1/29/2024 0 Comments Big aperture lensBinoculars are the ideal "small telescope" with their wide field, low cost, simple use, total portability, and their respectable performance about halfway between that of the naked eye and a 6- to 10-inch scope used at 50 to 100 power.īut some binoculars are better than others. We've said it before: if you're interested in astronomy you ought to keep a pair of binoculars handy, no matter what other instrument you may have. The product is the visibility factor, according to Roy L. Just multiply the power (the first of the two numbers in a designation like '8 x 50') by the aperture (the second number, given in millimeters). Although cameras and smartphones may have the same aperture values, results are still not comparable, especially when it comes to depth of field.The astronomical performance of binoculars can be rated at a glance. The unstoppable progress of smartphone photography includes impressively wide aperture values, which makes for professional-looking photos with the pleasing bokeh effect (shallow depth of field and blurred background) and less blur where you don't want it. This is generally great for portraits, but when focusing on landscapes, you may consider a narrower aperture value for a broader sharpness area. Considering the same relationship, a wider aperture implies that shutter speed can be faster, as more light enters the lens in a shorter amount of time.Īperture is also connected to the depth of field: the wider the aperture, the shallower is the depth of field, which translates into more focus on a subject and background blur. While the former designates the image sensor's sensitivity, the latter refers to how long the camera sensor is exposed to the light that passes through a camera's "pupil." A combination of high shutter speed and narrow aperture could result in underexposed images, whereas lower shutter speed, coupled with a wide aperture, may produce overexposed and blurred shots. The concept of aperture is closely linked to other specs such as ISO and shutter speed. The reason behind this seemingly illogical notion is that the value represents the lens' focal length divided by its opening size – so a smaller f-stop indicates a broader opening. ![]() Aperture is measured in f-stops, and as an example, an f/1.4 aperture can let more light in than an f/2.8 aperture. The most obvious advantage of a wider aperture is the ability to take photos in darker environments what is not so simple is the fact that a lower number means a wider aperture. To put it simply, a wider aperture translates into more light entering the lens and reaching the image sensor – think of it like your pupils, which get bigger to allow more light to come in. Grasping this concept can be quite helpful even for those who are satisfied with low-key photography, as it allows you to have more agency over your snaps. W Weather-sealed (splashproof) Wi-Fi 5 (802.11ac) connectivity Wi-Fi 6 (802.11ax) connectivity Wide aperture (main camera) Wireless chargingĪperture is one of those specs that a lot of us know to be relevant without understanding the reason. U Ultra power-saving mode Upload speed USB Type-C USB version T Texture rate Thermal Design Power (TDP) Timelapse video S Screen size Semiconductor size Sensor size Shading units Silent alarm Sleep tracking Slow-motion video recording Sound pressure level Stereo speakers Subwoofer R Radio RAM RAM speed RAW image format support Ray tracing Refresh rate Removable battery Resolution P Phase-detection autofocus (PDAF) for photos Physical QWERTY keyboard Pixel density Pixel rate Pixel size (main camera) O Optical image stabilization (OIS) Optical zoom M Manual exposure Manual focus Manual ISO Manual white balance Maximum light sensitivity Megapixels (main camera) Memory bandwidth I Impedance Ingress Protection (IP) rating Internal storage Iris scanner ![]() H HDR mode Heart rate monitor Highest frequency ![]() G Geekbench result GPS GPU clock speed Gyroscope 0-9 3.5mm audio jack 360° panorama mode 3D facial recognition 5G supportĪ Accelerometer Active noise cancellation (ANC) AF tracking AirPlay ANT+ī Barometer Battery life (CIPA) Battery power Bluetooth version Body SAR (US) Brightness (typical) BSI sensor Burst modeĬ CMOS sensor Compass Continuous autofocus for movies Contrast ratio CPU speed CPU threadsĭ Damage-resistant glass DLNA certification Download speed Dual-lens (or multi-lens) main camera Dual-tone LED flash Dust- and water-resistance DxOMark Mobile scoreį Fast charging Fingerprint scanner Floating-point performance
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