5 stars: Absolutely must have for long exposures.
5 stars: Best app for ND Filter. I have tested some others. In all of them you can't change ISO or Aperture. Here you can take a test shot without Filter in any ISO or Aperture and then you can calculate shutter speed values as per your ND Filter as well as with any desired new values of ISO or Aperture.
5 stars: This is an excellent app. It is very simple to use with no learning video needed. I am not sure that the app gets the exposure right first time, but the light was changing and my test shot was probably a little off. So it was probably me that was at fault. A very useful tool for anyone doing long exposure photography. Thanks!
5 stars: downloaded this app just to say i loved reading the developer's comments. i ordered my first drone this morning and a set of filters. can't comment on the app yet, but I'll update once i use it. for now, 5 stars to help offset the \
5 stars: Used this for some night time shooting and the settings worked as hoped. Please remember you have to know how to set your test shot first if you want to get correct results. So this may not be the app for you if have not mastered that yet, but if you have then get it.
5 stars: Great FREE app. Note the word 'free' for anyone critical of this app. Makes life much easier when doing long exposures. I for one fully appreciate the time the developer has put in to this. Recommended.
4 stars: nice app, does what its supposed to do. on...