Free calculations have been made software for windows

The Filmcalculator is a program for people working in the film business. It is mainly useful for D.O.P.s, camera-operators, assistants, clapperloaders and gaffers but also for still photographers and video cameramen.
Primarily developed as a personal tool, the Filmcalculator has grown to a professional program with users world wide. Distribution as shareware makes it legal to make copies for colleagues and gives everybody the opportunity to try the program and decide if they like it before actually buying it.
Filmcalculator is a software that helps with calculations needed while planning or shooting a production.
Main features:
Optical calculations:
- Depth of field
- Splitfocus
- Focal length to lens angle
- Lens angle to focal length
Macro calculations:
- Magnification factor
- Needed diopter
- Needed Split diopter
- Scale/Model/SFX
- Event and screen time to frame rate
- Stop motion counter
- Screen time to frames
- Recommended camera spreed for miniatures
Distance/Size calculations
- Distance and object size to focal length
- Focal length and object size to distance
- Distance and focal length to object size
- Matching lens and distance
- Matching lens and format
Filmlength/time calculations
- Time to filmlength
- Shooting time to screen time
- Rollsize to filmlength
- Filmlength to time
- Filmstock counter
- Timecode calculator
Lamp and lighting calculations
- HMI flickerfree speeds and shutter angles
- Beam angle/distance/width conversion
- Illumination calculations
- User adjustable lamp tables
- Color correction
Exposure calculations
- Exposure corrections for speed and shutter angle
- Exposure changes replacing lights
Electricity calculations
- Watts/Volts/Amps/Ohms calculations
- Power cable calculations
- Generator calculations
- General
- Sun set/rise and positions
- Sun mapping / listing
- Moon positions / phases
- Info about filters/filmstock/apertures
- And more.......

A very clever calculator for all business needs with the possibility to define complex calculations The RedMill calculator not only features everything of the windows-calculator or a normal desktop calculator, but also has very usable functions integrated. With the free calculation module you have even more functions available:
- define your own calculations (view rubrique calculation module)
- Check for updates (manually) via internet
- Online-Feedback via internet.
The calculation module is accessible over the corresponding menus in the calculator. With the calculation module you can:
- define your own calculations
- request entries from the user when executing the definition
- make calculations including complex formulas
- define algorythms
- check for conditions
- read and write data from and to the calculator
- create your program rendering your result from the definition upon execution
- send the results back to the calculator or into MS Excel
- start the stored calculation definition over the calculator-menu
With the calculation module the user can "program" their calculations in a simple way without even needing to know any program languages. Click together your calculations and call them from the menu in the calculator.
The calculator as well as the calculation module is freeware, free of advertising and downloadable under the GNU General Public license.
Main features:
- a history (like a paper strip) with the current calculations
- 2 Memory-functions
- unlimited nameable Memorylist
- the calculation of variants (2 calculations in one).
- print of one or both variants in MS Excel
- transfer the calculation to excel for correcting entries (creates excel-formulas)
- VAT/Currency calculation
- rounding to various digits, incl. commercial rounding (to 5 cents)
- save of the current values when quitting (to be activated)
- snapshot function
- time calculation (10:30 - 08:25)
- formula-calculation (20*(30+20)/2)
- logging (to be activated)
- change size of the history (control strip)
- Switch to a small box with entryfield only (less coverage of the background)
- Supports German and English (can be switched during work)
System requirements:
- VB Runtime