30mm Ultrawide 80° 2" Eyepiece - Enhanced
Our bestselling Ultrawide 2" eyepiece just got better!
You asked, and we listened: the ultrawide optical performance remains the same, but underneath the new comfortable rubber eyecup, you'll find a concealed M49 camera thread, making this easily the most versatile combination viewing/imaging rich-field eyepiece in its price range.
Focal length: 30 mm
Apparent Field of View: 80°
Barrel: 2" / 50.75 mm
M49 camera thread
Elements: 5 elements in 3 groups
Eye relief: 22 mm
Field stop: 40.8 mm
Weight: 570g (1.2lb)
Length: 114 mm (4.5")
Blackened lens edges
Threaded for 2" filters
End cap & bolt case
The Enhanced Moonfish® 30mm 80° ULTRAWIDE is a very serious wide-angle 2" eyepiece, at a very affordable price. Contrast and correction is good for very low powered wide-angled viewing of those larger deep sky objects.
The eyepiece has five elements of fully multi-coated (FMC), high-index glass, with a high light transmission, allowing your telescope to be pushed to its magnitude limits. Field correction is good, although edge performance does begin to soften, very slightly, when used with short focal ratio telescopes, i.e. much less than F/6. There is no kidney bean effect, nor ghosting, and eye relief is an excellent 22mm. The weight of the eyepiece is surprisingly low for a 2" design at 1.2 lb / 0.6 Kg.
Concealed beneath the new rubber eyecup, great for those cold winter nights, you'll find a thread to accept M49 camera adaptors. Perfect for afocal camera imaging with a wide variety of film and digital cameras. Just find a suitable adaptor for your particular camera, available at your camera store, and you're all set.
Each eyepiece is carefully quality tested before shipping. The chrome barrel is fully threaded for 2" nebula filters, has a rubber grip, and comes with an end cap.
The following objects are prime examples of large deep sky objects that require the widest true field of view possible and will benefit most from using the Moonfish® 30mm 80° ULTRAWIDE:
The Andromeda Galaxy (M31): 3° x 1°
The Pleiades (M45): 2° x 2°
The Great Orion Nebula (M42): 1°30' x 1°
The Perseus Double Cluster (NGC884-NGC869): 1° x 30'
The Beehive Cluster (or Praesepe) (M44): 1°12' x 1°12'