Follow me: http://www.twitter.com/tweetsauce SOURCES BELOW: Hanu Dixit music: https://www.youtube.com/user/HanuDixit0003 Vsauce video about the ...
Constant Rate Factor (CRF) is a x264's single-pass encoding method.
Constant quality encoding usually keeps up a constant quality by compressing every frame of the same type the same amount. In technical speak, that's maintaining a constant quantization parameter (QP). Constant Rate Factor, on the other hand, compresses different frames by different amounts. It does this by taking motion into account.
The eye perceives more detail in still objects than when they're in motion. Because of this, a video compressor can apply more compression (drop more detail) when things are moving, and apply less compression (retain more detail) when things are still. Subjectively, the video will seem to have higher quality.
Constant Quantization Parameter (CQP) mostly don't produce...
Fortunately the bird, although quick and flighty, didn't seem at all nervous about having a human close by. The 40-150mm mZuiko Pro lens, with a film equivalent focal length of 90-300, was ideal for the job. The essence of good bird photography is to get the eye and feather detail in sharp focus. Using wide matrix auto focus is not going to do the job. Precise focus on the eye can only be achieved with single spot auto focus. Bird photos that impress are almost always taken from either the same level as the subject or a little above. The aim is to get eye.
The micro four-thirds camera format debuted in 2008 and was immediately a hit. While the smaller micro four-thirds sensor means the image quality suffers a bit, most photographers were willing to forgo the extra megapixels for a lightweight camera they could take anywhere. Even as the micro four thirds standard has matured and these cameras’ capabilities have blossomed, that travel-friendly portability has remained one of the main selling points. Tired Loses the lightweight, highly-portable advantage that makes micro four thirds so appealing. Image quality gains aren't as large as the jump in sensor resolution would lead one to assume.
via Broadcasting and Cable]
Blackmagic Micro Studio Camera 4K Shoots Virtual Reality Experience at New York Fashion Week You get the highest image quality ... The “Diamond EYE” rig features a custom central mounting point, and all the Micro Studio Camera 4Ks were connected to it and calibrated for the final stitched frame. Each of the nine Micro Studio Camera 4Ks ... [...]
Something to keep your eyes on: affordable glasses with lenses that need no prescription The goal: produce inexpensive eyeglasses with adjustable lenses that require no ... based on the viability of their business models and quality of customer and market research. First and second place will be announced a week later at the Viterbi Awards. [...]
Salt Lake City Eye Doctors Discuss the Costs of Cataract Surgery Although these options are not covered by insurance, the trade-off of experiencing more visual freedom and greater quality of life is often worth the added expense to many patients. The doctors say ophthalmology financing options available at The Eye ... [...]
via What Digital Camera]
Best Wideangle Zoom Lenses Zooms designed for cropped-sensor bodies will typically start at around 10-12mm, while those designed for full-frame cameras ... help to keep image quality high. Revised lens coatings are said to be responsible for slightly better optical performance ... [...]
via The Ridgefield Press]
Vision: What’s normal? The most common treatment is simply to use reading glasses. Eyes suddenly burn, itch or sting and water excessively. Both of these can be a sign of dry eye. Dry eye is very common ... significantly improve vision and quality of life. Central vision seems ... [...]
Half a dozen workers are gathered around a gritty table in the middle of a factory floor, smoothing away imperfections on what will be trendy acetate eyeglass frames.They are buffing their way through one of the 70 steps it takes to make a pair of State Optical frames, a two-week process done largely by hand. Once the frames are filed smooth, they will move on to another worker at the north suburban Vernon Hills factory.Luxury eyewear manufacturing gradually moved abroad as labor...
Besides looking the part, the latest golf-specific technology helps improve your vision in varying light, so you get performance benefits too. Our guide to the best golf sunglasses 2018.Best Golf Sunglasses 2018With such great choice on the market, we’ve narrowed down some of the best golf sunglasses for you to try.BUY: Oakley Flak 2.0 SunglassesOne of Oakley’s most popular models, the Flak 2.0 features High Definition Optics that provides superior optical clarity and razor-sharp vision at...
Best Glass for Multiple SystemsYour DSLR likely came with an 18-55mm or 18-135mm zoom lens. Supplementing or upgrading that lens to a higher quality zoom or a fixed-focal-length lens that captures more light can really improve the quality of shots that your camera is capable of. There are a few different approaches you can take when choosing a lens for your camera, and some limitations to consider.We've highlighted some of the best zoom and prime lenses that we've reviewed here, with the...