F-Stopper

A simplified, intuitive calculator / timer, for the photographer chasing the perfect long exposure.
Free to Download.
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F-Stopper

A simplified, intuitive calculator / timer, for the photographer chasing the perfect long exposure.
Free to Download.
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Normal exposure / Long exposure.

See the difference a long exposure can make in your images by sliding the handle left and right.

A thought out approach to long exposure images.

Inspired by the rangefinders minimalistic approach to photography, F-Stopper provides a timeless set of essential components needed for perfect long exposures, giving the photographer an extremely fast and intuitive workflow. All you need is a camera, and at least one neutral density filter to reduce the amount of light that can enter the lens. F-Stopper does the calculating and keeps time for you.

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Your camera should be in bulb mode, then simultaneously open the shutter on the camera, and start the timer in F-Stopper.

During really long exposures it is perfectly safe to take a call or close the F-Stopper app. If the app is closed when the exposure ends, it will send you an on screen notification.

Start capturing awesome images.

With the help of F-Stopper you and your camera can capture stunning long exposure images like these.

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The best of F-Stopper.

The main feature we think make this the best app for calculating and timing your long exposures.

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Fast Workflow.

Designed for photographers by a photographer, that likes nothing less than unnecessary steps to the end goal.

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Timeless Design.

Colours used in photographic tools for decades, make F-Stopper seem more an integral part of your photo kit than your phone.

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Fire & Forget.

When shooting really long exposures, it's fine to close the app. F-Stopper will send you a notification when it's time.

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Optional Alarm

Audible alarm on / off, just a single tap on the bell in the centre of the timer to choose. F-Stopper remembers your choice.

Download now, it's Free!

F-Stopper requires iPhone running IOS 9 or later.

Copyright 2016 Gary Simpson of Doobox Software.