Dear Jeff, dear Scott,

thanks for your ideas!
The problem sounds so simple, but since the mask is changing from left to right 
between cuts, it’s quite a tricky thing…
So masking the projector wouldn’t really work, but the fogging idea might do 
the job, let’s see…

cheers

Bernd


> On 17-May-2015, at 01:01, Jeff Kreines <[email protected]> wrote:
> 
> You could fog one half of the print before processing using a camera/optical 
> printer/contact printer with a mask added.
> 
> But since most 35mm projectors have interchangeable brass aperture plates, it 
> would be cheaper and simpler to make a custom plate that masks off the image. 
>  These are commonly used to mask the image to 1.66 or 1.85.  Of course this 
> is easier if you are only screening at one venue, since projectors will vary, 
> and also the aperture plates are often custom-filed to deal with any angular 
> displacement of the film and screen (I am blanking out on the word here — 
> it’s not parallax but it’s like that.)  
> 
> It will come to me the moment I hit send.
> 
> Got it.  KEYSTONING.
> 
> Applying a long length of tape on half of the print will likely cause all 
> sorts of problems, including focus, and it’s likely to jam the projector, 
> too.  Perhaps there’s an ink or paint but getting a good clean line (if 
> that’s what you want) will be difficult, and it will flake off in use.  Then 
> again that may be desirable in your case.
> 
> 
> Jeff
> 
>> On May 16, 2015, at 12:54 PM, Bernd Luetzeler <[email protected]> wrote:
>> 
>> Dear Frameworkers,
>> 
>> I need to find out how to cover one half of a 35mm colour print film with a 
>> black mask (after processing).
>> Of course the first thing to try is an optical printer (before processing) 
>> and I will explore this option in the next few weeks.
>> But as an alternative I already started thinking about other options:
>> Since it is always either the left or the right half, I think it could be 
>> possible to apply a vertical strip of black over the whole print.
>> Is there any paint, ink, marker or tape or other material, that fully 
>> blackens film and that does not come off during projection?
>> 
>> Would be great to hear your experiences
>> 
>> Bernd
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> 
> Jeff Kreines
> Kinetta
> [email protected]
> kinetta.com
> 
> 
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