A smart doorbell camera allows y
A smart doorbell camera allows you to see whos on the other side of your dooreven when you arent homeso you can screen for visitors and package deliveries. Im also an avid DIYer who has regularly tinkered with the electrical systems of a modern Jeep, a vintage VW, and a giant Class-A RV. Image quality: Its nearly impossible to judge the image quality of a backup camera based on the published specifications. The static-filled image of the Soled display, for example, made it almost unusable; we swapped cables and connections to rule out other factors, but we were unable to correct the problem on an otherwise great model.
You can mount the Esky display on your dash or windshield, or even upside down at the top of the windshield if you prefer. Camera mounts: You mount a backup camera using one of three basic methods. We dismissed some models because their image noise increased badly at night. Other cameras, such as the Pyle and Rydeen models we tried, required us to bend their mount or frame to position the camera, and were harder to fine-tune. 2022 Wirecutter, Inc., A New York Times Company. In fact, we found that with backup cameras tuned to work in minimal lighting, the reverse lights could wash out images at night. Soled 5-inch high-resolution display: The Soled display had the best contrast of the bunch, with good dynamic range that provided detail in darker and lighter spotsbut only during the day. Because you can typically see the cars bumper on the display, anyone skittish about parallel parking can use a backup camera to confidently back into tight spots without damage, getting as close as a few inches from other cars or objects. Our favorite displays had a higher color saturation that made colors and details pop. Backup cameras help prevent tragic back-over accidents, in which a driver doesnt see a person behind the car. So we similarly chose displays with reliable, positive reviews, ofvarious prices and styles. Whether it's finding great products or discovering helpful advice, we'll help you get it right (the first time). Pyle PLCM44: The display in this kit washed out more easily than on our top pick when capturing objects in bright sun, and in even lighting the picture was often darker than what we saw from the competition. The resolution of the models we tested varied from only 480234 to 800480. (We didnt notice any effect from the switcher on relative video quality.) Guidelines: Every backup camera in our test group shows fixed guidelines in the video image. During our daytime testing, the image was clear as long as the sun wasnt on the horizon behind us and washing out the image. You activate video from the camera by pressing the center button on a separate remote, which you can mount on the dash or steering wheel, or keep anywhere else thats handy. We also didnt like this models center-mount installation method as much as we did the license-plate-frame mounts that came with other cameras. Even though the Rydeen camera showed slightly more detailletting us see the outlines of leaves and grassthat detail wasnt enough to outweigh its paler color palette in terms of the overall image quality. We looked at the image quality of every combination in a variety of lighting conditions, from direct sunlight to nighttime. Installing a wired backup camera means threading, shoving, and hiding the cable and power wires under trunk carpet, inside plastic doorjambs, and behind the dashboarda sometimes puzzling, but not insurmountable, task that thankfully needs to be done only once. Color accuracy matters if you want to identify objects behind you. Even when a bright area captured by our top camera pick had good detail and color on our top display pick, it looked washed out on this display. Though only a split second, such a lag when youre backing up might mean the difference between stopping or not stopping in time to prevent hitting someone (although you shouldnt depend entirely on a backup camera when in reverse, anyway). Here are the things that are most important to consider. Even a true HD model we found, with 720p resolution buried deep in the specifications, incorrectly claimed a higher 1080p resolution in its product pages title. Unlike our other picks, the Look-It doesnt come on automatically when you shift your car into reverseby default, you activate the camera by pressing a button on a remote that you mount to the cars dash or steering wheel (or keep wherever is handy for you)but you can wire it to your vehicles backup light to do that if you want.
