SLR Shutter Mechanism: high-speed video microscope imagery

This is a high-speed video footage of a shutter mechanism of a single lens reflex (SLR) camera. Note the way the mirror arrives in the upper position, and how it returns to its normal position --- oscillations are very clear and visible on the footaget. Also, note how the shutter behaves, a shock wave travels through the material as it opens and closes.

The first two scenes depict a Nikon FG camera, while the last shows a Zenit camera --- both without film. The shutter speed was set at 1/90 s for the Nikon and 1/60 for the Zenit. The shutter was engaged manually.




The original footage was sampled 4000 FPS and subsequently post-processed by standard video editing software (speed not to scale). The equipment used in making this video is a Keyence VW-9000 series high-speed video microscope.

This video was created by:Dr. Gergely Takács, assistance and idea provided by Szilárd Izsák. The footage was filmed at the Institute of Measurement and Automation, Faculty of Mechanical Engineering at the Slovak University of Technology (STU) in Bratislava, Slovakia. (Ústav automatizácie, merania a aplikovanej informatiky; Strojnícka fakulta STU v Bratislave) Special thanks to Yoshihiro Morimoto for lending this laboratory equipment.

Category:

Science & Technology

Tags:

• SLR
• shutter
• mechanism
• camera
• photo
• photography
• Nikon
• FG
• Zenit
• high speed
• slow motion
• slo-mo
• microscope
• keyence
• vw-9000
• Slovenská Technická Univerzita
• Strojnícka fakulta
• Mechanical Engineering
• Gergely Takács
• gergelytakacs
• Bratislava
• STU

[e1BA]

Ilyet akartam csinálni én is. Csak újabb géppel. Amúgy érdekes, hogy amikor a tükör felcsapódik, akkor egy kicsit visszapattan és árnyékolja a filmet. Nagyon rövid időknél megeshet, hogy a kép alja ezér sötétebb lesz.