traffic growth on our roads can not guarantee even the most law-abiding motorist safe operation of the vehicle.Even with the most careful driving and strict observance of traffic rules risk becoming a party to a traffic accident is quite high.At least because, quite independent from us.
Most of these proceedings literally "exhausting" and force, and nerves.But it is depressing drivers most.The main difficulty is that it is not always possible to prove their case.That is not adequate witnesses, the inspector (a long walk anecdotes about corruption in many of them) raises a priori on someone's side.
Perhaps this is the root of the growing popularity of such devices for the car as DVRs.This impartial witness is able to give a true picture of what happened and to help out in difficult times, in any conflict situation, often on-site, thereby exhausting the incident at the start.The main thing - to choose the optimal variant of its DVR in a vast assortment offered by the market.
It is for this reason does not make sense to do a comparative analysis of the DVR, depending on their value.But on that first of all it is necessary to pay attention so you do not give up - the subject of a detailed investigation.And we will talk specifically about "amateur" models as devices with multiple cameras, advanced features are quite expensive, and ordinary car owner is unlikely to be interesting and necessary.
main criteria for assessing the DVR
Angle
best option - within 130º .With a smaller angle is not necessary to acquire, since such a camera can not record everything that happened on the side of the vehicle at the time of the accident, and it dramatically reduces the chances of a fair trial.
It can be assumed that the larger the numerical value, the better, but this is not entirely true.The fact that an increase in capacity on the review of reduced quality "pictures" and, therefore, may be omitted (or poorly displayed) any minute details that are essential in the circumstances.Such is the inverse relationship.Well, about a smaller angle and say no - the oncoming lane, he will grab only partially, which is also disadvantageous in terms of obtaining reliable and complete information.
Resolution
This parameter directly affects the clarity (quality) of the image.Of course, if we're going to shoot an amateur film and send it to the competition, the requirements for resolution should be increased, otherwise the "Oscar" just do not get it.But there are a few things that limit choice.Firstly, the more "pixels", the higher the price of the device (and its growth is very important).Second, to better record and memory card should be appropriate.
Some products «made in China» to improve shooting technique used electronic interpolation.Judging by the commercials, the best pictures will not give any other model."Lead" is not worth it, especially if you have not the slightest clue as to what the "heart of the matter."By itself, the principle of effective, but its implementation in DVRs proper image quality does not provide.
shooting speed
you need to focus on himself, on the manner of driving.The higher the recording speed, the lower the probability that the device will not have time to fix something.But the increase in this indicator implies growth and cost (since the card and need to "bulk").Models with very high speed (and hence cost) are more suitable for those who believe that the brakes invented pants.For the normal motorist sufficient if video recorder designed to record 20 - 30 frames / sec .
For example, HD video recorder will not be able to write at a speed of more than 30 K / s, even if the passport it is designated as 60. For a faster recording need SD-card with high speed recording.Here on such trifles, and we often "lovimsya", but in practice we overpay for something that exists only in theory.
«Cyclical»
In fact, this feature reflects the capabilities of the device for continuous video recording time. 1 file covers the period from 2 to 30 minutes .This is set by the user.After such electronic "sheets" and collected a lot of device memory is full, it is done cleaning, and video are written in pure "notebook pages."It is necessary to focus on the range, duration of travel.As a rule, a half-hour cyclical quite satisfied the majority of motorists.
number of cameras
opinion that the more, the better the registrar, many misleading.For professional photography it's really important.But to fix all the stages of "auto" movement need only one.Keep in mind that all the cameras "loaded" on one electronic circuit.Even if there are only 2, the recording quality for the second decline by about half.
Although only 1 camera greatly restricts the possibilities.For example, the space will not be viewed from behind, for example during parking.But at least - a record of everything that happens in front of the car, it is quite provides.
«Audio" mode
probably write "for posterity" all sounds during the movement no sense.But the "capture" a conversation with the traffic police officer or too violent participant accident (just in case) - a safety net is not superfluous.Therefore, this feature is really useful and necessary.
Mount
«Suction»
This option is more "long-playing" as the method of fixing the registrar allows it to shoot often, and on-site if necessary.It's good in those cases when the car is left parked for a long time or stored in the open air.He took off the device, and the problem is solved theft device.The disadvantage is that this fixation is not enough reliable.For example, when driving on rough terrain recorder can easily "fall off".Break - is unlikely, it just hangs on the cable.But it will have to strengthen again, and at the same time to spend time.
«Velcro»
This fixation more secure, but if the device is permanently removed / put, the tape does not last for long.The best option for those who mainly moves, for example, on the usual route "garage - cottage - the garage."
If the camera will vibrate in motion, we can not dream of a high-quality shooting.Therefore, examining the mount, make sure that all of its connections are secure, and various "backlash" no.
As for any electronic device, about the DVRs can be a long talk.But if a person versed in modern technology, know what a USB port and not confuse it with GPS, and then he do not need to explain - all the information it finds in the device data sheet.The main parameters of registrars we have noted, and this is quite enough to make the right choices and be sure that in any situation a "witness" will not fail.