Image Scale (Sampling): At 800 mm focal length with 3.76 mu pixels, my resolution is exactly 0.97 arcseconds per pixel. This provides razor-sharp details for galaxies and nebulae without oversampling under average atmospheric seeing conditions.
Sensor Synergy: The CarbonStar 200’s secondary mirror is specifically optimized to fully illuminate an APS-C sensor. Changing the ROI to a smaller crop would discard the wide field of view that this telescope was purposefully engineered to project onto my ASI2600 MC Pro.
Framing Flexibility: Large nebulas (like the Orion or Rosette Nebula) will fit beautifully into full frame. For smaller, distant galaxies, keeping the full sensor offers plenty of surrounding space to capture background starfields and satellite galaxy clusters, which can be cropped later during post-processing.
