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  1. CamFan

    outdoor IP camera to monitor the car from the 8th floor

    Correct. Or go with a telephoto lens. The biggest focal length is 50mm I've seen on a M12/S-Mount lens http://www.lensation.de/product/B3M50025/ Correction, looks like 90mm, which may be too much...
  2. CamFan

    FOV or angle of view on the DS-2CD2342WD-I

    Well, no answers for sure. China can't violate the laws of science. Focal length is focal length. Meaning, it cannot lie. Now if they stuff the camera with something other than 2.8mm lens, then you can't trust it. Unfortunately, the photo is not doing us any favors. It's not perpendicular to...
  3. CamFan

    Hikvision 2CD2432 PIR Alarm

    Here, I tied the PIR to the alarm, then used a RELAY out form the alarm to trigger record. I don't trust the image analysis, PIRs work way better. I did play with it once. I tried to meter and scope it out, but it is not a voltage output. It is likely a sink to ground. If I was going to test...
  4. CamFan

    Anyone messed with Thermal cameras ??

    Unless you have big money, forget about Z in PTZ for thermal cameras. They are usually only fixed focal length, due to the nature of the optics, which is pure germanium. The lens is really interesting, they are thick, heavy, and do not pass any visible light.
  5. CamFan

    SMTSEC 5MP Low LIght 1/2" Sony IMX178 Dome

    I run XProtect on i5 NUC, 11 X 3MP cameras, looking to add the 12th soon. All doing 1920x1080, except 1 at 3MP. Based on menu options, it appears to do multiple alarms for motion, although I haven't set that up.
  6. CamFan

    FOV or angle of view on the DS-2CD2342WD-I

    For a 2.8mm focal length lens to achieve 109° diagonal FOV, the sensor size must be 7.85mm diagonal (6.84mm wide x 3.85mm tall). This is 1/2.3" sized sensor. I thought the HIK 4MP were Omnivision OV4689 1/3" sensors.
  7. CamFan

    FOV or angle of view on the DS-2CD2342WD-I

    https://www.ipcamtalk.com/showthread.php/2759-Hikvision-focal-length-angle-of-view-and-other-lies?highlight=FOV+lies I measured and calculated the angles and focal lengths. Found my 2.8mm focal length lenses to be closer to 3.2mm. Yeah, wtf? My math and process is good here. And forget...
  8. CamFan

    IPCT Members Only Promo!

    Registered and emailed!
  9. CamFan

    How to prevent water from getting inside my wall behind the camera mounting bracket?

    Re: How to prevent water from getting inside my wall behind the camera mounting brack Yeah, I have a plate that mounts a pair of cameras in 1 hole so I wanted enough room for a pair of connections and I didn't want to buy more than 1 stucco drill. I actually used a 35mm bit. My sleeve is...
  10. CamFan

    How to prevent water from getting inside my wall behind the camera mounting bracket?

    Re: How to prevent water from getting inside my wall behind the camera mounting brack I had to drill a 1.25" hole in my stucco to be able to shove the hik connections into, drilling up at a slight angle. Then I sleeved the hole with thin wall aluminum tubing, sealed with silicone. Then I shoved...
  11. CamFan

    Latest available firmware for DS-2CD2332-I china-english version.

    I'm happy with v5.2.0. Bought them same place & time as you did, ish. I assume they are very insecure, so I keep them off the internet: https://diysecurityguy.wordpress.com/2015/07/28/tip-isolate-your-hikvision-ip-cameras-from-the-internet-using-parental-controls-in-router/
  12. CamFan

    Why isn't there a standard bullet camera in 2.8mm lense?

    To get wide angle, you need a larger front flat glass, which increases the body diameter of the bullet. In my measurements, Hikvisions 2.8mm lenses are really more like 3.2 - 3.25mm, so even the domes don't give you the wide angle they advertise. Nor are the actual angles correct...
  13. CamFan

    Home Run Cables - Need a solution

    Think about a UPS on that switch too. Assuming you have one in your main closet.
  14. CamFan

    12V power through Cat5e?

    Not so fast. You need to deliver 38 watts at 12V plus or minus 10%, which gives you a range of 10.8V to 13.2V. Worst case is you need to deliver 3.5 Amps (38W/10.8V) at the lowest voltage. So using the bulk cable calculator, put in 3.5 A and 13.2V. 14AWG will droop to 11.4V at 200 ft...
  15. CamFan

    25mm Lens for ds-2cd2032-i Mini-Bullet

    I remember just letting it float in the housing. I was able to close it up fine, bit of pressure acting on the lens, but it's been working since. Ideally the right standoffs and screws can be sourced, and possibly a spacer for the housing could be 3D printed, but lots of work there. In in...
  16. CamFan

    Sensor size and why dont they use bigger ones.

