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2.8mm vs 3.6mm, which do you prefer for a fixed-lens?
I agree with the points made above. Every situation is different and there is no one best for most situations. @aristobrat that is a very good placement of the 2.8mm at the front door. That all being said, personally, i am fond of the 3.6mm (87 deg FOV) lens, especially indoors. I like the... -
SD Card write lifetime?
residential grade SSD that we buy fall in the range of 1 write per day for from 1-3 years (depending on quality, which is hard to ascertain). for a drive size and data rate that lasts 3 days this equates to from three years to 9 years of writing MTBF, failing exponentially at the end of life... -
Dahua 8mp NON-Starlight HDW5830R-Z review
Lots of pictures are good. These are very useful. My first take on normalizing the images is: The middle image is about what the left camera would be at that same zoom level, with the Zoom difference appear to be ~3x ppf The first image set shows that 3x the ppf is better than 2x of the 8Mp... -
Dahua 8mp NON-Starlight HDW5830R-Z review
@happf nice post. useful data. it would be nice to know the ~lumens where it drops to worse than the 2mp. Do you have a meter that you can use? Can you compare the data rate (H265) during day and night? -
Dahua 8MP IPC-HDBW5831E-Z5E vs. 2MP IPC-HDBW5231E-Z5E
i would opt for the 8mp as well. why not chose the non-dome version IPC-HDW5830R-Z5 (bullet)? -
Help improve my 2 MP starlight footage
I think one big deal is the stuff to the left and down (fence etc). it is defining the focus for the frame. for ID, you are going to need 2x the pixels per foot. zooming in 2x will get rid of a lot of the fence so two birds one stone. Angling right should get rid of the rest. I think you... -
Blue Iris compatible doorbell/intercom/2 way audio
@Jessy , adding a bit more to @Nathan points: agree that two way audio needs to work well, with decent MIC and speaker. IT also needs to have app level control over volume and disable. agree that appearance could be nicer, but don't sweat that for now. just get the features to work well... -
Blue Iris compatible doorbell/intercom/2 way audio
There is something sketchy about that dbell company. I send a detailed email to them several weeks back. They were a spin off from Kickstarter, but neither my original nor my follow up emails got a response. They were associated with some company called "wirelessinput", but i see nothing... -
Blue Iris compatible doorbell/intercom/2 way audio
I think the residential doorbell intercom/camera market is exploding right now. there is a big hole in what is available and what technology that is economical can deliver in the volumes that the residential market will draw. I like what i see from @Jessy Beward info thus far. I suspect that... -
Dahua NVR5216-4KS2 fast playback help
shouldn't fast forward drop frames vs they to send them all along? i would think 16x would send one frame in 16 with ~the same bit rate, and allow much higher numbers like 128x. SmartPSS does not seem to display more than one camera at a time from the NVR. it looks like it is trying, but all...- bug99
- Post #4
- Forum: NVR's, DVR's & Computers
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Dahua NVR5216-4KS2 fast playback help
I use 10fps as well. @tigerwillow1 , are you getting more than 10mbps? I went into the office to try it there (vs VPN). I am having a harder time on the LAN with my win10 Bootcamp MacBPro. If i use Chrome, i get no video. If i use the latest IE, the display window is frozen inside the UI...- bug99
- Post #3
- Forum: NVR's, DVR's & Computers
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Dahua NVR5216-4KS2 fast playback help
This is probably a dumb question, but i just stated messing with the Dahua NVR5216-4KS2 that i put in our small office. How do i review the video remotely in high speed? I can use the web interface, and i discovered that I can add it a device in SpartPSS 2, where it shows up as a device type...- bug99
- Thread
- Replies: 6
- Forum: NVR's, DVR's & Computers
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IPC-HDBW4231F-AS POE not working?