At night, bright streetlights didnt wash out the image, and during the day we could still see what was lurking in the shadows. We looked at more-expensive displays with higher resolutions, but the Esky offered the best overall performance in the most scenarios. And some of our favorite displays are inexpensive and have low resolution, but offer better color accuracy, contrast, and viewing angles than displays that seem better based solely on the specs. Now, B or C. B? For another option, the retailer Crutchfield has a tool that shows you compatible, model-specific camerasonce you put in your cars year, make, model, and type of audio system. Plus, YouTube is full of videos that can help you along. If you dont want a separate display on your dash or windshield, you might prefer the Auto-vox T1400 over the Esky display. In future updates to this guide, we plan to look into upgraded systems with better cameras and displays, but we dont think its worthwhile right now for most people to spend the extra money or time investing in more-expensive components. In addition, the cameras field of view is so wide, the effect is like looking through a fish-eye lens thats distorting and curving the images. You power the Esky ES-15 by hardwiring it into the accessory fuse panel behind the dashboard. Chuanganzhuo Backup Camera and Monitor Kit: At less than $30 including a display at the time of our research, this offering was the least expensive backup-camera system we tested. Its simple stand is easy to adjust to get the perfect angle, which is especially important if you share a car with other drivers. However, even with one of these systems, the camera, display, and transmitters still need to be wired for power, so calling the arrangement wireless is a bit of a stretch. The Esky display had the most-accurate color representation of any of the universal models we tried. Our favorite displays had a higher saturation that made colors and details pop. Standard-definition image quality on reasonably affordable hardware just doesnt look that great. If your car has a built-in display, the Accele camera may be able to connect to it either directly or with an adapter module. In our tests, the resolution and color fidelity were noticeably better than those of anything else we tried, but thats where the utility ended. Due to confusing instructions, setting the Look-It up to work with our phone via Bluetooth wasnt as straightforward as it should bean experience echoed by some Amazon reviewers. If youre on a tight budget, the Pyle PLCM38FRV is an adequate backup camera that you can buy for about the price of a multi-topping pizza. But overall, the cameras were too low resolution, and the 4- and 5-inch displays were too small, for the resolution to make much of an impact. At the other extreme, the Garmin camera we tested had such a wide angle, the image had fish-eye distortion that made it harder for us to tell where objects were in the real world. This means that spots that are extra dark or extra bright tend to lose their detail. Though none of the inexpensive displays we tested blew us away, the Esky ES-15 4.3-inch on-dash display had the best overall image quality, and it avoided common dealbreakers. If youre not up for doing it yourselfand if its in your budgetwe recommend spending the roughly $150 it costs to let a pro deal with the hassle. (Many DIYers can do the install in a few hours, depending on the vehicle and the persons experience with working on cars.). Any shop specializing in auto sound and security should also be able to install a backup-camera system, but the prices can vary wildly: When we called around, places quoted amounts ranging from less than $200 to more than $500. The most time-consuming part is running the wires from the camera to the cars taillight and to the display near the dashboard so that theyre hidden from view. Similarly, looking for a complete system we could recommend, we researched almost 40 displays that could work with the cameras, and we tested sevenof the most promising ones. Or C? We wired all the camera feeds into a switcher, and split the switchers output to show simultaneously on all of the displays. The Esky EC170-09 camera, for example, made a field of green grass a few yards away look as brown as the dirt right behind it, an effect that flattened the whole image. This cameras viewing angle was roughly the same as that of our top pickabout 170 degreesallowing us to see a wide area behind us without creating a fish-eye effect. Dash displays are generally less expensive, but with a replacement mirror, you dont have to worry about an extra gadget that could clutter up your dash or be stolen, and you wont obstruct any portion of your view while youre driving. Subscribe now for unlimited access. Wirecutter is the product recommendation service from The New York Times. We tested the cameras on both cloudy and sunny days, when the sun was shining into the lenses, and even at night. Backup-camera systems arent difficult to install, but the process can be time-consuming and a little intimidating if youre not used to working on cars. You can also mount the Esky display to the windshield if that works better for you (and, just as important, if its legal to do so in your area). The Look-It works best for drivers who are willing to keep their phone in a car mount while driving. On a sunny day, a lower dynamic range makes a dark object on a washed-out concrete pad look like a blob. *At the time of publishing, the price was $25. These lines, which extend back from your car to help you judge the vehicles distance from objects shown on the screen, are different from the systems in many new cars, which have dynamic guidelines that shorten and bend to show the vehicles path as you turn the steering wheel. If you decide you dont like them, you can turn them off by cutting a wire loop extending from the camera. Despite its lower resolution, the Esky display looked better than any other on-dash monitor we tried. Similar toall top cameras, the Accele has a wide field of view that allows you to see a broad area behind your car, including several inches out from either corner of the bumper. (KidsAndCars.org, a child-safety advocacy organization that was influential in making that regulation happen, has lots of detailed information on the problem and its solutions.) Thats plenty if youre using your camera just for backing up, since the reverse lights on your car will provide enough illumination for the camera to get a clear image, and our picks dont add a distracting amount of fuzz to the picture. Like other wireless models, the Look-It is also pricier than our top pick, though its easy installation (you can do it yourself in under an hour) means