QHY990M SCIENTIFIC SWIR CAMERA [MONOCHROME] Model:QHY990 The external diameter of the

The external diameter of the adapter 70mm

as shown in the pictures above (see options for further details)

The 533M includes an adjustment mechanism to correct this

Automatically maintains mirror temperature set point as outside temperature changes

ESATTO 3" adapter for SkyWatcher Esprit 100

QHY990M SCIENTIFIC SWIR CAMERA [MONOCHROME] Model:QHY990 The external diameter of theThe QHY990M is a scientific cooled short wavelength infrared (SWIR) camera featuring the Sony IMX990 InGaAs sensor with a square 5m x 5m pixel array and 1. 3 Megapixels. This chip has a wide waveband (0. 4um 1. 7um) with high sensitivity. QE is up to 77% at 1200nm. By using Cu Cu interconnect technology, the sensor has very low fixed pattern noise and a low pixel defect ratio. Both QHY990M and QHY990M PRO II include a 25mm filter holder. The 25mm