[Frameworks] Film to digital photo to video on a JK

[Francisco Torres]

''...capturing individual still frames on a JK optical printer to then be
compiled into video output.''
Could a modified scanner be more efficient and cheaper than a camera? Seems
that other people have gone that way.

2015-10-26 9:03 GMT-04:00 Chris G <spydir at gmail.com>:

> Frameworkers,
>
> I am looking into mirrorless digital cameras for capturing individual
> still frames on a JK optical printer to then be compiled into video output.
> I realize that there is information out there on past implementations of
> DSLRs and mirrorless cameras used for digital transfers but I want a very
> contemporary take given the advancements in this format and what one's
> general concerns might be. I would also love to see examples of output from
> similar set ups. I realize that much of this can be gleaned from research,
> but my attempts so far have only yielded uncertain results (dead links, old
> posts, unspecified techniques). I am more interested in the consumer market
> of these, and don't really want to spend more than $500 on a body.
>
> • What sensor size (considering crop factor/coverage and using existing
> 50mm and 75mm lenses on my JK) is optimal for capturing 16mm/S8? It seems
> that the mirrorless cameras have gained considerably larger sensors in the
> last year(s), even on the consumer level, so now certain sensors are 2x the
> size of a 16mm frame. JK's website references using an older Lumix and the
> old Sony S1 Pro, which doesn't really apply to today's market so well.
>
> • Will I likely need to extend my bellows more than 6"?
>
> Light
>
> • Consumer cameras seem to have a lowest native ISO rating of 80-200,
> depending on the model/brand. I'm assuming that one consideration I should
> take would be finding a camera/sensor with the lowest native ISO, but is
> there generally a massive difference in latitude between the common
> 80/100/160/200 CMOS sensors?
>
> • Would I need to compensate for density through lamp brightness/filters
> in order to capture more detail in shadows/highlights?
>
> • Alternative light sources? A Frameworks thread back in December 2010
> addresses this pretty well and how the standard bulbs are only rated for
> 10-20 hours of use and this process being incredibly slow you could burn
> out your bulb before you even capture 100' of film. I am inclined towards
> building my own LED source but am wondering what others have come up with.
> I know Jaakko sells LEDs for the 103/104, but I think I can come up with
> something more appropriate for my specific needs.
>
> Process/Output
>
> • That same thread from Dec 2010 mentions compiling the images in an
> animation codec in FCP7. I have Adobe CC + access to older CS programs and
> Media Composer 8, so wondering what the best workflow with those resources
> would be.
>
> Overall
>
> I have a 103 that's controlled with a computer-based sequencer. I use
> Nikon enlarging lenses and a C-mount REX 4. I don't want to invest in large
> format (135mm/150mm) lenses at this point. I am leaning towards a Sony
> A5000/51000, depending on the crop factor/coverage as it has a 23.2mm x
> 15.4mm sensor. I'll control the digital camera as I do the Bolex, through
> the computer sequencer, so I need a wired remote for interfacing the
> shutter actuation. I realize that an older camera body might be just fine
> for my needs, but SDXC would be nice, especially if I want to shoot RAW.
>
> My general expectations are to have a set up sufficient for web output,
> but something suitable for digital projection would also be nice. I know
> this is a sloooooooow process and that there are likely several other
> considerations I've overlooked or just not researched. Any input on my
> specific questions or experience with similar set ups would be greatly
> appreciated.
>
> Thanks,
> Chris
>
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