ND Filter Calculator

Immediately uninstalled.

First time I used it defaulted to French. The "contact me" link is dead; no way to ask for help. I uninstalled. Glad to be rid of it.

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.

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

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

This app work perfectly

Very useful

Immediately uninstalled.

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

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 !!

Lack of information and settings

works perfectly with my nd1000 filter cheers :)

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

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

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

English doesn't work.

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.

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

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

facil de usar, no se necesita más que esto, MUY recomendable

Finally its so simple

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....

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.

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

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.

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.