Instructions for the Promaster 7500EDF Digitalby Whitney Houston
Promaster's 7500EDF digital electronic flash was released in 2005. Its features include a recycling time of 0.3 to 10 seconds (depending on battery strength), flash duration capabilities of 1/30,000 to 1/1,000 of a second, a swiveling head with a bounce angle range of -7 to 90 degrees, a swivel angle range of 0 to 180 degrees, and a motorized power zoom to focal lengths of 24, 28, 35, 50, 70, 80/85, and 105 millimeters. The flash weighs 17.2 ounces and comes with a push-on plastic diffuser.
Insert four AA batteries into the left side of the flash (if you're holding it from behind). Open the battery cover by pushing it with your thumbs, and slip in the batteries in compliance with the polar indicators. Put the cover back on. Flip the On/Off switch (the switch on the back of the flash to the bottom left) to turn the flash on.
Manually use your flash by first slipping the flash onto the camera shoe (Nikon, Pentax, Sony, or Canon). Set the camera shooting mode to Manual and the flash's mode to 'M' (push the second button from the bottom right until 'M' appears on the display). Push the M/Freq button (located just under the display, 3rd button from the left) to select the desired flash output level (1/1, ½, ¼, 1/8, 1/16, 1/32, or 1/64 M). Set the camera shutter speed to X-sync or slower, set the lens aperture, and then take the picture.
Push the mode switch and select TTL Auto Flash to make the camera and flash act automatically in conjunction with each other. A Canon, Sony and Pentax will fire a pre-flash before the actual real flash, so that the camera can evaluate the subject. A Nikon will expel a bunch of little flashes for the same reason, making ambient light less of a factor in the picture.
Select Multiple Flash Operation with the mode selection button to fire multiple flashes in succession to capture subject movement in a single picture. After selecting Multi, select Rept and choose the number of flash bursts. Press the M/Freq button to specify the frequency of the bursts, and adjust the camera's shutter speed and aperture settings.
Use Model Flash mode to help determine what the image will look like due to the position of the flash. Slide the Sub-Reflector switch to the "flash" position. Switch the flash mode to Model and press the M/Freq button to set the frequency of the flash. The H-F setting (High Frequency) is ideal for close-up pictures and features low-power bursts. The L-F setting (Low Frequency) is good for large subjects and features strong flash bursts.
- Lightning image by Mohamed Hayat from Fotolia.com