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Selsi 7x35 luminous #33891 - Optics

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Tv on no picture


The Power to the video/luminance is missing or The pc video/luminance board is defective needs repair.The Power supply Module provides the voltage to the video/Luminance board.

Nov 03, 2012 | Pioneer PDP-506XDE 50 in. Plasma TV

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I have a dell crt monitor. Luminance Temperatura pop up on the screen and it go on and off. Sometimes contrast or bright appear on bottom of the luminance temperature. How do I fix?


I have a dell crt monitor. Luminance Temperatura pop up on the screen and it go on and off. Sometimes contrast or bright appear on bottom of the luminance temperature. How do I fix?

Sep 01, 2010 | Dell E773C 17" CRT Monitor

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Where can I purchase eye piece rubbers for olive drab rubber coated 19x50 selsi?


Hi,

The eyepieces should be easily available through any good selsi agent. If they don't stock them they should be able to order them for you..

Oct 04, 2009 | Selsi Optics

1 Answer

Eyecup part for Tasco binocular - 7x35


Eyepiece cushions for binoculars, telescopes, microscopes ... are all about the same size (Because our eyes are all about the same size!), and can be easily made from bicycle inner-tube material of the appropriate diameter. Measure the outside diameter of the eyepiece and ask a bike shop for the right tube inside diameter; a few mm smaller. Cut a section about twice the "depth" of the cushion you wish to have, roll the section over itself and stretch it around the eyepiece with the uncut (rolled) edge uppermost.

Sep 19, 2009 | Tasco Rams 7X35 Binocular, Black

1 Answer

I was wondering if you know about how much a pair of vintage selsi binoculars 20 x 60 in case might be worth


$20 to $40. Selsi binculars were once made in Japan. They were never considered a top optic. The prisms used are BK7 which isn't the best glass to use in a pair of binoculars. I'm sure they are fun to use and have a reasonable view if in good condition, just not worth much. Sorry.

Aug 11, 2009 | Optics

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I have a Swift model 802, 7X35 binocular. The


at the bottom hindge there is a nut you can remove . then take a long thin screwdriver and take off the screw that holds the eyepiece focus shaft. turn center wheel till eyepiece xbars come off body,carefull not to touch lenses. gl larry@reichinstruments.com

Jun 23, 2009 | Swift Audubon 804ED BWCF Binocular

6 Answers

How is a flashlight both luminous and nonluminous at the same time?


At first light it DOES sound a bit confusing.
First, the definition of the term 'NON-LUMINOUS'; 'Not capable of PRODUCING light but can be capable of REFLECTING light from another source'.
For instance, our MOON is NON-LUMINOUS as it REFLECTS light from the Sun. The SUN is LUMINOUS as it produces light that is REFLECTED off the surface of the moon. And so, LUMINOUS means capable of PRODUCING light.
Now closely examine your flashlight.
The BATTERIES produce electrical energy which is transferred to the BULB which emits light, thus LUMINOUS. The tiny little BULB emits quite a lot of light for its small size. However, the bulb is contained within a concave silvered cone which REFLECTS,(NON-LUMINOUS) gathers and channels the emitted light from the BULB (LUMINOUS) into a BEAM which ILLUMINATES whatever you are pointing the flashlight at.
Our cameras would be just paperweights if there were no NON-LUMINOUS surfaces for the light to REFLECT off of, back into the camera lens, onto the 'plate' thus etching the image. For example, take a photograph in the dark without the flash and what do you get. No LUMINOUS, no NON-LUMINOUS.
And so there we have LUMINOUS and NON-LUMINOUS, ILLUMINATING our lives. Enjoy! :)

Jul 21, 2008 | Vector Power On Board High Intensity...

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