Explore Scientific 152mm f/6.5 Achromatic Refractor with Accessories - Camera Concepts & Telescope Solutions

Explore Scientific 152mm f/6.5 Achromatic Refractor with Accessories

Explore Scientific AR152 Air-Spaced Doublet Refractor Telescope - DAR1

When 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.

Explore Scientific Field Flattener for f/5 to f/7 Refractors

Explore Scientific 152 mm Achromatic Refractor OTA and Accessories

Explore Scientific 152mm Achromat Refractor Telescope - DAR152065-02

This 6 Explore Scientific AR152 achromatic refractor optical tube is a sensational value - a big 6 (152mm) and fast f/6.5 refractor that's priced

Explore Scientific AR152 6 f/6.5 achromatic doublet refractor optical tube

Explore Scientific 152mm f/6.5 Achromatic Refractor with Accessories - Camera Concepts & Telescope Solutions

The ED152 Air-Spaced Triplet FCD1 Series in Carbon Fiber with 3 HEX Focuser represents perhaps the greatest value in a large aperture ED Apochromatic refractor available today. The 6-inch f/8 optics produce diffraction-limited images producing high resolution images of planets and deep sky objects.

Explore Scientific ED152 Air-Spaced Triplet Carbon Fiber Telescope

Explore Scientific's AR152 Air-Spaced Doublet is a diffraction-limited six inch f/6.5 refracting telescope complete with mounting rings, 8x50 finderscope, and two-speed two-inch focuser. Perfect for those who want large refractor performance at a modest price. Great planetary and deep sky visual or astrophotography!.

Explore Scientific AR152 152mm f/6.5 Doublet Refractor Telescope

Explore Scientific AR152 6 f/6.5 achromatic doublet refractor optical tube

Explore Scientific AR152 6 f/6.5 achromatic doublet refractor optical tube

When 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.

Explore Scientific Field Flattener for f/5 to f/7 Refractors