On Thursday 08 October 2015 10:25:25 Jerry Scharf wrote: > Gene, > > What's the depth of field with those? > > I bought one of the $20 amazon "endoscopes". I was really disappointed > in the depth of field. I have played with real endoscopes, and the > amazing thing about them is their depth of field is from .5" to > infinity. This one had a focal distance of about 4 inches and less > than 6 inches of good depth of field. > > jerry
Up close, it will be as fussy as the f stop would suggest. But its adjustable, and I for one would like to be able to work at a known scale, so I would focus it there. It can focus as close as flush with the front of the lens shroud or closer if you can get light to it. > On Thu, Oct 8, 2015 at 12:10 AM, Gene Heskett <ghesk...@wdtv.com> wrote: > > Greetings all; > > > > I had one of those "colonoscopy" cameras you could buy on ebay for > > about $22 USD on my toy mill, and had it pretty well calibrated but > > hadn't put it to any real use as yet when I knocked it loose with an > > errant hold down bolt on that furniture joint carving jig. I'd been > > meaning to restore it as it also came loose in its teeny little > > tubular housing and would need so rtv to glue it back into the > > tubing so the cable couldn't pull it out the rear if the cable hung > > up. But making an alignable mounting was also a PITA, so its been > > waiting for me to find a round tuit. > > > > But I also had the interest in the back of my mind, so when some > > supposedly hidef webcams showed up on ebay for <$9 USD, I just had > > to see if it was a any good. Having been caught, unable to buy > > spares when this one was damaged, I thought I'd buy one for each > > machine and a spare, so I bought 4 of them. They arrived yesterday, > > and I found that cheese no longer runs on this machine, which is > > wheezy with TDE replacing KDE. TDE is a fork of KDE at about the > > 3.5 level, and improvements have conentrated on bug fixing and > > stability, which they are doing a decent job of, I am not bleeding > > from all the paper cuts the new KDE4 or 5 is inflicting on its > > users. > > > > Anyway, installing cheese pulled in about 50 more dep files > > totalling 25 megabytes, and it still segfaults. But I took the > > camera out and plugged it into the Dell 745, installed cheese there > > and it works quite well, so I believe it will work with camview and > > friends too. > > > > Its about a fat inch in diameter & 2" long, and the 640x480 image > > cheese can show me is lots closer to realtime than the older camera > > ever was. Color too is excellent, amazing for a camera that sold for > > less than 8 dollars with free shipping. But I see its up to $8.88 > > in the two weeks since I bought these. 10% discount for 2 or more. > > That would make it $31.96 USD, which is what I paid for 4 of them. > > > > < > > http://www.ebay.com/itm/USB-12-Megapixel-HD-Camera-Web-Cam-360-MIC-C > >lip-on-for-Skype-Computer-Laptop-PC-/291379169306 ?> > > > > Get them while they last folks. > > > > When I get the rest of the mills problems under control, that might > > be the next project as its small enough I can hide it inside the > > hollow bottom of the head casting of this GO704. > > > > Cheers, Gene Heskett > > -- > > "There are four boxes to be used in defense of liberty: > > soap, ballot, jury, and ammo. Please use in that order." > > -Ed Howdershelt (Author) > > Genes Web page <http://geneslinuxbox.net:6309/gene> > > > > > > -------------------------------------------------------------------- > >---------- _______________________________________________ > > Emc-users mailing list > > Emc-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-users Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
