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Grain Question


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#1 devolved

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Posted 24 August 2006 - 01:28 PM

Just a general question for a beginner DP. Some of the first things that I've shot were on fuji 250d... and the grain size was more than I expected to be. I've noticed that opening the iris a bit more than the lightmeter reading produces more acceptable results ... is it generally so? Does the grain size depend on how well you expose the film? I know that the faster the film, the more grain you get. My question I guess is what can I do to minimize the grain while shooting with any film stock and still to be able to color grade it digitally in 10 bit for more contrast. Thank you for your help.

Andrey Arkhipov

Edited by devolved, 24 August 2006 - 01:31 PM.

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#2 Jon Kukla

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Posted 25 August 2006 - 03:38 PM

Well, the basics (which you probably already know) are to use slower and newer stocks, slightly overexpose, make certain that the stock has been stored properly and is quickly developed, and undergo a normal ECN2 bath (i.e. no pushing, pulling, cross-processing, or silver retention). Other than that...not much I should imagine. However, there may be other factors which may cause grain to become more noticeable, such as lenses, tonalities, and colors.
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#3 Leo Anthony Vale

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Posted 26 August 2006 - 11:31 AM

However, there may be other factors which may cause grain to become more noticeable, such as lenses, tonalities, and colors.


If you take two stills of the same subject on a grainy film with a slow shutter, one on a tripod (or steadied some way) and the give the second shot a bit of a tremor so it is slightly blurred.

The blurred picture will look grainer than the sharp one.
The eye looks for something sharp to lock on to. In the blurred picture the grain will be the sharpest edge.
In the sharp picture the detail will mask the grain.

Flat surfaces, diffusion and out of focus backgrounds will bring out the grain.

Kodak did a study of RMS granularity and pointed this out.
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#4 Leslie van P

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Posted 03 September 2006 - 09:43 AM

Offtopic Message; Andrey, please contact me on mightypoo007@hotmail.com. Please?
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Metropolis Post

Abel Cine

Rig Wheels Passport

rebotnix Technologies

Glidecam

Visual Products

Willys Widgets

CineTape

Broadcast Solutions Inc

Technodolly

Wooden Camera

Tai Audio

Aerial Filmworks