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Problem with Nikon 8x32 LXL diopter
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<blockquote data-quote="brocknroller" data-source="post: 1625685" data-attributes="member: 665"><p>Hio Silver and Away….<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p></p><p>“The fault, dear Horukuru, lies not in our bins, but in our eyes if we are underaccommodating.”</p><p></p><p>-- Willie Shakesbeer</p><p></p><p>Are you over 40? Do you need to wear reading glasses? </p><p></p><p>The focuser on the 8x32 LX/LX L is faaaaaast and unless you have a good sample with the proper tension like my second sample, it could change focus too fast for your eyes to accommodate going from near to far. </p><p></p><p>See this Wikipedia article on focus accommodation and it’s relation to age, and also note the section on “Induced Effects of Accommodation”:</p><p></p><p><a href="http://en.wikipedia.org/wiki/Accommodation_%28eye%29" target="_blank">http://en.wikipedia.org/wiki/Accommodation_%28eye%29</a></p><p></p><p>Also, “Acute exposure to altitude caused a statistically significant but clinically insignificant increase in IOP (Intraocular Pressure)”, so that might be affecting your focus accommodation:</p><p></p><p><a href="http://www.iovs.org/cgi/content/full/48/4/1622" target="_blank">http://www.iovs.org/cgi/content/full/48/4/1622</a></p><p></p><p>I have to reset the diopter on the 8x32 LX when going from near to medium distance and again when going from medium distance to far (but that varies with light levels). </p><p></p><p>In fact, I have to do this so often, that I don’t even lock my diopter ring, but keep it popped out for more convenience. </p><p></p><p>The LX also has slightly less DOF than the 8x30 EII and 8x32 SE, so since the LX focuses through that distance faster, it can give the impression of having less DOF than it actually does, which could influence focus accommodation. </p><p></p><p>I experienced the same issues with the 10x42 EDG, which also has a fast focuser and less depth of field than my 8x porros. </p><p></p><p>Despite being 5 minutes older than me, my twin brother, Steveo (mooreorless), has the focus accommodation of a 16-year-old so he can use the 8x32 LX and just “set and forget”. </p><p></p><p>Dittohead for the 10x42 EDG, which is why the loose focuser cap didn’t bother him, because he didn’t have to keep reaching for the hard-to-find diopter adjustment ring. </p><p></p><p>Fortunately, I don’t have this issue with Nikon porros. </p><p></p><p>I think for several reasons, they have greater DOF than the LX, the focusers turn like molasses so you can’t focus fast even when you want to, and the wider separated barrels of the porros don’t allow me to focus as close w/out the field collapsing and causing me to cross my eyes and see overlapping barrel shadows, particularly in the SE, which has a longer close focus.</p><p></p><p>Before getting presbyopia (age-related farsightedness), the difference btwn using faster roofs and slower focusing porros was less of an issue. However, presbyopia degrades one's focus accommodation. </p><p></p><p>The sharp and contrasty images through the 8x32 LX are amazing. </p><p></p><p>Best contrast and color depth I’ve seen in binoculars, the build quality is “alpha class”, and I prefer the larger focus wheel and faster focus of the LX over the thin, slow focus wheel of the SE/EII. </p><p></p><p>However, due to aforementioned focus accommodation issues and my difficulty in holding the small LX steady with my supersized hands, I recently traded my LX for an 8x32 SE. </p><p></p><p>I don’t have any rain forests nearby (except for my backyard “jungle” in the spring and early fall) so the lack of WPing won’t be too big an issue. </p><p></p><p>However, not having a roof with an internal focus bin in the winter will be since my porro focusers stiffen as the temperature drops. </p><p></p><p>I will also miss looking at butterflies and bugs and the inside of flowers at close range, but you can’t have it all. Or at least I can't afford to. I think an 8x42 EDG would get me closer to binovirvana and perhaps even end this cycle of binosamsara (aka "binoholism" in the West).</p><p></p><p>If you are willing to carry more weight and can afford an EDG, you might consider switching to a full sized EDG (7x42 or 8x42). </p><p></p><p>I didn’t have the focus accommodation problems with the 8x42 LX, but I didn't like the “rolling ball effect” from the lack of pincushion. </p><p></p><p>If you’re not sensitive to “rolling ball,” try an 8x42 LX L. IMO, the original LX optics are better, but the full sized models are too heavy. </p><p></p><p>Klipy’s ad on Amart tells the story:</p><p><a href="http://www.astromart.com/classifieds/details.asp?classified_id=652133" target="_blank">http://www.astromart.com/classifieds/details.asp?classified_id=652133</a></p><p></p><p>However, if you only experience focus accommodation problems after changing altitudes, then you might want to give your eyes more time to adjust to the pressure before using your bins. </p><p></p><p>Or buy an pressured space suit. I understand they have some left over from the Apollo Program. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p></p><p>Good Luck! with finding the solution that works for you.</p></blockquote><p></p>
