# How to Check Camera Shutter Count on Mac (Nikon, Sony, Pentax, Canon)

> Check your camera's shutter count on a Mac. Which brands store it in the photo file, which do not, and the free Terminal method that reads it in one command.

*Published: 2026-08-23* · *11 min read*

Canonical URL: https://timestampcamera.net/photo-guides/how-to-check-camera-shutter-count


**Quick answer:** On a Mac, the shutter count is read from the camera's own photo file with **ExifTool** in Terminal, in one command. It works well for **Nikon** and **Pentax**, partly for **Sony**, and essentially **not at all for Canon**, which does not write a usable actuation count into its files. Just as important: the count lives in the **maker note**, and almost every editing app deletes that section, so you need a file straight off the memory card. Here is the full picture, brand by brand, plus what to do when your camera is one of the ones that stays silent.

Shutter count is the odometer of a camera. Every time the shutter fires, an internal counter goes up. Bodies are rated for a certain number of actuations before the mechanism is expected to need service, which is why the number matters most in two moments: when you are buying a used camera, and when you are selling one and want to prove it is barely used.

The frustrating part is that there is no single, universal way to read it. What follows is the set of methods that hold up on macOS.

## First, the thing that trips almost everyone up

The shutter count is not part of standard EXIF. Standard EXIF holds the capture date, exposure, ISO, camera make and model. The shutter count sits in the **maker note**, a manufacturer-private block that each brand structures its own way.

That distinction has a very practical consequence: **the maker note is fragile.** Standard EXIF usually survives an edit. The maker note usually does not.

We tested this on five real camera files. Every one still carried its full standard EXIF, between 50 and 68 tags, including make, model and capture date. Every one had lost its maker note entirely:

| File from | Standard EXIF | Maker note |
| --- | --- | --- |
| Nikon D5200, saved from Photoshop | 59 tags | gone |
| Nikon D300S, saved from Photoshop | 67 tags | gone |
| Nikon D300S, saved from Photoshop | 68 tags | gone |
| Canon EOS 40D, saved from GIMP | 50 tags | gone |
| Canon scanner output | 16 tags | gone |

So if you open a photo, run any shutter count check, and get nothing back, the answer is very often "this file has been edited", not "this camera does not record it".

**What to use instead:** a JPEG or RAW file copied **directly from the memory card**, that has never been opened and re-saved by an editor, never sent through WhatsApp, Instagram or email, and never exported from Photos. On a used-camera purchase, ask the seller for exactly that: an untouched file straight off the card.

## Method 1: ExifTool in Terminal (the reliable Mac method)

[ExifTool](https://exiftool.org/) is a free, open-source metadata tool by Phil Harvey. Among photographers it serves as the reference implementation for reading maker notes, covering Canon, Nikon, Sony, Pentax and many others. There is an official macOS package.

**Install it:**

1. Go to exiftool.org and download the macOS `.pkg` file.
2. Open the package and follow the installer.
3. It installs the `exiftool` command into `/usr/local/bin`.

**Read the count:**

1. Open **Terminal** (Applications > Utilities, or Spotlight and type Terminal).
2. Type this, including the trailing space:

```
exiftool -ShutterCount -ImageCount -MechanicalShutterCount 
```

3. **Drag the photo file onto the Terminal window.** macOS pastes the full path for you, which saves fighting with spaces in filenames.
4. Press **Return**.

If the camera records a count and the maker note survived, you get something like:

```
Shutter Count                   : 48213
Image Count                     : 48213
```

If nothing prints, that is the answer for that file: either the brand does not store it, or the maker note was stripped. Try an untouched file from the card before concluding anything about the camera.

**Want to see everything the file holds?** Run `exiftool -a -G1 -s` followed by the file path. That dumps every tag with its group, which is a good way to confirm whether a maker note is present at all.

## Method 2: A Mac app, if you would rather not use Terminal

There are paid macOS apps that wrap the same idea in a window, and some read the count over USB directly from the camera rather than from a file. Reading over USB is genuinely useful for Canon bodies, since it asks the camera instead of the photo.

Two honest caveats before you buy one:

- **Model support is specific.** These apps list exactly which bodies they support. Check that your model is on the list before paying, not after.
- **For Nikon and Pentax, an app will not tell you more than the free Terminal command does**, because both write the count into the file where ExifTool can already read it.

## Method 3: What macOS shows on its own

Not much, and this is worth knowing so you do not go hunting.

- **Preview** shows an Inspector (Tools > Show Inspector, then the Exif tab) with the standard fields: camera, lens, exposure, date. No shutter count.
- **Photos** shows an info panel with similar standard fields. No shutter count.
- **Finder's** Get Info shows file-level details only.

None of them read maker notes. This is why the Terminal method exists.

## Brand by brand: who actually stores it

This is where most shutter count articles get vague. Here is what the camera files really contain, based on ExifTool's published maker note tag tables.

### Nikon: yes, reliably

Nikon is the best case. Its maker note carries several counters:

- **ShutterCount** (tag `0x00a7`), which ExifTool documents as including "both mechanical and electronic shutter activations for models with this feature"
- **MechanicalShutterCount** (tag `0x0037`), mechanical actuations only
- **ImageCount** (tag `0x00a5`), total images captured

On modern bodies with an electronic shutter, the difference between the first two is meaningful: total actuations versus wear on the physical mechanism. If both print, the mechanical number is the one that speaks to the shutter's remaining life.

