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Low Profile197

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  1. Low Profile197

    Can a Camera be to Good

    the seintient camera is probably a low cost 960H camera which is not 1000tvl but around 700 tvl. or a AHD or CVD camera but still same problem. the cameras native imagesize is 16:9 so not 4:3. the image is there atered to be able to record it, your DVR is probably not good enough to process this. buy a DVR that can cope with this size and your quality will improve. so yes a camera can be to good, but only for your DVR. for me a camera can never be to good
  2. if i set the stage/ surroundings, dark woods in the night, i bet you the lower the amount off pixels the better it becomes. (not an issue for TS because of light in a restaurant) but a sensor with less pixels gets more light per pixel and is there for most of the time more light sensitive and has less noise, SO WILL BE clearer. so dont say that for every situation. i think that if you have a cosy dark romantic small restaurant, you will have problems in the evening when there is no light comming from outside thru the windows, a 4MP camera will hav a lot of noise in the image, maybe even in black and white. (noise can be smaller because of smaller pixels but it will be there more than a lower pixel camera)
  3. [quote="tomcctv. You keep on that op needs 30 fps ..... Are you talking FRAMES fps OR FIELDS fps .......30 fields ps is 15 frames ps ....... Also fields ps and images (ips) are worked out the same an IP camera cant do fields, it is recordingline not halve images. also a NVR can not get full 30fps NTSC or 25 on PAL, i can not believe a system not working on UDP. you are going to miss frames in your recording, your camera can send it, but i dont believe you will get them ALL, of all your camera's on high resolution. 15 is enough for most things, a cashregister i would try to get as high as possible, but that is only 1 camera. there is nothing that will be different in 1/12 1/2th or 1/15th of a second.
  4. For light sesitivity if needed not a bad solution, but a well lit restaurant not a first choice indeed TVI: impressive with reasonable good images and suitable for longer cables CVI AHD HDcctv: crappy digital compression, not much better then 960H when using longer length or excisting low quality coax (over 50 meters) HD-SDI: more expensive (almost same as IP) not suitable for most excisting coax over 50 meters, but very very good images, but not so light sensitive. More pixels means less lightsensitivity and also more problems with depth/sharpness because off the lens needing to open more for letting more light in. downside of IP is the way a sensor is registering the image, it is more suseptable for motionblur. so nice still image but, on replay all the people are blurry. so for me no IP unlees there is no other way. i want to recognice the people in the playback. Completely agree! The downside of a dome is that the manufactorur most of the time dont mind a low quality lens, a body is still the best way, but whe it is reachable not an option. and domes outside is a big nono for me, the round glass is making lightdistortions in the image, i nevver use a housing with round dome around my cameras outside. good luck with choosing, best way is to let a profesional make a plan, searching for a profesional is as important as choosing the food in the restaurant
  5. Low Profile197

    Camera light sensitivity specifications

    Even though this is an old topic, with more and more digital "enhancement", it is very important. Stanislav is very right, you can not enhance something that is not there! And the only way to compare apples with apples is to switch of all digital systems in a camera. For years everybody accepts that we are comparing apples with oranges. I agree with soundy that with all processing on it "appears more light sensitive, but as Stanislav said it must come from somewhere, you can not make something from nothing. I tested in a studio with black studiocurtains hundreds of cameras for my employer. On exactly the same way. A lightbox with testcharts on a fixed distance, with luxmeter and dimmer in the room. To test the light sensitivity of the camera on green blue and red. And cameras with the same sensors and lens perform similar. BUT cameras with processing on perform different on same settings. A manufactor can write BLC and WDR but a good camera (quality) can give huge differences. So an expensive camera can be better, but most of the time not a lot in lightsensitivity. Or you don't mind the lower imagequality after AGC SENSUPSHARPEN S/N NOISE REDUCTION. With all on I can make some cameras look light day in a dark cloudy autumn night, but you won't see anybody walking tru it, because of all the processing. Maybe the flashlight because you can't walk there without one (-;
  6. Low Profile197

    12vdc ptz

    hI i am looking for a 12VDC PTZ with around 12x till 20x zoom, power consumption 20-30 Watt analog or AHD, i need to make a combination with a power and RS485 over coax. any ideas? i cant find any good 12 VDC camera's they are all 24 AC
  7. Low Profile197

    MAC adress help wanted

    I did a lot of that already, the problem is the manufacturers which have dozens of MAC addresses. Like samsung have a lot but most are not for cameras or dvr, but for let's say refrigerator or tv. And I can't use those for my research. And I can't buy all the cameras and send them back after buying. Same for siemens, most are not CCTV related.
  8. Hi All, i am trying to write a paper about the logic in MAC adress numbers. as most of you know, the first six numbers/letters are standard to the manufacturer. but most big manufacturer have multiple MAC adresses. i like to ask this big community for help to look up the MAC adress of their IP camera or DVR. i shamlessly copied this list to begin from peter_ ACTi (http://www.acti.com) - Midrange camera - good price - free software. Avtech (http://www.avtech.com.tw) - Has good 'push' support for events to mobile devices. Avigilon (http://www.avigilon.com) - Similar to Axis cost - must buy through dealer - good software/support. Axis (http://www.axis.com) - Popular choice - higher end cameras get expensive - easy to find online for sale - free + paid software options. Dahua (http://www.dahuasecurity.com‎) - Re-branded as Q-See - low price - difficult to find updates/support. Geovision (http://www.geovision.com.tw‎) - Midrange - have some LPR cameras. Grandstream (http://www.grandstream.com) - Low cost - have some unique features. Hikvision (http://www.hikvision.com‎) - Becoming more popular - re-branded as Lorex/Swann systems from Costco. IQinVision (http://www.iqeye.com) Midrange pricing. Mobotix (http://www.mobotix.com) - Cameras made in Germany - reliable but expensive - no moving parts to fail in their cameras. Vivotek (http://www.vivotek.com) - Midrange pricing. Other Camera Manufactures: Arecont (http://www.arecontvision.com/‎) Brickcom (http://www.brickcom.com/) Bosch (http://www.boschsecurity.us/en-us/Produ ... rkCameras/) Canon (http://www.usa.canon.com/cusa/professio ... rk_cameras) GE (Unknown Website Address) Honeywell (http://www.honeywellvideo.com/products/ ... index.html) JVC (http://pro.jvc.com/prof/attributes/cate ... tId=PRO5.2) Panasonic (http://www.panasonic.com/business/psna/ ... index.aspx) Pelco (http://www.pelco.com/sites/global/en/home.page) Samsung (https://www.samsung-security.com/) Sony (http://pro.sony.com/bbsc/ssr/mkt-security/) Toshiba (http://www.toshibasecurity.com/) if you can look at the back of your camera or DVR for just the first six, this can help me a lot. please mention the type of camera or DVR and the first
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