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Explore Scientific 2" HR Coma Corrector - HRCC02-00

Explore Scientific 2" HR Coma Corrector - HRCC02-00 - Main image
$231.79 $379.99 In stock

Category: Telescope Accessories

Explore Scientific 2” HR Coma Corrector

If you have a Newtonian telescope, you are all too familiar with coma…that comet-shaped distortion stars near the edge of the field experience, particularly with modern fast Newtonians. A coma corrector is the key minimizing this off-axis optical anomaly. This Explore Scientific’s HR Coma Corrector an excellent choice for Newtonians with a 2” focuser.

The optics inside the black-anodized aluminum barrel of the Explore Scientific 2” Coma Corrector are multi-coated to reduce reflections and increase contrast. The top of the corrector has three over-sized thumbscrews to hold your eyepiece or other 2” accessory firmly in place. A rubber grip lies just below the thumbscrews, and it is textured to help you keep a firm hold when changing eyepieces or adapters, even with your gloves on.

The Explore Scientific HR Coma Corrector comes with two adapters - an M42x0.75 and an M48x1 threaded adapter that will allow you to secure a standard or oversized t-ring to the corrector.

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Customer Reviews (4.6 / 5 · 5 reviews)

Hazel ★★★★★

I was honestly surprised at how much sharper those edge-of-field stars became after installing this corrector. The threaded barrel fits my focuser perfectly, and the whole setup feels solid. First time I’ve actually enjoyed viewing the entire field without that fuzzy comet shape.

Timothy ★★★★★

The threaded barrel screwed in cleanly and the corrective effect on out-of-focus stars was immediate across the field. Flat-field astrophotography is finally possible with this corrector.

Joseph ★★★★★

Put this in my 10" f/5 and the stars are sharp right to the edge of my 2" eyepieces now. I can finally use the full field without that annoying comet shape.