[Tig] Re: Oxberry scanners

Chris Swinbanks cws at al.com.au
Wed Nov 29 01:38:11 GMT 2006

I never said it was easy....! The manufacturers only give you the tools 
to get the job done, to various levels of competency.
But it is possible to get it very close. Takes a lot of experimenting 
and understanding of the equipment and what they are /meant /to do, as 
well as what they /do /do), the lab processes and how well they are 
controlled, trial & error.
Sticking pretty close to the old Cineon dynamic range will always give 
you you're best bet at outputting at most noteworthy facilities around 
the world and getting an acceptable result.


Saiprasad wrote:

>Well with respect to colorimetry and faithfully translating the 'analog'
>data off OCN and recording them out, I have yet to come across a scanner
>manufacturer that will actually guarantee that. They all 'say' that we can
>create Lut's and all that fancy talk which really means you need "color
>scientist" to do some kind of magic. And even then, just scanning a
>particular OCN emulsion and recording it straight out has never given us the
>exact densities (after DMIN has been subtracted)when compared to the OCN. If
>there is someone out there who has actually done that .. I'm sure he will
>not be willing to share it. just goes to say that there is still a lot of
>talk without any simple solution a manufacturer can provide. With new
>emulsions , different labs, recorder drift, makes it harder if not
>Having said that ... what most manufacturers do is just give us a standard
>LUT and leave the rest to us operators to figure out. What most of us do is
>try to capture as much of the dynamic range as possible and adjust the
>images digitally so that when recorded they will look good on film. 
>Most film recorders also provide you the ability to record a full range
>cineon file as apposed to a 95-685 point setting. 
>Coming to think of it, remember that all scanners are linear devices. So the
>conversion to Log happens downstream. So you can set it up anyway you like.
>Why not use more CV's to achieve a look instead of restricting it to 95-685
>and leaving the rest for head room.
>I think I have confused myself even more now than before ... ;-)
>sai at efxmagic.com
>p.s. I'm not upto speed on current developments. If there is something I am
>missing, please please let me know.

Chris Swinbanks
Post Services
ph 02 9383 4860
mb 0418 411 499
Animal Logic Film
Bldg 54 Fox Studios Australia, 38 Driver Ave,
Moore Park NSW 2021 Australia
telephone: +61 2 9383 4800 fax: +61 2 9383 4801 cws at al.com.au


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