todd2 0 Posted March 23, 2011 Many models of board camera have models with the normal screw lens, and several types of pinhole lens--conical, flat, etc. What I'm wondering is if with the pinhole models, is there a piece of glass or plastic in the hole, or is it just a real hole straight to the camera ccd? The reason I'm wondering is the use will be a dusty environment so I don't want dust getting inside. Needs to be more covert than normal lens will allow. Share this post Link to post Share on other sites
rory 0 Posted March 23, 2011 as its a lens it will be glass there. Share this post Link to post Share on other sites
todd2 0 Posted March 23, 2011 Ok thanks, reason I asked is I remember as kid building a little camera whose "lens" was a tiny hole. A pinhole camera. You can google this. So I felt I should check that there's actually something in the hole in this case. Share this post Link to post Share on other sites
rory 0 Posted March 24, 2011 the cone shaped pinhole lens is good for hidden cameras. There are various types, example from one manufacturer: http://www.ktnc.co.kr/english/viewtopic.php?t=508# The cone type with the 4.3mm lens, make a small hole in something then put the lens tip into that. Personally Ive not actually used one yet, I use regular board lenses or varifocal lenses mostly. Share this post Link to post Share on other sites
