Astronomy Specialist
ZWO
ZWO HELICAL FOCUSER 1.25" is backordered and will ship as soon as it is back in stock.
The ZWO 1.25" Helical Focuser allows you to precisely focus your off-axis guide camera with ease. CNC-machined and anodized aluminium with anti-skid brass screw for secure clamping.
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