SD22204T-GN vs SD29204S-GN

[darkconz]

I purchased these 2 cameras a month ago and they just arrived. I started to play with the cameras and I noticed there are quite a bit of quality difference between the two.

On paper, they seem to have the same sensor maybe because 22204 has a dome on top it makes the image less clear than 29204? On 29204 I get a very clear crisp image but 22204 the image is less desirable (still good but not ad good)

Now, I know i will need the IR from 29204 because I need to put 1 of them outside to monitor my door. But 29204 does not seem as weather proof as 22204.

Other than these 2 things I think the 2 cameras a pretty much on par. Can anyone comment on if 29204 is safe to put outdoor (could be exposed to snow or rain) because I don't feel 22204 without IR can do the job for my out door camera.

Thanks

 

[gordo]

It looks like the sensor on the SD29204S-GN is a 1/2.8” CMOS and the camera is indoor, buy as nayr posted can be used outside under cover.

The DH-SD22204T-GN has a 1/2.7” CMOS sensor, what the difference is I don't know. It is an outdoor/vandal resistant camera with no IR lighting.
Nayr really covered the 29204s-gn in this thread. https://www.ipcamtalk.com/showthread.php/9163-Dahua-Mini-Black-Face-PTZ-(SD29204S-GN)

 

[darkconz]

Yeah I read nayr thread and decided to buy one to try along with the 22204 to see the difference between the two.

What model would you recommend to put outside with exposure to rain/snow and IR capabilities? I think all 22204 missing is the IR for me.

 

[nayr]

take the dome off and see if that helps, might just need a good polish of the dome.. but if there is any lighting on the dome it can cause issues.

are they both configured for the same bitrate settings? the defaults might not be the same between the two.

the weakspot of the mini black face is the top of it, if you can keep water from getting to the top I think it'll do fine outside..

 

[darkconz]

Thanks for the feedbacks, I will check with the bit rating tomorrow

 

[peraburek]

I am interested in buying SD29204S-GN but I have noticed there is also SD29204T-GN http://www.dahuasecurity.com/products/sd29204t-gn-w-1871.html

I have asked seller on Aliexpress.com what is the difference, and he told me SD29204S-GN has Sony sensor, and SD29204T-GN has some Chinese sensor

maybe that could explain your image quality question - sensor quality/difference

 

[Anto]

Don't believe in what sellers tell you or post on their websites, believe in specs posted on Dahua website.

There is no mention of Sony sensor on these two models by Dahua:
SD29204T-GN(-W)

SD29204S-GN(-W)

 

[darkconz]

I see the "S" line is a 1/2.8" sensor and the "T" line is 1/2.7" sensor. I assume the 1/2.8" is better?

 

[darkconz]

I also took off the cover and set the bitrates to be the same. The cameras are not the same quality. This could only lead to different sensor within the camera.

 

[gordo]

but of course there is no IR sensor

I believe the 22204 has an IR cut filter and sees IR lighting, but doesn't have IR lighting. You could add external IR lighting.

 

[Anto]

These are the specs for SD22204T-GN.

Model	DH-SD22204T-GN
Camera
Image Sensor	1/2.7” CMOS
Effective Pixels	1920(H) x 1080(V), 2Megapixels
Scanning System	Progressive
Electronic Shutter Speed	1/1 ~ 1/30,000s
Min. Illumination	Color: 0.05Lux@F1.6; B/W: 0.005Lux@F1.6
S/N Ratio	More than 50dB
Camera Features
Day/Night	Auto(ICR) / Color / B/W
Backlight Compensation	BLC / HLC / WDR
White Balance	Auto, ATW, Indoor, Outdoor, Manual
Gain Control	Auto / Manual
Noise Reduction	Ultra DNR (2D/3D)
Privacy Masking	Up to 24 areas
Digital Zoom	16x
Lens
Focal Length	2.7mm~11mm(4x Optical zoom)
Max Aperture	F1.6~ F2.8
Focus Control	Auto / Manual
FOV-H	H: 93.5° ~ 30.24°
Close Focus Distance	100mm~ 1000mm
PTZ
Pan/Tilt Range	Pan: 0° ~ 355°; Tilt: 0° ~ 90°, auto flip 180°
Manual Control Speed	Pan: 0.1° ~100° /s; Tilt: 0.1° ~60° /s
Preset Speed	Pan: 100° /s; Tilt: 60° /s
Preset	300
PTZ Mode	8 Tour, Auto Scan
Speed Setup	Human-oriented focal length/ speed adaptation
Power up Action	Auto restore to previous PTZ and lens status after power failure
Idle Motion	Activate Preset/ Pan/ Scan/ Tour/ Pattern if there is no command in the specified period
Video
Compression	H.264 / MJPEG
Resolution	1080P(1920×1080)/ 720P(1280×720) / D1(704×576/ 704×480) /CIF (352×288/352×240)
Frame Rate	Main Stream	1080P/ D1 (1 ~ 25/30fps), 720P(1~50/60fps)
Sub Stream 1	D1/CIF(1 ~ 25/30fps)
Sub Stream 2	720P/ D1/ CIF (1 ~ 25/30fps)
Bit Rate	H.264: 448K ~ 8192Kbps, MJPEG: 5120K ~ 10240Kbps
Intelligent Function
IVS	Tripwire, Intrusion, Abandoned Object Detection, Missing Object Detection,
Face Detection	Support
Network
Ethernet	RJ-45 (10/100Base-T)
Protocol	IPv4/ IPv6, HTTP, HTTPS, SSL, TCP/IP, UDP, UPnP, ICMP, IGMP, SNMP, RTSP, RTP, SMTP, NTP, DHCP, DNS, PPPOE, DDNS, FTP, IP Filter, QoS, Bonjour, 802.1x
ONVIF	ONVIF Profile S
Max. User Access	20 users
Smart Phone	iPhone, iPad, Android, Windows Phone
Auxiliary Interface
Memory Slot	Micro SD, Max 128GB
General
Power Supply	DC12V, POE
Power Consumption	10W
Working Environment	-30ºC ~ 60ºC / Less than 90% RH
Ingress Protection	IP66 ; IK10
Dimensions	Φ122 (mm) x 89 (mm)
Weight	0.6kg

