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Guide Numbers Explained for Manual Flash - John Peltier …
- https://www.jmpeltier.com/guide-numbers-explained-manual-flash-calculator-chart/
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Understanding Guide Numbers | B&H eXplora
- https://www.bhphotovideo.com/explora/photography/tips-and-solutions/understanding-guide-numbers
- Guide numbers are based on a simple mathematical equation that states: the light output of an electronic flash is equal to the distance of the flash unit from the subject multiplied by the lens aperture, or f/stop. As a method of standardizing the process, manufacturers use ISO 100 a nd a flash-to-subject distance of 10' as fixed reference ...
Guide numbers for flash - Photography Tips, Tricks and Techniques
- https://www.photographytips.com/page.cfm/2172
- Divide the flash-to-subject distance into the guide number. That's it. The result is the correct aperture for proper exposure. For instance, working in feet, if the guide number for your ISO setting (or film speed) and your flash unit is 56 and the flash-to-subject distance is ten feet, the correct aperture to use is ƒ/5.6. (56 divided by 10 ...
Understanding Flash's Guide Number (GN) — Daily Photography Tips
- https://www.dailyphotographytips.net/blog/flash-photography/understanding-flash-guide-number-gn
- Basically, to determine the right exposure at any given ISO settings, you would divide the guide number by the distance to get appropriate f-stop. We can write the mathematical formula as, Aperture = GN / Distance. Using D90’s built-in flash as an example, at ISO 100 with its GN of 43 feet in Manual mode, if you wanted to shoot a subject at a ...
Making Sense of Your Flash's Guide Number - DIY …
- https://www.diyphotography.net/making-sense-flashs-guide-number/
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Tutorial: How to use the guide number of your flash - Tangents
- https://neilvn.com/tangents/tutorial-how-to-use-the-guide-number-of-your-flash/
- Keep in mind that the GN is given for a specific zoom setting on the flash-head. Zooming from wide to tele on our flash, changes the Guide Number! The spec for the Nikon SB-910 speedlight is given as: Guide number of 34/111.5 (at ISO 100, m/ft., 35-mm zoom head position, in FX format, standard illumination pattern) for high flash output volume
Flash Guide Number - The Digital SLR Guide
- https://www.digital-slr-guide.com/flash-guide-number.html
- The flash guide number tells you - in a general sense - how powerful the flash is and hence, how much of an area it can illuminate. If your goal is to take intimate portraits in a small room, you don't need flashes with huge guide numbers. If it's your intention to photograph the interior of cathedrals, then you do.
Top 10 WHAT IS GUIDE NUMBER IN FLASH PHOTOGRAPHY …
- https://campinghiking.net/photography/what-is-guide-number-in-flash-photography/
- Guide number – Canon EOS Flash Photography – He & She … Jan 5, 2021 — The maximum distance range of a flash unit is indicated by its guide number. If you use automatic flash metering you may never have to deal (9) … The guide number of a flash is the product of the f/stop of the exposure at a given distance at ISO 100.
Guide number - Canon EOS Flash Photography - He & She …
- https://www.heandshephoto.com/canon-eos-flash-photography/guide-number.html
- f-stop number = GN / distance distance = GN / f-stop number. Canon's guide numbers are measured in metres and are for ISO 100 film. Their Speedlite product names, for example, include the highest guide number of the flash. (which is the guide number for the flash when on maximum zoom in the case of zooming flashes) multiplied by 10 - eg: 550EX.
Understanding Camera Flash Guide Numbers, plus GN …
- https://scantips.com/lights/flashbasics1c.html
- If you determine the correct direct flash exposure is f/8 at 10.0 feet, then that is Guide Number 8 x 10 = GN 80, and it is valid for any other combinations multiplying to 80. This computed Guide Number is applicable for whatever ISO and flash power and …
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