Canon EOS-1Ds Mark III vs Sony Alpha 900
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.
Lowest price we've ever observed. This at $425 matches the lowest we've ever recorded for this body. That's 14% of the $2,999 MSRP. Prices are down 5.6% over the last 30 days.
Specs side by side
| Canon EOS-1Ds Mark III | Sony Alpha 900 | |
|---|---|---|
| Brand | Canon | Sony |
| Family | Canon EOS-1D | Sony Alpha (A-mount) |
| Category | body | body |
| Body type | DSLR | DSLR |
| Mount | Canon EF | Sony A |
| Sensor | Full Frame | Full Frame |
| Sensor family | Canon FF 21MP CMOS (1Ds III) · 21.1MP full-frame CMOS | Sony FF 24.6MP CMOS (A850/A900) · 24.6MP full-frame CMOS |
| Megapixels | 21.1 MP | 24.6 MP |
| Autofocus | Phase Detection | Phase Detection |
| IBIS | — | — |
| Weather sealed | — | — |
| Max video | — | — |
| Max native ISO | — | — |
| Body weight | — | — |
| Dimensions | — | — |
| Body material | — | — |
| Released | 2007-11-30 | 2008-10-22 |
| Discontinued | — | — |
| Status | discontinued | discontinued |
| MSRP | $7,999 | $2,999 |
| Current low | $324 | $425 |
| vs MSRP | -96% | -86% |
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.