Canon EOS-1Ds Mark III vs Olympus OM-D E-M1
Side-by-side used price and spec comparison. Lowest current prices pulled daily from the major used-gear sites.
Today's price sits well above the recent low. Today's price runs 30% above the 90-day low of $249 (seen Jul 27, 2026). 4% of the $7,999 MSRP. Prices have been steady this month.
Used prices have been rising recently. Prices are up 9.0% over the last 30 days. The 90-day low was $320, $29 below today. Currently 25% of the $1,399 MSRP.
Specs side by side
| Canon EOS-1Ds Mark III | Olympus OM-D E-M1 | |
|---|---|---|
| Brand | Canon | Olympus |
| Family | Canon EOS-1D | Olympus OM-D |
| Category | body | body |
| Body type | DSLR | Mirrorless |
| Mount | Canon EF | MFT |
| Sensor | Full Frame | MFT |
| Sensor family | Canon FF 21MP CMOS (1Ds III) · 21.1MP full-frame CMOS | Olympus 16MP Four Thirds Live MOS · 16MP Four Thirds Live MOS |
| Megapixels | 21.1 MP | 16.3 MP |
| Autofocus | Phase Detection | Hybrid |
| IBIS | — | 5-axis 5-stop |
| Weather sealed | — | Yes |
| Max video | — | 1080p30 |
| Max native ISO | — | ISO 25,600 |
| Body weight | — | 497 g |
| Dimensions | — | 130 × 94 × 63 mm |
| Body material | — | magnesium alloy |
| Released | 2007-11-30 | 2013-01-01 |
| Discontinued | — | — |
| Status | discontinued | likely discontinued |
| MSRP | $7,999 | $1,399 |
| Current low | $324 | $349 |
| vs MSRP | -96% | -75% |
Dynamic range, head to head
Both sensors plotted on one chart, across the full ISO range. The higher line holds more shadow-to-highlight latitude at that ISO.
Overlay both curves on Photons to PhotosMeasurements by William J. Claff. We link rather than reprint them.
Both cameras appear in
Curated best-under lists where both of these qualify today.
The verdicts above describe price timing. They don't tell you which camera fits your shooting style. See /methods for how we normalize seller conditions and compute the deal score.