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A poll about Auto ISO action with hot shoe TTL flash
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<blockquote data-quote="voxmagna" data-source="post: 562913" data-attributes="member: 38477"><p>Rather than post a new thread, I'd like to ask a question here because I'm a little confused. I'm using a Speedlight Mk910 on the D750 hotshoe set for TTL mode. For daytime shots I've got autoISO set with my max limit and use aperture priority. I watch what ISO and shutter speed are doing as I set aperture. My problem comes with the hotshoe flash. I thought the camera would know it had a flash on in the shoe and keep my ISO to around 400? Worst case I try a test shot in semi darkness, the camera seem to think it is a daylight shot, winds the ISO to over 1000 and keeps it there when the flash fires. I check the EXIF and it has used ISO 1000. At the short distances I was testing in semi darkness, focus was held and the flash had plenty of light to get the shot at ISO 200.</p><p></p><p>Am I doing something wrong, or should I just turn off autoISO? That would be a shame because I've got used to using it now and I want to switch back and forth between outdoor and indoor shots with flash.</p><p></p><p>I've repeated my tests since posting and even tried manually forcing ISO low, but with autoISO enabled the D750 has its own mind. I think I'm resigned to turning off autoISO so I don't get flash pictures with noise. In the ideal world I'd like the D750 to recognize the shoe flash is powered on then auto adjust its ISO over a limited range say from ISO100 to ISO400. Any other ideas?</p></blockquote><p></p>
[QUOTE="voxmagna, post: 562913, member: 38477"] Rather than post a new thread, I'd like to ask a question here because I'm a little confused. I'm using a Speedlight Mk910 on the D750 hotshoe set for TTL mode. For daytime shots I've got autoISO set with my max limit and use aperture priority. I watch what ISO and shutter speed are doing as I set aperture. My problem comes with the hotshoe flash. I thought the camera would know it had a flash on in the shoe and keep my ISO to around 400? Worst case I try a test shot in semi darkness, the camera seem to think it is a daylight shot, winds the ISO to over 1000 and keeps it there when the flash fires. I check the EXIF and it has used ISO 1000. At the short distances I was testing in semi darkness, focus was held and the flash had plenty of light to get the shot at ISO 200. Am I doing something wrong, or should I just turn off autoISO? That would be a shame because I've got used to using it now and I want to switch back and forth between outdoor and indoor shots with flash. I've repeated my tests since posting and even tried manually forcing ISO low, but with autoISO enabled the D750 has its own mind. I think I'm resigned to turning off autoISO so I don't get flash pictures with noise. In the ideal world I'd like the D750 to recognize the shoe flash is powered on then auto adjust its ISO over a limited range say from ISO100 to ISO400. Any other ideas? [/QUOTE]
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A poll about Auto ISO action with hot shoe TTL flash
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