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Telescopes > William Optics > ZenithStar > William Optics Apochromatic refractor AP 61/360 ZenithStar 61 Blue OTA
Product no.: 55192

Apochromatic refractor AP 61/360 ZenithStar 61 Blue OTA

$ 590.00 incl. VAT, plus shipping costs
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Product description

More about the series ZenithStar...

The William Optics’ ZenithStar range consists of compact yet very high-quality apochromats which are ideally suited for use with a DSLR camera. With these, you can capture excellent wide-angle images of large star fields. Combined with an optional flattener, these provide a corrected image field with a diameter of 45 millimetres right up to the edges.

The lightweight and compact ZenithStar apochromat and a DSLR fit well on a photography mount, such as the Skywatcher Star Adventurer or the iOptron Star Tracker - a simple, lightweight astrophotography system.

Z 61: Small can be this beautiful

The new ZenithStar 61 and William Optics’ most versatile and lightest weight apochromats.

Its clear optics allow high magnifications and sharp imaging during astrophotography and nature photography using any SLR camera. Thanks to its large visual field, the entire Moon or (with a filter) the Sun can be viewed at once. A special flattener for photography is available in the accessories section.

The FPL-53 glass, which is built into the ZenithStar 61's lens, has considerably better dispersion properties than the previously used FPL-51 (ED). FPL-53 is very close to fluoride glass in terms of quality but is considerably cheaper. Therefore, FPL-53 is sometimes also referred to as synthetic fluoride.

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


Tube weight (kg)
1,5
Resolving capacity
1,89
Type of build
Apochromat
Focal length (mm)
360
Limit value (mag)
10,7
Light gathering capacity
80
Max. useful magnification
122
Aperture (mm)
61
Aperture ratio (f/)
5,9
Tube material
Aluminium
Type
Refractor
Tube length (mm)
300
Carrying length (mm)
230
Tube construction
Full tube
lens design
Doublet

Focuser


Gear reduction
1:10 Fine movement
Adjustment range (mm)
75
Type of build
Gear rack
Free aperture (mm)
51
Connecting threaded socket (camera-side)
M48
Connection ( to eyepiece)
2

Mount


Mounting type
no mount
Type of build
OTA

Included accessories


Miscellaneous
Bahtinov focus mask
Dew Shield
yes
Corrector
without
Tube clamps
yes
Prism rail
L-bracket
Finder scope
no
Deviating optics
no
Eyepiece adaptor
1,25" - 2"
Transport cases
no
Thread for camera tripod
1/4" & 3/8"

General


Total weight (kg)
1,5
Series
ZenithStar
Colour
blue

Area of application


Astrophotography
yes (very good)
Nature Observation
yes

Recommended for


Beginners
no
Advanced
yes
Observatories
no

Recommended accessories

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Amici prism

Omegon 1,25'' Amici Prism 90°

$ 169.00*
Telescope accessories > Transport & storage (9)

Geoptik EPH 30B050 carrying case

$ 76.00*
Telescope accessories > Other (7)

William Optics Rotolock M54 2" Silver

$ 141.00*
Eyepieces (5)
Eyepiece

Omegon LE Series Eyepiece, 12.5mm, 1.25''

$ 149.00*
Eyepieces (4)
Eyepiece

Omegon SWA 32mm, 2” eyepiece

$ 159.00*
Eyepieces > Other (4)

Omegon eyepiece and accessories case, large

$ 249.00*
Filters > Moon filters & Polarizing filters (4)
Filters

Omegon Filters Moon filter 1.25"

$ 19.90*
Filters > Nebulae filters (8)
Filters

Omegon Filters Nebula/ city light filter 1.25 ''

$ 39.90*
Filters > Other (2)
Filters

Omegon Filters Color filter set 1,25'' (6 pieces)

$ 69.00*
Astrophotography > Camera adaptor (4)
Projection adapter

Omegon Camera adapter 1.25"

$ 24.90*
Astrophotography > Camera mounts (4)

Omegon Easypic Universal Smartphone Adapter

$ 129.00*
Astrophotography > Other (4)

William Optics Flattner Flat61A for Z61

$ 337.00*
Mountings & accessories > Mounting plates and rails (3)

Omegon 180mm prism rail with screw

$ 59.00*
Mountings & accessories > Other (2)
Mount

iOptron Mount SkyGuider Pro

$ 740.00*
Observatories (1)

Omegon Tent observatory

$ 189.00*
Media (3)
Star chart

Omegon Star chart Planisphere

$ 14.90*
Outdoor (2)
Headlamp

Omegon LED headlamp

$ 13.90*
Astronomy (1)
Amici prism

Baader Amici prism 90° 2"

$ 319.00*
Globes & Maps (1)
Continental map

Oculum Verlag Sky Quality Map Europe

$ 18.90*
Solar Observation (2)

Baader Sun filter foil 20 x 29 cm

$ 31.90*
Maintenance & Cleaning > Lens cleaners (3)

Omegon 7-in-1 lens cleaning set

$ 19.90*
Maintenance & Cleaning > Other (2)

Omegon microfibre cleaning cloth 20cm x 20cm

$ 4.90*
Miscellaneous (1)

Star In A Star Moon Hat

$ 17.90*

*All prices include VAT plus shipping costs.

William Optics Apochromatic refractor AP 61/360 ZenithStar 61 Blue OTA

Here you can see all colour variants with a Bahtinov mask attached for focusing.

William Optics Apochromatic refractor AP 61/360 ZenithStar 61 Blue OTA
Example

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