John Greig Astrophotography
Equipment

The kit

A modest-aperture refractor setup optimised for portability and narrowband imaging from a Bortle 7 garden. Most of the data on this site was acquired with this rig.

Current astrophotography rig

Mount

  • Sky-Watcher EQ6-R Pro

    Belt-driven equatorial mount, ~20kg payload.

Optics

  • ASKAR 120mm APO

    120mm APO triplet with field flattener.

  • Sky-Watcher Evostar 80ED

    80mm ED doublet with 0.8× reducer/flattener.

Cameras

  • ZWO ASI 071MC Pro

    Cooled OSC, 16MP APS-C sensor. Main imaging camera.

  • ZWO ASI 120MM Mini

    Mono guide camera.

Filters

  • Optolong L-Pro

    Broadband light pollution suppression for galaxies.

Software

  • N.I.N.A.

    Acquisition and sequencing.

  • PHD2

    Autoguiding.

  • Siril

    Stacking and pre-processing.

  • GraXpert

    Gradient and background removal.

  • Photoshop

    Final stretch and finish.