Bino Use With Glasses

Klenchblaize

Well-Known Member
Due primarily to frame shape and thickness of my "distance" glasses (first pair) I'm unhappy with their interaction with my bino's folded eye cups and the attendant poor feild of view.

As I'll not entertain the use of contact lenses I'm considering having a pair of circular lenses cut/ground to my prescription and insert them within my bino's rubber eyecups (interference fit).

Can't see why this wouldn't work but wondered if anyone has tried this with either binos or scope? The latter could be ground to fit inside a Butler Creek ocular cap.

Ta

K
 
A pair of small framed close fitting frames just for shooting might work. If they fit close to your eyes you still have a reasonable field of view when not using your bins.l Might even find a pair of NHS frames that fit the bill for relatively little money.

David.
 
I have a pair of Swarovski EL range that I use with my distance glasses and with the eye cups folded without any issue, if that's helpful?
 
I need about -1.5 diopter for distance. I don't need to wear glasses when using binoculars (nor do I do so) & would gain nothing by inserting lenses in the eyecups. It's when I'm not using binoculars that I need lenses.
 
Due primarily to frame shape and thickness of my "distance" glasses (first pair) I'm unhappy with their interaction with my bino's folded eye cups and the attendant poor feild of view.

As I'll not entertain the use of contact lenses I'm considering having a pair of circular lenses cut/ground to my prescription and insert them within my bino's rubber eyecups (interference fit).

Can't see why this wouldn't work but wondered if anyone has tried this with either binos or scope? The latter could be ground to fit inside a Butler Creek ocular cap.

Ta

K
I would honestly suggest you think again about contact lenses.
I've been wearing lenses all day every day for over 30 years, and can't fault them.
I know several people who, like you, don't fancy wearing contact lenses, so wear disposables for shooting and sports activities only, reverting to glasses in between times.
 
I would honestly suggest you think again about contact lenses.
I've been wearing lenses all day every day for over 30 years, and can't fault them.
I know several people who, like you, don't fancy wearing contact lenses, so wear disposables for shooting and sports activities only, reverting to glasses in between times.
No, it ain't happening. Not even with a green tint!

K
 
My distance vision isn't too bad but by reading vison is pretty rubbish so I wear varifocals. I have given up trying to wear them with bino's/thermal etc. and now just take them off while stalk and accept I have to fish them out my pocket if I want to read anything.

I have tried to use contact lenses but despite persisting I just can't get them n my eyes
 
@Klenchblaize a few people do as you suggest with welding shields/mask. Inside where the filter fits, they add a lens say a +2.0 if that is whats required, and away you go for improved close up vision.

Seems to work ok.
 
I've worn varifocals for a million years and I never fold the rubber eye caps back, it restricts the field of vision and I don't need it.
 
Currently on disposable (soft) lenses, low near vision, prescription distant (mild short sight). They are excellent and a good compromise (once near vision goes, everything is a compromise). Most opticians will do trials so have another go.
 
Lift your glasses up wind out cups and use bins as normal after adjusting lenses. Simple.
D
I'm stubborn and have demonstrated to MY satisfaction that I can achieve a crisper/ more defined image when viewing something through a pair of bins and my distance prescription. I just need that image to be uncompromised by a restricted feild of view and vignetting.

I've since done some research and will be having a stiff word with my independent optician as they were advised I shoot and go "birding". The following may help someone else avoid a similar mistake when choosing frames:

"Eye relief can be particularly important for eyeglass wearers because the eye of an eyeglass wearer is typically further from the eye piece which necessitates a longer eye relief in order to still see the entire field of view.

The eye relief given in many product specifications does not always give a realistic view of what you as the user can expect. Although eye-cups can usually be folded down to allow the spectacle wearer to get closer to the eyepieces, there are sometimes lens mountings that do not allow the theoretical eye relief to be obtained. A better measure for those with strict needs would be one that takes account of this available eye relief, the theoretical value less any thickness of the lens' rims. This point can account for confusion in performance and is rarely expressed clearly.

What is more, when a eye-glass wearer orders a new pair of glasses, the optician will often ask if you prefers them close to the eyes or at some distance. This distance is referred to as the Back Vertex Distance, or BVD on a prescription. Since this property affects the available eye relief of any binocular or other optics used, it should be borne in mind at the eye testing stage. The matter should be discussed with the optician, though the only realistic way of testing the comfort is to try the optical device while wearing the usual spectacles. The optician can however make sure that the BVD is no worse in your new glasses than in the old ones that were used in your evaluation."

 K
 
I've got SLC's and though they are OK they are not perfect with specs, so I see where Klenblaize is coming from -no pun intended.

Everyone’s different. 👍

Had Zeiss Victory, Swaro ELs and Leica Geovids trying to find the answer - the SLCs with the 20mm Ocular lenses work perfectly for me - they come up spot on.

Suppose it depends on the style of your glasses.
 
Due primarily to frame shape and thickness of my "distance" glasses (first pair) I'm unhappy with their interaction with my bino's folded eye cups and the attendant poor feild of view.

As I'll not entertain the use of contact lenses I'm considering having a pair of circular lenses cut/ground to my prescription and insert them within my bino's rubber eyecups (interference fit).

Can't see why this wouldn't work but wondered if anyone has tried this with either binos or scope? The latter could be ground to fit inside a Butler Creek ocular cap.

Ta

K
Have you chatted to your option about this, there may be other material with a better refractive index. My lovely father in law was a proper birder, wore glasses the whole time. I have a set of his Zeiss 8x42 which I can use with my glasses (only -1.75) easily
 
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