A new small flash was announced with the Canon T1i, the Speedlight 270EX. We're betting it's going to be quite popular thanks to its easy pocketability, light weight (5 ounces), and reasonable range. Though it's powered by only two AA batteries, the 270EX has the same range as the older Speedlite 220EX that requires four AAs (charging time is increased, however, taking 4.5 seconds instead of 3). It also has a manual zoom from 28mm wide angle coverage to 50mm coverage, and a guide number of 22 meters / 72 feet wide-angle, and 27 meters / 89 feet telephoto, both at ISO 100. Even better, its head can tilt up and lock in three positions: 60, 75, and 90 degrees.
Unfortunately, it doesn't tilt down for macro shots, and it doesn't go back beyond 90 degrees for more face-filling bounce shots. It also doesn't work to control other flashes, nor can it be controlled. However, the camera's menu can control the flash; indeed, it's the only way you can control the 270EX. We only spent the shortest time with the 270EX, but were pleased with its coverage and light weight. If you want to bounce flash off the ceiling when shooting in vertical mode, you'll still require at least the 430EX, but for basic snapshots, the Speedlite 270EX looks like a handy accessory.
منبع:
کد:
http://www.imaging-resource.com/PRODS/T1I/T1IA.HTM