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Filter Density and Format Size (2 replies and 4 comments)

Krishan
3 months ago
Krishan 3 months ago

Hi Roger,

I am trying to do as much as I can to match a look between formats. One format is anamorphic S35 and the other is slightly larger than 15-perf IMAX (76mm x 56mm). If I'm using a 1/8 Black Pro Mist filter on the anamorphic S35 format, should I use a denser filter for the IMAX+ format?

 

Thank you in advance

dmullenasc
3 months ago
dmullenasc 3 months ago

But why are you shooting in IMAX and trying to soften it down to look like 35mm anamorphic or Super-35?  And are you talking about film formats where grain size / enlargement is also an issue? Are you blowing-up the 35mm to IMAX or shrinking the IMAX down to 35mm?  How are you doing the post to be able to intercut the formats? Digital intermediate? Optical printing? 

Krishan
3 months ago
Krishan 3 months ago

Thank you for your response, David. Those are great questions.

I am trying to match 6x8 medium format still photographs shot on spherical lenses with the anamorphic S35 aesthetic. I need the resolution increase for the still photo work because (in my opinion) grain is much more apparent in a still photograph than in motion picture film. The film will be scanned and presented digitally, film is only used for capture.

I understand that I will not be able to recreate the anamorphic character (cylindrical distortion, oval bokeh, unique flares) with spherical lenses, but I want to match the intensity of the filtration. Since 6x8 is so much larger than S35 (3.05x wider, 5.77 times larger area (6:5 S35 to masked 2.39 6x8)), I wanted to know if special effects filters had to be denser to match the 6x8 to the S35.

dmullenasc
3 months ago

I wouldn't use heavier diffusion, then the artifacts are larger which might not match (larger halation areas, etc.) I'd match the filtration and then find ways in post to match better -- believe me, making an image softer in post is the easiest thing in the world! It's the other way that is hard.

Krishan
3 months ago

Would you recommend that I just apply the entire BPM filter effect in post so the software has the most accurate information to work with when applying its blur algorithm or should I use a BPM filter to make the effect feel more organic?

dmullenasc
3 months ago

You should do whatever gives you the look you want. If the BPM filter gives you the look you want, then why not use it?

Krishan
3 months ago

I will. Thank you for your time and sharing your experience

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