1 - Lightweight
2 - variable frame rate - anywhere from 1 frame each 5 minutes to 150FPS - would be nice. I would be willing to pay for a custom conversion if any camera shop would do that.
3 - video assist - optional
Time lapse shooting ask full closed film gate at time of waiting of next shoot.
Becase, any small light reflection can destory of final image.
Thta's why, the better, if the cine camera will have shutter at film surface or will have double shutter disk- one mirror, second at film surface.
Time lapse shooting ask of high precision positioning of film at film gate, that's why, the camera must have two side registration pins.
About lightweight camera can be a some problem, the high precision camera will have big weight (8...10 kg ).
The electrical motor with high control at time lapse and high speed ( 150 fps ) canbe problem. The better, to have two electrical motors, for time lapse or for high speed.
The interested idea to use of russian RFK-5, PSK-29 at base for Time Lapse upgrade.
Other idea to use of Konvas camera with upgraded 17EP-16 APK motor with Time Lapse.
We have 2213 crystal sync speed controller with 21 crystal sync speeds
6.250 8 10 12 12.5 15 16 16.666 20 23.976 24 25 29.970 30 32 33.333 36 40 48 50 60 fps,
Time Lapse #1 : time of film exposing 1/8 s and time of waiting of next shoot :1, 2, 4,
8, 15, 30,60, 120, 240, 600, 900sec.
Time Lapse #2 : Time of film exposing 1, 2, 4, 8, 15, 30,60, 120,240,600,900, sec and time of waiting of next frame 1/8 s.
multi mode film counter with LCD display.
The images of 17EP-2213-21 motor after upgradehttps://sites.google...-motors-upgrade
This is controller can be use for upgrade of other type of cine camera with DC motor and optical or magnetic feed back sensors.
And If you will have basic cine camera for upgrade send me question about attach of 17EP-16 APK motor or upgrade of original motor on Time lapse controller.
Video assistance must be direct ? ( without optica viewfinder ) or combined with optical viewfinder ? B&W or Color ?
The special idea of Time Lapse - shooting with automatic pan movement.