Bob Hart
September 27th, 2012, 10:02 PM
Have a look at this web page and read down to the info on the mechanical shutter system.
Aaton Unveils the Delta Penelope Camera | CineTechnica (http://blog.abelcine.com/2012/09/27/aaton-unveils-the-delta-penelope-camera/)
A few years ago when many of us were working ourselves up into a lather making groundglass 35mm adaptors for small sensor video cameras, there arose the topic of syncronising a disk precisely to the camera frame rate.
This was to eliminate variable density issues with wax laminate disks and to segment glass disks with several grades of groundlgass texture and select each texture by offsetting the disk drive sync by quarter turn increments.
The wax laminate disks required manufacturing expertise way beyond what any backyard or kitchen table mechanic could hope to achieve, likewise the development of an electromechanical drive and signal sampling system of sufficient precision to slave to camera frame rates.
Aaton have amazingly cracked the nut with their innovative mechanical shutter design and gone a step furthur with their technique of actually physically moving the camera sensor to achieve an apparent sharper resolution than the sensor pixel pitch can actually deliver, something that moving a groundglass also achieved relative to its actual resolving ability.
We live in amazing times. What's better is that this innovation will be keeping precision mechanical design and machining skills alive. I hope they make a lot of them and find their sustaining market share.
Aaton Unveils the Delta Penelope Camera | CineTechnica (http://blog.abelcine.com/2012/09/27/aaton-unveils-the-delta-penelope-camera/)
A few years ago when many of us were working ourselves up into a lather making groundglass 35mm adaptors for small sensor video cameras, there arose the topic of syncronising a disk precisely to the camera frame rate.
This was to eliminate variable density issues with wax laminate disks and to segment glass disks with several grades of groundlgass texture and select each texture by offsetting the disk drive sync by quarter turn increments.
The wax laminate disks required manufacturing expertise way beyond what any backyard or kitchen table mechanic could hope to achieve, likewise the development of an electromechanical drive and signal sampling system of sufficient precision to slave to camera frame rates.
Aaton have amazingly cracked the nut with their innovative mechanical shutter design and gone a step furthur with their technique of actually physically moving the camera sensor to achieve an apparent sharper resolution than the sensor pixel pitch can actually deliver, something that moving a groundglass also achieved relative to its actual resolving ability.
We live in amazing times. What's better is that this innovation will be keeping precision mechanical design and machining skills alive. I hope they make a lot of them and find their sustaining market share.