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Repeat shots does't seem to work on first fire in a SMS sequence.

I am trying to set up an HDR Pano using the Stage-R and the MX3 controller (1.10).

To achieve the HDR, I've set the bracketing on the D800 to 3 and have configured "repeat shots" to 2.

The angle of rotation is set to 30 deg, The interval is 15 secs (giving a 3 second reserve), exposure delay is 2000ms. Exposure time on the camera is 1 sec. The camera can flush its buffer quickly enough. Mode is SMS.

This works correctly for the second and subsequent set of 3 fires. The Stage-R does turn 30 deg and the camera is fired 3 times.

My problem is that the Stage-R rotates after the very first fire and doesn't trigger the camera for the remaining two shots in the exposure bracketing sequence.

Having set the MX3 to "on", I see

  • wait of 15 secs
  • one pulse sent to camera (the led on the RJ socket blinks just once and the camera takes a single exposure
  • stage-r rotates (no blinking on the RJ socket and no firing of the camera)
  • after 15 secs from first move, 3 pulses sent to camera (as desired) and so on until max shots is reached.

Lead-in and ramp-in are set to 0.

What might I be doing wrong?

Jeremy Brookfield

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Do not use repeat shots for HDR.. Please read section 6.6 of the manual or use this video guide to help setup HDR: https://vimeo.com/16575979

In the next firmware revision to reduce confusion we will be re-naming the 'repeat shots' function to 'MUP' and only allowing it to be 'on' or 'off'. The repeat shots function was only intended for use with Mirror UP functions on camera. It was not intended for HDR..

To walk you through the process here's how it's done..

  1. Set your AEB on the camera and set the drive mode to 'continuous high'
  2. Use the MX3 Camera>Exposure Time to trigger the entire AEB sequence. This setting will vary depending on the AEB set on your camera. So for example if your 3 AEB exposures are 1/4", 1/2", 1" the total exposure time would be around 1.75 seconds (1750 ms). Usually it can be set to less because the last exposure is triggered before the end of the sum of the exposures. A little experimentation usually does the trick.
  3. Set the Camera>Exposure Delay to accommodate for the buffer time on the camera, again do some testing but the optimal is getting it so the motor move happens after the last exposure while the camera is buffering.

That's about it, everything else remains as normal.

Jay Burlage
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Thanks Jay for your response, I had read that section of the manual but was hoping that setting the number of repeat shots would give more control than trying to set the exposure time when my exposures might be very short.

In practice, on my D800E, I need to set an exposure time of 3900ms to handle the 1/4",1/2",1" sequence and this value also works for 1/500th,1/125,1/60.

In each case the exposure delay was set to 0. If I set the exposure time to 1750ms and the delay to 1250ms, the stage R moves during the last exposure.

Jeremy Brookfield 0 votes
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Then it simply sounds like you need to increase the Exposure Delay to accommodate for the last exposure..

Certainly a longer exposure time will also accommodate a shorter series of exposures, but you'll want to be careful that you don't trigger a second AEB sequence..

What is the actual time it takes to complete the exposure sequence? Is it over 3 seconds? That would explain why the system is moving during the last exposure..

Jay Burlage 0 votes
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