Astronomy Specialist

SKYWATCHER 0.77x REDUCER FOR ESPRIT 120ED

$699.00AUD
SKU: SWA-ESPRIT120FRF

Sky-Watcher


 

The Sky-Watcher 0.77x Flattener/Reducer for Esprit 120ED telescopes shortens the focal ratio of the 120ED to f/5.4 and focal length to 647mm. Exposure time is reduced by 68% when compared to the native f/7 configuration.

The illuminated and corrected image circle is 34mm, making it suitable for use with APS-C sensors and smaller.

The flattener/reducer has a back focus requirement of 95mm (55mm when paired with the included spacer and M48 adapter), making it possible to connect a wide range of imaging trains. Built-in 2" filter threads allow you to add light pollution filters with ease.

Specifications

 

Reduction factor 0.77 x
Optical design Triplet
Telescope connection M86 x 1, M78 x 1
Camera connection M78 x 1, M48 x 0.75
Image circle 34 mm
Back focus distance 95 mm, 55 mm from extension tube
Weight TBD
SKU SWA-ESPRIT120FRF
SKYWATCHER 0.77x REDUCER FOR ESPRIT 120ED.

SKYWATCHER 0.77x REDUCER FOR ESPRIT 120ED

$699.00AUD

Optical design

Image circle

Focal ratio

Aperture

Focal length

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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