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Binoculars & Spotting Scopes
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Swarovski
when to sell my EL
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<blockquote data-quote="iporali" data-source="post: 1622196" data-attributes="member: 2925"><p>Dale & Dude,</p><p></p><p>A large ocular lens makes it possible to have both large AFOV and good ER at the same time because it sets the limit for the angle of light cone and exit pupil distance. This has been the reason why long ER and wide FOV have usually been mutually exclusive. The other advertised advantages of the "Swarovision" have been flat field (center and edges in focus at the same time) and undistorted straight lines, but I don't think these are directly related to the ocular size. BTW, I hope Swarovski's implementation of field flattener is different than Nikon's since my eyes feel a lot more relaxed with "unflattened" EIIs than with the SEs or HGs.</p><p></p><p></p><p></p><p>Perhaps this was not a perfect translation, because maintaining the same magnification would require correspondingly increased objective focal length - and yet the external dimensions seem very close to the current ELs.</p><p></p><p>Best regards,</p><p></p><p>Ilkka</p></blockquote><p></p>
[QUOTE="iporali, post: 1622196, member: 2925"] Dale & Dude, A large ocular lens makes it possible to have both large AFOV and good ER at the same time because it sets the limit for the angle of light cone and exit pupil distance. This has been the reason why long ER and wide FOV have usually been mutually exclusive. The other advertised advantages of the "Swarovision" have been flat field (center and edges in focus at the same time) and undistorted straight lines, but I don't think these are directly related to the ocular size. BTW, I hope Swarovski's implementation of field flattener is different than Nikon's since my eyes feel a lot more relaxed with "unflattened" EIIs than with the SEs or HGs. Perhaps this was not a perfect translation, because maintaining the same magnification would require correspondingly increased objective focal length - and yet the external dimensions seem very close to the current ELs. Best regards, Ilkka [/QUOTE]
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