Reply to thread

Message

<blockquote data-quote="Horoscope Fish" data-source="post: 733259" data-attributes="member: 13090">Technically speaking they don't. What you read could have been a couple different things but most likely what they were saying is with a long enough exposure, say, 1 minute in duration, something like a person casually walking through the frame would not be in the frame long enough to be visible in the final shot. Now if a person were to verrry slowly walk through your frame during that one-minute exposure, maybe stopping and freezing in place for a few seconds while they did so, you could get some &quot;ghosting&quot; of the person in the final shot which could be used for creative effect.You might have come across another technique, called Median Stacking, that's commonly used to remove crowds of people from places like landmarks and what not, but that requires multiple exposures in lieu of a ND filter; though I guess you could use them in conjunction with one another.</blockquote>

[QUOTE="Horoscope Fish, post: 733259, member: 13090"] Technically speaking they don't. What you read could have been a couple different things but most likely what they were saying is with a long enough exposure, say, 1 minute in duration, something like a person casually walking through the frame would not be in the frame [I]long enough[/I] to be visible in the final shot. Now if a person were to verrry slowly walk through your frame during that one-minute exposure, maybe stopping and freezing in place for a few seconds while they did so, you could get some "ghosting" of the person in the final shot which could be used for creative effect. You might have come across another technique, called Median Stacking, that's commonly used to remove crowds of people from places like landmarks and what not, but that requires multiple exposures in lieu of a ND filter; though I guess you could use them in conjunction with one another. [/QUOTE]

Verification