There is a good chance the 24V Ubiquity supply might have damaged the DC-DC converter in the camera, the parts that take the 48vdc on the POE line and break out 12Vdc for the camera. -
pixels and bit rate
I am confused about what is happening to the pixels and bit rate when i display live feeds. If i run something like SmartPSS on my computer (ex main stream) from one camera full screen on a 1080P monitor, i see a bit rate (ex 1900 kbps) and a resolution of 1080P. when i reduce it to 1/4...- bug99
- Thread
- Replies: 1
- Forum: NVR's, DVR's & Computers
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Starlight Mp limitations
The available light per unit time (ex 1/30 second) is divided between the pixels, as @fenderman is pointing out and is in many threads. I think the term "Starlight" is a marketing term from Dahua which they attach to some of the newer models that use Sony Starvis sensors and have achieved... -
2MP HD Recessed Mount Dome Camera IPC-HDB4231G-AS
Attached is a pdf that reflects a universal hole pattern for a thin steel plate with threaded inserts (optional) for all of the dome like cameras that are of interest to me (HDBW4231F-AS, HDBW5231E-Z5, HDW5231R-Z, HDBW5830R-ZHDW4231EM-AS). Something like that will allow easy rugged installs up... -
2MP HD Recessed Mount Dome Camera IPC-HDB4231G-AS
Looks like and interesting mount form factor to the IPC-HDBW4231F-AS mini wedge, but for drop ceilings. Actually, i have been wanting to ask if there is a mounting ring that i can buy for the IPC-HDBW4231F-AS (or any other) that lines up with the mounting holes with machine screws for a drop... -
Strange issue with ultra starlight IPC-HFW8232E-Z from Andy
@fenderman is spot on here. The power supply is not the issue. the camera is not the issue. The cable and cable ends are the issue. If you are in any doubt, pick up a 50m (or even 100m) pre-made Cat 6 cable and test it out. If you want to make your own cables ( i recommend this for most... -
Camera recommendation for living room
i second the recommendation for the 3.6mm option of the mini-wedge dome (IPC-HDBW4231F-AS). It is a great value and very low profile (high WAF). 87 deg from the ceiling is the perfect FOV angle from the corners. In fact you will likely want to move it about 12" from the corner if it is a 10... -
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Ideal camera for a small choke point
pictures help a lot in proper recommendations. It sounds like you have a corridor at your entry. You have discovered some of the trade offs. I might go with the IPC-HDW5231R-Z zoomed all the way in (max zoom) and place it in corridor (vertical) orientation to catch the entrance for ID. If... -
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Dahua Starlight Varifocal Bullet Z5 7-35mm (IPC-HFW5231E-Z5)
@3-phase , I don't have my Z12s yet. Can you confirm that the Z at 12mm has the same field of view as the Z5 at its start 7mm focal position? if this is true, as the data sheet indicates, it is annoying, and something i don't understand since it has the same sensor and f-stop. -
Dahua Starlight Varifocal Bullet Z5 7-35mm (IPC-HFW5231E-Z5)
Mike, I recommend that you PM Andy, either here or via his email: kingsecurity2014 <[email protected]>, rather than in a public forum. -
Dahua Starlight Varifocal Bullet Z5 7-35mm (IPC-HFW5231E-Z5)
@turkeyshootfl , The Ultra starlight is a great camera, with excellent low light capability, as @nayr review revealed. In most situations, however, depending on budget, i deal that the much lower priced turret is a better deal and is smaller. The bullet of the same zoom range will perform... -
ordering camera and nvr+ is this a good location?
@Dxue, you are missing a lot of key features in your sketch (windows, doors, points of interest, etc). The two varifocals seem like decent first choices, and zooming in on the door is a good idea during off hoiurs (perhaps always). The two fixed mini-domes have a choice of lens sizes. if you... -
Thermal Mini Hybrid Bullet Camera
A cool new toy (pun intended). Any idea of the cost? Two lens camera. my assumption is that the color low light numbers are at a 1 second shutter, but still.. And did you see the IR Dori distances? Also, did you happen to notice the Wall-E models in the Ultra lineup? -
model number difference
I had a tough time finding that link/reference at the time as well. I think @HalfMoon has it right. I see this as being a minor thing. I normally want the smaller one (size matters :)), but the larger E-Z might be convenient for two reasons. 1. drops on to existing or a wider range of mounts... -
Dahua Starlight Varifocal Bullet Z5 7-35mm (IPC-HFW5231E-Z5)
yes, POE via the single RJ45 connection will be all that you need to connect and operate the camera, passing both power and data on the same wire and connection. The remaining connections will not be connected and should ideally be sealed from the weather in a box or with tape, but it is not... -
Dual Wan vpn router recommendation
Untangle Sounds interesting. I am curious about the free version. what do you get compared to stock router NAT plus firmware? Is the $50 / year basically DPI of a full blown firewall on a home router (ex Linksys) without the $500/yr price tag (or 5x of this for 100 users)? For those prices...- bug99
- Post #10
- Forum: IP Cameras