Drop a NEF file from your Nikon D300S and get the exact mechanical shutter actuation count in seconds — processed entirely in your browser, never uploaded anywhere.
Check Shutter Count →The Nikon D300S (2009) was the definitive DX-format semi-professional DSLR of its era. It combined a rugged magnesium alloy body with a 12.3 MP CMOS sensor, Nikon's acclaimed 51-point AF system, 7 fps burst rate, and dual CF/SD card slots. The D300S was the first Nikon DSLR to offer 720p video recording. The mechanical shutter is rated at 150,000 actuations.
| Camera | Type | Sensor | Rated Shutter | NEF Tag |
|---|---|---|---|---|
| Nikon D300S | DSLR | 12.3 MP DX (APS-C) | 150,000 | 0x00A7 |
| Nikon D300 (predecessor) | DSLR | 12.3 MP DX (APS-C) | 150,000 | 0x00A7 |
| Nikon D500 (successor) | DSLR | 20.9 MP DX (APS-C) | 200,000 | 0x00A7 |
| Shutter Count | % of Rated Life | Assessment |
|---|---|---|
| 0 – 15,000 | < 10 % | Very low use — near new condition |
| 15,000 – 50,000 | 10 – 33 % | Low use — plenty of life remaining |
| 50,000 – 100,000 | 33 – 67 % | Moderate use — typical for enthusiast photographers |
| 100,000 – 135,000 | 67 – 90 % | Heavy use — budget for eventual shutter service |
| 135,000 + | 90 %+ | Near or past rated life |
The D300S was popular among sports and wildlife enthusiasts who appreciated its fast AF and burst rate. At current used prices, it remains excellent value for DX shooters.
The Nikon D300S stores the mechanical shutter count in NEF MakerNote EXIF tag 0x00A7 (decimal 167). This is the standard Nikon shutter count field, used identically across all Nikon DSLRs and Z-series mirrorless cameras. ShutterCount reads this tag directly in your browser — no encryption processing is needed.
Shoot a NEF frame and drop it into shuttercount.app. The count is read from MakerNote tag 0x00A7 in your browser, instantly and privately.
Nikon rates the D300S at 150,000 actuations. The same rating applies to the original D300.
The D300S (2009) adds 720p video recording and a dual CF/SD card slot over the D300 (2007). Both share the same 12.3 MP sensor, 51-point AF system, and 150,000-actuation shutter rating.
Only Nikon authorised service centres can reset the hardware counter. Always verify from an original NEF file, not a screenshot or JPEG.