Privacy Policy

Who is responsible for this site

Axen Works is run by one person: Ulisses Balbino, a commercial film director based in Sao Paulo, Brazil. There is no company, no staff and no data department. For anything on this page, including a request to delete something, the address is ulisses@openyourais.com and I am the one who reads it.

The short version

Everything you type into a calculator here is processed by your own browser and never reaches a server, because there is no server to reach. This site sets no cookies of its own, runs no analytics product, has no accounts, no newsletter and no login, and asks you for nothing. The two things worth knowing about are the server logs of the company that hosts the files, and advertising cookies from Google when advertising goes live. Both are explained below.

What the calculators do with what you type

Nothing leaves your device. Every page here is static HTML with a small amount of JavaScript that runs locally in your browser. Card capacities, bitrates, durations, timecodes and shutter angles you enter are held in memory while the page is open and are gone the moment you close the tab. The site does not use browser storage of any kind for them, so nothing is written to local storage or to a cookie either. There is no upload, no autosave and no history.

The same is true of the contact page. The form there does not transmit anything. It assembles a message inside your browser and hands it to your own email application, and you press send from there. Once you email me, your message and your address are in my inbox, which is covered further down.

Cookies

Axen Works sets no cookies of its own. There is nothing to log you into, nothing to remember and no preference to store, so there is no first party cookie on this site at all.

Third party cookies are a different matter, and they arrive with advertising. That is the next section, and it is the section that matters if you care about tracking.

Advertising and Google AdSense

Current status on 22 August 2026: advertising is not live on this site yet, and no Google advertising code is loaded on these pages. You do not have to take my word for it. Open the source of any page on this site and look for a script tag loading from googlesyndication.com or pagead2. There is not one, on any of the twenty pages, and the only place those two names appear anywhere on this site is in the sentence you are reading. The plan is for the site to be funded by advertising through Google AdSense, so everything below is written in advance and applies from the moment that code goes live. When it does, the date at the top of this page changes and this paragraph changes with it, in the same edit that adds the code. I would rather tell you what is coming than surprise you with it.

When advertising is running on this site, the following applies.

• Third party vendors, including Google, use cookies to serve ads based on a visitor's prior visits to this website and to other websites.
• Google's use of advertising cookies enables Google and its partners to serve ads to you based on your visit to this site and other sites on the internet.
• You can opt out of personalised advertising from Google in Google My Ad Center, which is also reachable at google.com/settings/ads.
• You can opt out of a wider group of third party vendors using cookies for personalised advertising at aboutads.info/choices, and in Europe at youronlinechoices.eu.
• Google's own explanation of what it collects from sites that use its services is at How Google uses information from sites or apps that use our services. The cookie detail is in How Google uses cookies in advertising, the business detail is at Google Ads Services, and the whole thing sits under the Google Privacy Policy.
• Opting out of personalised ads does not remove advertising. It makes the advertising you see less targeted, which is the point.

Two limits are worth stating clearly. First, I do not control what a third party advertising vendor does with a cookie it sets, and I cannot read those cookies from here either. Their policies govern them, and the links above are where those policies live. Second, nothing you type into a calculator can ever reach an advertiser, because it never leaves your browser in the first place. There is no path from the number you entered to an ad.

If you are in the European Economic Area, the United Kingdom or Switzerland, a consent message has to be shown before personalised advertising cookies are used, through a consent management platform certified by Google. There is no such message on this site today, and that is not an oversight. There is no advertising code on these pages, so no advertising cookie can be set, so there is nothing to ask you about. A banner asking permission for something that is not happening would be theatre, and it would teach you to click through the ones that matter. The certified consent platform goes in as part of the same change that adds the advertising code, before the first ad request leaves your browser rather than after it. When it is there, your answer is respected and you will be able to change it.

Analytics

This site runs no analytics product. There is no Google Analytics tag on these pages, and no other measurement script either. If you check the source of any page, you will find one stylesheet and a few small calculator scripts, and nothing that reports back.

The only reporting I use is Google Search Console, which is different in kind. It shows me aggregate information from Google's own search logs, such as which search queries this site appeared for and how many people clicked. It does not place anything in your browser, it does not follow you around the site, and it tells me nothing about you as an individual.

