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11 May 2011 How to compensate for existing light you can't control with artificial light that you can control. Tweet. Note: We couldn't be more excited about a new course being offered at PPSOP, Adorama's online photographic learning partner. Taught by two instructors with diametrically opposed views on flash, Bryan F
Manual Flash Calculator (Free Edition) provides a handy utility for accurately determining flash-subject distance. It's quick and easy to use for tricky lighting situations where TTL auto-flash can often struggle. This app is ad-free, and requires no special device permissions. Key Features: • Aperture range F/1.2 to F/22
For any given "correct flash exposure" situation, guide number is simply numerically equal to the aperture number (like the number 8 in f/8) multiplied by the subject distance (like 10 feet). Then for example, the guide number is f/8 x 10 feet = GN 80 (feet units).
5 Oct 2011 At the moment the best I can think of is to use my regular DSLR in a similar position and frame to the fullframe, meter the scene with it and then apply flash in manual power outputs until the exposure is sound on the DSLR and then simply use that flash power output (keeping distance equal at all times) for
Each flash has its guide number, GN, for exposure calculation. The Manual Mode. This is the earliest available flash mode. In this mode, the camera only triggers the flash and allows the flash to send out its maximum discharge. To make flash exposure calculation easier, a sensor is used for measuring flash intensity.
3 Apr 2011 I got a second-hand external flash for my camera. The flash has a guide number of 36. It's a rather old flash unit, so I can't use ETTL mode with it. I have read numerous articles trying to figure out how to calculate what power setting to use, and also what aperture to set my camera at. I usually leave the
3 Oct 2011 The lighting is off-camera flash via a softbox to camera left, held up on a monopod. In this instance we used TTL flash with Radio Poppers. TTL flash makes it easy to get to great (or close to great) flash exposure immediately. But for consistency, manual flash is usually the best option. There are 4 things
In the Automatic (A) mode, the sensor of an external flash takes over the control of flash exposure. In the Manual (M) mode, we return to the basics and do everything about flash exposure ourselves. More precisely, we choose an ISO speed and a lens aperture (resp., a flash-subject distance) and calculate the flash-subject
17 Feb 2011 If you understand exposure and the relationship between shutter speed, ISO, and f-stop. You can follow this. If not, you'll need to learn that. You'll also need to understand how much a "stop" is. SB-24 has an advertised Guide Number of 118 (ft) @ ISO 100. Calculate settings for proper exposure and use that
So the steps are straightforward: Find your composition. Get your ambient exposure correct through your F stop and shutter speed settings. Set your flash to manual mode and set the power to 1/1. Use a colored gel to alter the color of the flash if desired.
     

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