HDSLR Tools

This is a collection of web-based tools for calculations that are related to HDSLR video or cinema.

	Frame duration: calculate # of frames to/from duration and framerate
	Frame rate conversion: calculate conversion from one framerate to another
	Aspect ratio calculator: calculate megapixels, aspect ratio, letterboxing.
	File size calculator: calculate megapixels, frame and video filesize estimations.
	Depth-of-field calculator: calculate and visualize depth-of-field.
	Composition calculator: calculate and visualize frame composition.
	Light calculator: calculate required/allowed light