HDW5442TM-AS-LED-S2 compared to the new HDW5442TM-ASE-S3 model

tantrim

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So after looking at the specs of these 2 cameras, I noticed that the newer S3 version has an aperture size of F1.6 where the S2 has F1.0 size.

This has the downside of less light sensitivity on the newer model while in color mode. However they do list a lower sensitivity in black and white mode.

Why would Dahua change the aperture size on the new model? Has anyone been able to test the S3 version in a side by side comparison with the S2 yet?

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wittaj

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Why yes people have and say the new model is better, right @bigredfish

 

looktall

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The slightly narrower aperture of the S3 changes the focal length of the camera allowing a slightly longer identify distance over the S2.
 

bigredfish

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I went with the bullet VF

It’s certainly better than my old first Gen 5442s and I think better than my fixed lens 5442s which has not typically been the case.

I think I have an older 3.6mm bullet I can do a side by side with

Min. Illumination0.0006 lux@F1.2 (Color, 30 IRE)
0.0003 lux@F1.2 (B/W, 30 IRE)
0 lux (Illuminator on)
 

tantrim

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I went with the bullet VF
I think better than my fixed lens 5442s which has not typically been the case.
It seems that the varifocal has a bigger (when number goes down, that means bigger right?) aperture than the fixed lens S3 cameras. From what I know (not much) that is the opposite of the predecessors.

I would be interested in any comparisons you could share.

I'm currently looking to get around 8 cameras for my property. I plan to use the 5442 variants in the darker areas and debating between 5442's (possibly the varifocal S3 now) and the 4k 1/1.2" cameras for the well lit areas.
 

tantrim

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Also HDW5442T-ZE-S3
I'm curious how this camera performs as well. In sure it's cheaper but it has a F1.8 aperture compared to a F1.2 of the 5442H-ZHE
 

duplo

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Do you even read the spec sheets?
You are comparing a full color camera to a infared camera.
Maybe try to compare apples to apples ?

All infared 5442 fixed cameras versions has the same optic, F1.6
 

steve1225

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It seems that the varifocal has a bigger (when number goes down, that means bigger right?) aperture than the fixed lens S3 cameras. From what I know (not much) that is the opposite of the predecessors.
5442H is special version of bullet where 5442 is inside bigger chassis and optics with F/1.2 from Ultra line (7442H)...
Normal bullet is 5442E - where chassis is smaller, designed for Pro 5xxx line and optics with F/1.8 for varifocal (F/1.6 for fixed lens).
Both variants are with IR lighting.. Difference between F/1.2 and F/1.8 is almost 2x more light per pixel.

Models with aperture F/1.0 and white light were always named as 5449 (last digit is sensor/optics/lighting spec).
Yes I known - there was 2-3 models with F/1.0 named as 5442 in the past.
Dahua for some time didn't quite follow their camera model coding rules.
But it looks like they want to fix this mess.

At this moment 5449 line is based on old S2 WizMind series (Volt chipset)..
Dahua didn't presented a new WizMind-S 5449 line for now...

The new S3 WizMind-S is based on a new chipset which gives more power / functions. There is much better minimal Illumination spec for new F/1.8 5442-S3 WizMind-S (0.0007/0.0004lux) cameras comparing to old F/1.8 5442E-S2 (0.003/0.0003lux) ones . Question is they used a new better image sensor or there is only difference in image processing?

F/1.0 creates a problem with shallow depth in fixed lens cameras (bokeh effect). A new F/1.6 or F/1.8 WizMind-S S3 have better minimal illumination spec that old one (even with F/1.0) - so they didn't needed to use F/1.0 with a new model. And fixed problems with shallow depth.
 
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bigredfish

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It seems that the varifocal has a bigger (when number goes down, that means bigger right?) aperture than the fixed lens S3 cameras. From what I know (not much) that is the opposite of the predecessors.
Correct in this case (5442H). That is what drove me to try it. And I believe @steve1225 is spot on.

Remember even though it’s F1.2 as I showed, in any VF, FStop will become bigger (less light) as you zoom. With PTZs they typically show the FStop range in the spec for instance.
 
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