LEX for iOS

Choose the right ND filter every time without the guesswork! This long exposure calculator does the thinking for you. You choose the type of photo you want like blurred clouds or smooth water and LEX lists the right ND filters for the job. You can further choose your degree of effect: from bare minimum to upper end.

Features:

* Select the look you want for your photo, from a list of options

* Find out which ND Filters ensure that look

* Time the exposure