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Telescopes > William Optics > Cat > William Optics Apochromatic refractor AP 51/250 SpaceCat WIFD OTA
Product no.: 83498

Apochromatic refractor AP 51/250 SpaceCat WIFD OTA

$ 1,150.00 incl. VAT, plus shipping costs
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Product description

More about the series Cat...

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
Helical
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
silver

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...

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*All prices include VAT plus shipping costs.

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

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