a b c d "The 5.7×28mm SS190 Ammunition". FN Herstal. 2002. Archived from the original on 2002-02-14 . Retrieved October 15, 2011. Tiny lenses (21mm / 22mm) are for those requiring the smallest, most lightweight instrument possible, but be aware this comes at the expense of image brightness and potentially image quality as well.

a b c d e f "FNH USA 2009 Product Catalog" (PDF). FNH USA. 2009. Archived from the original (PDF) on July 11, 2011 . Retrieved February 1, 2010. Binoculars with a powerful magnification are in theory able to deliver greater image detail than those with lower powers. Or to put it another way, you are often able to see more at greater distances with more powerful binoculars. a b c d e f g h i j "Responses to Frequently Asked Questions about 5.7×28mm Ammunition and Firearms Systems". FNH USA. 2006. Archived from the original on April 11, 2006 . Retrieved February 1, 2010. Because these are fixed focus binoculars (often mistakenly referred to as self focusing or auto focus binoculars), once you have set each individual eyepiece to your particular eyesight and the binocular is thus focussed to the hyperfocal distance, you then no longer have to make any further adjustments and the binoculars will provide you with sharp views of everything from 20 metres away to infinity. Fixed focus binoculars like these have a large depth of field allowing your eyes to make the adjustments rather than the binoculars. NATO - STANAG 4509 TECHNICAL PERFORMANCE SPECIFICATION PROVIDING FOR THE INTERCHANGEABILITY OF 5.7 mm x 28 AMMUNITION". globalspec.com. 4 December 2020. Archived from the original on 10 April 2021 . Retrieved 9 March 2021.It is interesting to me that Minox have decided to use a 7x magnification on these binoculars - most 28mm compacts tend to have either an 8x or 10x magnification. The upshot to this is that you really get a nice and wide field of view through these and obviously the image is easier to hold steady. I imagine the other reason is that with lower powered binoculars, you also get a better depth of view where the distance from the hyperfocal distance to infinity is greater, which for fixed focus binoculars is extremely important. The theme of extreme high quality continues with the use of the same dielectric coated Schmidt-Pechan prism system that Maven use in their very high end, full sized B.1 and B.3 binoculars. Another good use for them would be on a boat. Now I know that they have not been specifically designed as marine binoculars and if that was your main intended use for them I would suggest getting a proper set of marine optics, but for occasional use on a boat they would work well. Their 7x magnification makes them easier to keep a still image even on a moving platform like a boat, they are waterproof and their fixed focus design means you get a really good depth of field, great for looking out over the water. In the marketing material Minox state that these binoculars use "hightech optical glass", which to be honest does not mean a whole lot to me.

a b c Bahde, Dave (November 2009). "FNH Five-seveN ODG 5.7×28mm". Combat Handguns. Archived from the original on July 17, 2010 . Retrieved November 28, 2009.However and as you probably know, the pupils in your eyes expand in low light conditions, allowing them to take in more light. Their maximum diameter varies from person to person and with age, but in general, we take 7mm as being a good rule of thumb. Thus if you want a binocular with an excellent low light performance, you need a large exit pupil of around 7mm. To achieve this you either need extremely large lenses or a very low power, or a combination of both. So, for example, a popular low light binocular is a 7x50 and has a 7.1mm exit pupil (50÷7). Maven C.2 compact binoculars are fog and waterproof and like most compacts, the chassis is made from a polycarbonate plastic. It is a slight shame that it is not magnesium, but then again it will be more lightweight. So whilst you do get more image detail with a higher magnification like 10x or 12x, you may have to pan the view about to get a complete view of everything that is going on or indeed miss out on something important altogether. Pistol, DISSENT, Mk57, 5.7x28MM, 6.5" | CMMG - AR 15 and AR 10 Builds and Parts". 2023-03-25. Archived from the original on 2023-03-25 . Retrieved 2023-06-14. MPA5700DMG 5.7x28mm Carbine - MasterPiece Arms, Inc". 2022-05-19. Archived from the original on 2022-05-19 . Retrieved 2023-10-04.