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Old Apr 27, 2012, 12:00 PM
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Joined Apr 2012
3 Posts
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Problem with FatShark Camera + 1.9mm Lens

Hi guys!

I bought a FatShark Kit that came with this camera:

Camera Specifications:
- Lens: 3.6mm IR coated 87 degree FOV
- Audio: Left/right stereo low sensitivity
- Electrical: 3.5-5.5V, 60mA @ 5V
- Mechanical: high impact plastic, 15g, lens locking ring
- Imager: 420TVL CMOS, NTSC
- Termination: 5p Molex (IRC/Fat Shark TX plug/play)


Trying to open the view angle, i bought a 1.9mm lens (for security cameras) and installed on my FatShark.

The image definition is great, but the colors are strange. Tha black by example, looks blue on the video.

I saw that my 3.6mm default lens is "IR coated" and my new 1.9mm is not. Is it the problem??

Does FatShark Cameras accept ONLY "IR Coated" lens???

Thank you very much guys!
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Old Apr 27, 2012, 12:17 PM
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Daemon's Avatar
Lakewood, Colorado
Joined Aug 2002
28,116 Posts
Yes, that's the problem. You need to find a 1.9mm lens with an IR filter.
All CCD/CMOS cameras have an IR filter. Sometimes it is on the lens, and sometimes it
is in front of the sensor (which is why there are lenses with no filter).

ian
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Old Apr 27, 2012, 12:30 PM
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Joined Apr 2012
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Quote:
Originally Posted by Daemon View Post
Yes, that's the problem. You need to find a 1.9mm lens with an IR filter.
All CCD/CMOS cameras have an IR filter. Sometimes it is on the lens, and sometimes it is in front of the sensor (which is why there are lenses with no filter).
Thank you very much for the answer Daemon!!

But I think i'll never find this kind of lens...
It will be easier to change the camera
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Old Jun 23, 2012, 12:26 PM
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Joined Apr 2010
755 Posts
Hey guys, has anyone found a solution for this problem?

I have a Fatshark camera on order (pan/til kit) and my friend bought me a 1.9mm lens. I haven't received everything yet to test but I'm wondering if I have the same problem a smal piece of red gelatin filter will fix it.
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Old Jun 24, 2012, 07:39 AM
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neato4u's Avatar
Malaysia
Joined Feb 2012
335 Posts
you can try some video processing software (Pinnacle / Adobe Elements / Sony Vegas) to color correct it until you have a good lens.
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Old Jul 04, 2012, 02:23 PM
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Joined Apr 2010
755 Posts
Yep, pos editing filters probably works, but I don't wanna fly with that strong color cast on my googles!
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