you dont have to pay for professional installation or run wires through your vehicle. I rolled all of that experience into detailed research and side-by-side tests of backup cameras and displays to suss out the best reasonably priced options. If you want to do it yourself: Most backup cameras come with instructions on how to connect the camera to your cars wiring and to the display (although they can be sketchy; here, for example, are the PDFinstructions for our top-pick camera). If youre a DIYer, we show below how we installed the Accele RVCLPMBS, but the process is much the same for any camera. But higher prices didnt always guarantee higher performance: The resolutions and fields of view were similar, and even the acceptable light level didnt vary muchall our cameras claimed to work in near darkness (0.1 to 0.5 lux). The current version of our pick doesnt block registration stickers in the corner of the license plate; our pictures show the older, wider mount, but the camera is the same. Affordable backup cameras dont have the impressive resolutions common in other devices. A DIYer should be able to install a wired system in most vehicles in a few hours. And during the day, this camera had the least-saturated colors of any we tried, making a lush green field look like a dead brown desert. Well keep aneye out for other promising wireless conversion models, and well update this guide if we find any worth recommending. Even though you wont want to save backup camera images for posterity, better color saturation improves other aspects of the image, such as contrast, and makes picking out details easier. The dealbreaker with this model, and all the wireless cameras we tried, was a slight lag between the camera and display. In our tests, the display looked great on cloudy days and at night, but as you might expect with a mirror, it had a lot more glare in bright sun than other displays we tried. For around 50 percent less money, our top pick provided a better picture all around. This truly wireless system uses battery power and your smartphone as its display, but its pricier than our other picks and doesnt turn on automatically. This Auto-vox model replaces your cars existing rearview mirror. Alexander Hrabe, Rear-view cameras buying guide, Crutchfield. It provides a clear image, day and night, with reasonable color accuracy and enough dynamic range and resolution to let you recognize any objects in view. But if you like hands-on projects or want to try working on your car yourself, a backup-camera installation is a good weekend project. Add-on cameras generally cant do the same, because vehicles have different turning radiuses and, unlike in new-car systems, the cameras arent connected to the cars computer and steering system. It installs quickly to the top of any standard US-size license plate without blocking registration tags in the corners, and you can tilt the center-mounted camera without much effort, so dialing in just the right view is easy. If your car doesnt have an in-dash display, a replacement mirror is the most inconspicuous way to add a screen to your car. Like the Look-It Wireless Rear Vision system, the Pearl RearVision, our previous upgrade pick, is a truly wireless backup-camera system that displays its image on your smartphone. More important, in everyday use, wireless systems are prone to minor delays when youre shifting into gear, as well as static from nearby interference and, crucially, fraction-of-a-second lags in transmission that could cause you to miss a child or pet darting behind your car while youre backing up, if youre not also looking around. Theyre not adjustable, though, so youll need to mentally calibrate your driving to the distance each line represents. According to the Insurance Institute for Highway Safety, back-over accidents result in about 300 fatalities and 18,000 injuries annually. A backup camera automatically activates when you shift the car into reverse, letting you see the area directly behind the vehicle on a display. Another issue we had with the Auto-vox model was that the brightness was pumped up to the point that it lowered the overall image quality. Its nearly impossible to judge the image quality of a backup camera based on the published specs. Some cameras include tiny infrared lights that emit light that is invisible to the naked eye but lets the camera see in near-total darkness. As with the cameras we tried, some of the tested displays performed better in certain conditions, and we went with the model that offered the best all-around performance. One of the few specs we did trust was the field-of-view angle, dismissingnearly a dozen models with a field of view narrower than 170 degrees. But its more expensive, and bright sunlight can create a lot of glare on the mirrored surface. Backup cameras are designed to operate in low light, but they typically dont have a wide dynamic range. Novices should set aside most of a day, while people with a little auto or electronics experience may need only a couple of hours, depending on the vehicle. We independently review everything we recommend. The system gets power from a battery in the license plate frame; the company says the battery should last about three years. If you dont have any tools, everything here will cost $70 to $100, but youll be able to use these tools and supplies on future projects. We think most people will be happier with a wired system, despite the additional installation hassle, because such systems are more responsive and reliable. As with the cameras, for the displays, higher prices didnt always mean higher resolution, and we saw little to differentiate $20 displays from $200 models. Wireless models instead transmit the image signal to the display via radio waves. With some displays, we could see a little more detail when we looked more closely. The best displays in our test group have enough contrast to show blacks as blacks and whites as whites. Rearview-mirror displays are all similar in that they simply attach to your cars current rearview-mirror bracket and adjust easily. However, its not as seamless to use, as you must activate the camera using a remote that you mount to your cars dash or steering wheel; video appears on the phones screen within a couple seconds. While some cameras captured that hue, others showed a field that looked completely dead and brown. Although its main draw is its cheap price, this Pyle model provides a usable image and fair color accuracy, while avoiding some common problems such as low-light static, weird color casts, and a blown-out image in bright sunlight. We didnt test this arrangement because of the variety of cars wed need to cover and the assortment of options out there.
