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I am getting a double image on a smartboard - Problem? - Will not be removed by focusing.

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2 Answers

Seeing double when I look with both eyes. Out of


Step 1.
Adjust the eyepiece or both if both are adjustable back to zero. It should be printed on there. If it's not, then halfway. To find halfway turn them to one end, count the number of turns like 1 and a half turns for example, and then half that atnd turn it that ammount. You've now reset the binoculars to zero.

Step 2.
Now to focus. Pick your target that you want to look at thoguh your binoculars. Look through the binoculars and close the eye with the adjustable eyepiece or your right eye if both are eadjustable and focus the image on the left eye with the central focus knob. Once you've got it focused close the left eye, open the right eye and if it's not in focus adjust the EYEPIECE focus, not the central one, until it's in focus.
If you can't get it in focus because the eyepiece focus won't turn far enough in one direction, turn the OTHER eyepiece in the opposite direction at max, start the process again from step 2.

If it's all ok now you need to adjust the distance between the eyepieces. Open the binoculars as far as they go, look through the binoculars with both eyes on the target and move the binoculars inward slowly until you remove any black edges around the image, then move them very slowly inward until you see only one image.

If you've got more problems come back as ask. :-)

Nov 27, 2009 | Vector Audubon 8x42 Binoculars

2 Answers

Focusing problems


Hello Samaro,

This effect is produced when the tho sides of the binoculars are not focusing the same.
Since you sayit is present at long distance, it might be that one barrel is stuck and is not focusing the same as the otherone when you scroll the middle "focuser".

What you can do is open it up and try to clean it, also see if there is something, that is making one of the lenses not move forward as far as the other one.

Good luck,
Dahaka

Jul 28, 2008 | Fujinon CD Binocular

1 Answer

Double image after magic focus with a number 4


Replace Both Of your convergence ICs STK392-110 they are big black IC will have part# on them Call Mats for parts 1-800-628-1118

Sep 25, 2009 | Hitachi 53UDX10B 53" Rear Projection...

1 Answer

Double screen image


Double image shows that TV got problem of Convergence Out ICs failure and will be replaced two ICs mounted at D Board of TV.

ICs, STK392-360 are available in Part Store, click to see an image and price info.

Apr 27, 2009 | Sony KP-65WS500 65" Rear Projection...

1 Answer

Need to adjust lens focus on all three projectors


If its a double image that sounds like convergence.

Apr 09, 2009 | RCA D52W23 52" HDTV CRT TV

1 Answer

Smartboard will not work


If you tried 7 different laptops yeah, the problem could be with the smartboard. Try another one and see what happens.

Otherwise we'll just be guessing.

Feb 25, 2009 | Toshiba Satellite A60 Notebook

1 Answer

Double image on green


Focus won't help if it is a double image. Sounds like convergence amps need to be replaced. Very typical on these.

Jul 04, 2008 | Hitachi 61SDX01B 61" Rear Projection...

1 Answer

Black dot.


Ensure focusing is spot on. if your image is a black dot surrounded by white light (like a doughnut) then your not in focus. Look at making a Hartmann Mask (really easy, just google for it), which fits over the front lens. It has 2 or more holes in it,this means when you look through the eye piece you will see double images, adjust focus until the images merge into one (if the images go further apart turn the focuser the other way), when they are merged remove the mask and presto you should be in optimum focus. Always remember telescopes are very sensitive and focussing requires delicate adjustments.
Regards and Clear Skies
Carl

Dec 26, 2007 | Celestron NexStar 4 SE Telescope

1 Answer

Double image 6 yr old unit


Have you let set warm and then tried Magic Focus? Maybe after 15min.

Nov 25, 2007 | Hitachi 61UWX10B 61" Rear Projection...

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