[Konvas] NOT TIME LAPSE ; BUT LOW SPEED :::: camera frame by frame .... Olivier .

Wed Dec 10 18:29:35 CST 2008

NOOOO i am right , i will shoot tape to film !
frame by frame in an Ultra Hight definition ... expose 1/6 or 1/4 of second is not a problem for me because i will use RDI emulsion (the same used in Arrilazer) ... 
so it is a continuous exposure in a SLOW frame rate .... and i syncronise each frame by a video frame using electric interface between shutter and computer ... 

Now i have f2 1/2 using 250 daylight .... so i can still use same emulsion just closing diaph ...and/or ND the lens ...for color calibration i will test difference between what i have now and difference with longer exposure ... 

No problem ... don t worry with exposure techniques ... it is my life ... long exposure , shorts etc .... 

Olivier . 

  ----- Original Message ----- 
  From: H. W. Stone 
  To: cinema at konvas.org 
  Sent: Wednesday, December 10, 2008 6:53 PM
  Subject: Re: [Konvas] NOT TIME LAPSE ; BUT LOW SPEED :::: camera frame by frame .... Olivier .

  You're wrong, Olivier.

  You DO want time lapse-- not just slower frame rates. 

  Why?

  As the frame rate decreases the exposure time INCREASES by huge amounts, you get blur, exposure bias and mismatch, color shift, and you find yourself with one quarter of a second exposures requiring eighteen stops of ND to have that blurry, miscolored image even close to properly exposed.  

  BTW, you may also want a K mod magazine-- one that keeps the feed side slack so that the film flow is smooth.

  -----Original Message-----
  From: olivier satnet <firefly at uio.satnet.net>
  To: Konvas Discussion List <cinema at konvas.org>
  Sent: Wed, 10 Dec 2008 6:33 pm
  Subject: [Konvas] NOT TIME LAPSE ; BUT LOW SPEED :::: camera frame by frame .... Olivier .

  I explain bad myself .. i don t want time lapse , i just want low constant speed with 1000 feets mags on 2C camera so what i explain before is the BEST way i think , i don t need another MOTOR than the one 24fps i have !!! 

    Hi thanks ... I don t need INTERVALS , only a regular syncro 3fps ... BUT i have a good idea ....the ilumination come to my head ! 

    JUST with Gearing i can Speed down the SAME motor .... it is NOT important how much is the FPS ... only the syncro "regular speed" ....
    so if i put a gear or Belt wheels i can speed down absolutely regular to around 3 or 4 FPS ....
    BINGO !!!! i don t need any other motor ! 
    the baseplate of course i need it ! 

    Thanks a lot, Olivier . 
      ----- Original Message ----- 
      From: H. W. Stone 
      To: cinema at konvas.org 
      Sent: Wednesday, December 10, 2008 3:36 PM
      Subject: Re: [Konvas] camera frame by frame .... Olivier .

      About ten years ago I had a "time lapse staging solenoid" drive for the Arri 2b/2c camera, and it worked like a charm, but would be cheaper to build than to buy.

      Get an Arri or Panavision brand "flat base adapter" for the camera.  That's made to put the camera motor beside the camera, not under it-- but then, instead of an Arri motor get an off the shelf "staging solenoid" used on sorting conveyor belts, and set it up to pull a ratcheted drive cog=2 0mounted where the motor would normally go.  This means you can program the staging solenoid to trip at given intervals, anywhere from twenty or so times a second down to once a month.  The difference is that when it fires it fires fast, and you get a properly exposed, advanced, and handled frame.

      If you do get a motor from Clive, it will work, but staging solenoids are interval set items, the motors are not.

      -----Original Message-----
      From: olivier satnet <firefly at uio.satnet.net>
      To: Konvas Discussion List <cinema at konvas.org>
      Sent: Wed, 10 Dec 2008 2:00 pm
      Subject: [Konvas] camera frame by frame .... Olivier .

      HI guys, for this moment , i own a Arri2C full overhaulhed with a 24FPS motor (24fps syncro only) and PL mount ...
      i will receive my 1000 feet magazine for Arri2/Arri3 .... 
      so i will have completed my system with own equipment for tape to film ....and mount all in a metalic structure with marks for 
      1:85, 16/9, and scope transfer 

      BUT, i am really interested in a 3 to 4 FPS t ransfer from stills ... (animation or frame by frame transfer ...) OK it take more time but will make another option to tranfer video to film for my customers ) 

      SO i need info about a TOBIN motor for low speeds ... frame by frame 1 fps 2fps 3 fps .... (like the timelapse ones ...) to mount it on my Arri2C 
      I need so a Inverse Baseplate to plate the motor in a side of the camera and NOT below ... for more stability ...

      so any Timelapser have info wich motor TOBIN or other will be good for this system ???

      Bests, Olivier . 
        ----- Original Message ----- 
        From: Speedbirdmgh at aol.com 
        To: cinema at konvas.org 
        Sent: Tuesday, December 09, 2008 7:23 AM
        Subject: Re: [Konvas] funny mount

        "Thee´s a nice zoom lens on EBay these days… Do you know the funny kind of lens mount? Item 220323145688"

        Ole,

        Yes, that looks like a 16mm "C" mount to me. but there seems to be a sealing ring missing over the rear element, should'nt affect the image though.

        I have one identical to above but with Arri standard mount. Mine has "minty" glass and has been serviced.
        Euros 200.00=2 0to you!

        These are nice lenses if you can get a good one. The 35mm version is stunning.

        Rita   (got Uher spares if you need any)

        & nbsp;

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