Astronomy Specialist

M42 VARIABLE EXTENSION 15 - 18mm

$159.00 AUD
SKU: AX-M42-VAR-EXT15-18

  • M42 x 0.75 Male
  • M42 x 0.75 Female
  • Optical thickness: 15 - 18 mm

This variable length adapter consists of a male M42 x 0.75 thread on one end and a female M42 x 0.75 thread on the other. Optical thickness of the adapter can be adjusted between 15 - 18mm.

This is very useful for connecting accessories such as filter drawers or filter wheels to correctors which require a very specific backfocus distance.

 

Optical length 15 - 18 mm
Clear aperture 38 mm
Outer diameter 56 mm
Connection side A
 Female M42 x 0.75
Connection side B Male M42 x 0.75
SKU AX-M42-VAR-EXT15-18

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M42 VARIABLE EXTENSION 15 - 18mm.

M42 VARIABLE EXTENSION 15 - 18mm

$159.00 AUD

Optical design

Image circle

Focal ratio

Aperture

Focal length

Optical thickness

Optical thickness: 15 - 18 mm

Threads

M42 x 0.75 Male, M42 x 0.75 Female

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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