Free camera tools for photography calculations, video settings, shoot planning, shutter count information and useful EXIF data. They are designed for photographers, videographers, camera buyers, sellers and creators who want practical answers in the browser.
If you are buying a used camera, selling your own kit, or just curious about the data stored inside your photos, the camera tools on 27tools can help you quickly check useful information in your browser.
Shutter count
A camera's shutter count can be a helpful indicator of how much use it has had. It is not the only thing that matters when buying or selling a camera, but it can give you useful context alongside the camera's condition, age, service history and overall wear.
The camera shutter count tools on 27tools are designed to extract available shutter information from compatible image files where that data is stored in the photo metadata.
Photo metadata
Digital photos often contain EXIF data, which can include details such as camera model, lens information, exposure settings, ISO, aperture, shutter speed, date taken and more. This information can be useful for learning from your own photography, checking file history, or confirming details about a camera or lens.
Used cameras
When looking at used cameras, especially online, shutter count and metadata can help you ask better questions. A low shutter count does not always mean a camera is perfect, and a high shutter count does not always mean it should be avoided, but it is another useful piece of information when comparing options.
Important note
Not every camera brand or file type stores shutter count data in the same way. Some images may not include shutter count information at all, especially if they have been exported, compressed, edited, or sent through apps that remove metadata. For the best chance of reading camera data, use an original image file taken directly from the camera.
Use the free camera tools below to plan photography and video settings, estimate shoot storage, check shutter count and inspect EXIF data.
Drop in an original Sony JPG or ARW file, read the metadata in your browser, and pull out the shutter count using the Sony maker-note data.
Check Your Shutter CountDrop in an original Canon CR3 file, read the metadata in your browser, and keep the full EXIF viewer available while the tool looks for a reliable shutter count field.
Check Your Shutter CountDrop in an original Nikon NEF file, read the metadata in your browser, and pull the shutter count from the Nikon maker-note data when the camera records it.
Check Your Shutter CountDrop in an original Fujifilm RAF file, read the metadata in your browser, and pull the shutter count from Fujifilm maker-note data when the camera records it.
Check Your Shutter CountEstimate near and far focus limits, total depth of field and hyperfocal distance from your format, lens, aperture and focus distance.
Calculate Depth of FieldCalculate an ideal video shutter speed from your frame rate and shutter angle, with 50Hz and 60Hz flicker guidance.
Calculate Shutter SpeedEstimate how long a memory card can record at a selected bitrate, or calculate the storage needed for a video shoot.
Calculate Recording TimeIf one of these tools helped you, feel free to support 27tools
Buy me a coffee