Sensor frame · 44′ × 1.3°
250mm f/5.0 integrated camera
5.6 × 3.2mm sensor
Comfortable margin· Whirlpool is 11′ across, 25.0% of the 44′ short edge
Room around the target for surrounding nebulosity and stars — often the better picture.
A face-on spiral — its companion NGC 5195 is visible as a second smudge even in modest apertures.