If I wear glasses, do I need to buy special binoculars? These are two questions that come to our contact email very often, which we find very interesting and that is why we decided to make this guide.
The good news is that YES !, of course, if you can use your glasses without problem , you must be very clear that the binoculars you use must be of excellent quality, here we will give you details.
The first thing we must determine or define is why you wear glasses, if you use glasses to correct myopia , the good news is that you do not need to wear glasses when using binoculars, since good models allow you to make an adjustment diopter on them, both with the central focus and of course with the diopter adjustment wheel that is usually located on one of the sides and under the eyeglasses.
If you use glasses because you have astigmatism, it is very sure that they have a formula or recipe and you should definitely use them whenever you use binoculars, if you do not use them you will feel a little dizzy and of course you will sacrifice the sharpness of the image.
What is eye relief?
Eye relief is the distance between the ocular (objective) lens you have on your binoculars and your eyes when you look through them. Quality binoculars have eye adjustments so you can get the correct distance you need to see the whole picture.
For people who do not wear glasses or glasses, the normal adjustment is to have these eye adjustments fully extended, although considering that each person has different proportions on the face, it is possible to perform a micro adjustment so that you obtain the correct distance (eye relief – eye relief) and you feel very comfortable using your binoculars.
If of course you wear glasses or spectacles, you should check what is the maximum value of that eye relief or ocular relief, since the glasses are between your eyes and the eyeglasses of the binoculars and this causes the distance to increase.
Many people with glasses need to move (depending on the type of binocular and its quality) the eye cups so that the glasses occupy the space of the eye relief, it is very important that the binoculars you use or want to buy have a wide distance that allows it.
What would be the optimal distance (eye relief) indicated?
Most binocular models have an eye relief of more than 10mm , but it is not an ideal measurement for people who wear glasses, as it will not allow you to get a complete image.
With our experience and some friends and clients who have had this doubt, you should consider 16 mm as a minimum to have a consistent and prolonged relief, in some cases it could be around 14 and 15 mm , but it would depend on each case, ideally the bigger it will be the most comfortable distance will be the use of your binoculars.
What are eye cups?
If you look closely at your binoculars or look at a model online, you will notice that the eyeglasses are somehow covered by rubber bands or caps, these rubber bands are called eye cups.
If we do not use glasses, perhaps it is not something that seems important to us, but for those who wear glasses or glasses, the eye glasses become a determining factor when buying your binoculars, cheap and simple binoculars usually bring simple rubbers that just by folding them will suffice , since you do not need adjustment and with its folded position it will be more than enough to use your equipment.
If you need these cups to be much more flexible where you can adapt the distance, you should look for better quality binoculars and that the cups are rotatable or that allow you to stretch and retract (with a few clicks – defined heights) in other models, you can contract and extract them almost at any point because they have a friction mechanism.