Welcome to this guide on How to Adjust Binoculars, brought to you by UK Telescopes. In this guide, we will help you setup your binoculars which are sometimes used instead of a telescope.
Get your binoculars out and let’s get started.
Telescope or Binoculars?
Using a telescope to observe the night sky is not always convenient as a certain amount of setup time is needed before looking at any celestial objects. Binoculars though are easy to pick up and start using straight away, however, they need to have been setup first prior to any observing.
Adjust your Binoculars
Today we’re going to be looking at how to adjust your binoculars so that you can get the best from your optics, roughly 90% of people do not know how to properly adjust their binoculars and without knowing how to properly do this, even the best binoculars really have no advantage over the worst binoculars. I’m going to be using the Konusrex 12×50 Binoculars which are phase corrected, Fully Muti Coated, Nitrogen Filled and Silver Mirror Coated which give exceptional views of many night sky objects
The first thing you want to adjust with your binoculars is IP spacing, which is the correct distance between the eyepieces to match your own eyes, now everyone’s a little bit different with a distance from pupil to pupil and phase shapes etc. so get a good grip on the binoculars hold them up to your face and adjust in and out until your two fields of view form into one field of view.
The second thing we’re going to adjust is the eye cups from a down position to an upward position now most of the time if you do wear glasses, you’re going to need them in a downward position, but if you don’t, you’re going to be in the first couple settings in the upward position and that’s to help get the best field of view you can.
Now the third and most important thing is to adjust the focus, when you adjust focus, you need to know that there are three main types of focus on a pair of binoculars, you have the centre focus, individual focus, and fixed focus, since centre focus is the most popular, we’ll be discussing that today.
I am using the Konusrex 12×50 centre focused binoculars, now what that means is when you adjust them you need to first cover up the right lens on the binocular and use the central focus wheel to focus on an object at a distance of around 25 metres, then when you have the object such as a tree branch or some lettering until it comes into perfect field of view and perfect vision, after you have that focused you can then go ahead and cover up the left lens and use the single dioptre to also get a clear view of the chosen object.
That’s it! The binoculars are now adjusted to your eyes and when you look at any object you only need to use the central focus wheel to adjust focus.