Astronomy tests Orion’s grab-and-go refractor
The ED102T CF Triplet offers 4 inches of aperture, a wide field of view, and superb star images.
May 29, 2012
When Astronomy asked me to test Orion Telescopes and Binoculars’ latest 4-inch apochromatic refractor, I got excited by the potential of such an instrument. The ED102T CF Triplet boasts 4 inches (102 millimeters) of aperture and a focal length of 714mm. Those numbers work out to a photographic speed of f/7.0, making this a pretty “fast” system that offers a wide field of view for visual observing or astrophotography.
Orion’s ED102T CF apochromatic refractor has a carbon fiber tube that saves weight and minimizes thermal expansion.
Photo by Astronomy: William Zuback
Astronomy magazine subscribers can download the full review for free. Just make sure you're registered with the website.
You are currently not logged in. This article is only available to Astronomy magazine subscribers.
Already a subscriber to Astronomy magazine?
If you are already a subscriber to Astronomy magazine you must log into your account to view this article. If you do not have an account you will
need to regsiter for one. Registration is FREE and only takes a couple minutes.
Non-subscribers, Subscribe TODAY and save!
Get instant access to subscriber content on Astronomy.com!
- Access our interactive Atlas of the Stars
- Get full access to StarDome PLUS
- Columnist articles
- Search and view our equipment review archive
- Receive full access to our Ask Astro answers
- BONUS web extras not included in the magazine
- Much more!