brocknroller
(Carpal Tunnel)
07/02/09 07:43 PM
Re: ED glass in binoculars

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However, in an actual color extinction test at twilight, the SE outperformed the EII by about 8-10 minutes, perhaps because of the slightly larger aperture or more efficient light transmission.

In daylight, the EII looks "brighter" to my eyes.







Hail B'rock son of Gr'lka,

If you were testing the 8x SE and EII, in Cloudy Valley, I would be surpised that 2 mm. difference in aperture would make an 8-10 minute difference in twilight colour distinction. In Copenhagen, or another spot, at a high latitude, such a conclusion would make far more sense.

Happy observing,
Arthur




Sir Arthur of Manhattan Island,

Next week, I hope to take some photos of my backyard rain forest (which is almost entirely covered in foliage) and post them on the Cloudy Days Forum.

I recently bought a pith helmet to protect me from falling coconuts (British Royal Marines surplus).

The light levels are quite low on a cloudy day, but it's a pastoral setting rather than a cityscape so I will throw in a scaled down version of "Den Lille Havfrue" to make it look more like Copenhagen. :-)

After seeing the pix, it will become obvious why I purchased a CZJ 8x50 Octarem (though in hindsight it would have been much cheaper to attach a flashlight to my 8x32 SE since the images in both bins are fairly similar except for brightness).



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