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

H. W. Stone colcam at aim.com
Wed Dec 10 17:53:51 CST 2008 

 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 mounted 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 transfer 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 to 
      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)

      
 

      
 


      


      
 

      


      



      

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