mike_va 0 Posted October 1, 2011 (edited) OK, this was not really meant to be a fair comparison... Bosch was already sitting in the side bay window, and I hurt my foot last week so did not feel like running around the house getting another camera. 1st pic is afternoon. In all cases Bosch default shutter is 2x sense up. KT&C rated at 0.02 lux, Bosch rated at ~0.01 lux (30 IRE and 2x sense up). The Bosch has a f1.0 megapixel lens on it. Edited October 1, 2011 by Guest Share this post Link to post Share on other sites
mike_va 0 Posted October 1, 2011 Lit up by CNB MIR1000 IR 850nm Share this post Link to post Share on other sites
mike_va 0 Posted October 1, 2011 Natural incandescent (~10x 60W) lighting from the back porch Share this post Link to post Share on other sites
mike_va 0 Posted October 1, 2011 Having done all that we did a walk test on the front of the house, it is able to get enough from the lights on the front of the house to get a very good image. The plan (long term) is to incorporate this into our intercom system. We'll only need a small hole in the external speaker for this to peek out of. Note, this runs at about the same current for 9V and 12V, as it gets pretty warm we intend to run this at 9V. Hope this helps someone, I was able to find zero images of these small pinhole cameras on the web. Maybe I just wasn't looking hard enough. Share this post Link to post Share on other sites
rory 0 Posted October 1, 2011 the S20 is 0.05 lux, but the 420TVL Exview is much better for low light. eg, from the bullets 420TVL, BW, 0.05 Lux 600TVL, BW, 0.1 Lux 420TVL, BW Exview, 0.003 Lux 600TVL, BW Exview, 0.03 Lux Those cube cameras are the same as the bullets Just without the bullet housing. Share this post Link to post Share on other sites
mike_va 0 Posted October 1, 2011 True, I considered that but at over 2x the price for exview this one more than does the job. It's never going to be phenomenal going through a pinhole, I verified that for myself putting one on a CNB BBM24F... Share this post Link to post Share on other sites
rory 0 Posted October 1, 2011 Something doesnt look right with that BW camera though, should see more with IR and even just a little bit of light, than what those images show. Share this post Link to post Share on other sites
mike_va 0 Posted October 1, 2011 (edited) Here's a partial of the front step, does not look so bad at a closer distance. Plus the 620 is a phenomenal camera, and with a pinhole you are looking at around f4 which is a lot less light than those small "bullets". Edited October 1, 2011 by Guest Share this post Link to post Share on other sites
rory 0 Posted October 1, 2011 yeah never tried one with a pinhole .. this is not KT&C but this was not even as good as the KT&C, I used one of each KT&C BW bullets at the night club - ordered all exview 420 and the store sent a variation of them including a couple cheap color ones I was like WTF?? Share this post Link to post Share on other sites
mike_va 0 Posted October 1, 2011 f1.0 vs. f4.0. However we only want one or two cams visible on the front of the house, thus the pinhole. Share this post Link to post Share on other sites
rory 0 Posted October 1, 2011 According to KT&C's site that P4 4.3mm pinhole lens is supposed to be F:2.0 and the camera is rated 0.05 Lux / F 2.0 Ive used F:0.95 lenses so I know the difference but it still doesnt look right. Even the daytime image looks messed up, like its behind a glass or something. Is that a new camera? http://www.ktnc.co.kr/english/viewtopic.php?t=436&sid=c6d3e2ae704ead30f236a0bb473553bf Share this post Link to post Share on other sites
mike_va 0 Posted October 2, 2011 They are both behind the same piece of glass. Brand new camera. Share this post Link to post Share on other sites
rory 0 Posted October 2, 2011 Maybe the BW camera doesnt like the glass then .. can you get it outside of the glass? Share this post Link to post Share on other sites
mike_va 0 Posted October 2, 2011 (edited) For kicks the 620 (1/2" sensor) with pinhole I had laying around and no sense up, and IR. This is a marshall 10mm V-PL100CS-12 Edited October 2, 2011 by Guest Share this post Link to post Share on other sites
mike_va 0 Posted October 2, 2011 Maybe the BW camera doesnt like the glass then .. can you get it outside of the glass? raining here tonight someday perhaps. I took the rating with a grain of salt. After a lot of cameras, if it's not exview or 1/2" I pretty much don't believe anything better than 0.05 lux. So many tricks some of them play adding crazy amounts of AGC etc. And I was figuring pinhole type of hit on the the 0.05 lux rating if that was even real, which matches up with what I'm seeing. Share this post Link to post Share on other sites
rory 0 Posted October 2, 2011 raining here tonight someday perhaps. I hear you, if its not rain its dengue infected mosquitos this summer has been hell for testing! Share this post Link to post Share on other sites
mike_va 0 Posted October 2, 2011 this summer has been hell for testing! to carry on with that thought, attached is the datasheet in the box. Has different values of lux rating, which do not match the website I bought it from...or the manufacturer's data sheet. Also I thought originally it was a 3.7 or 4.3 available. I think now it is 4.3mm at f3.7. In the same way, I think the other 3 (not 6) lens types are 6mm @ f2.45, 8mm at f2.97, and 12mm at f3.6. Maybe, I don't know...it is just confusing... Share this post Link to post Share on other sites
rory 0 Posted October 2, 2011 the "f" in the lens section is I guess for focal, bad translation. they have 2.45mm fixed lens options so that is all the lenses available for those types, Pinhole is 3.7mm or 4.3mm. The lux levels there dont add up. 0.5 lux is the color camera. Most likely its just a typo. Share this post Link to post Share on other sites
