8.7mm FL；9.1mm FL
8.7mm and 9.1 mm focal length 640*512 thermal imaging snesor are for MINI series cameras.
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13mm FL；19mm FL
640 * 512 thermal imaging, 13mm focal length and 19mm focal length, used for mid size cameras，There is a single light camera version available.
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640*512 IR 25mm FL
Featuring a focal length of 25mm and a resolution of 640x512 pixels, it comes in both single light three-axis camera and multi light camera versions.
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640*512 IR 35mm FL
640 * 512 thermal imaging with a focal length of 35mm, mainly used for large multi light cameras.
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640*512 IR 50mm FL
640 * 512 thermal imaging with a focal length of 50mm is currently TOPOTEK's largest focal length and is commonly used in large cameras.
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1280*1024 IR 35mm FL
1280 * 1024 thermal imaging, 35mm focal length, combined with ultra high definition visible light, used for large cameras.
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