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Swedpat
Pooh-Bah
Reged: 02/18/05
Posts: 1033
Loc: Boden, Sweden, Scandinavia
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Re: Some tid-bits obout the 2.3x40 Owl eyes
06/22/08 05:14 AM
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Glenn,
Since several years I have a Bushnell X-wide 5x25 which I bought just because I liked the idéa of a real wide field and stable image binocular. I also liked the idéa of taking in entire consellations in the FOV. The X-wide 5x25 has around 13deg FOV.
BUT:
The FOV is sharp to only about 50% (6-7deg) and further towards the edges the image is strongly distorted. That means it's sharp of only approximately 25% of the total field area...
The internal reflexions and ghost images are extreme as well.
These factors make the X-wide 5x25 hardly useful for astronomy at all.
But when it comes to magnification I noticed following: The first impression with 5x (actually I have noticed that the true magnification is closer to 4-4,5x because the exit pupil is undoubtly larger than 5mm) was that it felt like I don't came much closer than the naked eye view. When looked at cars I could easy read licence plate numbers at several times the distance as with the naked eye, however.
It's the same thing with higher powered glasses: it's an optical illusion that makes we don't experience we come that closer as the magnification states. Putting a 10x binocular to my eyes it feels like maybe 5x closer, not more. But when trying to se details it's obvious the magnification really visibly locates me that closer as the magnification rate.
Therefore I realize that even a low power of 2,3x will help me to see details significantly better than with naked eye, though the very first impression likely will be that I will doubt there is any magnification at all!
Do you have a recommendation where to order the 2,3x40? I have not found a dealer in my country.
Excuse my faulty english, these are quite complicated sentences for me...
Regards, Patric
--------------------
*2,3x40 Constellation View Wide-Bino
*Leupold 6x30 Yosemite
*Leupold Katmai 6x32
*Swarovski SLCNew 7x42B
*Bresser (Lidl) 10x50
*Oberwerk 11x70
*No name (Kunming) 15x70
*Scopos ED APO 66
*Meade 5000 26mm Plössl, Vixen LV 10/5mm
Psalm 19:2
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