Without getting too bogged down in the science, extra-low dispersion glass prevents or at least minimizes chromatic aberration (color fringing). Chromatic aberration usually occurs when there is a big contrast between light and dark objects, say a star, the moon, or in daylight, a dark object in front of a bright blue sky. The better the aberration is controlled, the cleaner and brighter the image will be.
Amazon is offering the Celestron TrailSeeker 8×42 ED binoculars for $325.13 (opens in new tab), but with an extra $30 coupon applied at checkout, bringing the price to less than $300 (opens in new tab) — almost as cheap as the non-ED version! We haven’t seen them at that price since 2019, so if you’ve been waiting for a good price, now seems to be the perfect time to snap them up.
We did a hands-on Celestron TrailSeeker 8×42 review earlier this year and concluded that they strike an excellent balance between quality, affordability and portability.
Although there are also 8×32 (opens in new tab), 10×32 (opens in new tab) and 10×42 (opens in new tab) binocular models in the TrailSeeker range of binoculars (all of which are also generously reduced), we at Space.com like the 8×42. The low magnification and wide-eyed view are ideal for astronomers to scan the sky, explore the Milky Way and look for constellations without being too ‘zoomed in.’
Also, unlike accessories supplied with some binos, the ones you get with the TrailSeeker range are all high quality and practical. There is a useful neck strap, a back-ventilated harness strap, a carry case and a cloth. The harness is an innovative contraption that will take the weight of the binoculars away from your neck, allowing for comfier observing sessions, especially if you’re out for a long time.
The eye relief is 17mm thanks to the twist-up eyecups — which can be placed in three different positions — so spectacle wearers can be assured of a comfortable and immersive experience.
While we loved the Celestron TrailSkeeker 8×42 binoculars (opens in new tab), we found a hint of color fringing. We said that anyone wanting even better views of the night sky — and who didn’t mind paying for the privilege — to consider the ED version.
Now there is little price difference thanks to Amazon’s Black Friday deal (opens in new tab), so getting the ED pair now makes sense.
If you’re looking for other binocular deals, there’s a team of sky-loving deal hunters here at Space, live-sourcing the best Black Friday deals with you. Have a look at our best binoculars page to see our top picks.