Equipment
Rig Doctor
Diagnose your astrophotography rig — check backfocus, sampling, image scale and field of view across your telescope, camera and accessories.
Imaging train builder
— build & validate your imaging trainExample rig Saved to this deviceFilter Wheel (7-position)
20mm
ZWO ASI2600MC Pro (flange-to-sensor)
17.5mm
Calculated rig
Effective focal length
490.0 mm
native
Focal ratio
f/6.9
Image scale
1.58″/px
Well-sampled
Field of view
2.75°
2.75° × 1.84°
Backfocus — not applicable
This telescope is self-flattened in its native configuration. No fixed backfocus is required — attach your camera and reach focus with the focuser.
Effective focal length 490.0mm · ZWO ASI2600MC Pro