This video demonstrates the capabilities of the OmniSlider for shooting macro videos.
• Footage shot on Canon 5D MKII
• Lenses: Canon 24-105 L, Revuenon 55mm, Sigma 20mm used with macro rings
How we shot it
Generally the standard video speeds of the OmniSlider are much to high for shooting macro.
The very last shot on the film was captured using the video mode at lowest speed. Although motion is very even, it is not perceived as smooth optically due to relatively huge displacement of groups of pixel.
It was shot using 1/50s at 25FPS, giving the shutter angle equivalent of 180°. If it was shot on 360° shutter, that would give more motion blur and it would look much smoother.
All other shots were captured as video but with OmniSlider working at timelapse speeds.
To clarify - this IS NOT a timelapse shot frame by frame. This IS actual video. The camera shot standard HD video, but the slider operated in timelapse mode in order to perform slower movements of the trolley.
Another feature of the OmniSlider that might be used to shoot macro is recording real-time motion and playing it back with a speed divider parameter to slow down the speed. In this case we can also achieve smooth speed ramping and direction changes as opposed to constant speed at timelapse modes.
The conclusions are as follows:
• Timelapse speeds range is quite wide and thus can be used to shoot macro videos at different focal lengths and for different object/scene sizes.
• Trolley movement is perfectly smooth on all timelapse speeds.
• Lowest video speeds can be considered as well, but are way to fast for most macro work
• Higher video speeds may show degradation of image when shooting macro
• "High precision mode" will be added to the OmniSlider firmware to allow for joystick and potentiometers controlled operation at the slowest speeds.