Pay in 4 interest-free payments of $30.00 Learn more
Ships within 48 hours · Estimated delivery Aug 31 - Sep 5
this combo is built to elevate every observing session
Width 70mm
Download Manual Here
txt” file
contrast-rich views
Field Flattener f/5 to f/7 Aperture_1. 21mm - 34mm this combo is built toWhen doing astrophotography with refractor type telescopes, the faster the focal ratio the more field curvature becomes a problem. Field curvature will appear in the corners of astrophotographs, making the stars smear perpendicular to the axis of the image. This is called coma coma is Latin for comet, because the stars look like comets. The more the curvature, the closer to the center the coma appears. The larger the sensor, the worse the coma.
US$ 24.95
US$ 78.86
US$ 200.00
