Is there an app for An­droid phones to cal­cu­late ex­po­sures with ND fil­ters?

NPhoto - - Over To You… - Ger­ald Gill, Bris­tol, UK

Chris says… These apps are use­ful for try­ing to work out an ex­po­sure when us­ing a Lee Big Stopper or an­other high-den­sity neu­tral den­sity fil­ter which can be used to lengthen the ex­po­sure by up to 10 stops.

I use Long­Time Ex­po­sure Cal­cu­la­tor on my Ap­ple iPhone. Un­for­tu­nately this free app doesn’t have an An­droid ver­sion, but I think I have tracked down some­thing sim­i­lar that will do the trick on your Nokia Lu­mia 625. It is called Ex­posed, and it is avail­able through GooglePlay for An­droid de­vices. It’s also free, and looks like it is highly rated by those who have in­stalled it.

Find ex­actly the right ex­po­sure length with the help of a free phone app

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