1/1.2" 8MP Varifocal

Techie007L said:
@wittaj @CCTVCam @tigerwillow1 Though if we're being honest, with an F1.0 lens on a 1/1.8" 4K sensor, that eufy S3 Pro camera probably performs in the same range as the Ubiquiti G6 Pro! I don't think Ubiquiti is going to be able to fix the G6 Pro via firmware—it is handicapped by its slow varifocal lens. Perhaps they can drop the shutter speed from 1/120 to 1/60 to allow the sensor to reduce gain/grain somewhat—there is no use running the shutter at 1/120 if that means stacking 4 frames together (puts you right back at an effective 1/30 second exposure) to bring the noise back down.
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Slowest shutter I ever run is 6ms = around 1/160th and I prefer 4ms = 1/250th which is what I run most cameras at. I found anything less and you can get blur even though in theory a slower shutter (1/125) should still freeze most motion. Compression probably has a hand somewhere.

Whilst it may make the picture more usable in static quality terms at night, I would not consider your proposed 1/60th usable for motion. Gain also has a big hand in PQ and that is very evident in the video example above. With a reduction in gain a further reduction in shutter speed would probably be needed to compensate further although the image would clean up non motion wise.

G6 Pro is an example of why larger sensors are needed. f1.5 gives a better dof with a larger sensor. However, the aperture change more than halves the available light (it's approx 1 1/3rd stops down vs f1.0). That's likely the issue. However, theoretically if a camera can run 1/250th, it should produce approximately the same result at 1/125th with 1 stop less light.

Assuming my math is correct, with an f1.5 , it's 1 1/3rd stops of light from the 4kt's f1.0 to f1.5, so you'd probably be looking at an equivalent shutter of @ 1/90 th or 11 ms.

Given for many who want a brighter picture, 6ms or 1/160th on a 4kt maybe more realistic. (Even then in very low light it's dark). You'd probably be looking at 14ms or 1/70th on the G6 for the equivalent brightness of 6ms on a f1.0, which then explains the blur. Obviosuly the brighter you go by slowing shutter, the more of an issue slow shutter becomes.

Needless to say, anything other than zoom wide open, on this sensor / lens combination is likely a big problem as shutters would have to slow considerably further to compensate as the aperture narrows further.

This all assumes my math is correct, but my understanding is 1 stop down = 1/2 the available light and thus a need to slow the shutter also by 1 stop = halving the shutter speed.

Whilst I've often said the 4kt needed a smaller aperture to achieve greater dof, it's quite obvious doing the math (if it's correct) that a larger sensor would also be needed but then you have to re-eaxmine the aperture to sensor size relationship. It maybe no coincindence that some of the action cameras on 1 inch sensors are running f`1.9 apertures. The porblem is the larger you go, the narrower the aperure needed to retain dof, so the juggling continues. Bit beyond my field of knowledge though.
 
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CCTVCam said:
Slowest shutter I ever run is 6ms = around 1/160th and I prefer 4ms = 1/250th which is what I run most cameras at. I found anything less and you can get blur even though in theory a slower shutter (1/125) should still freeze most motion. Compression probably has a hand somewhere.

Whilst it may make the picture more usable in static quality terms at night, I would not consider your proposed 1/60th usable for motion. Gain also has a big hand in PQ and that is very evident in the video example above. With a reduction in gain a further reduction in shutter speed would probably be needed to compensate further although the image would clean up non motion wise.

G6 Pro is an example of why larger sensors are needed. f1.5 gives a better dof with a larger sensor. However, the aperture change more than halves the available light (it's approx 1 1/3rd stops down vs f1.0). That's likely the issue. However, theoretically if a camera can run 1/250th, it should produce approximately the same result at 1/125th with 1 stop less light.

Assuming my math is correct, with an f1.5 , it's 1 1/3rd stops of light from the 4kt's f1.0 to f1.5, so you'd probably be looking at an equivalent shutter of @ 1/90 th or 11 ms.

Given for many who want a brighter picture, 6ms or 1/160th on a 4kt maybe more realistic. (Even then in very low light it's dark). You'd probably be looking at 14ms or 1/70th on the G6 for the equivalent brightness of 6ms on a f1.0, which then explains the blur. Obviosuly the brighter you go by slowing shutter, the more of an issue slow shutter becomes.