[QUOTE="brocknroller, post: 1625685, member: 665"] Hio Silver and Away….:-) “The fault, dear Horukuru, lies not in our bins, but in our eyes if we are underaccommodating.” -- Willie Shakesbeer Are you over 40? Do you need to wear reading glasses? The focuser on the 8x32 LX/LX L is faaaaaast and unless you have a good sample with the proper tension like my second sample, it could change focus too fast for your eyes to accommodate going from near to far. See this Wikipedia article on focus accommodation and it’s relation to age, and also note the section on “Induced Effects of Accommodation”: [URL="http://en.wikipedia.org/wiki/Accommodation_%28eye%29"]http://en.wikipedia.org/wiki/Accommodation_%28eye%29[/URL] Also, “Acute exposure to altitude caused a statistically significant but clinically insignificant increase in IOP (Intraocular Pressure)”, so that might be affecting your focus accommodation: [URL="http://www.iovs.org/cgi/content/full/48/4/1622"]http://www.iovs.org/cgi/content/full/48/4/1622[/URL] I have to reset the diopter on the 8x32 LX when going from near to medium distance and again when going from medium distance to far (but that varies with light levels). In fact, I have to do this so often, that I don’t even lock my diopter ring, but keep it popped out for more convenience. The LX also has slightly less DOF than the 8x30 EII and 8x32 SE, so since the LX focuses through that distance faster, it can give the impression of having less DOF than it actually does, which could influence focus accommodation. I experienced the same issues with the 10x42 EDG, which also has a fast focuser and less depth of field than my 8x porros. Despite being 5 minutes older than me, my twin brother, Steveo (mooreorless), has the focus accommodation of a 16-year-old so he can use the 8x32 LX and just “set and forget”. Dittohead for the 10x42 EDG, which is why the loose focuser cap didn’t bother him, because he didn’t have to keep reaching for the hard-to-find diopter adjustment ring. Fortunately, I don’t have this issue with Nikon porros. I think for several reasons, they have greater DOF than the LX, the focusers turn like molasses so you can’t focus fast even when you want to, and the wider separated barrels of the porros don’t allow me to focus as close w/out the field collapsing and causing me to cross my eyes and see overlapping barrel shadows, particularly in the SE, which has a longer close focus. Before getting presbyopia (age-related farsightedness), the difference btwn using faster roofs and slower focusing porros was less of an issue. However, presbyopia degrades one's focus accommodation. The sharp and contrasty images through the 8x32 LX are amazing. Best contrast and color depth I’ve seen in binoculars, the build quality is “alpha class”, and I prefer the larger focus wheel and faster focus of the LX over the thin, slow focus wheel of the SE/EII. However, due to aforementioned focus accommodation issues and my difficulty in holding the small LX steady with my supersized hands, I recently traded my LX for an 8x32 SE. I don’t have any rain forests nearby (except for my backyard “jungle” in the spring and early fall) so the lack of WPing won’t be too big an issue. However, not having a roof with an internal focus bin in the winter will be since my porro focusers stiffen as the temperature drops. I will also miss looking at butterflies and bugs and the inside of flowers at close range, but you can’t have it all. Or at least I can't afford to. I think an 8x42 EDG would get me closer to binovirvana and perhaps even end this cycle of binosamsara (aka "binoholism" in the West). If you are willing to carry more weight and can afford an EDG, you might consider switching to a full sized EDG (7x42 or 8x42). I didn’t have the focus accommodation problems with the 8x42 LX, but I didn't like the “rolling ball effect” from the lack of pincushion. If you’re not sensitive to “rolling ball,” try an 8x42 LX L. IMO, the original LX optics are better, but the full sized models are too heavy. Klipy’s ad on Amart tells the story: [URL="http://www.astromart.com/classifieds/details.asp?classified_id=652133"]http://www.astromart.com/classifieds/details.asp?classified_id=652133[/URL] However, if you only experience focus accommodation problems after changing altitudes, then you might want to give your eyes more time to adjust to the pressure before using your bins. Or buy an pressured space suit. I understand they have some left over from the Apollo Program. :-) Good Luck! with finding the solution that works for you. [/QUOTE]
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Problem with Nikon 8x32 LXL diopter
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