Couple of forums and people I've spoken to have mentioned that 2.8 and 4mm lens have been found to be out of focus on certain parts of the scree, the 6mm sits nicely in the middle of the lens range, i.e. 2.8, 4, 6, 8, 12mm hence the reason why its a popular choice
DS-2CD2335FWD-I - Hikvision Ultra Low Light 3M camera
- Thread starter MrRalphMan
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Couple of forums and people I've spoken to have mentioned that 2.8 and 4mm lens have been found to be out of focus on certain parts of the scree, the 6mm sits nicely in the middle of the lens range, i.e. 2.8, 4, 6, 8, 12mm hence the reason why its a popular choice
I have a 2CD2335 with 2.8mm and the focus is perfect. My supplier has difficulties getting the 4 and 6mm versions from the Holland HIK distribution center. HIK does not provide any real explanation or delivery date, they just stall the order. Pity, it's a very good quality camera and very good value for money. If HIK could improve a bit on their firmware ...
My two 4mm are a lot better than my 6mm for focus. (See the earlier posts where I ended up disassembling the 6mm to refocus it.) I had trouble getting a 12mm and gave up on waiting for one.
Parley
Known around here
I only have two of the 6mm versions and so far so good. No problems. There is a new vara-focal turret out that I am interested in purchasing. However I have not seen any for sale yet. Here it is.
DS-2CD2H35FWD-IZS
3 MP WDR Vari-focal Network Turret Camera
DS-2CD2H35FWD-IZS
3 MP WDR Vari-focal Network Turret Camera
• 1/2.5" Progressive Scan CMOS
• 2048 × 1536 resolution
• 2.8 to 12 mm focal length
• Ultra-low light
• H.265, H.265+, H.264+, H.264
•120dB Wide Dynamic Range
• BLC/3D DNR/ROI
• IP67, IK10
• 4 behavior analyses and face detection
Parley
Known around here
I only have two of the 6mm versions and so far so good. No problems. There is a new vara-focal turret out that I am interested in purchasing. However I have not seen any for sale yet. Here it is.
DS-2CD2H35FWD-IZS
3 MP WDR Vari-focal Network Turret Camera
• 1/2.5" Progressive Scan CMOS
• 2048 × 1536 resolution
• 2.8 to 12 mm focal length
• Ultra-low light
• H.265, H.265+, H.264+, H.264
•120dB Wide Dynamic Range
• BLC/3D DNR/ROI
• IP67, IK10
• 4 behavior analyses and face detection
There's a 2MP version too DS-2CD2H25FWD-IZS Hangzhou Hikvision Digital Technology Co. Ltd. . US$270 here Hikvision 2MP Vari focal Security IP Camera Ultra low light H.265 DS 2CD2H25FWD IZS Turret CCTV Camera 2.8 12mm face detection-in Surveillance Cameras from Security & Protection on Aliexpress.com | Alibaba Group
Hey @Parley they've got the 3MP version for for US$279 Aliexpress.com - Online Shopping for Electronics, Fashion, Home & Garden, Toys & Sports, Automobiles and more
It's great to see they've got built in audio too, a true competitor to the Dahua IPC-HDW5231R-Z.
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Parley
Known around here
Thanks Triumph for the links. I will have to order the 2mm one next week and give it a try. I have just the spot for it.
What is interesting is that in the specifications it says IR is 30M. However I cannot see an IR light on the camera. Does not matter to me as the spot I will be putting it in does not need IR.
What is interesting is that in the specifications it says IR is 30M. However I cannot see an IR light on the camera. Does not matter to me as the spot I will be putting it in does not need IR.
Parley
Known around here
Edit. I just said to myself, what the hell and went ahead and ordered the 2mm version. There was a $2 coupon so the total price was $268. I bet the price comes down in the future if it is going to compete with the Dahua version. Then again the price is probably high because it just came out.
Installed the 1st of my batch of 2335's for a guy today along side his existing 2342 and very impressed. Everything is at default for now but the video stream of the 2335 is so fluent especially when you see moving ubjects like birds or a dog running around. Fantastic to watch and the video in low level light remarkable.
The 2342 stream is so slow. It's like everything is moving in slow motion. Has this to do with it being a 4MP and the higher resolution? Client views it via IPad or IPhone. I don't think I will be purchasing a 2342 again and I think I will flog any I have as quick as possible.
Client has a DS-7616NI-K2/16P NVR and it won't display anything when the cam is set at H.265 but works fine on H.264. Why is that? Cam is set at H.265 for both.
The 2342 stream is so slow. It's like everything is moving in slow motion. Has this to do with it being a 4MP and the higher resolution? Client views it via IPad or IPhone. I don't think I will be purchasing a 2342 again and I think I will flog any I have as quick as possible.
Client has a DS-7616NI-K2/16P NVR and it won't display anything when the cam is set at H.265 but works fine on H.264. Why is that? Cam is set at H.265 for both.
I've got four 2342's and they easily beat my 2335's for daytime detail and clarity. I'm not going to replace any of them yet as I'm sure there will be even better cameras in another year or two. They're fine for smaller closed in areas where the inbuilt IR is capable of lighting the area at night.
