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Re: [OM] I really need all your help with a technical issue

Subject: Re: [OM] I really need all your help with a technical issue
From: David Irisarri <zuiko3000@xxxxxxxxx>
Date: Fri, 19 Aug 2011 20:16:39 -0400
Yeah, I think his idea is taking pictures of projected images. It´s like
being inside the movie and taking pictures of it. The movie isn´t stopped at
all. It´s like when you take a picture in real life.

David

2011/8/19 John Hermanson <omtech1@xxxxxxxxxxx>

> If these are his movies, I assume he has his them on dvd.  Use a
> computer, do frame captures, crop from there.  Taking pictures of a
> movie projected on a wall = Huge quality loss.  Unless the quality loss
> is part of his original idea and is desired.
>
> __________________________________
> John Hermanson  |   CPS, Inc.
> 21 South Ln., Huntington NY 11743
> 631-424-2121  |  www.zuiko.com
> Olympus OM Service since 1977
> Gallery: www.zuiko.com/album/index.html
>
> On 8/18/2011 12:50 PM, David Irisarri wrote:
> > Dear zuikoholics,
> >
> > As you probably know I have come to NY to live and today I met a guy who
> is
> > creating movies. I showed him my portfolio and he really likes it and we
> > have been taking for a couple of hours to know each other. He loves
> retaking
> > pictures of his movies being projected in a huge wall and he also likes
> > cropping them. He told me if I can help him with this issue in a couple
> of
> > weeks and I have been carefully thinking about the right procedure for
> > maximizing quality. He normally enlarges pictures a lot to be displayed
> in
> > galleries and I was thinking about several possibilities.
> >
> > First, I think we should rent an Olympus E-5 with the 35-100 f2 lens for
> > some reasons. The constant aperture and super high quality of the lens
> but
> > on the other hand I think a movie projected in a dark room it will
> require
> > using a high ISO even the aperture is high and the resolution is awesome.
> > Also 35-100 will help him to go inside the projected image and cropping
> the
> > part of the seen we wants.
> >
> > I also have been thinking that the camera should be working in manual
> mode
> > for some reasons:
> >
> > 1. I need to project the light in a white card and use manual white
> balance
> > because if I use AWB the camera depending on the scenes will get the
> wrong
> > WB for sure.
> >
> > 2. Manual exposure. If the scenes are dark or bright the camera will try
> to
> > get the right exposure leading to a wrong exposure in most of the scenes.
> I
> > wonder how I should calibrate the camera in order to get perfect
> exposures.
> > is it possible to project a middle grey to adjust the exposure of the
> > camera? I want to adjust the dynamic range of the camera according to the
> > projector contrast ratio. I was thinking to read the full specs of the
> > projector and adjust the exposure to capture deep shadows and bright
> > highlights.
> >
> > 3. If the movie is being played at 25 fps in a dark light, I need a
> minimum
> > shutter speed to capture a random frame of the movie.
> >
> > So maybe E-5 maybe is not the right tool for doing this. I also was
> thinking
> > in a PENTAX P65+ camera for capturing huge images with very high
> resolution.
> > The movie has a 16:9 format or even wider close to 2.11:1 aspect ratio.
> If I
> > use a four thirds sensor I´ll lose too much resolution.
> >
> > I really would appreciate your feedback, ideas, regarding to exposure,
> > etc...I would be glad to hear from you what is the best solution as I
> want
> > to create perfect pictures for him. Probably I should use Capture ONE
> Phase
> > V to control the camera from the Apple computer we are going to use.
> >
> > David Irisarri
>
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>
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