Photography calculators you can put on your own blog, course or club page with one copy-paste snippet. They work on any site, cost nothing and carry a small credit link back to CAPTD.
Each widget is the same calculator as on CAPTD, running in an iframe on your page. It sets no cookies, stores nothing in your visitors' browsers and loads nothing from anyone else — the only thing we count is which site it was shown on.
The code works as pasted. The short script under the iframe lets the widget fit its own height; without it the iframe stays at a fixed height.
Near and far limits of sharp focus, total depth of field and hyperfocal distance for any focal length, aperture, focus distance and sensor format. See the full tool.
Free to use on any site. Please keep the credit link.
More calculators coming.