    I think 1/2" will be as big as they go. S Mount/M12 lenses seem to max out at 1/2". Going to 2/3" and larger will be a c-mount lens. It has to do with image circle coming out the back of the lens being able to cover the entire sensor. It's all about economics of scale. The small sensors they...
  17. CamFan

    Sensor size and why dont they use bigger ones.

    Pixel size has nothing to do with processing power, pixel count does. Bigger pixels can be exposed to more photons, thus can be better in low light. Bigger sensors need bigger lenses and will have shorter depth of field. For security, you want long depth of field so everything is in focus...
  18. CamFan

    FIber optic power level question

    You don't need an OTDR. Nice to have, but not needed. Get yourself a optical fiber meter that works at least with 1310 nm. Disconnect the fiber from the TX and measure the launch strength at the device's TX output in db. Then reconnect fiber at the TX end only and go to the far end of the...
  19. CamFan

    Replacement for 2332 ?

    DS-2CD3332 is USA version, the ones I received have UL stickers on them, came with red & white box, English. Otherwise, same as my DS-2CD2232 (brown box, chinese, no UL sticker). Mechanics & electronics for both are identical. I run 5.2.0 on all my cameras and have no desire to upgrade or...
  20. CamFan

    Powering camera by POE and 12v?

    Not having access to the schematic, I would guess the poe power supply regulates to 12vdc. It likely meets the 12V pigtail input at this point. If designed right, they should be protected with diodes so one can't backfeed the other. Backfeeding the poe supply shouldn't be a problem. Most...
  21. CamFan

    Replacement for 2332 ?

    Look for 2cd3332 also. Same exact camera I believe.
  22. CamFan

    Any way to determine current focal length of variable focal length lens?

    There is probably no easy way, but here is the hard way http://www.ipcamtalk.com/showthread.php/2759-Hikvision-focal-length-angle-of-view-and-other-lies
  23. CamFan

    DDNS setup ? Remote viewing questions ?

    It is not advised to expose your cameras to the internet. See my blog tip https://diysecurityguy.wordpress.com/2015/07/28/tip-isolate-your-hikvision-ip-cameras-from-the-internet-using-parental-controls-in-router/?preview_id=127
  24. CamFan

    Emailing photo's.... Better configuration options?

    I would guess most people don't use this feature in the camera. It sounds like the first photo is an interval before the detection occurs, #2 is at detection, #3 is after motion detection is stopped? What firmware version are you using? It is not advised to do this in the camera as you have to...
  25. CamFan

    Amazon/hikvision

    I have ordered a few from Aliexpress and a few more recently from Amazon. I was looking for International region cameras, and was able to find them. If you look for the DS-2CD3332-I you might find them. I was able to carefully find these shipped from US for about $135 a few months back. They...
  26. CamFan

    Adding alarm I/O to Hikvisions without connector

    Ok, I've settled on Milestone + NUC as my DVR due to low power and the ability to use in-camera motion detection to trigger records. This works great. I also want to integrate outdoor PIR to trigger records. I have instances where my PIR is tripped, but I don't have video recorded. Usually it's...
  27. CamFan

    Replacement Site for Networkcameracritic.com

    Its tough to review every product out there unless you can afford to buy one of each or you have a connection to get loaners or demos. Carl covered a ton of cameras over the past few years. Tough for anyone to pull that off.
  28. CamFan

    Hik bullet Install with custom mounting plates

    Possible. I don't think it would be cheap, do the the size needed to house the RJ45 barrel. What about making a dual camera plate for a Bell 5361-1?
  29. CamFan

    Replacement Site for Networkcameracritic.com

    Well, not trying to fill his shoes by any means, I was inspired by networkcameracritic to start a blog myself. Indeed, my blog's focus is more than cameras, but I'm striving to do as good a job as Carl has done. https://diysecurityguy.wordpress.com/
  30. CamFan

    Hik bullet Install with custom mounting plates

    I decided to upload the design to Shapeways, so you can now get a 3D printed version of the 2 camera bullet plate. https://www.shapeways.com/product/SJ786ZL2H/dual-hikvision-bullet-ds-2cd2032-i-camera-mounting?li=shop-inventory&optionId=56765672
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