ND Filter Calc (DSLR)

Lars Mathuseck

About this app

Calculate the optimal exposure time for your photograph.
Simply specify the filters you want to use and the exposure time of the camera and ND filter calculates the optimum time span, for your photographs to become awesome.

Core features:
- Add your own custom filters
- Select one or multiple filters
- Built-in timer / alarm with optional vibration and sound
- Easy to use, simple layout


If you got any questions or suggestions for this app, just write an email at [e-mail]
I will answer ASAP. :)

For more information about neutral density filter:
http://en.wikipedia.org/wiki/Neutral_density_filter

Ratings and reviews

**update** app crashes every time when i switch to other app or is power save turns screen off. Thus resets the timer. So currently this works only to calculate new exposure time for filter. Not usefull for long exposure timing Excellent app! I wish if i could rearrange my filters as i like. Also it would be really nice if i could use cellphone camera to measure filter factor by taking picture with and without filter.

great app, i use it for B&W photography and modified preset ND filters to various other: red, orange,etc.... very helpful 'on the site'. if you want some ideas, please allow factor 1.5, 1.7 (decimal). in future add 'split exposure' (some batch exposure so i can have signal after having more of them).

I really like the add filter function. I now have a collection of filters custom named complete with factors, ND, and f/stops. This is so simple it borders on brilliant. Thanks for putting in the work and sharing the results for free!

What’s new

New version: 2.0.5!
New permission & support for newer devices – have fun!