Focal Length - Tharium IRIS User Manual

Focal Length

As seen in the above diagram, the relationship between the
sensor and the focal distance of the lens used is critical to
achieve the correct focusing of the IRIS HD Video Camera. We
placed the sensor as close as possible to the C-Mount thread
to give you the widest range of options. That also means that in
some cases you might need to add a spacer to move the lens
away from the sensor. C-Mount spacers of different sizes are
widely available, please consult your Tharium representative for
more information.
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