Astronomy Specialist

WILLIAM OPTICS GUIDESTAR 61 IMAGING KIT

$605.00 USD
SKU: WO-M-GS61-GD-KIT1

William Optics

Apochromatic doublet

61 mm

f/5.9

360 mm


Color: Black dovetail

 

The William Optics GuideStar 61 Imaging Kit is the perfect astrophotography telescope for beginners - just add a camera, M48 T-ring and equatorial tracking mount and you're ready to capture the cosmos!

 

 

This kit will let you capture stunning widefield vistas, including the Orion and Horsehead nebulae in a single frame (with a full-frame camera attached).

Included is the Flat61A field flattener for sharp stars across the frame, DSD 245mm Vixen-style dovetail in Black for a more secure connection to the mount, and premium soft carry case to keep the telescope protected.

The Guidestar 61 is an apochromatic refractor with a focal ratio of f/5.9 and a focal length of 360mm. Utilizing FPL-53 synthetic fluorite glass, the GuideStar 61 provides excellent aberration correction.

 

 

The Guidestar 61 provides plenty of extension to reach focus with a huge range of cameras and accessories.

 

The locking dew shield focuser allows you to easily reach the correct focus point. An extension tube is included to help reach focus with different cameras.

The Flat61 includes an M48 filter thread which will hold any standard 2" filter such as the Optolong L-Pro or L-eXtreme light pollution filters. It also includes a handy camera rotator for precise framing of targets.

Note: As the Flat61 an adjustable flattener, you must adjust the distance for your specific telescope. See the Instructions tab above.

 

Optical design

Apochromatic with FPL-53 lens

Objective diameter

61 mm

Focal length

360 mm

Focal ratio

f/5.9

Compatible flattener

William Optics Flat61A

Mount attachment

Vixen-style dovetail

Focuser

Screw-type focuser

Camera connection

M54 x 0.75, 2", M48 x 0.75 (on flattener)

Tube weight

1.82 kg (with accessories)

SKU

WO-M-GS61-GD-KIT1

 

 

  • GuideStar 61
  • Flat61A field flattener
  • M54 to 2" adapter
  • Extension tube
  • 245mm Black Vixen dovetail
  • Carry handle with finder base
  • Soft carry case

 

Note: Once you have unscrewed the rear adapter to the appropriate value in the table below, the remaining backfocus distance to make up will be 55mm from the rear M48 thread.  

Distance adjustment needed for correct backfocus

Zenithstar 61 12.9 mm
Guidestar 61 12.9 mm

 

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WILLIAM OPTICS GUIDESTAR 61 IMAGING KIT.

WILLIAM OPTICS GUIDESTAR 61 IMAGING KIT

$605.00 USD

Color

Optical design

Apochromatic doublet

Image circle

Focal ratio

f/5.9

Aperture

61 mm

Focal length

360 mm

Optical thickness

Threads

Cooled

Colour or Mono

Pixel size

Sensor dimensions

Resolution

Sensor diagonal

Quantum efficiency

Read noise

Fullwell capacity

Bit depth

FPS

Camera backfocus

Filter size

Filter size

Bandpass (FWHM)

Bandpass (FWHM)

Glass thickness

Mount type

Payload capacity

Latitude range

Dovetail saddle

Slew speed

Encoders

Periodic error correction

Counterweight shaft

Azimuth adjustment range

Internal diameter

Illuminated diameter

Compatible telescope external diameter

Weight

Length

Width

Height

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