Long Exposure Toolkit 4+

Andrew Offield

Designed for iPhone

    • 4.5 • 4 Ratings
    • $5.99

iPhone Screenshots


A Long Exposure Toolkit for DSLR photographers
• 10 great photography tools in one app!
• A versatile ND Calculator for Neutral Density filters
• A Light Meter
• A Timelapse Calculator
• Calculators for Stops and Exposure Value (EV)
• Calculators for Star Trail length & Moon size
• An Exposure Timer and a dual-action Torch
• A live feed of Flickr's Long Exposure photos showing their settings
• And over 70 great Long Exposure hints & tips!
• Get great results with our easy guided ND workflow

Long Exposure Toolkit helps you take beautiful artistic Long Exposure photos at any time of day!

A Long Exposure photo can have a shutter speed from a few seconds to many minutes or even hours. They're traditionally taken at dawn or in the evening when the low light allows the camera's shutter to stay open for longer.

But with one or more Neutral Density filters and the help of Long Exposure Toolkit you can easily take long exposure photos in broad daylight!

Just follow the ND Calculator's simple guided process to meter the scene and accurately calculate the camera settings that you'll need to use with your ND filters attached.

The sophisticated and versatile controls within the app enable you to easily modify any of your settings (ISO, Aperture or Shutter speed) and retain accurate exposure without having to remove your filters.

As well as the Neutral Density calculator the app includes several other useful tools and resources:

- An accurate Light Meter - find the correct shutter speed for any combination of ISO and aperture
- A Timelapse Calculator - calculate movie lengths, shooting times and storage space from shooting interval, frames per second and image size
- A Stops Calculator - find the difference between any two ISO's, shutter speeds or apertures
- An EV (Exposure Value) Calculator - find the EV for a group of camera settings or using the Light Meter
- A Star Trail calculator - find the length of star trails based on focal length, shutter speed, star declination and sensor crop factor
- Moon Size & Blur calculator - find the size and amount of blur of the moon based on focal length, shutter speed and sensor crop factor
- An Exposure Timer
- A dual-action Torch
- An inspirational live feed of photos from the Long Exposure groups on Flickr, showing the camera settings (ISO, Aperture and Shutter Speed) each photographer used
- And a library of over 70 valuable hints and tips for Long Exposure photography and for getting the most from the app

With Long Exposure Toolkit you'll soon be making professional artistic Long Exposure photos. At any time of day!

What’s New

Version 1.22

Updates for iOS 17 and iPhone 15

Ratings and Reviews

4.5 out of 5
4 Ratings

4 Ratings

SartreFan ,

Pretty good. Needs one fix

For some reason I have not been able to adjust the value on the CPL. It automatically goes back to 1.7. Other than that this is a very useful and varied app

Drmbhete ,


I tried two other ND calculator programs and they either weren't accurate or didn't have as many features. This is the one to buy.

Linz.W. ,

Best option on the App Store.

Does everything I need. Needed an exposure calc for ND filters and stop calculations past 30s. Yes, I could do it in my head, but this is faster. :)

App Privacy

The developer, Andrew Offield, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

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