics Apochromatic refractor AP 51/250 RedCat 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...

Oklop Carry case Padded Bag For Small Telescopes
$ 64.00
Oklop Carry case Padded Bag For Small Telescopes
 ZWO ASIAIR Plus 256GB
$ 550.00
ZWO ASIAIR Plus 256GB
 Skywatcher Mount Star Adventurer GTi Wi-Fi GoTo SET
$ 790.00
Skywatcher Mount Star Adventurer GTi Wi-Fi GoTo SET
 William Optics Camera adaptor M48 compatible with Canon EOS
$ 64.00
William Optics Camera adaptor M48 compatible with Canon EOS
 ZWO Tripod TC40 for AM5 / AM3
$ 432.00
ZWO Tripod TC40 for AM5 / AM3
 Omegon SWA 32mm, 2” eyepiece
$ 159.00
Omegon SWA 32mm, 2” eyepiece