Vixen SG 2.1x42 Constellation Binoculars
Enjoy incredible views of the Milky Way galaxy, nebulae, star clusters, and more with these Vixen SG Constellation Binoculars. Made up of five multi-coated elements, these binoculars feature a low 2.1x magnification and 42mm objective lens that brightens stars to bring out the exceptional contrast between them and dark nebulae. Individual focus adjustment for each eyepiece. Includes soft case, neck strap, and eyecups.
Vixen Product Number: 19172
- Additional Information
SKU VX-19172 Manufacturer Vixen Activity Astronomy Lens Aperture 42mm Magnification 2.1X Eye Relief 8.4mm Close Focus 6.6 ft. Optical Coatings Multi-Coated Interpupillary Distance Range 55mm - 74mm Includes Case? Yes Weight 1 lb. Dimensions 1.8" x 5" x 0.7" Warranty Lifetime Warranty
- Included Items
- Vixen SG 2.1x42 Constellation Binoculars
- Soft Case
- Neck Strap
- Questions & Answers
Product QuestionsWhy the large exit pupil???
Isn't the 42 mm aperture excessive for this application? (A 7mm exit pupil would imply a 14.7 mm useful aperture for a fully dark adapted eye).
Or, does this aperture provide other advantages?Question by: ENRICO on Aug 7, 2015 10:08:00 AMYou are correct in that the human eye cannot take in more than ~7mm exit pupil. The extremely large exit pupil here allows your eyes to "look around" inside the binoculars and still have your pupils inside the fully illuminated exit pupil. Having looked through these binoculars, they are still impressively wide and allow excellent views of the Milky Way from a dark location.Answer by: Chris Hendren (Admin) on Aug 7, 2015 10:37:00 AM
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