The only limit to field-stop size is the inside diameter of the eyepiece’s barrel. So, for example, a 20mm 2″ eyepiece will show more sky than a 20mm 1¼” eyepiece through the same telescope.

The only limit to field-stop size is the inside diameter of the eyepiece's barrel. So, for example, a 20mm 2″ eyepiece will show more sky than a 20mm 1¼” eyepiece through the same telescope.

With four eyepieces – two 20mm and two 4mm, the user can customize to observe different celestial objects. Celestron also includes a travel tripod, a free download of Celestron’s astronomy software, ...

Travel easily with the best small telescopes for observing when going on location or sharing with friends and family: Spot ...

Combining the convenience of binoculars with the power of spotting scopes can take your birdwatching experience to new ...

The Celestron TrailSeeker 8x32 ED are a very compelling option for outdoor enthusiasts looking for a pair of binoculars that ...

We've rounded up the best binoculars for bird-watching currently on the market, complete with our expert reviews on the pairs ...

The best compact binoculars are small and lightweight in size, but mighty in optical performance and portability. These are our top pocketable picks.

Get closer to our solar companions with the best telescopes for seeing planets, just in time for April's full moon and a stunning view of Mercury. Want to focus your stargazing on our cosmic ...

The focus feels light and smooth, and the large eyepieces are easy to fit to different viewing styles. They're coated with a patented material that makes them durable and hard-wearing, and of ...

With 35mm kit, any focal length below 20mm was considered an ultra-wide angle lens, but the same length on a crop-sensor is only just into regular wide-angle territory. Here, we take a look at ...