• 5 Posts
  • 29 Comments
Joined 1 year ago
cake
Cake day: June 11th, 2023

help-circle

  • Most consumer cameras use CMOS photo sensors, and among those, only the higher end sensors are capable of global shutter (the image is captured at the same moment electronically). CCD sensors are typically more expensive but h they often use global shutter. The EOS R50 is like most consumer cameras with its CMOS sensor.

    Most mechanical shutters will have a leading and trailing curtain with a variable gap between them that controls exposure. The wider the gap, the longer the light hits a row of pixels and the higher the exposure. Your camera’s shutter is slightly different in the fact that instead of using two shutter curtains it only has the trailing one. The exposure is started electronically and stopped mechanically by the trailing curtain. This hybrid shutter is called EFCS (Electronic First Curtain Shutter). Additionally the shutter can be controlled entirely electronically by sampling the sensor values row by row in essentially the same way the mechanical shutter works.

    Without a true global shutter, the rolling shutter effect will be produced when filming or photographing fast moving subjects. So yes, your camera would do what most other cameras do.



  • So looks like according the stack overflow link from @hades@lemm.ee above, your files are individually encrypted. Based on the solution comment, there should be a .MetaEcfsFile with the Samsung file encryption metadata in the SD card root directory if this is true. If so, you would likely need to plug the SD card into a Samsung phone (unclear if it needs to be original phone, same model, or just Samsung in general) and use the “Biometrics and security” menu to hopefully decrypt the SD card. If you still have a newer Samsung galaxy, I’d try with that one first before attempting to locate an older model. And if that doesn’t work, it might require the original phone. Backup SD before doing any of this.