Needless to say, anything other than zoom wide open, on this sensor / lens combination is likely a big problem as shutters would have to slow considerably further to compensate as the aperture narrows further.

This all assumes my math is correct, but my understanding is 1 stop down = 1/2 the available light and thus a need to slow the shutter also by 1 stop = halving the shutter speed.

Whilst I've often said the 4kt needed a smaller aperture to achieve greater dof, it's quite obvious doing the math (if it's correct) that a larger sensor would also be needed but then you have to re-eaxmine the aperture to sensor size relationship. It maybe no coincindence that some of the action cameras on 1 inch sensors are running f`1.9 apertures. The porblem is the larger you go, the narrower the aperure needed to retain dof, so the juggling continues. Bit beyond my field of knowledge though.
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Send your analysis to Ubiquiti - they can use an expert like you onboard their development team :p
 
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flynreelow said:
I think member @modplan is a pro at it.

i still need to test it out.
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Not sure I would say "pro" lol. But I absolutely love it. Compared to Blue iris and regular Frigate in docker Fregata is a beast. Happy to answer questions anyone has.

I have all ubiquiti networking gear too, I'm thinking about getting one of their doorbells, just since no one else makes a good PoE doorbell, but the rest of their cams are crap and way too locked down settings-wise for me to even consider them. I don't need settings my grandma can use, I need a good picture at night for security, that's what is most important and why I'm spending money on cams.

I also hate how Ubiquiti took away RTSP streams direct from the cameras, they used to have it, but they removed it. Now it has to proxy through their protect software (which adds delay) just to get an RTSP stream for an external service like blue iris or fregata. Infuriating, they're just trying to lock you into their ecosystem so you can't get out. How long until they remove RTSP completely?
 
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modplan said:
Not sure I would say "pro" lol. But I absolutely love it. Compared to Blue iris and regular Frigate in docker Fregata is a beast. Happy to answer questions anyone has.

I have all ubiquiti networking gear too, I'm thinking about getting one of their doorbells, just since no one else makes a good PoE doorbell, but the rest of their cams are crap and way too locked down settings-wise for me to even consider them. I don't need settings my grandma can use, I need a good picture at night for security, that's what is most important and why I'm spending money on cams.

I also hate how Ubiquiti took away RTSP streams direct from the cameras, they used to have it, but they removed it. Now it has to proxy through their protect software (which adds delay) just to get an RTSP stream for an external service like blue iris or fregata. Infuriating, they're just trying to lock you into their ecosystem so you can't get out. How long until they remove RTSP completely?
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The Reolink POE doorbell is fantastic.

i mean, no 1 inch screen, but dude, its a doorbell.
 
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I need to take a look at the reolink doorbells again. last I looked they had a white version and a black version, I needed the aspect ratio of the white one for my scene, but needed black to better match dark siding. I would have bought instantly if they had both aspect ratios in both colors. maybe a newer version solved this.
 
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modplan said:
I need to take a look at the reolink doorbells again. last I looked they had a white version and a black version, I needed the aspect ratio of the white one for my scene, but needed black to better match dark siding. I would have bought instantly if they had both aspect ratios in both colors. maybe a newer version solved this.
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yea, sounds like you need the white one, with some paint or plastidip
 
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Arjun said:
Send your analysis to Ubiquiti - they can use an expert like you onboard their development team :p
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Haha. I'm hardly an expert and I'm quite sure they have their own experts who've calculated it all precisely and made decisions as to where compromise, if any, needs to be made.

My point is not to rubbish anyone or anything, but simply to point out that compromises has to be made with existing sensor / aperture combinations and the real way forward for the industry is always going to be bigger unless some miracle coating comes along, although even then you can't really beat square inches when it comes to capturing things falling from the sky. Bigger bucket = more rain. Bigger sensor = more photons. The VB770 with a 35mm(?) A7iii?)) sensor clearly shows this. Unfortunately cost is also a factor as you go larger albeit I do think the VB770 was probably priced on the basis unit numbers would be quite low, and a quality 35mm lens comes in the thousands, although kit lens are much lower and potentially a totally fixed cctv lens could be manufactured for a lower price still.
 
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