Regarding the NVR, I'm pretty sure mine is the same model only the 8 port 7608 version. I've got all my 2335's running H265 at 8192kb/s (IIRC.) The 2342's are on H264 at around 12192kb/s (IIRC.) I view them via the 4K HDMI output. Edit: My NVR is this one DS-7608NI-I2/8P-Hangzhou Hikvision Digital Technology Co. Ltd. 7608NI-I2/8P
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Thinking of replacing my Hik NVR with one which can do H265 recording, any recommend which is the best 4 channel Hik NVR for H265 recording?
triumph, will the lower bandwidth use of H265 improve the smoothness of the live video via Phone App? Currently my Mobile App video staggers along (obviously resolution and phone connection are factors)
Is there any drop in quality in the saved H265 video when saved to the NVR?
Is playback and copying video from the newer Hikvisopm NVRs any easier, I know it's a right chew on copying video from my current Hik NVR.
triumph, will the lower bandwidth use of H265 improve the smoothness of the live video via Phone App? Currently my Mobile App video staggers along (obviously resolution and phone connection are factors)
Is there any drop in quality in the saved H265 video when saved to the NVR?
Is playback and copying video from the newer Hikvisopm NVRs any easier, I know it's a right chew on copying video from my current Hik NVR.
Parley
Known around here
I also have the DS-7608NI-I8/8P and my H265 cameras will not work in that mode. I have to drop them back down to H264. Anything special that needs to be done with the NVR to make it pick up the H265 streaming. The NVR is rated for it.
jrdnlc
n3wb
Any difference between the 2335 and the 2352/2355 that were just released? I know the 2355 has EXIR 2.0 and more MP.
Is DS-7608NI-I8/8P the correct part number? My 7608NI-I2/8P works fine with H265. (H264+ is a dismal failure though with my 2342 cameras.) Perhaps your firmware is the problem?
The 2355 low light readings published on the Hik websites are incorrect- it's not actually Min. Illumination: | Color: 0.005 lux @(F1.2, AGC ON), 0 lux with IR, that should read Min. Illumination Color: 0.01 lux @(F1.2, AGC ON), 0 lux with IR from http://overseas.hikvision.com//uploadfile/image/10725_SpecofDS2CD2355FWDI20170122.pdf
Did you also mean to write 2325 with the other model- that's the 2MP version of the 2335? There is another thread on here about it. There's not much on a 2352, it seems to possibly be a Chinese model and doesn't have anything out of the normal for low light specs here Aliexpress.com : Buy DS 2CD2352WD I free shipping Latest Original Hik...vision ip cam CCTV surveillance dome camera 5MP IR PoE security 1080P from Reliable secure business suppliers on Vision Technology Co., Ltd
Sorry, I can't really comment on much of the above @sharharp. It's my first NVR and I don't have it connected to the internet. H265 obviously lowers your overall bit-rates, so less network traffic should speed other tasks up. There shouldn't be any loss in quality as the NVR is just recording the stream from the camera- AFAIK all the quality type settings are executed in the camera itself.
I did my first large video transfers today onto a USB 3 hard drive via the front USB port (I need to check if that's USB 2 or 3.) I transferred around 7hrs of H265 and it didn't seem to take too long - 10 minutes maybe (I didn't time it.)
Edit: front port is USB 2 - I should have plugged it into the rear port which is USB 3! http://www.hikvision.com//uploadfile/image/510789_VSDS7600NII2PSeries090816NA.pdf
jrdnlc
n3wb
The models I was referring to are DS-2CD2355FWD-I and the DS-2CD2352-I. How do those compare to each other along with the DS-2CD2342WD-I. Does the EXIR 2.0 make a difference?
Sorry I'm a bit new to this but learning as I go lol.
Edit: Just looking at the best options to cover fron and rear of the house and side pathways.
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Does low light vision worry you? This thread's about the 3MP ultra low light 2CD-2335FWD-I- any of those other cameras won't be anywhere near as good in low light conditions. If it's a small area (that their built in IR can fully illuminate) then it won't necessarily be a big deal. Out of the ones you've mentioned the DS-2CD2355FWD-I would be the best IMHO; it's more up to date (hardware wise) than the DS-2CD2342WD-I. They'll both give similar results in low light going by the specs.
So, as an example you'll be looking at this for a DS-2CD2342WD-I 2.8mm at night (locked in colour mode using visible flood lighting)
vs
DS-2CD2335FWD-I 4mm (left in auto day/ night)
jrdnlc
n3wb
Does low light vision worry you? This thread's about the 3MP ultra low light 2CD-2335FWD-I- any of those other cameras won't be anywhere near as good in low light conditions. If it's a small area (that their built in IR can fully illuminate) then it won't necessarily be a big deal. Out of the ones you've mentioned the DS-2CD2355FWD-I would be the best IMHO; it's more up to date (hardware wise) than the DS-2CD2342WD-I. They'll both give similar results in low light going by the specs.
So, as an example you'll be looking at this for a DS-2CD2342WD-I 2.8mm at night (locked in colour mode using visible flood lighting)
vs
DS-2CD2335FWD-I 4mm (left in auto day/ night)
Wow, the 2335 does make a difference in low light condition. Going to have to order two for front and rear of the house.
Would the DS-7608NI-E2/8P NVR be enough for four cameras or should I go with the upgraded DS-7608NI-I2/8P NVR? I do want H265 support.
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