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ZEISS DTI thermal imaging cameras. For more discoveries at night, and during the day.

EL SV 12x59 eye relief (1 Viewer)

The-Wanderer

The-Wanderer

Well-known member
I estimate I need another 3mm of available eye relief on these bins when using my specs with a 1mm thick O ring to protect them.

Could I add to each eyepiece a lens, presumably concave, to provide this and, if so, what strength should I buy taking into account the additional lens thickness?

I propose buying inexpensive plastic lenses to try first.

Thanks
 
Last edited:
I predict that trying to add a lens will not work at all. The entire optical design
will be compromised.

As a recent post mentioned a closer fitting eyeglass style, would be recommended.
Maybe you are ready for an optical exam.

If you can budget a Swarovski, you can handle getting eyeglasses that will work.

Good luck.

Jerry
 
The-Wanderer said:
I estimate I need another 3mm of available eye relief on these bins when using my specs with a 1mm thick O ring to protect them.

Could I add to each eyepiece a lens, presumably concave, to provide this and, if so, what strength should I buy taking into account the additional lens thickness?

I propose buying inexpensive plastic lenses to try first.

Thanks
Click to expand...

Maybe a silly question, but are you viewing with the EL 12x50 SV (while using spectacles), with the eye cups all the way In (or down)?
 
NDhunter said:
I predict that trying to add a lens will not work at all. The entire optical design
will be compromised.

As a recent post mentioned a closer fitting eyeglass style, would be recommended.
Maybe you are ready for an optical exam.

If you can budget a Swarovski, you can handle getting eyeglasses that will work.

Good luck.

Jerry
Click to expand...

I have newer, closer fitting specs following a recent eye exam."
 
I don't understand why so much of the ER is lost (when using glasses) due to the SV eye cup design. I think Swaro should provide alternative shallower eye cups, like they do for the ATX scopes.
 
I suspect because Swaro made a judgment that the looks of the design outweighed the worth of the extra cost of a change of design, or the lawyers got in on the act somehow.

I think there is no chance of the company changing its mind now.

I recently bought a late model Zeiss 7x42 diayt classic which had inadequate eye relief for me, but the eyecups were removable but I was able to resolve the ER isue with two oil seals and two O rings. Lovely bins now.
 
The-Wanderer said:
I estimate I need another 3mm of available eye relief on these bins when using my specs with a 1mm thick O ring to protect them.

Could I add to each eyepiece a lens, presumably concave, to provide this and, if so, what strength should I buy taking into account the additional lens thickness?

I propose buying inexpensive plastic lenses to try first.

Thanks
Click to expand...

A lens like this would be an optical disaster. If you have somehow got a 1mm o-ring in place between your specs and the eyepiece top lens, why not try an o-ring with thicker cross section? You could try incrementally thicker o-rings rather than going straight to the biggest. There are certainly 4mm and 5mm section o-rings available.

Lee
 
The-Wanderer said:
Specs on, rotated all the way down.
Click to expand...

TW,

Maybe I'm just blowing smoke, but if I understand your issue, here is my possible solution:

If your 12X50SV eye piece looks like the one from my 10X50SV (EP# 44118-see attached pic), then I have measured 3mm of rubber on top the outer metal eye tube. If you were to obtain OEM replacement eye cups from Swarovski (like THESE), 2mm of the glued-on eye cup rubber could be carefully removed and the eye cups reinstalled, hopefully with a closer "full view with specs", customized just for you!

Slim chance, but ask Swarovski in Absam CS if they would perform this task and sell (or give) you these modified 12X50SV eye pieces...never know for sure until you simply, ask!

Ted
 

Attachments

  • EL 10X50 SV Eye Cup #44118.jpg
    EL 10X50 SV Eye Cup #44118.jpg
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Theo98

AFIK, the eyecups for EL SV 8.5x42, 10x42, 10x50 and 12x50 are all the same.

Awhile ago I replaced those on my 8.5s and have kept the originals, hoping that I could do as you suggested but the rim of the metal eyepiece extends into a groove in the rubber eyecup leaving only about 1mm of usable thickness - too small for me reliably to trim down.

Nonetheless, I appreciate your suggestion.

Thanks
 
Theo98 said:
TW,

Maybe I'm just blowing smoke, but if I understand your issue, here is my possible solution:

If your 12X50SV eye piece looks like the one from my 10X50SV (EP# 44118-see attached pic), then I have measured 3mm of rubber on top the outer metal eye tube. If you were to obtain OEM replacement eye cups from Swarovski (like THESE), 2mm of the glued-on eye cup rubber could be carefully removed and the eye cups reinstalled, hopefully with a closer "full view with specs", customized just for you!

Slim chance, but ask Swarovski in Absam CS if they would perform this task and sell (or give) you these modified 12X50SV eye pieces...never know for sure until you simply, ask!

Ted
Click to expand...
Swarovski should offer eyecups that allow eyeglass wearers a better FOV. I noticed the same thing with Leica. The Trinovid eyecup edge was closer to the lens than the "new and improved" Ultravid eyecup. The Ultravid was softer but further from the lens...thus reducing effective FOV for those of us with eyeglasses.

With the Zeiss SF I have to use the first position on the eyecup...that's how generous the eye relief is. And, it's addictive!
 
Troubador said:
Same with me too.

Lee
Click to expand...
I've had my 8.5X42 SV for awhile but if the black SF had been available at the same time, in the same store, I'm pretty sure I would have gone with the SF. I was sorely tempted by the Nikon 7X42 EDG for the same reason...a walk-in view while wearing eyeglasses! As they say, there's always room for improvement.
 
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