Junsun S590 car camera test

Because of the display, however, we cannot stick it in front of the rear-view mirror, although we would not have the opportunity to do so due to its size. I don't really understand why it is at such a large angle, because I can barely read the screen data when it is mounted on the windshield of my car, which is slightly more inclined than usual. I was able to compensate for this by using the app, but it's not the same as if the back of the camera was simply designed to be normal. Its lens is the size of a policeman's bowler hat, so it's brutal, which is probably one of the keys to the wide-angle lens, and it can also be adjusted quite flexibly. If we want, we can turn it to one side, for example, to record the way the insane person in the off-roader driving erratically from the right drives into us.

By the way, the use of materials is not bad, I didn't encounter any burrs, but time and UV radiation will decide how long the Junsun S590 lasts. Since it does not have a built-in battery, in theory it should be the less perishable, capacitive solution - although this is not specifically mentioned in the description - but finding out the resistance can take years. However, the assembly is exemplary, so I think the company did what it could in this area.

Junsun S590 test

Testing DVR cameras is not at all as easy a task as you might think, even though it is one in a few pieces we are already over. Cabling itself can be a task, especially when it comes to two devices that communicate with each other. On the one hand, the chicken intestines should be hidden somewhere - for example under the cover - but of course you can hang them in any number of ways, but you can't do this backwards, so it's better to stuff them under the upholstery or the cover.

Returning to the cooperation of the cameras, here it is worth deviating a little towards the hardware, since it is very important what lives under the plastic housing. The two sensors are a combination of a Sony IMX 323 and an Omnivision 4689, but there is only one image processing chip, which resides in the main camera of the Junsun S590. This also means that the resolution varies depending on whether one or two cameras are used at the same time.

From the above, it is easy to see that if both units are working, then on the one hand, the device is nowhere close to its maximum resolution, and on the other hand, 4K is quite fake, if only because the maximum resolution of the OV 4689 sensor, which I don't particularly like, is 4 Megapixels. Let's calculate together: 4K 3840*2160=8.294.000 pixels, well, this will never fit into 4 Megapixels, whereas 1440p is 2160*1440=3.110.400, but this one does. So, in addition to 30 frames, it is worth using 1440p, or even more 1080p 60 FPS, since we want to record fast-moving objects with it.

The user interface of the Junsun S590 is otherwise very nice, there is a dedicated button with which we can switch between cameras and create a picture-in-picture view. The other switches are quite self-explanatory, the first one takes you to the menu, the second one records, the third one allows you to mute the microphone while driving, if something is heard in the car, which is better if it doesn't end up on the video, it's ingenious. I would not go into detail about the menu system for reasons of length, I would only highlight the essence, that is, what functions the camera has.

Almost all DVR cameras are capable of:

• circular fixation
• G-sensor: detects the shock and locks the card
• HDR: i.e. high dynamic range, which comes in handy for night shots
• motion detection: recording starts when the vehicle moves
• start recording on ignition: the recording starts immediately, we don't have to turn it on manually
• WiFi connection

This is more or less the basic set, and the additional functions are based on it, which the cheaper models usually do not have:

• GPS route tracking: displays our speed and, theoretically, also the GPS coordinates that can be extracted with special software (but I couldn't find the software)
• ADAS (Advanced Driving Alarm Systems): this means lane departure monitoring and distance keeping / only works with 1080p resolution/
• 24-hour parking monitor: in principle, it monitors whether the car is hit by a stronger impact even when stationary

In my opinion, ADAS is "bullshit", obviously something that costs 50-100.000 HUF per piece on the extra list of a vehicle cannot work. Of course, it displays yellow pictograms on the display, but it also does this when I "leave the lane" to park. I have to add, it is not easy to notice on the 2-inch display, especially since it has a 120-degree slope, but there must be someone who has inherited the genes of the meadow eagle. Of course, for the real test I would have had to simulate the hypnosis, then the test would have been authentic, but this could only succeed if my fear of death could once be suppressed by my compulsion to sleep.

I recommend setting the following to everyone: date, number plate, turning off button beeps, writing GPS data to the screen, G-sensor to medium sensitivity, HDR at night and for better efficiency, we also format the card. It's also worth looking for the sound and screen switches off among the physical controls, which give a kind of Knight Rider feeling to use while driving. We also tried to simulate the parking monitor function, we jerked my car from the front and the back, but nothing surprising because it didn't have the ignition on, so I don't know how this is supposed to work (although I have an idea).

As for the image quality, I would basically divide it into two parts: the front camera alone, and the additional camera together, since the resolution also depends on it. Added to this is the lighting conditions - i.e. day or night - in which we drive. I admit, I didn't expect much from the 4 Megapixel OV 4689, so I was surprised by the result. The videos are quite decent, the data density is 20 Mbit/s, the colors are good, the license plates and plates are legible, and even for the HDR night recording, I say that it is okay, although we cannot see the license plates of the vehicles coming from the side due to the stretching of the image to read, and switching to 1080p 60 FPS doesn't help either, in fact. One minute of video is roughly 150 Mbytes, so we will need 9 GB of space per hour, with a decent-sized 128 Gigabyte card - that's the maximum it handles - we can record quite long journeys.

The application is called Roadcam, I think it's quite a simple "creation", it was probably not developed for the Junsun S590 camera, but a general program. This also means that we cannot switch on special functions - such as ADAS - from it, but I can still see the point, since it is much more comfortable to press the app on the steep display. Another issue is that this is not a concretely stable application, so don't be surprised if it just stops sometimes.