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Exposure Calculator

Name: Exposure Calculator
Availability: InStock
Rating: 1 (1 reviews)

Stop the guesswork during Golden Hour. Instantly calculate ND filter shutter speeds, manage crop factor equivalents, and master every shot with a professional-grade timer for landscape photographers.

Key Figures

Downloads

200

User Rating

1.0/5

Total Ratings

Publisher

Ashoke Mediratta

Master Every Long Exposure

Stop the guesswork and focus on your composition. Get precise technical calculations designed specifically for the dedicated landscape photographer.

Instant ND Filter Math

Eliminate complex mental calculations during the Golden Hour. Get the exact shutter speed for any filter density instantly to ensure a perfect exposure every time.

Integrated Exposure Timer

No more external stopwatches. For exposures longer than 4 seconds, launch a built-in timer to manage your Bulb Mode shots with professional precision.

The following screenshots and description are sourced directly from the app's official store listing and are the property of the app developer.

App Store

Screenshots

Exposure Calculator - Exposure Calculator app interface for calculating long exposure shutter speed with ND filters. — Exposure Calculator app interface for calculating long exposure shutter speed with ND filters.

Exposure Calculator - Mobile app screen showing a shutter speed calculation for a 10 stop ND filter — Mobile app screen showing a shutter speed calculation for a 10 stop ND filter

Exposure Calculator - Exposure Calculator app interface showing a countdown timer for long exposure photography — Exposure Calculator app interface showing a countdown timer for long exposure photography

Exposure Calculator - Focal length calculator screen showing fields for sensor size and 35mm equivalent focal length — Focal length calculator screen showing fields for sensor size and 35mm equivalent focal length

Exposure Calculator - Interface of the aperture equivalence calculator showing 35mm equivalent f-stop conversions for different sensor sizes — Interface of the aperture equivalence calculator showing 35mm equivalent f-stop conversions for different sensor sizes

Description

Exposure Calculator is an app that I developed to calculate the shutter time required for taking long exposures when using an ND (Neutral Density) filter. To use: - first expose your scene as you would normally, without an ND filter mounted - note the shutter speed required for a properly exposed photo - set this shutter speed value into the first window of the app - now select the ND filter density that you would like to use - you will see that the third window will display the new shutter speed for you to use when the ND filter is mounted - for exposures longer than 4 seconds you will have the ability to launch a popup timer to help you keep track of your exposure time Tip: If you are using a really dark ND filter, such as an ND1000, your camera will not be able to focus when you release the shutter. To get around this, first focus on the scene without the ND filter, then switch your camera into manual focus, then mount the ND filter. Your camera will use the current set focus and not try to refocus. The app also includes two other calculators, one to calculate the full frame equivalent of a lens on a crop sensor body, and the second to calculate the full frame equivalent of an aperture (f-stop) on a crop sensor body.