Astronomy Specialist

ASKAR 0.75x REDUCER FOR 65PHQ

$399.00 AUD
SKU: ASA-65PHQ-R

Askar

  • M58 x 0.75 Female
  • M54 x 0.75 Male
  • M48 x 0.75 Male


 

The Askar 0.75x Flattener/Reducer for the 65PHQ is a 2.5" corrector for full frame sensors. The flattener/reducer is a quadruplet design with one element of ED (Extra-low Dispersion) glass. The 0.75x reduction factor shortens the focal ratio of the 65PHQ to f/4.8, shortening the exposure time and increasing the field of view.

When paired with this flattener/reducer, the focal length of the 65PHQ becomes 312mm, transforming it into an extremely capable widefield astrograph. The flattener/reducer has a backfocus requirement of 55mm, making it straightforward to connect common imaging trains. An internal M48 x 0.75 thread allows you to attach standard 2" filters.

 

 

 

Reduction factor 0.75 x
Telescope connection TBD
Camera connection M54 x 0.75, M48 x 0.75 (with built-in 2" filter thread)
Image circle Full frame
Backfocus distance 55 mm
Weight TBD
SKU ASA-65PHQ-R

 

 

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ASKAR 0.75x REDUCER FOR 65PHQ.

ASKAR 0.75x REDUCER FOR 65PHQ

$399.00 AUD

Optical design

Image circle

Focal ratio

Aperture

Focal length

Optical thickness

Threads

M58 x 0.75 Female, M54 x 0.75 Male, M48 x 0.75 Male

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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