If Google Analytics is ever added, this section will say so before it happens, along with the date. For completeness, so you know what would change: Google Analytics sets its own cookies or similar identifiers to distinguish one visit from another, and it processes technical data such as your approximate location derived from your IP address, your device and browser, the pages you opened and how you arrived. You can block it everywhere with the Google Analytics opt out browser add on, which works whether or not any particular site uses it.

Hosting and server logs

The files that make up this site are hosted on Vercel, on their free plan. Like every web host in existence, Vercel processes the technical information your browser sends when it asks for a page, which includes your IP address, your user agent string, the address of the page requested and the time of the request. That processing is what makes delivering the page possible at all, and it happens before any of my code runs. Vercel's own privacy policy covers what they do with it. I do not add tracking on top of it and I do not build profiles from it.

What personal data actually exists

Being specific is more useful than being reassuring, so here is the complete list.

• Email you send me. If you write to me, I have your email address, your name if you signed it, and whatever you wrote, in my mailbox. That is a normal email conversation and it exists because you started it. I use it to answer you and to fix whatever you reported. I do not add it to a mailing list, because there is no mailing list, and I do not sell it or pass it on.
• Host request logs, described in the section above, held by Vercel rather than by me.
• Advertising cookies, once advertising is live, set and read by Google and its vendors rather than by me.

That is everything. No profile of you exists on this site, because there is no database on this site.

Your rights under the GDPR

If you are in the European Economic Area or the United Kingdom, data protection law gives you a set of rights over personal data about you. They apply to the small amount described above, and I will honour them regardless of where you happen to live, because running two standards would be silly.

• Access. Ask what I hold about you and get a copy.
• Rectification. Ask me to correct something that is wrong.
• Erasure. Ask me to delete it. See the next section for exactly how.
• Restriction and objection. Ask me to stop using it, including objecting to any processing based on legitimate interests.
• Portability. Ask for it in a form you can take elsewhere.
• Withdrawing consent. Where processing rests on consent, such as personalised advertising cookies, you can withdraw it at any time, and doing so does not affect what happened before you withdrew it.
• Complaint. You can complain to your national data protection authority. You do not need my permission and you do not have to talk to me first.

The legal bases involved are short: legitimate interests for delivering the pages and keeping the site running securely, consent for advertising cookies where consent is required, and legitimate interests for replying to an email you chose to send me.

How to ask for your data to be removed

Send an email to ulisses@openyourais.com with the word delete in the subject line, from the address you want removed. You do not have to explain why, and you do not have to be polite about it.

What happens next: I delete the correspondence from my mailbox, including the sent copies, and I reply once to confirm it is done. I aim to do this within a few days and in any case within one month, which is the limit the GDPR sets. If deleting the message would mean losing a correction to a published figure, I will keep the corrected figure and the source, because that is now part of a public page, and delete everything that identifies you.

Two things I genuinely cannot delete for you, and I would rather say so than pretend. Host request logs are held by Vercel under their own retention rules, so those go through them. Advertising cookies live in your browser and belong to the vendor that set them, so you remove those by clearing your cookies or by using the opt out links above.

Brazil, California and everywhere else

I am based in Brazil, so the Lei Geral de Protecao de Dados applies to me. Its rights are close to the ones listed above, and the same email address serves for them. If you are in California, the same request route covers the right to know, the right to delete and the right to opt out of the sale of personal information, which is easy to honour here because there is nothing to sell and no sale has ever happened.

Children

This site is a set of technical calculators for video production. It is not directed at children, it has no accounts, and it does not knowingly collect personal information from anyone, children included. If you believe a child has sent me personal information, write to me and I will delete it.

Links to other sites

This site links out to manufacturer and platform documentation constantly, because naming sources is the entire point of it. Those sites have their own privacy practices and this policy does not cover them. The same is true of any advertisement, which takes you to an advertiser's site once it exists.

Security

The site is served over HTTPS. Because there is no database, no login and no user content, the usual catalogue of things that leak from a website does not exist here. Email, on the other hand, is ordinary email: do not send me anything confidential that you would not put on a postcard.

Changes to this policy

When this policy changes, the date at the top of this page changes with it. Anything material, such as advertising going live or an analytics tool being added, gets described in the section it belongs to rather than slipped in quietly. The whole reason this page states what is coming before it arrives is so that no change here is ever a surprise.

Contact

Questions about privacy, or a request under any of the rights above, go to ulisses@openyourais.com. The contact page has more on what happens to a message once you send it.