Drop an .X3F file from your Sigma SD Quattro H and get the exact shutter actuation count instantly — processed entirely in your browser, never uploaded anywhere. X3F is fully supported in shuttercount.app — no extra tools needed.
Check Shutter Count →The Sigma SD Quattro H (2016/2017) is the larger-sensor sibling of the SD Quattro, using an APS-H format Foveon X3 Quattro sensor (26.6×17.9 mm) that sits between APS-C and full-frame in size. This larger sensor delivers approximately 51 MP effective resolution compared to 29 MP on the APS-C SD Quattro, while retaining the same unique three-layer colour capture technology that gives Foveon images their characteristic sharpness and colour accuracy at low ISO. The SD Quattro H uses Sigma’s SA-mount (with SA→EF adapter support), shoots X3F RAW files, and requires Sigma Photo Pro for full-quality RAW conversion. Sigma does not publish an official shutter rating; the estimated lifespan is approximately 150,000 actuations.
| Model | Sensor Size | Effective MP | Est. Shutter Life | RAW Format |
|---|---|---|---|---|
| Sigma SD Quattro H | APS-H (26.6×17.9 mm) | 51 MP | ~150,000 | X3F |
| Sigma SD Quattro (APS-C sibling) | APS-C (23.5×15.7 mm) | 29 MP | ~150,000 | X3F |
| Sigma fp L (L-mount successor) | Full-frame | 61 MP (Bayer) | no mechanical | DNG |
| Actuation Count | % of Est. Life | Assessment |
|---|---|---|
| 0 – 5,000 | 0 – 3 % | Near new — very low use |
| 5,000 – 40,000 | 3 – 27 % | Light to moderate use |
| 40,000 – 100,000 | 27 – 67 % | Moderate to heavy use |
| 100,000 – 130,000 | 67 – 87 % | High use — negotiate price |
| 130,000 + | 87 %+ | Near or past estimated life |
The SD Quattro H uses a larger APS-H Foveon X3 Quattro sensor (26.6×17.9 mm, 51 MP effective) versus the SD Quattro’s APS-C sensor (23.5×15.7 mm, 29 MP effective). In practice, the H produces slightly larger files, slightly better detail at base ISO, and a 1.3× crop factor (vs 1.5× on the APS-C model) with SA-mount lenses. Both bodies are otherwise identical in build, controls, and workflow.
No. Like all Foveon sensors, high ISO is the SD Quattro H’s primary weakness. Noise becomes significant above ISO 400–800. The camera is best suited to controlled lighting, landscape, and studio work where ISO 100–400 is achievable. For high-ISO or low-light work, the Sigma fp L (Bayer CMOS) is far superior.
Only a Sigma authorised service centre can reset the hardware shutter counter, typically only after a physical shutter replacement. Always verify from an original X3F file.
Yes, via the SA→EF mount adapter. Autofocus and aperture control work with compatible Canon EF lenses (not all EF lens features are supported). This significantly expands the available optics beyond native SA-mount lenses.