https://www.hddkeep.com/product/aida-imaging-cs-2812v-hd-varifocal-2-8-12mm-manual-iris-cs-mount-lens/
AIDA Imaging CS-2812V HD Varifocal 2.8-12mm Manual Iris CS Mount Lens | Video Cameras | hddkeep.com
AIDA Imaging HD Varifocal 2.8-12mm Manual Iris CS Mount Lens