 

[dexterash]

As a general answer regarding sensor size:
the smaller the sensor is, the less light it will capture (so less sensitive). Also, at the same resolution, a smaller sensor might show more noise (especially during the night). Also, there might be a difference in the horizontal and vertical angles, depending on the optics.

 

[Anto]

I found this video on youtube of SD22204T-GN which does not have an infrared illuminator:
I have to say the video does not look bad, to my eyes it looks good.

 

[nayr]

add some IR flood lights on important targets and chokepoints.. alot of people find external IR is preferable to built in IR because it keeps the bugs away from the lens and wont lightup rain/fog/dust as badly.

or add some visible lighting, its cheaper..

 

[nayr]

the mini black face has 360 degree rotation,

Pan: 0° ~ 360° limited; Tilt: 0° ~ 90°, auto flip 180°

the dome has 355 degree rotation, so not quite full 360.

Pan: 0° ~ 355°; Tilt: 0° ~ 90°, auto flip 180°

With high zoom PTZ's you def want onboard IR, they usually have multiple channels with wide and narrow focus that turn on/off as you zoom in.. no need to have a 45 degree flood light when you have a 5 degree FOV and vice versa.. but with under 12mm optics, its well within the range of most flood lights so external lighting w/a PTZ should not be too much of a problem.. the mini black face has a dimmer on its IR that gets brighter as you zoom more, but its all flood lighting (vs spotlighting)

 

[gordo]

After googling around, I think the 1/2.7” CMOS sensor is an Aptina/ON semiconductor sensor.
The 1/2.8” CMOS sensor is a Sony Exmor. There isn't a lot out there for comparison, but
I did find a couple of threads, one a little old.
https://www.ipcamtalk.com/showthread.php/134-Dahua-Eco-Savvy-Line
https://www.ipcamtalk.com/showthread.php/6252-SD22204T-GN-any-reviews?highlight=aptina

 

[darkconz]

I too believe the image quality difference is between the sensors that is offered. I am considering to add in sensors to my doors so that when people approach, it turns the lights on so that way I do not have to deal with no light.

 

[Del Boy]

I don't think either are Sony Exmor

DH-SD32203S-HN actually says Sony Exmor on the data sheet.

http://www.dahuasecurity.com/uk/download/DH-SD32203S-HN.pdf

 

[nayr]

This page on the side says its an 1/2.8” 2Mp Exmor CMOS: http://www.dahuawiki.com/USA/IPCamera/PTZ/Lite/DH_SD29A204SN_GN

The page for the dome, does not say whom it is: http://www.dahuawiki.com/USA/IPCamera/PTZ/Lite/DH_SD22A204TN_GN

My big black face dahua definitely has a 1/2.8 2MP Exmor CMOS, and its quality both day and night is basically identical to the mini black face.. so I am pretty confident the Mini-BF is a Sony

 

[Del Boy]

You are probably right as you know more about Dahua. But that first link you sent doesn't say Sony Exmor.

Also I've seen lots of adverts for IMX222/322 back when I was first buying these types of cameras and they all varied from 1/2.7" and 1/2.8".

It's odd that Dahua don't advertise that as they do advertise it on other models.