mike_va

If it has a browser you could try something like this, works fine w Firefox viewtopic.php?f=2&t=23345

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Have not seen any reasonably priced gigabit w POE. My rig right now runs at 70-80Mbs, my synology NAS I've seen peaks on the network of 60MBs (or 480Mbs). I also have netflix and other stuff on the network why bog it down? Content is only going up in the future, including cameras... Thus right now I kind of consolidate cameras on two 10/100 POE switches, and tie those to the Gigabit switch to the computer. Take it with a grain of salt, I'm not a networking expert

I have various axis encoders and the multiple streams are nice on to record, one for web page. I've seen the 241Q go for around $400 used on ebay. I use 241S and 243. Keep in mind cameras depending on the compression will be 15 maybe 19Mbs, I used gigabit and 10/100 mixture had to do it over I'd buy gigabit and POE injectors for $20 ea.

Does using an auto iris lens result in slow shutter speeds during the daytime? I was just pondering this, thinking maybe it will attempt to reduce light to the default lowest speed e.g. 1/60s. Whereas if an auto-iris lens was not used the camera would be forced to increase the shutter speed during the daytime. Thanks for any help, have not found a good answer to this in my searches.

Yep, I've learned something today. Went downstairs and pulled the autoiris I've got on a LTC0355, then AES shows up in the menu. Otherwise says OFF or FL (flickerless) if autoiris lens present... LTC0620 gives more flexibility, in that a default shutter can be used (until it runs out of light). May amuse myself over the next few days and tap into the autoiris drive just to see how much it is active at different default shutter speeds... The other thing I may do is wire the iris to be open on some cameras, where they don't get a lot of light and see what happens. I have a lot of auto iris lenses, and not many of the standard type.

Yep, an IP encoder. I'll have to think about how to test with a monitor, I notice it on playback frame by frame. Watching the video for example it's not as noticeable as I think the brain kind of reconstructs what it wants to see. I think I understand the gamma idea, raise the shutter pic gets darker from fast shutter...I'll have to play with that I'm not even sure the old Bosch 0355 has shutter speed options. Even with a fast moving car there is no adjustment required with the P1344. Reading this website http://www.idealcctv.co.uk/cameraspecifications.html#Shutter "Engineer Tip: Be sure to TURN OFF AES when an Auto Iris is being used" There is not a rationale given, but it makes me wonder if it's relevant somehow.

I appreciate everyone's patience explaining all this. I wonder if the Axis 1344 does so much better with fast motion being designed perhaps to be more like a digital camera. I guess I see these at the point of being accessible to more people (kind of like other technology has developed e.g. camcorders), but the analog offerings seem to be lacking compared to the results I get with IP. At least with the stuff that's come out in the last few years. I have a 2120 that has poor low light and is still interlaced not progressive... Especially when I think about the exposure metering and options that are built into DSLR's (some of it automatic) now it just amazes me that analog cameras seems to have kind of languished to a large extent. It is interesting tonight I was reading about some minor vandalism that occurred in our neighborhood and just reading the responses in terms of cameras having become more acceptable, even google has a button for webcams on their maps now. I could theoretically add a coupla cameras to that for them...

I doubt it's the 243, since I have a CNB BBM24F on a 241S at the moment does the same thing with fast moving objects (squirrel jumping for example). Walking around type speed they are all fine. I'm not using DSS or Sens up normally.

Bosch 0610 as an example. Let's say strongly backlit so the iris closes down. Does it close down enough to go the slowest shutter, or just enough to get to a moderate shutter speed? Perhaps on the Bosch 0610 it is worked out, as there is a default shutter speed - it keeps it at least there until you run out of light. Simpler models like the 0355 do not have those options. The other part was with frame integration, I wonder if that is a rolling average or accumulate and dump? i.e. average sample 1-2-3-4-5-6 send average 2-3-4-5-6-7 send etc or average 1-2-3-4-5-6 send average 7-8-9-10-11-12 send I tend to think of this in DSLR terms, where I know that 1/60 second is not fast enough to capture clearly something moving fast. E.g. if you looked at one frame of your DVR with an object moving quickly across. I've seen it on traffic cams, the picture that is posted when a car accident occurs and traffic is still going by. You can see the interlace, but there is also some motion blur. I only see this on the P1344 at the lowest light with something moving pretty fast. I guess I'm just surprised that CCTV analog cameras are not more like DLSR's, where you have a choice in terms of priority. On the other hand, they are fine for someone standing in line at a bank.

