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<blockquote data-quote="WayneF" data-source="post: 555744" data-attributes="member: 12496">So I think you are saying you are using the Interval Timer, and NOT Time Lapse?They are similar, but Time Lapse makes a movie, and Interval Timer does not, we have to do that manually later.&nbsp; Movies do have limits that still pictures do not, but nothing that I can identify as a problem, other than the stated 8 hour limit.If you did use the menu named Time Lapse, I think you will see the 8 hour limit that you report.I don't know why the Interval Timer would stop.&nbsp;&nbsp; I have used Interval Timer with 30 second intervals for about 50 hours on a D800.&nbsp; No issues.You said an interval of 1 minute 30 seconds, and mentioned a shutter of 15 seconds, so I am changing subjects, and this is NOT an issue here, but it could be some day.Note that the cameras actual shutter speed for 15 seconds is 16 seconds, and the actual shutter for 30 seconds is 32 seconds.&nbsp; The marked numbers are just rounded approximations for humans, but the camera has to use 1,2,4,8,16,32 intervals (to honor each stop being an exact 2x stop of exposure). This normally does not matter to humans.So a common issue that users setting shutter speed 30 seconds, and interval 31 seconds thinking they've got it (typically shooting stars), will have serious problems (balky action, missed shots).&nbsp; That interval must be 33 seconds, because the shutter is actually 32.</blockquote>

[QUOTE="WayneF, post: 555744, member: 12496"] So I think you are saying you are using the Interval Timer, and NOT Time Lapse? They are similar, but Time Lapse makes a movie, and Interval Timer does not, we have to do that manually later. Movies do have limits that still pictures do not, but nothing that I can identify as a problem, other than the stated 8 hour limit. If you did use the menu named Time Lapse, I think you will see the 8 hour limit that you report. I don't know why the Interval Timer would stop. I have used Interval Timer with 30 second intervals for about 50 hours on a D800. No issues. You said an interval of 1 minute 30 seconds, and mentioned a shutter of 15 seconds, so I am changing subjects, and this is NOT an issue here, but it could be some day. Note that the cameras actual shutter speed for 15 seconds is 16 seconds, and the actual shutter for 30 seconds is 32 seconds. The marked numbers are just rounded approximations for humans, but the camera has to use 1,2,4,8,16,32 intervals (to honor each stop being an exact 2x stop of exposure). This normally does not matter to humans. So a common issue that users setting shutter speed 30 seconds, and interval 31 seconds thinking they've got it (typically shooting stars), will have serious problems (balky action, missed shots). [B]That[/B] interval must be 33 seconds, because the shutter is actually 32. [/QUOTE]

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