My estimation as to the size of the sweet spot with this model would be between 65-70% of the field of view. The first 15-20% of the out of focus image appears to be astigmatism with field curvature occurring in the last 15-20% of the field of view. However, if you register the binocular with them online, they then upgrade it to their Premium guarantee that grants you an unlimited warranty and a full repair warranty for life which I am sure you will agree is impressive. The Bresser Nautic waterproof binoculars come with a high-quality soft case and a practical neck strap. The quality also extends to the accessories as all models come supplied with a real leather bag as standard.

Whilst both the 8x56 and these 8x42 Bresser Pirsch ED binoculars are tripod adaptable, with the 56 version you have to be careful to choose an adapter that will fit in between the much narrower gap between the thicker and longer barrels (see the image on the right). The BRESSER S-Series 8×42 is a roof prism binocular with a magnification of 8x and an optical aperture of 42mm.Whether you´re walking in the mountains, observing the Eifel tower or watching a sports event, these all-round binoculars are guaranteed to provide the perfect view in all types of situations. The one mechanical area I found “acceptable” but not very good or excellent was the rotating eyecup feel.

The dioptre setting is on the right barrel, and while it’s not calibrated or lockable in any way, it’s easy to set and stays in place well while you’re out in the field. Discovery and related logos are trademarks of Discovery or its subsidiaries and affiliates, used under license.Pictured, from the left to right, are the Sightron Blue Sky 32 mm, the Bresser Everest 42 mm and the Zen Ray 43 mm binoculars. When you want to observe animals or the landscape from a fixed position, simply secure the binoculars to a tripod via the tripod connection thread. The fit and finish of this pair is very good and way better than what I was expecting in a sub 200 euro pair of optics!

Nevertheless, for most birders, and most situations, they do the job more than adequately, and it wasn’t as though they made birding at dawn or dusk a chore or even impossible. Nitrogen-purging also eliminates fogging inside your optics, and keeps sand, dirt and other fine particles on the outside, where they belong. Worth noting here is that as well as a good quality microfiber cleaning cloth, Bresser also includes an excellent cleaning pen that is very similar to the Carson Optical C6 Lens Cleaners that I use on all my optics which saves you from needing to get an extra lens cleaning kit. A high quality multi layer coating on all glass elements reduces distracting reflections and improves the light transmission and provides a high contrast even in bad light conditions.The eyecups are metal and are typical of most relatively inexpensive roof prism models featuring one intermediate location between fully collapsed and fully extended. Close focus, at 2m, is really pretty good without being anything exceptional, but again it will be more than enough for most needs – certainly, I found it fine while doing a bit of dragonfly-watching, as the birds drowsed out of sight in the midday heat. For many users, this may not be a big deal, but if you have smaller hands, carry other gear or for whatever other reason, this may be a factor to keep in mind, and perhaps for you, sacrificing a little on low light performance is worth it for an easier to carry and use instrument. As far as I know and what I have been able to find out, apart from the different sizes, there is no difference to the glass used on all lens elements (including the extra-low dispersion / ED ones) and coatings applied to them on both the objective and ocular lenses. The Porro versions have a tripod adapter thread and can be easily connected to a regular photo tripod.