With the new Bresser delux binocular viewer, you can enjoy two-eyed, three-dimensional viewing in almost any telescope, even Newtonian binoculars, because no extra light-path correction is needed.
How does it work?
Unlike cheaper models, the Bresser delux binoculars feature a complex system of mirrors and lenses that split the incoming light into two parts - with the least possible loss and the most accurate ratio - and then transmit it to the eyepiece eyepieces. Even though only half the amount of light reaches each eye, our brain is able to combine the image seen by the right and left eye. It is well known that using both eyes at the same time makes the magnification "appear" larger and also allows us to see more detail in the object we are observing. It is also less tiring to observe with two eyes than to squint with one. The viewing distance of the eyepiece can be adjusted between 58 - 74 mm to suit your individual needs. To use it, you need two identical 1.25 eyepieces. A special feature is that the eyepiece is secured by clamping rings instead of screws, thus centrally fixing both eyepieces and not pushing them off the optical axis. It is definitely worth using better quality eyepieces to get the most out of the optical quality of the binoculars.
Use of the binoculars
In addition to the plastic outer casing of the binoculars, the manufacturer has used all metal and glass materials. For the mirror material, Bresser has chosen a high-quality lanthanum glass product made by Japan Ohara. Multiple anti-reflective coatings on all glass surfaces have been used to eliminate harmful reflections, and the light transmissioncan reach up to 99% thanks to dielectric coatings. This makes the image seen even brighter and more contrasty.
Unlike many other makes, the Bresser delux binocular viewfinder does not require an additional light path, so no light path correction is needed, so magnifications obtained with the eyepieces used will not change, while at the same time you don't have to give up the wide field of view experience. Any telescope with a 1.25" eyepiece can be used without a corrector, the only restriction is that the outer diameter of the eyepiece must not be larger than 50 mm.
The Bresser delux binocular binoculars are mainly recommended for observing the Moon, planets, the Sun and brighter deep-sky objects with the right filter, but of course they are also a great pleasure for daytime nature observers.