Field Flattener f/5 to f/7 Congrats Handmade in small batches

Handmade in small batches

The Explore Scientific field flattener is designed to work with telescopes with focal ratios between f/5 and f/7

Learn more about Sam Larson's art and his ongoing projects by following him on Instagram @samlarson

The floral motif feels calm and fresh without fading into the background

Let The Fun Begin"

Field Flattener f/5 to f/7 Congrats Handmade in small batchesWhen doing astrophotography with refractor type telescopes, the faster the focal ratio the more field curvature becomes a problem. Field curvature will appear in the corners of astrophotographs, making the stars smear perpendicular to the axis of the image. This is called coma coma is Latin for comet, because the stars look like comets. The more the curvature, the closer to the center the coma appears. The larger the sensor, the worse the coma.