James Wilson
The calculators provide reliable quick answers for field work without requiring any account setup or payment.
Questions about ExposureTools
What is ExposureTools?
ExposureTools provides a suite of seven free, browser-based calculators for photographers, including StarCalc for star-exposure limits, PrintCalc for print DPI, and LapseCalc for timelapse planning. The site is built and maintained by an individual photographer operating as frotography, and it runs entirely in the web browser without requiring a sign-up or account creation.
What specific calculators are included in the toolkit?
The toolkit includes seven specific calculators: StarCalc, PrintCalc, LapseCalc, NDCalc, LightCalc, DofCalc, and IdeaCalc. Each tool is designed for a single purpose, such as converting megapixels into print DPI with a crop preview or timing golden hour and blue hour for any location.
What are the pricing terms for using the calculators?
The site is completely free to use with no account, trial, or paywall required. It is supported by unobtrusive advertising and the occasional tip, ensuring that the tools remain accessible without any hidden costs.
Do the tools work offline?
Once a page has loaded, all calculations run entirely on the user's device, allowing the tools to keep working even when the user loses signal in the field. Users can add the site to their home screen for quick access while out of signal.
How do I get started with the tools?
No account or sign-up is needed to start calculating; users simply open the page in any modern web browser on a phone, tablet, or computer. There is nothing to install, and the interface loads in well under a second.
Who builds and maintains ExposureTools?
The site is built and maintained by frotography, an independent photographer who grew the project from a personal frustration with juggling half-remembered rules of thumb and clunky apps in the field.
How accurate are the calculations?
The tools aim to be accurate and field-tested, but they are described as guides rather than guarantees, so users are advised to sanity-check critical shots against their own results.
What do reviewers praise about the site?
Reviewers praise the clean interface, fast loading times, and the ability to get a clear answer in seconds, whether standing in the dark under the Milky Way or planning a shoot from the sofa.
What mathematical methods are used for the calculations?
The site uses plain, well-documented formulae, such as the NPF rule for star exposure and a standard solar-position algorithm for sun times, ensuring transparency in how the numbers are generated.
How is user data handled?
The site includes a privacy policy that details how analytics and advertising cookies are handled, noting that nothing entered is uploaded or stored on their servers.
How does the business handle user feedback?
Feedback from photographers who use the tools is stated to be what keeps them sharp, with the team genuinely reading every message regarding bug reports, corrections, and suggestions.
What is the official website of ExposureTools?
The official website of ExposureTools is exposuretools.net.
How is ExposureTools rated on Trustburn?
On Trustburn, ExposureTools has a rating of 4.2 out of 5 based on 5 reviews.
AI-generated from reviews on this page. Verify anything important with the company directly.
Emily Chen
ExposureTools provides six calculators for photographers, including StarCalc for star trailing and DofCalc for depth of field. The tools run in the browser without accounts and work offline. They are free, though supported by ads. The suite includes guides for various photography styles, offering practical utility for field calculations without complex software requirements.
David Miller
ExposureTools offers a surprisingly wide range of specialized calculators for photographers, covering everything from star trailing limits to timelapse planning. StarCalc handles the NPF rule for night sky exposures, while NDCalc adjusts shutter speeds for neutral density filters. LightCalc assists with timing golden and blue hours, and PrintCalc translates megapixels into print resolution with crop previews. LapseCalc plans frames and storage needs, and DofCalc determines depth of field and hyperfocal distance. The suite is built by an independent photographer who understands the frustration of juggling clunky apps in the field. Each tool is focused and single-purpose, delivering clear answers in seconds. The interface is clean, with no dark patterns or forced accounts. Everything runs locally in the browser, meaning data privacy is maintained as nothing is uploaded to servers. The tools are free and supported by unobtrusive advertising. Field guides accompany the calculators, offering deeper insights into gear selection and post-processing. While the disclaimer notes they are guides rather than guarantees, the accuracy seems solid. The ability to add the site to a home screen enhances accessibility. Feedback mechanisms are present, encouraging users to report bugs or suggest new cameras. This comprehensive approach covers the essential mathematical needs of landscape, astro, and fine-art photographers without requiring expensive software subscriptions.
Sarah Jenkins
The convenience of having these tools run directly in the browser is notable. There is no need to download an application or create an account, and since the calculations work offline once loaded, they remain accessible even when signal is lost in remote locations.
Liam Henderson
These calculators are available immediately without any signup or payment, making them perfect for quick adjustments while out shooting in the field.
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ExposureTools provides free online photography calculators that run in a web browser without sign-up and work offline. The toolkit includes StarCalc for applying the NPF rule to find the longest star-exposure before trailing, PrintCalc for converting megapixels into print DPI with a crop preview, and LapseCalc for planning timelapse frames, storage and clip length. Additional tools cover long-exposure shutter speeds for neutral-density filters, golden hour and blue hour timing, and depth of field with hyperfocal distance calculations. The site is built and maintained by an individual photographer operating as frotography.
- Website
- exposuretools.net
- Categories
- Photography