In Part 1 of this two-part series on powering LED lighting, we looked at switching power supply basics, dimmers and system efficiency. In this concluding article, we examine Power Factors, Energy Efficiency Standards and LED fixture selection.
Ribbon microphones are as old as recording itself. Now a new generation of ribbons has erased old problems and limitations and excels in modern digital recording.
Engineers and lighting technicians know that LED lighting requires considerably less power than other forms of traditional lighting such as Incandescent, Mercury Vapor, Halogen, or in many cases, Fluorescent lighting. However, just because LEDs require less power does not mean one can power them ten-at-a-time from a single power strip or battery. Problems beyond tripping a circuit breaker may exist without the user ever realizing the problem.
Flash cards for video production are an essential part of the production workflow. But how many videographers understand these vital storage components and care for them properly? This is a guide to treating video flash memory properly.
Batteries are the lifeblood of cameras and other remote gear. To achieve their best performance and a long life, like humans, they need exercise.
Most of us don’t think about cases for equipment until something valuable is broken. Then, faced with what can be a significant financial loss, we think about protecting gear — both while traveling and using it on location. Surprisingly, choosing the right equipment cases can be a complex challenge.
The C300 has undergone a complete revamp in the newest version, the EOS C300 Mark II. At first sight the Mark II looks just like the original C300, but looks can be deceiving. It’s really a completely new camera. When Canon launched the Cinema EOS range, the first model was the C300. It recorded 50 Mb/s 8-bit HD MPEG-2 to CF cards. It had an new form factor than meant is was ideal for handheld, run-and-gun operation. The 300 was followed by the higher performance C500, but an external recorder was needed to gain full advantage of high bit rate 2K and 4K recording, with the CF card still limiting on-board recording. The line-up was joined with the entry-level C100, which records AVCHD to SD cards.
Shotgun microphones have long been the staples of live recording. In the 1970s and 80s, virtually all professional shotguns used for location sound were “true” condensers costing over $1,000. Now, a new breed of electret condenser shotguns have appeared. Many wonder, what are the differences and how much does it matter?
