ND Filter Calculator

Works great! One nice feature would be for the app to remember your previous settings so you don't have ro choose the nd factor every time you start the app.

The app works great but since it's limited to 30" as the Base exposure I can't use it.

I found this not easy to use as it does not have the number of stops listed

Sumple but extremly useful application. What I like is that it display time in minutes and seconds just as my camera do. I have two suggestions. First: I would like that program keep my last settings for time and ND filter type. Second: I would like that program show result automaticaly without submit button. Thanks a lot !!

Would give 5 Stars of the language would not keep defaulting back to French! Very frustrating.

Seems quite good, need to use it in the field.

works perfectly with my nd1000 filter cheers :)

It does what I need, and this in a simple manner.

Lack of information and settings

This app work perfectly

How simple can it be? Select shutter speed and filter strength, tells new speed which is what you want.

Nice and simple aap.. an optional alarm/beep notification on the timer if possible, wud make this app perfect..

I appreciate the simplicity of this app. I'd ask that in a future upgrade, make ND filter factors go beyond the current 3.0 (10 stops) and extend the factors out to at least 4.8 (16 stops). Is asking for 6.0 (20 stops) too much? :) Thanks for your consideration.

Gets the job done! Maths for ND3.0 at 1/320 of a second is out by over 4 minutes!

Finally one that works :)

Simpel and with a countdown

Thank you :-)

UPDATE Aug 20 Thanks for the heads up. The issues were somewhat fixed and my rating went up: 1. the units were added as hint in the text field; would have been rejected by Apple, let's say it's ok for Android 2. a timer was added; this is the good part; the bad part is that the timer is useless since counts down to 0 but instead of sounding an alarm to let you know, it continues with the negative numbers :) Please fix these and I'll get back to you. +1 star because the timer is still useless. _____________________________ 1. no units for filter value 2. no timer for the actual time otherwise good design.

The long exposure calculations are correct in the app, but short exposures are off. Many apps base the calculations off of the in camera shutter speeds vs the actual math, which throws off the calculations for long exposures. This app has the correct calculations for long exposures. For example, with a 10 stop ND and a 1 second base the numbers are correct. Some short exposure calculations are correct, however 1/320 is off even with a 1 stop ND. A suggestion: use fractions vs decimals for short exposures.

Just enter the shutter speed you used without your ND Filter, then enter your ND Filter number and press calculate and you get an instant answer and a timer, couldn't be easier. TO THE DEV. please add a lock to the ND Filter field to lock in a value, saves having to change it every time, thank you, great work, spam and add free, please donate to the dev.

Would be far more useful if ND filters were expressed in terms of number of stops.

What would really help is if I entered the f-stop that am working with and then adding the ISO that I'm workiing with and then include the neutal density filter/s that ill be using for the shot then calculate exposure time. That would be perfect for long exposures of scenery, landscape, water etc....