Privacy

Your kit stays on your device

The kit you build (camera, lenses, accessories, weights and any prices you type) is kept in this browser tab's session storage so it follows you between pages and tools. Nothing you enter is sent to us, and there is no account. Closing the tab clears it; “Start again” in the kit builder clears it sooner. The camera you last chose is kept the same way, in this tab only, so the next page and tool open on it.

The colour theme you pick in the footer is kept in local storage on this device so the next page opens in the same theme. It is never sent anywhere.

Links and files you make

A kit link you copy carries only the camera and lens identifiers from our catalogue. Your accessories, weights and prices are left out. A kit file you download includes them and stays on your device unless you share it. The optics calculators keep their settings in this tab; a setup link includes only a catalogue camera and lens and preset values, never a measurement you typed.

The photo tools

The tools that read photographs (camera details, location removal, which focal lengths you use) work entirely in your browser. Your photographs are not uploaded anywhere; the page reads them on your device and forgets them when you leave.

Measurement

We use two services to see which pages and tools people use: Plausible Analytics (Plausible Insights OÜ, European Union) and Google Analytics 4 (Google LLC, United States). They receive the page address without its query string or fragment, plus a small set of named actions such as running a calculation, sorting a list or following a link to a retailer.

Plausible measures without cookies and without any identifier that follows you between sites. Both receive technical connection information including your IP address. Your kit, weights and prices are never included.

Analytics and cookie choices

Plausible counts every visit without cookies. It may receive browser and device information and a referring page.

Google Analytics is run by Google, which receives the page address, the actions we measure on this site and browser and device information, and sets cookies that tell repeat visits apart. Its advertising features are off.

In the European Union, Iceland, Liechtenstein, Norway, the United Kingdom and Switzerland, and whenever we cannot tell which country a visit comes from, Google Analytics loads only after you choose Accept on the bar at the bottom of the page. Decline loads nothing from Google. Your choice is kept in this browser for six months, then the bar asks again.

Elsewhere, Google Analytics loads with each page unless you choose Decline. Cloudflare, which delivers our pages, tells your browser which country the visit comes from.

Wherever you are, Cookie choices at the bottom of any page, or the button below, changes your choice. Decline stops Google Analytics on this site in this browser and deletes its analytics cookies. If analytics was running, the page reloads to apply your choice. Decline holds on every page; outside the countries above it is kept until you change it.

Cookie choices

Reports you send

The report form sends your report, your reply address and any page or source you add through Cloudflare. Cloudflare Turnstile runs an automatic security check that never asks you to solve anything; it receives your browser and connection details to tell people from automated senders.

We keep each report in our contact inbox at Cloudflare for 12 months, then it is deleted automatically, and a copy goes to a private Discord channel our team reads. We use your reply address only to answer you, never for marketing. To stop floods of messages, the form counts reports from one connection or reply address for two hours, under a one-way code rather than the address itself. To see or delete a report you sent, ask through the same form and we will delete both copies.

Cookies and storage

Session and local storage stay on your device; clearing this site's data removes them.

Who else receives data

Google LLC for page and action measurement. Cloudflare, Inc. for the report form's security check and inbox, and Discord Inc. for the copy of each report our team reads. Plausible Insights OÜ for cookie-free measurement, hosted in the European Union. Amazon.com Services LLC, when your browser loads a product photograph from Amazon's image service or you follow a link to Amazon: Amazon receives the connection information needed and applies its own privacy notice once you arrive. The fonts are served from this site, so no font provider receives your address. If a display advertising network is ever added, this page will name it before the first advertisement is served.

If you are in the EEA or the UK

We do not sell or share personal information and run no profiling. You can ask what we hold, ask for correction or deletion, or object to measurement; because we hold no account or identifier for you, a request has to be matched to a page and a time. Google keeps measurement data for 14 months; Plausible keeps aggregates.

Links to other sites

A maker's link opens their site, with its own privacy policy, and carries no tracking parameters. An Amazon link carries our affiliate tracking id so a sale can be credited to this site; it carries nothing about you or your kit.

Facts from the makers' specification pages. How we check