How to learn and master video technology?
Right here! Comprehensive coverage of video techniques and skills coming soon
Mastering Web/Internet Video Techniques, Skills and Professional Tricks and Problem Solving
video preparation and capture
video storage file formats
streaming media server software
fiber channel san switch storageworks
video transport protocols
video security and digital rights management -- DRM
internet video standards
problems and solutions
video blogging and podcasting
in studio and on the go
spaces and acoustics
spaces and video
audio and video on the go
basic video and audio tools
production and post-production
basic web hosts
web hosts with blogging services
torrents and alternative content delivery
free video and content hosts
podcast specific services
high volume hosting services
in-house and co-location hosting
negotiating large hosting deals
hosted media services
copyrights and other
window media encoder
final cut pro
adobe premiere pro
adobe after effects
making great web video
shooting for the web/internet
shooting events and interviews
how-to video blogs and news
uploading video to the web/internet
getting your video noticed
making it pay/making money with your video
Understanding lighting is basic because the physics of video is the recording of light that is reflecting off the things in the world. It is the same as what your eyes see. In physics or chemistry you would learn that light is energy in the form of photons that strike in your eyes or the film or sensors of the camera, and that is further controlled by the intensities, frequencies, wavelengths, etc. that you and the camera see as objects and colors. In you it is transmitted to your brain and recognized; in modern cameras there are also tiny computers that act like a brain. Enough of THAT! That makes it all sound simple; doesn’t it? Of course you do not need to study physics (lucky you!) to understand video and photography. Much of it is intuitive. You know it from just living and experiencing the world. Since we are using this knowledge to produce the best representation of the real world on film or digital devices, we need to have a plan and not just use trial and error and hope for the best--if you want high quality results/video.
Most lights and light kits on your camera are automatically good at helping you with good lighting whether you have an expensive or a cheap camera. The camera adjusts the ISO/gain when there is no enough light whether from lighting sources or from natural light. This is not the best situation because it will create noise in the image. In digital photographs, “noise” is the commonly-used term to describe visual distortion. It looks similar to grain found in film photographs, but can also look like splotches of discoloration when it’s. It ruins your video image or photograph, and it is worse when you’re shooting in low light.
How much is too much noise?In some quick shots, you may not care about noise in your images like a professional photographer would. So, it also depends on what your shooting and for what purpose (daytime, night, sports action, biology, architectural detail, YouTube sharing or instruction, fashion, etc.). In some, details are essential to the end-user and noise is unacceptable.
The size of the prints or the display/video screen makes a big different in how much noise can be tolerated. Larger video screens and prints will show noise distortion. On the other hand small displays and prints, noise might be hardly noticeable. Noise that might be huge and distracting in one case, might not look so bad on a 4x6-inch print, and might be almost invisible on a computer monitor.
What is acceptable is relative to the end-user and purpose.
More about what causes digital noiseISO: Higher ISO, which you may need when shooting in low light, is the main culprit in causing more noise. The more gain, the more distorted compared to the clean image. without gain. In a photograph, the higher the ISO, the more distortion (noise) shows in the image.
Sensor size: Size matters with sensors. Cameras like cell phones and compact cameras, have small-sized sensors. With these cameras, noise can easily get to unacceptable levels--even at ISO 400. ISO 800 or higher, the picture may lose all sharpness, detail and color trueness, so cameras with larger sensors, such as DSLRs and Mirrorless Interchangeable-Lens Compact cameras, produce lower grain at higher ISOs. Go for larger sensors.
Pixel density:The greater the megapixels (i.e. 14 million pixels/megapixesl) will cause more digital noise than an equal-sized sensor with 10 megapixels (for instance). To crunch those extra 4 million pixels in, the actual pixel size has to be smaller, and thus the camera lets in less light, so the gain is moved up causing distortion. On the other hand, a larger sensor with 14 megapixels will produce less grain than a smaller sensor with a 14 megapixel sensor.
Exposure time: Long exposures introduce static, which can cause digital noise.
Shadows: Gain may not be noticeable in daylight at higher ISOs and the grain might not be so obvious until you observe the areas in the shadow where the distortion will be evident mostly on darker objects or backgrounds. Even when you do image editing with Adobe Photoshop to add more light to an image, the grain in the shadow areas become more pronounced.
Avoid Noise and Noise Reduction SoftwareWith cameras in general, set a low ISO. The higher ISO, the more noise. Set the lowest ISO you can that will still give you good exposure. compact camera may be only at ISO 100. DSLRs may be as low as ISO 400-800. There is noise reduction software that can help or even salvage poor video. Check out some of the sponsor ads on this page and also this VIDEO: About noise and noise reduction software Low ISOs may require the use of a tripod or a flash for low-lighting.
— •The sensor is the key, so get a camera with a larger sensor. Some are small and have interchangeable lenses (MILC).
— •Use your camera’s on-board noise-reduction or else shoot in raw mode, if you want it off
— •Use noise-reduction software on your computer. You can reducing grain selectively.
What if you have too much light?When you shoot with too much light, over expose the highlights and end up with too few details in in parts of the images.
What to do, if your shoot is indoors with good light but the background will over expose?First, use common sense in selecting your angle and location to shoot. When you have no choice you might center the sensor on the area you want to capture the most detail and then rely on your camera to adapt. You can also switch to manual make the setting manually. There is no perfect solution, if you have to have the background in there along with the central focus area.
Another possibility is to use on-camera light and set the camera exposure with the focus on the background, where camera light will fill in the foreground, but it is still not perfect--but acceptable.
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