Canon R7 Movie Time lapse setting

[EVaughan]

When using the R7 time lapse movie mode, if you use a shutter speed of two seconds or longer with two second interval chosen. Will the camera skip frames because it's trying to take an image every two seconds, but the shutter could be open exposing one image for two seconds or longer. Or will if just use 2 second interval between each image no matter how long of shutter speed you have chosen? 

[paulhummerman]

My issue was exactly the issue that EVaughan raised initially - how does the "exposure time" interact with the "interval time" when shooting time-lapses? You are saying I think that in order not to lose information one must set the interval to be longer than the "exposure time" not just longer than the "shutter time" - although there is apparently no way to know how much longer. I mostly shoot Milky Way time-lapses and use a 8 sec shutter time and a 10 sec interval, and that seems to work fine. I guess that the extra 2 seconds is enough to write the data to disk and perform the "standard" High Iso NR. When I use an interval equal to the shutter time the time-lapses still work but oddly enough the actual interval between shots seems to be prolonged or unpredictable.

[BrianDavies]

"....Then each shot will be four second long exposure, then wait 2 seconds and take the next shot without skipping frames?"  

If you want the above behaviour, you need to set the shutter speed to 4 seconds and the interval to 6 seconds.

[paulhummerman]

yes, that's what I discovered by trial and error: set the interval to the nominal shutter speed plus 2 secs. I don't yet know whether 2 secs works for all possible shutter speeds but is seems to work for 4 and 8 sec shutter speeds .

[BrianDavies]

It is fairly simple. The interval between shots MUST be longer than the shutter speed. The shutter speed is the exposure time (shutter speed = how long the shutter is open and exposing the sensor to light).

So you have 2 choices,
1. to set an interval for the time between one shot commences and the next shot commences or;
2. the time between one shot ends and the next shot commences

The solution to 1. is set an interval = desired interval, but interval 'must' be longer than shutter speed. Obviously, a new exposure cannot begin when another exposure is still in progress.

The solution to 2. is set an interval = desired interval + shutter speed.

[Joona]

I have also problem with timelapse and my R7. Using shooting mode M or C1 M (Manual based Custom 1) I can’t star record time lapse. Everything works fine but hitting record button does nothing when it should show start recording option on screen. Test shot still works fine. Time lapse is working fine with other shooting modes.

Any ideas is there some wrong option or what? 🤷🏼‍♂️

[Waddizzle]

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@Joona wrote:

I have also problem with timelapse and my R7. Using shooting mode M or C1 M (Manual based Custom 1) I can’t star record time lapse. Everything works fine but hitting record button does nothing when it should show start recording option on screen. Test shot still works fine. Time lapse is working fine with other shooting modes.

Any ideas is there some wrong option or what? 🤷🏼‍♂️

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Please start a new thread for your issue, so that people can see where your question(s) begin.  It becomes very confusing to discuss different issues with multiple members on the same thread.  We lose track of who has what problem.