### Pentax: yes, with two caveats

Pentax stores **ShutterCount** at tag `0x005d`. ExifTool's own note on it is worth quoting, because it changes how you read the number:

> "May be reset by servicing! Also, does not include shutter actuations for live view or video recording"

So a Pentax count can understate real use in two ways: a service visit may have zeroed it, and live view and video shots may never have been counted. Treat it as a floor, not a total.

### Sony: sometimes, depending on the body

Sony writes shutter counts, but where and whether it is valid varies by generation. ExifTool's tables show **ShutterCount** in more than one place, each carrying a model-specific warning: one is marked "only valid for some DSLR models", another is "not valid for the A450, A500 or A550", with a separate tag that is for "A450, A500 and A550 only".

Practical translation: run the command, and if a number comes back, look up whether your specific body is one of the models the tag is valid for. A number that prints is not automatically a number that means what you think.

### Canon: effectively no

This is the disappointing one, and it is also the case most people are searching for.

Canon's maker note contains **FileNumber** at tag `0x0008`. That tag holds an image sequence number, the counter behind filenames like `IMG_4312`, and it is **not** a shutter actuation count. It resets, it can be set to manual or continuous numbering in the menu, and it tells you nothing reliable about shutter wear. Plenty of "shutter count checkers" quietly show you this number anyway.

ExifTool's tables do list a real ShutterCount for Canon, but only inside a 1D Mark III specific section, and with an explicit warning that it "may be valid only for some 1DmkIII copies, even running the same firmware".

So for the overwhelming majority of Canon bodies, **the count is not in the photo file at all.** No web tool, no Mac app reading a JPEG, and no Terminal command can extract something the camera never wrote. Anyone claiming otherwise is either showing you FileNumber or guessing.

**The workable route for Canon owners:** use a utility that queries the camera over USB rather than reading a file, or have the count read during a service visit. On a used purchase, if the seller cannot produce a USB-read count, weigh the body's condition, the shutter sound, and the sensor and mount wear instead.

## Summary table

| Brand | In the photo file? | Tag | Watch out for |
| --- | --- | --- | --- |
| **Nikon** | Yes | `0x00a7`, `0x0037`, `0x00a5` | Mechanical vs total on electronic-shutter bodies |
| **Pentax** | Yes | `0x005d` | Reset by servicing; excludes live view and video |
| **Sony** | Sometimes | model-dependent | Validity varies by body generation |
| **Canon** | Effectively no | `0x0008` is FileNumber only | FileNumber is not a shutter count |

And for every brand: the file must still have its maker note, which means straight off the card, never edited.

## How to read the number once you have it

A shutter count on its own means little without context. Camera bodies carry a manufacturer durability rating, and those ratings differ enormously by class: entry-level bodies are rated far lower than professional ones. Check the rating for your exact model on the manufacturer's specification page, then compare.

Three things worth keeping in mind:

- **A rating is an expectation, not an expiry date.** Plenty of shutters outlive their rating by a wide margin, and a few fail well before it. The rating is a statistical figure.
- **A shutter is a replaceable part.** A high count is a price negotiation point, not automatically a reason to walk away, especially on a body that is otherwise in good condition.
- **Low count is not automatically good.** A camera that sat unused in a damp cupboard for six years can be in worse shape than one that was used steadily. Look at the whole body.

## What this has to do with the rest of a photo's metadata

Shutter count is one of the more obscure things hiding inside a photo file, but it is not the only one. The same maker note and EXIF block that stores it also carries the capture date, GPS coordinates, lens, exposure settings, and often the camera's serial number.

If you want to see what a photo of yours is carrying, our free [EXIF viewer](/exif-viewer) reads the standard metadata in your browser, with nothing uploaded. To find out what body took a photo, the [camera detector](/what-camera-took-this-photo) reads make, model and lens. And if you are about to sell a camera and post sample shots publicly, remember those files can carry your location and serial number: the [EXIF remover](/exif-remover) strips them before you post.

## Frequently asked questions

**Can I check shutter count from a photo online, without installing anything?**
For Nikon and Pentax the number is in the file, so in principle yes. In practice the file has to be an unedited original from the memory card, which is exactly the file most people no longer have. And for Canon, no tool can read a number the camera never wrote.

**Why does my Nikon show two different counts?**
ShutterCount includes electronic shutter activations on bodies that have one; MechanicalShutterCount counts only the physical mechanism. On a mirrorless body used a lot in silent mode, the two can differ substantially.

**My file gives no result at all. Is my camera broken?**
Almost certainly not. The most common cause is a stripped maker note from editing or sharing. Test with a file copied directly from the card.

**Does the count include video?**
Not consistently. Pentax's own tag note says live view and video actuations are excluded. Treat video-heavy use as under-counted.

**Can shutter count be faked?**
The number in a file can be edited, like any metadata. For a used purchase that matters, prefer a count read from the camera over USB in front of you rather than a number in a JPEG the seller emailed.

## Bottom line

On a Mac, one Terminal command with ExifTool answers the question for Nikon and Pentax, sometimes for Sony, and not for Canon. Before you trust an empty result, check that your file still has its maker note by using an original straight from the card, because editing software silently removes exactly the block the count lives in. And when you do get a number, read it against your specific model's durability rating rather than against a general rule of thumb.