A winter favourite

When testing and setting up guiding and imaging with the Atik 383L camera on the C925 on the iOptron mount, you have to go for a nice bright, interesting target like the Orion Nebula. Unfortunately we need a spacer to make the guide camera the correct distance from the imaging camera, if we're using the off-axis guider prism unit. We could either guide or image, so here's the image, unguided, which isn't bad!