But it avoids some of the flaws we saw in other, more-expensive cameras, such as low-light static, weird color casts, and blown-out images in bright sunlight. This feature can be handy when youre operating a car in reverse, and its a valuable safety feature. Weve found it helpful to keep the guidelines turned on, but if you find them distracting, you can turn them off. In our tests the display looked great on cloudy days and at night, and it was clear enough to be useful on brighter days, despite some glare. Heres the basic stuff youll need to install a wired camera. But that was a relatively minor annoyance, and the rest of the installation was easy. This Auto-vox model replaces your cars existing rearview mirror and automatically shows the backup cameras image on the left side when you shift the car into reverse; the image then disappears when you shift the vehicle out of reverse, leaving a conventional rearview mirror. From there, youll have to run the wire over to the pillar alongside your windshield, and down into your dash as with any other display. The video stays on the screen for 30 seconds; you can stop it sooner by pressing the remotes button again. This made it handy for both backing out of a space and for parallel parking, even on a busy street. The image seemed slightly zoomed compared with the image from every other camera, and this model was the only camera to have a significantly narrower field of view than standard. This, combined with a camera thats integrated into a license plate frame, made it one of the easiest models to install. In pretty much every aspect, this camera is just okay, providing a usable image with fair color accuracy. This design makes wireless models easier to install overall, although they still need to draw power through a wire connected in the rear of the vehicle (usually to the reverse light), and you have to make sure that the camera and display have a compatible transmitter and receiver. Virtually every good backup camera can operate in low light down to around 0.5 lux, which is plenty when a cars reverse lights are on. We found that the PLCM38FRV had better color accuracy and saturation than other models we dismissed, which made its image easier to understand at a glance. The Auto-vox display is compatible with most car models, but its pricier than the Esky display. With iPhones, you can choose to see an Apple Map or Google Map display; with Android devices, your only option is Google Maps. In addition to offering convenience, backup cameras represent a huge gain in automotive and pedestrian safety, because they help prevent tragic back-over accidents, in which a driver doesnt see a personoften a childbehind the car. Ive covered electronics for The Wirecutter for nearly two years, and Im no stranger to devising novel ways to test items that are hard for most shoppers to compare at home. Flipping the screen up and down between uses was an extra step that added to the hassle of backing up. In our tests, the differences in contrast and dynamic range were most noticeable at night with our reverse lamps illuminated; the worst displays looked washed out from the lights, while the best ones provided enough detail for us to do more than just distinguish basic shapes. If you want something thats easier to install, the Look-It Wireless Rear Vision System doesnt require any wiring: The battery-powered camera, embedded in a custom license-plate frame, transmits video via Bluetooth to any iOS or Android device (presumably sitting in a smartphone car mount). The display was equally unimpressive, with low resolution, poor color saturation, and inaccurate color reproduction. Once its installed, you may need to bend the bracket a bit to get the cameras aim just right; the design isnt as easy to use or as accurate as the tilting lens on our top pick. Claims of HD quality run rampant on models that are anything but. Our other criteria had a much bigger influence on our assessment of a models overall quality than resolution. At the time we did our research, the cameras we considered ranged in price from less than $30 for cheap models to about $500 for specialty wireless ones. Despite a relatively low resolution of 480272, the Esky had the best color reproduction of any display we tried; others had too little saturation. We pointed our test rig at a field of grass that, in person, was a deep green. Wired versus wireless cameras: Conventional wired backup cameras, such as our top pick, have a video cable that runs through the car to connect to the display. If you choose to use the center-mount bracket, youll need to bend the bracket to aim the camera properly, or you can drill a hole to mount the camera right into your trunk lid. But our picks will give you a usable image with sufficient quality to distinguish the basic details of objects, vehicles, and people behind you at night or during the day.
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キャンプでのご飯の炊き方、普通は兵式飯盒や丸型飯盒を使った「飯盒炊爨」ですが、せ …