The main problem with glasses is if the relief isn't enough. Can you see the
whole field of view with your reading glasses on?
Adding sunglass lenses on top will require a little more relief, so you'll have
to try that. I've tried two types - the generic ones that physically clip onto
the glasses lenses, and magnetic ones. The former only come in a limited range
of sizes (big and gigantic) and I think they look stupid, plus they seem to be
able to move out of place easily.
I opted for glasses that come with sunglass lenses that clip on with little
magnets. These can only be obtained from the manufacturer because the design of
the magnetic clips is proprietary (I assume). Try to get a spare set when you
get the glasses if you get this type, or at least write down enough information
to let you order more. The manufacturer name wore off my glasses, and it took a
bit of effort to work out what to order.
Mine (sunglass lenses) seem to work ok with my binoculars, but I've been
avoiding using them because I feel they're too dark, and if I want to take them
off it's a pest to find somewhere safe to put them. But I use them for driving,
and they're quite good for that.
I haven't tried multifocals yet, but will have to soon. I'm short sighted, so I
can read the field guide by holding it a few inches from my eyes with glasses
off, or by pushing my glasses to the tip of my nose to reduce their power.
I would have thought multifocals might cause a reduction in image quality if
the binoculars are held over the transition part of the lenses. The results
might therefore depend where the transition is, and the difference in power
between the top and bottom. I.e you might just have to try it to see how it'll
work for you. I suspect that the degradation wouldn't be that bad, but it might
be annoying if a bird is far away.
Your optometrist might be able to rig something up so you can try your
binoculars in the shop, and might be able to adjust the location of the
transition a bit.
Let us know how you go, I'll need to know for myself soon.
Peter Shute
>-----Original Message-----
>From: [birding-aus-
> On Behalf Of Arwen B. Ximenes
>Sent: Thursday, 19 July 2012 1:32 PM
>To: ; ;
>; ; ;
>
>Subject: Re: [Birding-Aus] birding and glasses
>
>
>Hi all,
>
>thanks so much for these ... insights... (sorry).
>
>Very interesting to hear people's experiences, would be glad to hear
>more.
>Especially good to know about the issue with the multifocals' gradation,
>Greg, thanks, glad they work better for you now.
>Rob and Dave - contact lenses - yes, I had wondered about those but
>thought maybe try glasses first - but if it makes such a difference in
>terms of ease of use maybe it's worth more consideration. I haven't
>looked into cost of contacts - the multifocals are expensive and I
>already have reading glasses so I could just change the lenses on those
>if I got contacts or single focus and I think it would be a lot cheaper.
>Bill, I have astigmatism too, and glare makes it worse, hence the need
>for sunglasses in the field (or anywhere) - I thought the fitover ones
>would be good but it's probably more cumbersome taking them off to look
>through the bins, though I won't be able to buy prescription ones for a
>while either.
>
>I'm still thinking multifocals sound like the way to go, I'm just
>baulking at the price tag.
>
>sounds like having glasses is going to be very annoying, but if they get
>rid of the headaches I'll put up with them.
>
>thanks,
>Arwen
>.........................................
>Arwen Blackwood Ximenes
>
>
>
>
>
>
>
>From:
>To: ;
>Subject: RE: [Birding-Aus] birding and glasses
>Date: Thu, 19 Jul 2012 03:08:20 +0000
>
>
>
>
>Hi Arwen
>
>I've used contact lenses - now for 20 years. Never had a problem with
>them apart from a dusty dry trip around India, and my eye sight is near
>perfect with them.
>
>I have used glasses successfully but it is an issue in hot and wet
>climates & on pelagics if there is spray (rain, condensation etc.) and
>in very sunny conditions you inevitably get light coming in between your
>glasses and eyes.
>
>When I have used bins with glasses (Zeiss, Leice and Swarovski)- I can
>use them interchangeably with the eye-cups down.
>
>I once got at eye infection birding on a long trip to India (so the
>contact lenses were a no go) and after a while glasses with bins just
>become second nature and you barely notice.
>
>That said, contact lenses are a lot better in general.
>
>Cheers
>
>Rob Morris
>
>Brisbane, Australia
>
>
>
>
>> From:
>> To:
>> Date: Thu, 19 Jul 2012 12:27:05 +1000
>> Subject: [Birding-Aus] birding and glasses
>>
>>
>>
>>
>> Dear birding-aus glasses wearers,
>>
>> Numerous headaches later (especially following birding outings!), I
>have now been told I need glasses, not uncommon in those approaching 40
>apparently!).
>>
>> I'm interested in hearing what set-up birders prefer. (I have bins
>with screw down eye cups).
>>
>> Are multifocals good for birders? (and what its it like to use the
>fitover glasses whilst birding?)
>> What would you go for?
>>
>> Thanks in advance,
>>
>> Arwen
>>
>> .........................................
>> Arwen Blackwood Ximenes
>>
>>
>> ===============================
>>
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