New Panoramic Cams from Dahua

bug99

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Panoramic Dome -
Bullet..note this has 4 2mp feeds vs 3 used in the recently released ipc-pfw8601-a180
IPC-PFW8800-A180
Why do you think they need 4 (or even 3) cameras to cover 180 deg if each camera has a FOV of around 90 deg with 3mm lens & 1/2.8 sensor?

I like that they let you adjust the settings for each sensor separately.
 

nayr

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because you can use higher zoom lenses and get higher pixel density..
180/3=60 degrees per camera
180/4=45 degrees per camera

a single lens 1080p fisheye would have ID capabilities of 2ft, the 4x can reach for ID up to 13ft away which is a bit more reasonable..
 

hmjgriffon

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because you can use higher zoom lenses and get higher pixel density..
180/3=60 degrees per camera
180/4=45 degrees per camera

a single lens 1080p fisheye would have ID capabilities of 2ft, the 4x can reach for ID up to 13ft away which is a bit more reasonable..
My thoughts exactly.
 

bug99

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I didn't see optional lens sizes, only 3mm. maybe i missed it but i looked as that was my first thought.
Lens Type Fixed
Focal Length 3.0mm​
 

bug99

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i guess i would like to see 45 deg like you mention above, resulting from 6mm lenses vs 90 deg from 3mm with 50% overlap, unless i am missing something that can be done with digital zoom.
 

fenderman

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i guess i would like to see 45 deg like you mention above, resulting from 6mm lenses vs 90 deg from 3mm with 50% overlap, unless i am missing something that can be done with digital zoom.
There is no 50 percent overlap..you cannot assume fov by simply looking at the lens..
 

yobigd20

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per documention
"The multi-Lens camera provides added flexibility for capturing wide area
video surveillance.With four 2MP sensors working in tandem to create
a comprehensive 180-degree overview,the camera can replace multiple
single-sensor cameras providing a higher return on investment. With
the field of view being divided across the four sensors,adjustments
can be made to each sensor for contrast and brightness, resulting in a
crystal-clear panorama."
 

nayr

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the 4 lens pano really takes care of the resolution concerns I had over the 3 lens pano; has much better recording resolution..
4096×1800 vs 4096×832

these cameras might be running in corridor mode, a 3mm 2MP 16:9 rotated 90 would be pretty close to 45 degrees
 

porto10002001

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Hi all,

Really interesting this camera.
Is this a camera with STARLIGHT technology? 0.007Lux / F2.0 (Color, 1 / 3s, 30IRE)
What is its price, someone has an idea ?

porto
 

yobigd20

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Hi all,

Really interesting this camera.
Is this a camera with STARLIGHT technology? 0.007Lux / F2.0 (Color, 1 / 3s, 30IRE)
What is its price, someone has an idea ?

porto
At F2.0, I wouldn't expect this to produce as good of a picture as the starlight varifocal turret that everyone loves PC-HDW5231R-Z which is F1.4.

Considering I've yet to do any cams outside (did the inside first) and am planning out the outside now, I'd rather have 4 cams than a bunch of turrets on all over the place. So it is a cost factor for me. If it's priced right I'll do it. Most likely I'll end up just going with a bunch of PC-HDW5231R-Z since that's already proven to be awesome. And I want to do this now (timeframe of weeks) than later. I can't find these for sale yet. I might want one anyway as a cool way of have a great panoramic shot of the view I have.

I would mount it at the peak of the side of my house facing outward, rolling hills and such.




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hmjgriffon

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At F2.0, I wouldn't expect this to produce as good of a picture as the starlight varifocal turret that everyone loves PC-HDW5231R-Z which is F1.4.

Considering I've yet to do any cams outside (did the inside first) and am planning out the outside now, I'd rather have 4 cams than a bunch of turrets on all over the place. So it is a cost factor for me. If it's priced right I'll do it. Most likely I'll end up just going with a bunch of PC-HDW5231R-Z since that's already proven to be awesome. And I want to do this now (timeframe of weeks) than later. I can't find these for sale yet. I might want one anyway as a cool way of have a great panoramic shot of the view I have.

I would mount it at the peak of the side of my house facing outward, rolling hills and such.




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where is that? you live in an awesome looking area.
 

zero-degrees

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Understand the appeal of them, however their cost has always been pretty salty. A lot of these panorama cameras come in the $800 - $1000 range for descent quality. I believe the previous 8601 from Dahua was in the $700's maybe. To each his own, but I would find individual cameras both more cost effective as well as a better overall solution unless circumstances require a single mount/line only with no alternative.
 

bug99

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the 4 lens pano really takes care of the resolution concerns I had over the 3 lens pano; has much better recording resolution..
4096×1800 vs 4096×832

these cameras might be running in corridor mode, a 3mm 2MP 16:9 rotated 90 would be pretty close to 45 degrees
I think @nayr is right. they are in corridor mode with only a small amount of cropping. 4096/4 = 1024 pixels per camera horizontal (94% of 1920) and 1800 vertical is 94% of 1920 for vertical. The DORI distances are the same as the 2.8mm lens version of the IPC-HDW4231EM-AS (250ppm at 4m).

I suspect that @zero-degrees is correct in that these will cost 4x or more what the IPC-HDW4231EM-AS costs, around $700+. Elegant but a bit costly.
 
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