HDR Bracketing

September 28, 2010
HDR Bracketing

HDR Bracketing

Due to limitations of the infrared interfacing the quickest shutter speed will be 0.3 seconds.

  • Set the camera to “BULB” mode for this application to control the camera.
  • First select Bracket number, then select first value and test its exposure by pressing the corresponding button. Once your happy with the exposure then select the last exposure value then press its corresponding button to test on the camera.
  • “Brackets” is the number of shots you would like to take between the first and last exposure.
  • “Interval” is the time in seconds between each bracket shot.
  • Once all the HDR values are to your liking, press the “Start” button to begin the HDR bracketing sequence.
  • HDR Bracketing repeater – create time lapse HDR with ‘Repeat’ and ‘Delay’. Once HDR settings are to your liking you can then specify how many times to repeat this HDR sequence and also the time in seconds to delay between sequences.
HDR Bracketing Demonstration

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16 Responses to HDR Bracketing

  1. Scott on October 6, 2010 at 11:54 am

    Hello: I talked to before about doing HDR. Hopefully you still had my email and feedback on the HDR, but in short, something close to the Promote control (Promote Systems) would be good to follow. One upgrade they havent done is to have both shutter and aperture priority as an option when shooting multiple exposures. Also, have mirror lock-up and mid exposure when 0 is not necessarily the starting point, maybe +1 or -1 depending on the lighting of the photo.

  2. Carsten on January 18, 2011 at 10:09 pm

    Hi, this is really cool! What would be awesome would be the ability to combine timelapse and hdr bracketing for hdr timelapse ..

  3. Kelvin on March 14, 2011 at 3:41 pm

    I would like it if you allowed for a longer delay option in the HDR mode between shots to allow for using strobe. 5-6 seconds for recycling. Thanks!

    • Alberto on March 14, 2011 at 4:03 pm

      Hi Kevin, I’ve already built this in the next version. Will try and release it as soon as I can, just doing some beta testing before I release it.

    • Tyler on March 20, 2011 at 4:55 pm

      You just need a better flash. My flash can keep up with my cameras in high burst mode for several frames before it has to recycle. Even then, the recycle is a fraction of a second. At 6.5 frames per second I can get the flash to keep up with 4 or 5 of those frames.

      • Alberto on March 21, 2011 at 2:13 pm

        Hi Tyler, thanks for the info, the minimum shot rate for this IR controller is dependant on how fast the camera can process the IR signal. Even when using a Canon 5D mark II with a fairly quick burst the IR cannot keep up and will miss fire and skip shots. Ideally it would be great to have it directly connected however there are patents on the socket design for canons remote plug and there may also be some risk of short circuiting the camera.

  4. William Liu on March 20, 2011 at 11:43 am

    If infrared is not fast enough for faster shutter speeds, is there a way to send the signal directly from the 3.5mm audio jack to the camera’s remote port through a cable?

    Keep up the good work!

    • Alberto on March 20, 2011 at 7:27 pm

      Hi William, I’m afraid there is too much risk involved in going though the camera remote port. And canon has patent on the socket design for their remote port as do many other camera manufacturers, therefore it very difficult to go though with this method.

  5. William Liu on March 27, 2011 at 4:46 pm

    Hi There, may I request a UI mode where we put in one shutter speed and then have the “dark” and “light” be in terms of f stops? Also could we get the “light” to go longer than 9.9sec?

    • Alberto on March 28, 2011 at 1:06 am

      Hi William, I’m afraid using IR to interface with the camera only allows me to control shutter speed and not the F stop. In the next version of the app you will get a lengthier HDR range.

  6. Josh Levinson on March 29, 2011 at 12:23 pm

    Hi there. Will the fastest shutter speed of 0.3 sec for HDR improve at some point in the foreseeable future? For me, unfortunately, this a deal killer, since most of my shots are taken at shutter speeds faster than 1/3 sec. Perhaps I’m misunderstanding the limitations…? Thanks!

    • Alberto on March 29, 2011 at 4:54 pm

      HI Josh, in the next release I was going to put the fastest shutter speed to .4 because at faster speeds lower end cameras cant deal with processing the IR and shutter speed at this speed. Based on your request I’ll put it to .3, Triggering accuracy can be a bit finicky at this speed even with my 5D mkII, It still works be may misfire.

  7. austin@austinluker.com on April 10, 2011 at 8:50 am

    Hello, I would like to see actual shutter speeds in the HDR bracketing section. The “dark” “light” buttons do not make much sense even to someone who teaches photography :@) hopefully we can have faster shutter speeds for daytime HDR’s. I don’t see how you could even do a day time HDR with the fastest shutter speed being 1/4 of a second? Maybe I’m missing something?

  8. Jon on April 13, 2011 at 2:54 pm

    I was thinking the same thing. Most HDR photos I take use from 1/250 to 1/1000 for some of the shots. In order to be able to use a 1/3 second shutter speed during the daytime you would need to set the f-stop to such a small aperture that the shots will not come out too well.

    Could it possibly mean .3 second BETWEEN the shots?

    • Alberto on April 14, 2011 at 12:41 am

      In the next version I’ve tried to keep the values more like the shutter speed values on a camera. I’m afraid 0.3 is the limitations of a IR remote interface. I would have liked to get it to a quicker shutter rate but the time it takes the camera to process the IR and trigger is a minimum of .3 secs which I’ve tested on my 5D mark II. The quicker you go the more unreliable the triggering becomes. The only other way to get around this is to plug it in directly and at the moment that isn’t really going to work with this app. I think canon holds a patent on the socket design for the higher-end EOS cameras so manufacturing this is a bit difficult. Producing a DIY could be dangerous for people who don’t really know what there doing. There is the risk of short circuiting either device.
      I do agree with having a 1/3 shutter is a bit too slow for HDR, I suppose having a ND filter might help?

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