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Nikon DSLR Cameras
D500
D500 USED WITH FLASH AND AUTO-ISO : problems ???
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<blockquote data-quote="RocketCowboy" data-source="post: 634718" data-attributes="member: 25095"><p>First off, howdy and welcome to Nikonites!!!</p><p></p><p>How is your SB700 set up? Are you trying to shoot flash in TTL, or using manual controls for flash output?</p><p></p><p>The problem I can see here, and really it doesn't matter whether the flash is TTL or manual, is that there's another light source being introduced to the exposure which can't be metered by the camera body. You might have a dark scene that without flash should be shot at ISO 3200 (for instance), but how would the camera determine whether that is still the correct ISO if your subject is a portrait 5 feet in front of the camera and the flash is set to 1/1 power? If the flash is set to TTL, the TTL calculation isn't done until the pre-flash when the shutter is tripped, so the camera has a similar problem where the ISO needs to be determined before the shutter is tripped, so that TTL can adjust the flash as necessary. </p><p></p><p>My shooting style aligns with the recommendation that Horoscope Fish mentioned. When flash comes into play, I tend to lock down all my other exposure settings (ISO, shutter, aperture) for the environment, and then I dial in flash power to taste.</p></blockquote><p></p>
[QUOTE="RocketCowboy, post: 634718, member: 25095"] First off, howdy and welcome to Nikonites!!! How is your SB700 set up? Are you trying to shoot flash in TTL, or using manual controls for flash output? The problem I can see here, and really it doesn't matter whether the flash is TTL or manual, is that there's another light source being introduced to the exposure which can't be metered by the camera body. You might have a dark scene that without flash should be shot at ISO 3200 (for instance), but how would the camera determine whether that is still the correct ISO if your subject is a portrait 5 feet in front of the camera and the flash is set to 1/1 power? If the flash is set to TTL, the TTL calculation isn't done until the pre-flash when the shutter is tripped, so the camera has a similar problem where the ISO needs to be determined before the shutter is tripped, so that TTL can adjust the flash as necessary. My shooting style aligns with the recommendation that Horoscope Fish mentioned. When flash comes into play, I tend to lock down all my other exposure settings (ISO, shutter, aperture) for the environment, and then I dial in flash power to taste. [/QUOTE]
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Nikon DSLR Cameras
D500
D500 USED WITH FLASH AND AUTO-ISO : problems ???
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