Oh! OK. The LTS CMIP3032-28 is based on the predecessor DS-2332WD-I so the images are not relevant wrt the topic "DS-2322WD-I 2MP EXIR turret". The new WDR 2MP turret has an entirely different sensor than the old 3MP turret. Thanks anyways.
DS-20322WD-i 2MP Exir turret
- Thread starter reeves1985
- Start date
Yes, I'm in the same situation. I'm looking for a solution to cover a narrow path way and I don't need 4MP to do it. According to the ipvm.com calculator pixel density using the 2MP version with a 4mm focal length objective is sufficient to do identification at 3m and recognition at up to 12m.
The 4MP version will just add another meter distance for identification (4m) and bump up recognition range to 15m. That's not much use to my operational requirement. I'd rather have better low light behavior. I hope that the DS-2322WD-I is better in this regard as it has the bigger sensor (1/2.8" vs 1/3") and can capture more light per pixel due to the bigger pixels.
source: http://www.axis.com/files/feature_articles/ar_perfect_pixel_count_55971_en_1402_lo.pdf
The 4MP version will just add another meter distance for identification (4m) and bump up recognition range to 15m. That's not much use to my operational requirement. I'd rather have better low light behavior. I hope that the DS-2322WD-I is better in this regard as it has the bigger sensor (1/2.8" vs 1/3") and can capture more light per pixel due to the bigger pixels.
| Operational requirement | Horizontal pixels / Face | Pixels / cm | Pixels / inch |
| Identification (Challenging conditions) | 80 px/face | 5 px/cm | 12,5 px/in |
| Identification (Good conditions³) | 40 px/face | 2,5 px/cm | 6,3 px/in |
| Recognition | 20 px/face | 1,25 px/cm | 3,2 px/in |
| Detection | 4 px/face | 0,25 px/cm | 0,6 px/in |
Here are three cameras that you can look at and see if they will work for your situation. All three are offered by Nelly's Security, a member on here. First is the Dahua IPC-HDBW2300R-Z, next is the ESIP-MP3-DMZF1, and last is the ESIP-PTZMICRO . Maybe one of those will work for you. With any external camera we recommend adding white light if you want to keep the image in color at night or add external ir if you want a better night image.
Thanks for the suggestions. I'll definitely add white light to the scene. I'd prefer recording at night in B/W mode without IR, but I'll first have to see what shutter speeds are possible then. I'm not too big a fan of IR as it tends to glare and can be exploited easily.
Yep you can disable ir and just use a good amount of white light to include motion lights. I want to start using color at day and night. Going to have to really have good white light output so that I can actually tell colors.
So you like normal 2MP vs 120db version, could you summarize your experience on this, greatly appreciated.
Del Boy
Getting comfortable
I also think the 2MP non-WDR cameras have a great image but the WDR does make a difference. Put them both at zero and you'll see a difference (it's passive at zero), put the WDR at 15 on both and the difference will be very noticeable.
Obviously lighting conditions are important, if you are pointing towards the sun then you will notice WDR more, if you are pointing away from lighting sources, well... it won't make much if any difference.
Del Boy
Getting comfortable
+1, the 2MP/3MP is still great in the right locations! And is great-value too.
Next thing i'm looking for now is a good black face ir illuminator.
Kawboy12R
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I use one of the following. I've had it maybe 4 years with intermittent use but it still works fine. Invisible 940nm IRs too- no red glow at all. It's black but might be too big for some tastes.
http://www.amazon.com/CMVision-Invisible-IR-200-940-Wavelength-Illuminator/dp/B004PLOPDS
http://www.amazon.com/CMVision-Invisible-IR-200-940-Wavelength-Illuminator/dp/B004PLOPDS
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