Testing A810

kamkar

kamkar

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This no longer brand new system do pack a punch, though i must of course also say that it is my first time with the 4K IMX678 sensor, so i am probably a bit easy impressed here.
The system like other 70mai dashcams have a not super impressive rear camera ( not bad ) but on the BIG + side you can pair it with the new accessory RC14 rear camera, which is the 1080p resolution starvis 2 sensor.
I am not privy to the price of this starvis 2 rear camera, so hard to say if it is a worth while investment to make.

The footage seem very nice, but i am not able to compare it to something similar in another brand as i simply do not have that, but i think it look damn fine.

I have not yet had the footage under the " microscope " so things like double exposures or missing frames might be hiding in there, but whipping up the below video i did not notice anything, but that could be luck CUZ if / when cameras do have these things its not like it is every 10 frames, so you have to " 1 frame " back and forth in footage to really tell.

Also this driving footage are not the best, i prefer to park 90 degree to a road with traffic on it, that way going over footage missing or double frames are more easy to see.





The first memory card in the A810 is the 256Gb PNY PRO Elite
 
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Great example video.
Licence plate capture is surprising clear and the white line is sharp at 80kph.
If it has HDR was it on?
 
Video looks good. Is it H264 or H265?

Too bad it's a battery cam versus capacitor (at least according the the product specs).
 
Yes HDR are on here. H.265

Just compiled the footage of the same from the rear camera perspective, that do not look good, with 0 captured plates.
Which i know can also be done with a 1080p camera, so i dont really get that, but i think even these conditions it should have been possible.

I will pull the exactly same footage from the A510 system which have the 1080p starvis 2 rear camera installed, but i will not be able to work that before i come home from the range on Sunday.

The video are upscaled to 4K too, same level of zoom also used as on the front camera footage.

 
The rear camera are possible bitrate starved, the 3 minute video are just 190 MB and just 8 Mbit
The front camera are 740 MB for 3 minutes and 31 Mbit

I think others go way past that, though not sure if we talk H.265 or H.264, i personally only use H.265 if i can, and i am looking forward to gaining AV1 support in editing software so i can use the hardware encoder on my GFX card.

Yes there is a H.264 option too


ALSO the footage are just 25 fps
 
kamkar said:
The rear camera are possible bitrate starved, the 3 minute video are just 190 MB and just 8 Mbit
The front camera are 840 MB for 3 minutes and 31 Mbit

I think others go way past that, though not sure if we talk H.265 or H.264, i personally only use H.265 if i can, and i am looking forward to gaining AV1 support in editing software so i can use the hardware encoder on my GFX card.

Yes there is a H.264 option too
Click to expand...
I find it Interesting that HDR is enabled on the front camera and the number plates are so sharp.

The rear camera image is pretty average and seems to have double frame capture and also a little over sharpened (see shadows under cars following)

I think the cloud cover is also helping the exposure levels giving it ideal lighting conditions.
 
It is a bit funny how the A810 ans A 510 are.
In the A 810 there is a HDR setting you can en / disable
In the A510 there is no such thing but under resolutions you can choose some that have HDR on.

To me that is a bit confusing having 2 different paradigmes

Now of course most will probably not run 2 models side by side and notice such things, but someone upgrading from one model to a new might be a bit confused of a new way to do a mundane thing.
 
kamkar said:
It is a bit funny how the A810 ans A 510 are.
In the A 810 there is a HDR setting you can en / disable
In the A510 there is no such thing but under resolutions you can choose some that have HDR on.

To me that is a bit confusing having 2 different paradigmes

Now of course most will probably not run 2 models side by side and notice such things, but someone upgrading from one model to a new might be a bit confused of a new way to do a mundane thing.
Click to expand...
Yeah I saw that the A510 has HDR on only and a 60fps resolution with no HDR: https://dashcamtalk.com/forum/threa...r-2-7k-front-and-1080p-rear.51398/post-621697


Interesting choices, I didn't test 1080p 60fps because I thought the decreased resolution would not be worth it. Sure they have some reasoning to go along with it ....
 
compiled a little video from yesterday, driving with HDR ON / Off and CPL On / Off

Having seen other test other brand and following the HDR in daytime issue, well i did not fully understand but i think i might slowly be seeing it now.


 
A 810 capture. Kid run into street.

 
Haven't we all done that? Lucky for them that it was a clear day and no parked cars to block the drivers view.

Have you noticed that the A810 seems to stutter or drop frames during playback? It seems like it is doing it in that video.
 
I have noticed that.
But not sure if it was just me, lately having some issues with playback software and codecs.

Yeah cars parked along the curb are both a blessing and a bad thing, it is nice if / when the parked cars protect bicycle path and sidewalk, but it is a problem if someone want to cross the road there.
I was taught to look for feet under cars / stopped bus and so on
But Danish kids are taught well CUZ soon they will be part of the traffic, and so have to be on the ball, but of course we allso well know that dropping the ball is something both children and adults can / will do.

A guy high on,,,,,,, well everything it seem, last night at high speed overtaking cars, head on collision with oncoming car = 3 dead old people ( around 70 YO all of them ) and 2 in hospital with severe trauma.
Guy running from there hiding in field. i hope cop dog that found him too a bite.
 
Tried to capture some plates in low light today.

That was literally impossible, at highway speeds, at high town speeds 70 / 60 kmh and default town speed ( 50 kmh ) and even slower speeds.

Capturing the plate on the car driving in front of you, no problem, also no problem capturing the plate of the car pulling up behind you at a intersection,,,, razor sharp images.
But any speed, even a very modest speed and parked cars at the curb, and no capture.
It look as if the HDR is there alright, but just not doing much it seem.



NO problem, seeing where the bus is going or its route number . πŸ™‚
 
LateralNW said:
Have you noticed that the A810 seems to stutter or drop frames during playback? It seems like it is doing it in that video.
Click to expand...
I can see 25fps in Kamkar's videos above πŸ€”
What fps does it claim to have?
 
yep 25fps cameras, it is a bit weird, not sure if its strict adherence to PAL regional thing or what, I mainly use 30 - 60 - 120 - 240 fos for video, to hell with PAL
 
kamkar said:
yep 25fps cameras, it is a bit weird, not sure if its strict adherence to PAL regional thing or what, I mainly use 30 - 60 - 120 - 240 fos for video, to hell with PAL
Click to expand...
The Youtube video is at 30fps, when viewed on my computer, so that is why it is not playing smoothly, 25fps doesn't fit into 30fps very accurately.

Is the original video from the camera a 25fps video file or 30fps video file? I'm wondering where it gets converted to 30fps before I see it?
 
25 fps original
 
kamkar said:
25 fps original
Click to expand...
16% space saved on the memory card then... or better image quality at the same bitrate.
Do you find 25fps adequate?
 
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