How to Adjust Focus on a Varifocal CCTV Camera Lens

How to Adjust Focus on a Varifocal CCTV Camera Lens


In this video I’m going to demonstrate how
to adjust a varifocal lens using this box CCTV camera and Goggle Glass.
Okay, so I have one of our HDBX7 box cameras. This is actually a HD-SDI box camera on a
tripod here. I have it focused in on Mike and Marilyn down there. Mike is actually holding
a little sticky note which you’ll be able to see in a second when I zoom in.
Here are the controls, so this part of the lens actually zooms the view in and out, and
then this smaller ring here does the focusing, so let’s go ahead and zoom all the way in,
and then adjust the focus. Sometimes you got to back it out just a touch. There we go.
Pretty good right there. It adjusted in to just about 50 millimeter
right now. It’s almost all the way zoomed in. I’ve backed it out just a little bit.
Then if I want to zoom all the way back out, I just adjust the zoom ring back out. Typically,
you have to, again, back it out a little bit at either extreme, zoomed in all the way or
zoomed out, to get a good focus. Then, I’ll adjust the focus here with the focus ring.
That looks pretty good right there. That’s how you adjust the varifocal lens and
focus on a box HD-SDI camera or CCTV camera. They’re both done the same way.

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2 Replies to “How to Adjust Focus on a Varifocal CCTV Camera Lens”

  1. Adjusting a Surveillance Camera Lens Demo with Google Glass

    Here is a how-to video on adjusting a varifocal surveillance camera lens being viewed through Google Glass. CCTV Camera Pros co-founder, @Mike Haldas, provides a first person experience in the video by recording everything #throughglass , while at the same time recording the live video from the CCTV camera he is adjusting.

    The process for adjusting a varifocal lens is the same on CCTV, HD-SDI, and network IP security cameras. Please watch this video to learn how.

    Please post any questions that you have via comments.
    #securitycamera   #googleglass   

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