Free lens corrector software software for windows

Subtitle Corrector is a small Javascript application that will help you repair your subtitles.
With this small script, you can easily re-timing your bad subtitle file to your movie, by linear transforming the timestamps in time found in the subtitle file.
You shouldnt care calculating framerates or other speculations, just copy-and-paste your file to the page, simply add (bad time - good time) pairs as many as you want, then push "correct".
The script applies linear transformation in time for the time intervals you added and re-generate the subtitle text in seconds.
Supports HH:MM:SS,mmm and {timestamp} subtitle formats.
Developed in javascript, HTML.
Tested in latest versions of IE, Firefox,Netscape,Opera.

Vignette Corrector provides you with a professional plugin that will enable you to adjust the size and brightness of the vignette.

Vignetting is the brightness fall of at the corners of an image. This is a rather universal phenomenon, however it is more pronounced for wide-angle lenses.

Vignetting can be very disturbing if you want to combine a set of images to a panorama (panorama stitching). You want to compensate that unwanted effect on the individual frames before stitching. On the other hand, vignetting is sometimes deliberately used as a nostalgic style element in portray photography.

Requirements: Photoshop

G DATAs DaViDeo (Pro) is a great and easy to use DVD converter, but it has a real lame bug in it... if a DVD is converted into mpeg vcd / mvcd mediafiles and splitted by filesize, the header will be corrupted (writes mpg2 instead mpg1 header)! So a lot of DVD player cannot replay these buggy mpeg files.
DaViDeo Corrector is a useful tool which will analyze the files by its GOP structure and if needed will do correct it! Warning:Only use DaViDeo Corrector with stored mpeg files converted by G DATAs DaViDeo (Pro) application ... otherwise it colud create damaged videofiles, use DaViDeo Corrector at your own risk!

Scope Calculator will calculate and compare the magnification, field of view, and exit pupil of up to 7 eyepieces when used with a specific telescope.
Also allows easy toggling between the results when used normally, with a Barlow lens, and with a SCT reducer-corrector.

Genius Maker Free Edition 3.0 is an all-in-one program which helps high school students improve their skills in Mathematics, Physics, and Chemistry. It contains 34 educational software programs. It includes Graph plotter, Analytical geometry, Matrix algebra, Equation solver, Triangle solver, Unit converter, Refraction of rays, Lens and mirrors, Color theory, Transverse waves, Radioactive decay, Periodic table, Inorganic compounds, functional groups and Gas Laws.

Enhancements: Includes Inorganic compounds and Functional groups modules.