Camera | Online Filmmaking Blog

OLIVE, Film That Used The Smartphone As A Video Camera

In filmmaking, we had known the camera is commonly the main equipment for capturing images. A professional camera with a large size has been already common even seen for usage. And then the technology said different, this time the video camera function had shifted to the use DSLR Cameras that have good quality. In [...]

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Video Cases and Camera Bags

You should know that cameras are sensitive and expensive electronic equipments. It should be secured when not in use. Some cases or bags are even designed for specific weathers to help protect all your equipments from the harshness of nature. For example, if you like taking photos of islands or beaches; you’ll need a video case or a camera bag that’s both water resistant and dust resistant. It shouldn’t allow for any foreign objects to enter the bag and contaminate the insides of your expensive equipments.

Sand can scratch the lenses of your camera, and water can short circuit the sensitive and expensive electronic equipments integrated in your camera. This is why it’s important for you to get a camera bag or video case to effectively protect your camera.

Since cameras and video equipments are quite expensive electronic equipments, it’s a prime target for stealers. This is why you should get a camera bag that doesn’t scream expensive photography and videography equipments. It should be simple enough to fool anybody looking at the bag that it doesn’t contain expensive equipments. This is why some camera bag and video case manufacturers designed their camera bag and video case to look like a conventional backpack.

If you want maximum protection, you had better gotten a camera bag with built-in foam padding. With this feature, you’ll never worry much about dropping your bag with your camera and video equipments inside. It will safely cushion the equipments in case it hits a hard surface, or if you accidentally dropped it. Continue reading Video Cases and Camera Bags

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How New Cameras Are Tested

The EIA Video Systems Committee set five measurement parameters that would be evaluated under low light conditions.
1. Luminance level
2. Black level
3. Luminance signal-to-noise ratio
4. Chroma level
5. Resolution
Tests were developed to measure these parameters and minimum limits were set on the measurement results. To be judged acceptable, the camcorder would have to meet the minimum limits on all five parameters.

The Actual Tests
Each camera is aimed at a test chart with its zoom lens adjusted between wide angle and half-way zoomed in. This achieves respectable light transmission. The chart is illuminated with 3100 degree Kelvin (3100Â° K) video lights adjusted to spread the light evenly over the chart. A digital light meter is used to accurately determine the illumination of the test chart. The camcorder circuitry is exposed, if necessary, so that the video signal can be measured directly using a video waveform monitor, video noise meter, and high resolution video monitor.
The camcorder is switched to its full AUTOMATIC mode for exposure and color balance, and its GAIN UP control is set to the “normal” position. (The manufacturer is permitted to perform these tests in the GAIN UP position as long as it indicates in its specifications that this position was used during the test). The camera is manually focused and set to 1/60 second shutter speed. The electronic image stabilization circuits are switched off, the digital zoom is switched off, the on-screen display (OSD) feature is switched off, the RF adapter (TV channel 3/4) bypassed, and of course, any built-in accessory lights are deactivated.

Continue reading How New Cameras Are Tested

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