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s16 to 35mm anamorphic blow up


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#1 Deepak Bajracharya

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Posted 04 July 2007 - 01:38 AM

Namaste,

Is it possible to have an anamorphic blow up print from s16 negative shot with normal spherical lens? Is it the same process as the super35mm to anamorphic or something different? How is it possible with the optical blow up methods rather than the digital intermediates?

With best regards,
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#2 David Mullen ASC

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Posted 04 July 2007 - 02:03 AM

It's the same as Super-35 -- you compose for cropping to 2.39. At the optical printer step, you crop and squeeze by 2X into anamorphic.

Usually in Super-35, the optical printer step is between the Super-35 IP and the anamorphic IN. It would be the same in Super-16 in most cases, you'd make a color-timed contact printed Super-16 IP and then blow this up to a 35mm anamorphic IN by cropping, squeezing, and enlarging.

It is possible to go directly in the optical printer from the Super-16 neg to a 35mm anamorphic print or 35mm anamorphic IP, but only a few labs can do this and you'd have to cut your negative to how they needed it (usually a zero cut neg with frame handles.)

It's a lot simpler if you do it with a D.I.
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#3 Deepak Bajracharya

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Posted 05 July 2007 - 01:21 AM

Namaste

Thank you very much as always.
Now I am concerned with the difference in the picture quality of anamorphic blow up over the 1.85:1 blow up. Whether it?s a huge difference or just a tolerable difference.

It?s approximately 28% of negative area loss over the anamorphic blow up from S16 1.66:1negative area as I calculated, please correct me if this is wrong.

Please explain what is a zero cut negative with frame handles.

With best regards,
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#4 David Mullen ASC

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Posted 05 July 2007 - 01:56 AM

Whether a blow-up to 35mm anamorphic is too grainy compared to 1.85 is just something you'd have to test and see for yourself. It's grainier, definitely, but you are blowing it up to a bigger area of the 35mm projection frame, so it also gets enlarged less on most screens compared to 1.85 projection.

You should talk to your lab doing the blow-up. You can also read this:

http://www.duart.com/film_blowup.html

What is ?zero cutting??

A zero cut is a quick closing or opening of printer valves that control exposure onto a film stock. ?Zero cutting? is used in A+B blowups with four-frame overlaps at cuts to eliminate the possibility of jumping splices in a blowup and creates a clean negative at a scene change.

For A+B contact printing the ?zero cut? on an outgoing shot, while the quick opening of the printer valves on an incoming shot will create what looks like a film cut, or one frame ?dissolve.? On optical printing machines (for a blow up to 35mm) the ?zero-cut? method of A+B printing, with a minimum four-frame overlap, eliminates the possibility of a noticeable jump at scene changes.
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#5 Dan Goulder

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Posted 05 July 2007 - 10:14 AM

You need to take sample footage and have a minute or two blown up both ways (1.85/1 and cropped for 2.35/1). Going to DVD, the 2.35/1 crop will work surprisingly well. On the other hand, that aspect ratio as derived from super 16 can look extremely grainy when blown up to 35 and projected theatrically. A film test prior to production is imperative, where you can arrive at your own conclusions.
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#6 Deepak Bajracharya

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Posted 06 July 2007 - 01:07 AM

Namaste,

Thank you very much for the infos and facts.

Please give the name of the films ever produced in this way.

With best regards,
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