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2. Flash (photography) - Wikipedia

   en.wikipedia.org/wiki/Flash_(photography)

   Balancing the flash power and ambient lighting or using off-camera flash can help overcome these issues. Using an umbrella or softbox (the flash will have to be off-camera for this) makes softer shadows. A typical problem with cameras using built-in flash units is the low intensity of the flash; the level of light produced will often not ...

3. Canon EOS flash system - Wikipedia

   en.wikipedia.org/wiki/Canon_EOS_flash_system

   Like TTL (and like the actual flash metering, but not the pre-flash, of A-TTL), the sensor is internal to the camera and takes its exposure via the lens so any filters added to the lens will also affect the E-TTL readings giving more accurate exposure information to the camera. The pre-flash occurs immediately before the main flash (except when ...

4. Guide number - Wikipedia

   en.wikipedia.org/wiki/Guide_number

   Guide number distances are always measured from the flash device to the subject; if the flash device is detached from the camera, the position of the camera is irrelevant. Furthermore, unless a flash device has an automatic zoom feature that follows the setting of a camera's zoom lens, guide numbers do not vary with the focal length of lenses.

5. Flash comparison - Wikipedia

   en.wikipedia.org/wiki/Flash_comparison

   Built in wide flash adapter and bounce card. Nikon SB-80DX AF Speedlight 14m (at 18mm) / 50m (at 85mm) at ISO100 Screwlock PC 14 - 105mm 1/1 - 1/128 TTL yes yes 3sec yes Built in wide flash adapter and bounce card. Nikon SB-800 AF Speedlight [42] 38 (at 35mm) / 56m (at 105mm) at ISO100 Screwlock PC 24-105mm 1/1-1/128 i-TTL/CLS yes yes 6sec yes [43]

6. Nikon Speedlight - Wikipedia

   en.wikipedia.org/wiki/Nikon_Speedlight

   The Nikon SB-500 is a lightweight and very compact shoe-mount flash unit with coverage for a 24 mm lens on an FX camera or a 16 mm lens on DX camera and combined with 100 lux LED for video light, powered by only two AA-size batteries. SB-500 is a very capable flash with a variable angle 'bounce' head (up to 90°) and rotates 180° for soft ...

7. Cactus (camera equipment brand) - Wikipedia

   en.wikipedia.org/wiki/Cactus_(camera_equipment...

   Cactus V6 Wireless Flash Transceiver and Cactus RF60 Wireless Flash were selected by Popular Photography as 2014 Best Camera Deals of the Year. [4] Cactus V6 Wireless Flash Transceiver is the winner of Japan's Digital Camera Grand Prix (DGP) Gold Award 2015. [5]