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#1
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Eyepiece with good eye relief?
Being astigmatic and middle aged, I need to wear spectacles all of the time. My
binoculars have excellent eye relief and are quickly switchable from being suitable for spec wearing to non-spec wearing users. The change in eye-relief is 10mm, and I get full angular coverage with ease when wearing specs. Is a similar facility available in 1¼" eyepieces for astro 'scopes? Currently I use the 26mm Plossl supplied with my ETX-105, and even with the rubber surround folded down, my viewing angle is very restricted. (The change in eye relief from the up position is only 5mm, maybe 6mm if I'm generous! I can gain another 3mm by removing the rubber cup, but then I'll scratch my specs.) Are any other makes better in this respect? (I appreciate that eye relief varies with focal length, but getting a good viewing angle with the "standard" eyepiece shouldn't be impossible, me thinks!) Thanks for any ideas. -- M Stewart Milton Keynes, UK www.megalith.freeserve.co.uk/oddimage.htm http://myweb.tiscali.co.uk/ms1938/ |
#2
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"Malcolm Stewart" wrote in message ... Being astigmatic and middle aged, I need to wear spectacles all of the time. My binoculars have excellent eye relief and are quickly switchable from being suitable for spec wearing to non-spec wearing users. The change in eye-relief is 10mm, and I get full angular coverage with ease when wearing specs. Is a similar facility available in 1¼" eyepieces for astro 'scopes? Currently I use the 26mm Plossl supplied with my ETX-105, and even with the rubber surround folded down, my viewing angle is very restricted. (The change in eye relief from the up position is only 5mm, maybe 6mm if I'm generous! I can gain another 3mm by removing the rubber cup, but then I'll scratch my specs.) Are any other makes better in this respect? (I appreciate that eye relief varies with focal length, but getting a good viewing angle with the "standard" eyepiece shouldn't be impossible, me thinks!) Thanks for any ideas. Hi Malcom, The Vixen Lanthanums are very good in this respect, 20mm eye relief with the eyecup folded down on both my 25mm and 9mm Robin |
#3
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Malcolm,
Televue Radian eyepieces are excellent, have good eyerelief with insta-adjust eyecups. They are pricey, however, but second hand ones can often be obtained on www.ukastroads.co.uk A good quality Barlow lens retains the eyerelief of an existing eyepiece and yet multiplies the magnification (e.g x2) - useful since eyerelief generally goes down with decreasing focal length. -- Russell Healey "Malcolm Stewart" wrote in message ... Being astigmatic and middle aged, I need to wear spectacles all of the time. My binoculars have excellent eye relief and are quickly switchable from being suitable for spec wearing to non-spec wearing users. The change in eye-relief is 10mm, and I get full angular coverage with ease when wearing specs. Is a similar facility available in 1¼" eyepieces for astro 'scopes? Currently I use the 26mm Plossl supplied with my ETX-105, and even with the rubber surround folded down, my viewing angle is very restricted. (The change in eye relief from the up position is only 5mm, maybe 6mm if I'm generous! I can gain another 3mm by removing the rubber cup, but then I'll scratch my specs.) Are any other makes better in this respect? (I appreciate that eye relief varies with focal length, but getting a good viewing angle with the "standard" eyepiece shouldn't be impossible, me thinks!) Thanks for any ideas. |
#4
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"Malcolm Stewart" wrote in message
... snip Is a similar facility available in 1¼" eyepieces for astro 'scopes? Currently I use the 26mm Plossl supplied with my ETX-105, and even with the rubber surround folded down, my viewing angle is very restricted. Thanks for your replies - Looks as though there's a decent choice at a price. I've just been to the respective websites, and now understand what an astro friend warned me about just after I bought the 'scope - that the hobby becomes its own financial black hole! Cheers, -- M Stewart Milton Keynes, UK www.megalith.freeserve.co.uk/oddimage.htm http://myweb.tiscali.co.uk/ms1938/ |
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