ADVANCEDPROJECTS
116 OCTOBER2020|COMPUTERSHOPPER|ISSUE392
The easier of the two launch lenses to use
is the 16mmtelephotolens. As aC-mount
lens, you need to use the C-CS adaptor,so
just remove the dust caps fromthe lens and
HQCamera, and screwon the lens.
Using the smaller 6mmWide Angle lens
forthe first time is more awkward, as you
need to unscrewone of the three sections
four or five whole rotations to achieve the
correct focus; at firstglance,it’s not even
obvious the lens has three parts. The easiest
waytoget started is to screwin the aperture
thumbscrew(marked Open/Close) and
then loosen the focusthumbscrew(marked
Near/Far) almost to the point of it falling out.
With the front two sections nowlocked,
it should nowbe possible to unscrewthe
third section ‘Near-wise’four or five times
until the silver ring appears between the
aperture and focal rings. Tightenthe focus
thumbscrewand you’ll be able to take
some test photos that are reasonably in
focus. As the 6mmWide Angle lens uses a
CS mount, you also need to remove the C-CS
adaptor fromthe HQCamera mount.
TAKEYOUR SHOT
While you can set up a‘headless’ HQCamera
with aPi, you’ll quickly hit amajor snag:
there’s no screen. This makes it trickyto
set basic focus, let aloneuse other
photography techniques. Of course,it’s
entirely possible to add asmall screen to
your Pi, but fornowwe’ll use astandard Pi
setup with the full-fat desktop installation
of Raspberry Pi OS. The easiest wayto
install this on anewmicroSDcard is to
use the newRaspberry Pi Imager from
http://www.raspberrypi.org/downloads.
⬆TheHQCamera has adjustable back-focus, which needs tobeset usingthe toothed ring 1 andlockedinplacewiththescrew 2
2
1
➡Remember to enable thecamera connection
foryour Pi
