Manual Flash Calculator

3.5.0

National Photographic Services

4.33

187 reviews

10,000+
Downloads

Free

A tool for photographers who prefer manually working with flash guide numbers

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4.33 · 187 reviews · 10,000+ downloads

Manual Flash Calculator offers precise, manual guide-number calculations for photographers seeking consistent flash results. With 10,000+ total downloads and 100 in the last 30 days, it’s a trusted Free Edition that’s ad-free and network-free, with an optional Pro upgrade for unlimited configurations.

Pros & Cons

Ad-free Free Edition for distraction-free use
No network connectivity required, preserving privacy and speed
Wide aperture and ISO ranges for varied lighting scenarios
Optional Manual Flash Calculator Professional for unlimited configurations

Lacks built-in exposure meters and camera integration
Focused on manual flash calculations, not a full studio lighting suite
Limited to flash calculations without broader lighting tools or features

About Manual Flash Calculator

Manual Flash Calculator is a photography app developed by National Photographic Services.

How many times has Manual Flash Calculator been downloaded?

Manual Flash Calculator has been downloaded 39 thousand times. In the last 30 days, the app was downloaded 100 times.

What is the rating of Manual Flash Calculator?

Manual Flash Calculator is rated 4.33 out of 5 stars, based on 190 ratings.

Is Manual Flash Calculator free?

Manual Flash Calculator is free to download. The APK download size is 1.14 MB. The latest version available is 3.5.0. The last update was on August 8, 2026.

What are the requirements for Manual Flash Calculator?

Manual Flash Calculator requires Android 5.0+ or higher. The app has a content rating of Everyone. The app has been available on Google Play January 2014.

Description

Manual Flash Calculator (Free Edition) provides a handy utility for accurately determining flash-subject distance. It's quick and easy to use for tricky lighting situations and backgrounds, where TTL auto-flash can often struggle.

This app is ad-free, and requires no special device permissions or network connectivity.

Key Features:
• Aperture range F/1.2 to F/22
• ISO range ISO50 to ISO6400
• Flash output ratios to 1/256 power
• Flash exposure compensation to 5 EV
• Zoom support for unlimited guide settings
• Power increments in 1/3, 1/2 or Full stops
• Macro closeup distances (in and cm)

Set the guide number/zoom coverage, power-ratio limit, power adjustment interval, and guide number units for your flash. (You can find this information from the guide number table in your flash user manual).

If you own more than one flash unit, please consider supporting this project by upgrading to Manual Flash Calculator Professional. It supports saving an unlimited number of flash configurations. And it costs less than the price of a cup of coffee!

Recent changes:
Update to support SDK 37

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More data about Manual Flash Calculator

Price	Free to download
Total downloads	39 thousand
Recent downloads	100
Rating	4.33 based on 190 ratings
Ranking	Not ranked
Version	3.5.0
APK size	1.14 MB
Number of libraries	15
Designed for Android	5.0+
Suitable for	Everyone
Ads	NO ads

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Alternative downloads for the Manual Flash Calculator app

Manual Flash Calculator compared with similar apps

Common keywords of similar apps

Guide Power Number Free Range Zoom Unlimited Flash Manual Calculator Support

Keywords missing from this app

Exposure Light App Photography Time Camera Meter Tools Mode Focus Distance Aperture Calculate Features Field Shutter Flashlight Stop Professional Film Metering Macro Speed Long Settings Hour Photographers Sensor Alerts Photo Calculators Perfect Cameras Screen Device Location Calculations Led Custom Level Display Zone Readings Powerful Depth Ev

Google Play Rating history and histogram

Rating history

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100

Downloads over time

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Manual Flash Calculator has been downloaded 39 thousand times. Over the past 30 days, it has been downloaded 100 times.

Changelog of Manual Flash Calculator

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Developer information for National Photographic Services

National Photographic Services

nationalphotographicservices@gmail.com

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Comments on Manual Flash Calculator for Android

★★★★☆ A Google User · Jan 19, 2015

Really great What about the settings for the zoom?

★★★★☆ A Google User · Mar 30, 2015

I DID love it... But a simple checkbox choice between zoom or non-zoom would have been much better than "set the same guide number for each zoom position.". Yeah, nah. Suggestion: a list: First entry in the old style - a simple slider for GN - max/min defined by user. Followed by a number of (standard and) user defined entries for zoomable units. This would allow those of use with numerous strobes to easily select between the ones we can't zoom with the old GN slider, and the ones we can zoom by selecting a different strobe definition from the list. Preferably also allow us to define the focallenght for the various zoom GN rather than have to pick from an assumed set.

★★★★☆ Chris Hunt · Oct 22, 2021

Relatively new to flash photography but in my rather limited experience 8 know the distance of the flash to subject it's the power setting for the flash that's variable. I realize you can move the sliders to get the distance you want but wouldn't it be easier to set the distance as a fixed value and have the flash power as the variable?

★☆☆☆☆ Matthew Johnson · Aug 13, 2015

Other screens Using an LG g3, and can't go to any other screen, saw the entry about lower left button, but that doesn't work on this phone.

★★☆☆☆ Laura Connolly · Dec 14, 2017

You can only have one custom guide number. Deleting others won't let you add more. What's the point? Hey thanks for your reply :) adding more doesn't work it just replaces the first one you added.

Google Play Rankings for Manual Flash Calculator

This app is not ranked

Technologies used by Manual Flash Calculator

1 permissions · 15 libraries

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Trust & Safety: Low-risk permissions footprint with a single DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION. No required network access and an ad-free experience, contributing to a privacy-conscious and user-friendly profile.

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