Talk:Professional and Technical Writing/Business Communications/Beginning

Question what are MTF charts? I see the reference to them on this page but I have no idea what they are or why I might want to use them? Does somebody here have the knowledge to fill this in or at least to provide a link to where I might learn more about them. thx --SteveJM 21:04, 27 Apr 2005 (UTC)

It was difficult for me to comprehend this module because of its length. Perhaps it could be split up?

I think we can do a lot of people a favor by cutting out the fatty portions of this document that pertain to user, computer, camera, operating system, editing system specific comments. These are supposed to be the basics right? (Steve: MTF charts are graphs of how well the lens channels light through itself based on the size of the aperture. The idea is that as the aperture gets smaller - the lens is using less of the glass; conversely, as the aperture gets bigger the lens is using more glass. If the lens uses too much or too little glass - aberrations appear in the transfered light. The range between "too much" and "too little" we can describe as the lens's "sweet spot".) Again, MTF charts and references to advanced discussions should not be on this page. Steve, feel free to delete this once you've read it. --Lepercon 05:10, 6 May 2007 (UTC)

Working on "how to make an image brighter or darker..."
I'm doing a lot of cutting and clarifying. I've taught photography to youth as young as 10 and they get the "big hole" "small hole"; "long shutter" "quick shutter" thing. Its a quick way to get people thinking about how it works. The alternative is: imagine a water pipe that you can constrict the width...

If anyone feels the cuts I'm doing as unjust, please correct me. However, since most of the sections have links to wiki pages that go on at length about the topic... brevity should be our focus. --Lepercon 06:36, 6 May 2007 (UTC)

Camera Shake Section Incorrect
In the section discussing camera shake, there is no consideration given to the focal length and sensor size. For long focal lengths, shutter speeds must be faster to compensate for magnification of whatever camera shake exists. For short focal lengths, one can get away with much longer shutter speeds. That's why the rule of thumb is maximum shutter speed = 1 / focal length...