NDExposure

Great app until I contributed a beer! Now it just closes despite numerous attempts. Not a great result.

Good free app that works well with a range if ND filter strengths

Does the job of calculating but I DO NOT like the sarcastic popup when you tap on the Seconds readout. It's an absolute no brainer that this should initiate a timer. Sure I could fiddle around with my phone or go through the tedium of setting the specified time in the camera for every take, but if you are a photographer you'll know that using a cable release is preferred and this lends itself to performing the timed exposure manually using the 'Bulb’ setting; i.e. set and forget regardless of changing light conditions. There are several other free Apps which provide the OBVIOUS timer facility without the sarcasm. You lose stars.

I wouldn't be without this app. Loved the previous version of this app but the new version has lost the countdown timer. Real shame as the countdown timer was a great feature. Please bring back this functionality in the next release.

Great app. Simple and clear display.

Perfect for finding correct new exposure value in a simple to use interface... Timer is very useful too, now I can walk away from my camera and still know how long to go before the exposure is finished.

Very elegant and simple to use. I wish all apps were as functional. Integral timer function is really useful too.

Perfect little app. Put in your ND filter rating(10stop or 6 stop etc) set your shutter speed and the adjusted time is set. Even has count down timer so you know when the time is up so you and close the shutter on the camera. Brilliant, simple and free.