Convert To drop down Selects the particular film stock to be emulated.
Size drop down Selects the negative size to emulate. Smaller values such as 8mm are fuzzier with larger grain. Larger values have smaller grain.
Film Color slider Adjusts the balance between the original digital camera color palette, and the film color palette. Typically you would leave this at 100% film
Curve slider This control allows you to reduce changes in luminosity, so that the original exposure of the digital footage is preserved. Setting the slider to 0 with the color slider at 100 will give you the hue and saturation of the film stock, with no change to the luminosity.
Grain slider Adjusts the amount of grain applied to the image. The default is 100%, which is an accurate representation of the grain for the selected film stocks. Some stocks have more grain - such as D3200.
The Lift, Gamma and Gain sliders and Hue Adjustment sliders operate by affecting the Shadows, Midtones and Highlights of the image.
Shadows - adjustments will affect pure black 100%, mid grey at 50%, and pure white at 0%.
Midtones - adjustments affect pure black 0%, mid grey 100%, and pure white 0%
Highlights - adjustments affect pure black 0%, mid grey 50%, and pure white 100%
Lift, Gamma, Gain Sliders These sliders adjust the image by adding or removing brightness to the Shadows, Midtones and Highlights respectively.
Adjustments happen before the Hue slider adjustment (below) - so you can use these sliders to control how much of the image is in the upper highlight area before applying the color cast to it.
Hue Adjustments The Hue and Hue Amount sliders adjust the color of the shadows, midtones, and highlights.
Saturation slider This will saturate or de-saturate them image.
Levels sliders Use these to set the clipping point for black and white, and where the mid point grey lies.