I can buy that. Just surprised not to see it mentioned more.

In this case I've got the 0610 on an Axis 243 encoder.

I get that part, but here's what I'm unknown on: The camera has auto-iris will will reduce the amount of light, thus affecting the shutter speed (camera can also act to use the electronic shutter, and will slow it down as there is less light). Which one wins? Does the auto-iris reduce light to the point where the shutter is set the slowest speed, which seems counter-productive to capturing moving objects? Or is the camera smart enough to reduce it somewhat using the auto-iris, still allowing the shutter speed to remain high?

Yep, I should have been more clear. I'm trying to get my head around why my axis 1344 are so much better capturing motion than my analog cameras (e.g. Bosch 0610) even in the daytime. Although I've got to admit I have not exhaustively played with the 0610's settings yet... Another question I've had on my mind: does frame integration (sense up) still result in 30fps? This would be interesting, since you would still get 30 frames, with the possibility that one or two would be not blurry. Whereas with the 1344 for example at 1/6s you will only get 6fps max?

http://www.usa.canon.com/cusa/about_canon?pageKeyCode=pressreldetail&docId=0901e024802bf950 "These proprietary components work together with a high-sensitivity CMOS sensor to enable the cameras to capture potentially crucial image detail in low-illumination environments down to at least .03 lux at f/1.6 and 1/8 sec. in color and at least .001 lux at f/1.6 and 1/8 sec. in black and white." These look like they might be pretty good, but have not noticed Canon mentioned on these forums.

I started out with 10/100 because I needed the POE. If I had to do it over would have probably bought POE injectors (I think they are around $20 ea) for the few cameras that needed it. Gigabit w/o POE is pretty inexpensive. With 3x 1.3MP and 9x VGA I am around 70-80Mbps. Oddly a new "ZT systems" computer I bought to record all this had a 10/100 port, ended up replacing that with a Gigabit port. As soon as you start streaming movies etc you are going to want the extra on your network. Hope this helps.

On the BBM-24F I've not had to do that so not sure. Here is what was in the BBM-20F pamphlet, hope this helps.

CNB MIR1000 illuminator. Axis has a 1.6 lens, CNB has a 1.4 (lets more light through than 1.6). BBN24F: P1344 at 1-30s: P1344 at 1-60s:

CNB BBM24F beats Bosch 0620 and Pan 484 on low light and IR sensitivity, at a much lower price. Quality is not as good, and you don't get as good a pic in the daytime. 484 is not that great for low light based on my experience. On the other hand you can buy a B&W Bosch used for less than $5 LTC0355. It is not as sensitive as CNB but nicer pic. The Bosch 0620 has a beautiful pics, and both that and the 484 have controls that are useful. viewtopic.php?f=5&t=24524 viewtopic.php?f=5&t=24135 One thing I always get confused at looking at the data is the BBM-20F seems to have better specs than the BBM-24F? I thought I read somewhere they were the same but the 24F had dual voltage.

I remember when they did it for the inauguration http://gigapan.org/viewGigapanFullscreen.php?auth=033ef14483ee899496648c2b4b06233c http://gigapan.org/

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The only thing I can suggest is to test walk/run your proposed solution. I do a similar thing in the back yard with analog cams, 1 overview and a few zoomed at choke points. What I did at home under the eave like you was get some 1/4" thick vinyl board at the home depot and a 4" hole saw. Those pieces under the eave (if they are like mine) are sectional kind of clipped together and can be replaced with a piece or two of the vinyl. Be very careful with the hole saw if you go that route, I tore up the side of my thumb when it caught and slipped... I have a Bosch 0620 which has a default shutter setting, not sure if the 495 does also. You may want to increase that, on the 0620 it will ignore it for low light but if there is enough light will use the faster speed.

You might want to test it out at night, hard to get good pics without some light. If you can get them pointed where there is light that helps, or use a motion flood. Also review how many pixels you need for identification, even the 495 is still just ~0.3MP.

Same here, wondering how well it would do blanking out car headlights.