Jump to content


Photo

THEN SHOOTING EO WITH AATON XTR PLUS


  • Please log in to reply
3 replies to this topic

#1 ANTOINE MANICHON

ANTOINE MANICHON
  • Basic Members
  • PipPip
  • 11 posts
  • Camera Operator
  • PARIS-FRANCE

Posted 30 August 2006 - 01:56 AM

Hi all,
I've posted a topic about exposition troubles 2 weeks ago.... Using Sekonic, brand new film, pro checked camera and lenses, my first test were EO about 2 stops. I decided to shoot (short movie, 3 days Int/ext, sun and lighting) EU 1 stop and made other tests in situation. At the end, before processing all rolls (3*400ft), I asks to process the test : it was EO again about 2 stops ! then labo processed -2 and it's fine so far. That means I have 3 stops mistake between my Sekonic and correct exposition. Do you have like an explanation ?
Please note :
-lenses : GO serie, iris ok
-25 fps
-172,8°
-BW plus-x film
-pro process (Cinedia france)

thanks !
  • 0

#2 Jon Kukla

Jon Kukla
  • Basic Members
  • PipPipPipPip
  • 399 posts
  • Other

Posted 30 August 2006 - 05:17 AM

Assuming that the camera is running at speed and the film hasn't been compromised in any significant way, the only thing I can think of is trying your tests again with a different light meter. Did you calibrate yours?
  • 0

#3 ANTOINE MANICHON

ANTOINE MANICHON
  • Basic Members
  • PipPip
  • 11 posts
  • Camera Operator
  • PARIS-FRANCE

Posted 30 August 2006 - 05:06 PM

Assuming that the camera is running at speed and the film hasn't been compromised in any significant way, the only thing I can think of is trying your tests again with a different light meter. Did you calibrate yours?

I didn't calibrate my light meter, I've been using it for stills 35mm photos, same Plus-X film as the shooting, results were little EO (1 stop max) or perfect. I noted difference of measure with my Minolta reflective meter, but I was so sure that Cine Sekonic is better... Now, discussing with experienced DOP, it appears the laboratory could have used special process (only explaination for such difference), I should have done a sensito test before... I'm furious, what about Kodak specifications ? it says, with that labo and that film, you should expose PLus-X 80 iso at 250 Iso... If I had known... we'd have not rent lighting equipment !
  • 0

#4 Charles MacDonald

Charles MacDonald
  • Sustaining Members
  • 1157 posts
  • Other
  • Stittsville Ontario Canada

Posted 30 August 2006 - 09:21 PM

-BW plus-x film
-pro process (Cinedia france)



About a year or two now Kodak revised the Plus x formula so that it could be porcessed in a bleach that doses not use chrome metal. This resulted in a total change of thereocmended chemistry and the Recomended film speed.

Now plus x reversal is rated at either 50 or 100 depending on if the old or new chemistry is being used, and you have to check with the lab. If the lab is using another brand of chemistry, they may have their own guidelines.

It s too bad really, their would be a niche for an old-fashoned stock at 25 ASA to use with old cameras.
  • 0


Abel Cine

Technodolly

Media Blackout - Custom Cables and AKS

Metropolis Post

Broadcast Solutions Inc

The Slider

Willys Widgets

Ritter Battery

Gamma Ray Digital Inc

rebotnix Technologies

Opal

CineLab

FJS International, LLC

Rig Wheels Passport

Paralinx LLC

CineTape

Tai Audio

Glidecam

Wooden Camera

Aerial Filmworks

Visual Products

Glidecam

Opal

Aerial Filmworks

rebotnix Technologies

Gamma Ray Digital Inc

Paralinx LLC

Willys Widgets

Rig Wheels Passport

Technodolly

Visual Products

Media Blackout - Custom Cables and AKS

Broadcast Solutions Inc

The Slider

Ritter Battery

Wooden Camera

Abel Cine

Tai Audio

CineTape

FJS International, LLC

Metropolis Post

CineLab