Curtis N wrote in post #5605011
This is typically the kind of situation that causes "ghosting". You'll get a sharp rendering of the subject (from the flash) but also some blurry edges in one direction or another (depending on direction of subject movement/camera movement and 1st or 2nd curtain sync).
This is typically the kind of situation that causes "ghosting". You'll get a sharp rendering of the subject (from the flash) but also some blurry edges in one direction or another (depending on direction of subject movement/camera movement and 1st or 2nd curtain sync).
PacAce wrote in post #5605119
Robert, with the flash contributing on 40% of the light, just over half the lighting will be from the ambient light so, yes, there will be motion blur visible if the subject moves fast enough to be blurred at a shutter speed of 1/125. The only time subject blur would not really be visible is if the ambient lighting is over 2 stop less than the flash or, in other words, the flash contributes greater than 80% of the light (for mid-toned subjects and higher if light-toned).
Robert, with the flash contributing on 40% of the light, just over half the lighting will be from the ambient light so, yes, there will be motion blur visible if the subject moves fast enough to be blurred at a shutter speed of 1/125. The only time subject blur would not really be visible is if the ambient lighting is over 2 stop less than the flash or, in other words, the flash contributes greater than 80% of the light (for mid-toned subjects and higher if light-toned).
Thank you Curtis and Leo.
