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Author
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Topic: Inaugural test footage from a new variation of the Ultrapan8 system called UP8 3.1
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Nicholas Kovats
Junior
Posts: 29
From: Canada
Registered: Jun 2011
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posted July 13, 2012 07:47 AM
We have diverged the UltraPan8 system into two systems.
The initial prototype using the full 16mm width of Regular film stock with 8mm pulldown shall be referred to as UltraPan8 2.8 which now includes the specific aspect ratio (2.8) as per the nomenclature. The new variation shall be referred to as UltraPan8 3.1 which utilizes the full 16mm width of Double Super 8 film stock with Super 8mm pulldown.
The imaging area has been increased by 39% due to the smaller Super 8mm perforation dimensions relative to UP8 2.8 R8. The UP8 3.1 DS8 frame width is greater than Super 16mm, i.e.
1. UP8 2.8 (Regular 8) AR = 1:2.8, FRAME = 10.52mm x 3.75mm, AREA = 39.45 square mm
2. UP8 3.1 (Double Super 8) AR = 1:3.1, FRAME = 13.00mm x 4.22mm; AREA = 54.86 square mm
The resultant frameline is thinner. Mechanical interplay between transport components such as claw, pressure plate and sprockets are more critical than UP8 2.8.
The base camera conversion relies on the original JK Camera Double Super 8mm conversions of factory Bolex H8 cameras. Bolex H16 optical components and aperture are also used. A new milled gate is part of the conversion as with UP8 2.8 Bolex cameras.
This is a true hybrid system in the sense that no native 16mm wide Double Super 8 projectors are known to exist with the possible exception of special contact printers. This is a genuine "originate on film and finish on digital" camera system.
Relative to the image sequence JPEG deliverables...actual overscan pixel density has been increased to 2,440 x 880 from 2,080 x 780 (UP8 2.8)
Here is the inaugural scanned test footage with Ektachrome 100D reversal film and a Carl Zeiss 10mm f2.0 Tevidon lens, i.e. https://vimeo.com/45620380
The smaller Double Super 8mm perforations are very evident in the overscan verison, i.e. https://vimeo.com/45622450. Compare this to the UP8 2.8 R8 overscan example,i.e. https://vimeo.com/27492482.
Here are some frameshots for your examination, i.e. http://picasaweb.goo...&psc=G&filter=0
Thanks again to Jean-Louis Seguin (bolextech@gmail) for another excellent implementation and to John Gledhill at bitworks.org for another outstanding scan. Processing was by Niagara Custom Labs here in Toronto.
I would like to point out some key concepts. The UltraPan8 system is about maximizing the image area to provide the best small format experience from our admittedly ultrawide bias. Irrespective of film perforation specifications. A native spherical film format that uses the best part of standard 16mm optics (center) and doubles the magazine run time relative to 16mm. We love large screen cinema and I suspect we have minimally provided an excellent extraction process for the classic and smaller Cinemascope aspect ratio of 1:2.4.
As our beloved Super 8 camera crumble to dust...our decision to use plentiful, all metal and robust Bolex cameras is indicative of our longterm intentions.
Regards,
Nicholas Kovats
Toronto, Canada
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