Astronomy Specialist

FINE TUNING SPACER RING M48 3mm

$39.00
SKU: AX-M48-EXT3

  • Optical thickness: 3 mm


 

This 3mm extension ring is useful for achieving the correct back focus required for astrophotography, where a few millimetres are critical.

The extension ring has an M48 x 0.75 male thread on one side and an M48 x 0.75 female thread on the other side. The optical thickness is 3mm.

 

Specifications

 

Thread
M48 x 0.75 (2" filter thread)
Length of female thread 2.5 mm
Length of male thread 2.5 mm
Optical thickness 3 mm (without male thread)
Outer diameter 50.9 mm
SKU AX-M48-EXT3
FINE TUNING SPACER RING M48 3mm.

FINE TUNING SPACER RING M48 3mm

$39.00

Optical design

Image circle

Focal ratio

Aperture

Focal length

Optical thickness

Optical thickness: 3 mm

Threads

M48 x 0.75 Male, M48 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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