Digital – low-end camera with electronic shutter and fast exposure

I need a camera module with which I can trigger a picture electronically and support exposures in the range of 10 microseconds or less (1 / 100,000). I understand that this would be a dark exposure under normal lighting, but I have the ability to accurately measure bright stroboscopes in connection with the shot. The purpose is to image fast moving objects (max. 90 m / s) in order to obtain position and speed data.

I am an engineer with experience in electronics and software, but I have no knowledge of hardware for digital image processing. I have to find a camera module that meets my requirements and at the same time is inexpensive enough to be integrated into a personal project. I've searched everything I can think of and can't find anything that isn't suitable for a laboratory device and costs thousands. I don't need specific product recommendations if this isn't allowed here, but help where or how I can find what I'm looking for would be an acceptable answer.

To edit: After some reading, I now understand that an exposure of 1 / 100,000 does not mean that my picture is taken in 1 / 100,000th of a second. This means that I need a complete registration in this period.

mobile – How is fast scrolling simulated?

In software, as in films, the illusion of movement is created by displaying images in quick succession. If you want to create the illusion of scrolling from element 1 to element 1000 in a second, divide the number of elements to be scrolled by the frame rate (eg 60 fps) and move them for each frame by a corresponding one Number of elements (possibly in fractions). For example, if element 1 was up in your first frame and 17 was up in your next element, and so on, you'll be at 1000 after about a second.

Improvement of the fast sorting algorithm (Python)

I am learning the algorithm and this is my implementation of quick sorting. How can I improve it further and what other optimal options are there to implement the fast sorting?

def quick_sort(arr):
    length = len(arr)
    if length <= 1:
        return arr

    else:
        pivot = arr.pop()

    items_greater = ()
    items_lower = ()

    for item in arr:
        if item > pivot:
            items_greater.append(item)
        else:
            items_lower.append(item)

    return quick_sort(items_lower)+(pivot)+quick_sort(items_greater)

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canon – The EOS 700D freezes in live image / video mode, during JPEG conversion or during fast RAW recordings

see update below.

suddenly my EOS 700D freezes in live view or in video recording mode. Sometimes the live view shows a still image that is several seconds old and is not updated, sometimes the still image contains pixel error patterns. And sometimes the display only shows a colorful gibberish. Taking photos still works fine, in both live view and non-live view modes. After 30 seconds – 1 minute in live view mode, the camera locks completely (only removing the battery works). Recording videos does not work, the video duration remains at 0:00.

Oddly enough, the display of photos and all menus work properly, so it's definitely not a display error. I have just updated the firmware to the latest version (1.1.4 -> 1.1.5) and tried a different lens – to no avail. Both lenses and the SD card work in my EOS 600D.

Unfortunately my camera has an 8 day guarantee, so I have the feeling that this error was fixed (although it is probably just bad luck).

Any ideas what could be causing this error, and maybe how to diagnose / fix it? Here are some pictures.

Thanks in advance, Lukas

TO UPDATE: It has been several months since the original errors occurred and I would like to update you on how the problem has developed afterwards, in the hope that it can help someone.

The camera worked flawlessly, at least for RAW + JPEG pictures without a live image. At some point, even the live view and video mode worked again, so I was already relieved and thought that the problem was solved.

But then, unfortunately two weeks ago, the problems got worse again: suddenly the camera blocked even with normal RAW + JPEG shots through the viewfinder. The video and live view mode also no longer worked. Reinstalling the firmware or formatting / changing the SD card had no effect. I found that RAW-only mode works as expected even with fast shots while locking the camera in every JPEG mode.

For another week, the camera worked flawlessly in RAW-only mode until now, when fast shots even in RAW-only mode caused the camera to crash. This now makes the camera pretty unusable, which is sad since the photos are still fine and the camera is not very old. I have to consider repairs and expect high costs.

UPDATE 2: I still use the camera without repairs. It works reliably in RAW mode, the JPEG mode sometimes even works for weeks and then stops working for weeks. Using live image or video mode appears to kill the camera within minutes, causing everything except RAW to stop working for weeks. But I can do without JPEG and stay with RAW instead of paying the repair cost.

Display shows colorful tip
Display shows colorful gibberish

The display shows an old still image with pixel errors
The display shows an old still image with pixel errors

Camera completely locked (no menus / buttons / power switch work)
Camera completely locked (no menus / buttons / power switch work)

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