Should You Buy This Camera

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.

Canon

Canon EOS-1Ds Mark III

Canon EOS-1D · 2007
Lowest now
$324
MSRP
$7,999
-96% vs MSRP
Well above the 90-day low

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 are down 7.2% over the last 30 days.

Full details & price history
Sony

Sony Alpha 900

Sony Alpha (A-mount) · 2008
Lowest now
$504
MSRP
$2,999
-83% vs MSRP
Lowest price we've ever observed

Lowest price we've ever observed. This at $504 matches the lowest we've ever recorded for this body. That's 17% of the $2,999 MSRP. Prices have been steady this month.

Full details & price history

Specs side by side

Canon EOS-1Ds Mark III Sony Alpha 900
Brand CanonSony
Family Canon EOS-1DSony Alpha (A-mount)
Category bodybody
Body type DSLRDSLR
Mount Canon EFSony A
Sensor Full FrameFull Frame
Sensor family Canon FF 21MP CMOS (1Ds III) · 21.1MP full-frame CMOSSony FF 24.6MP CMOS (A850/A900) · 24.6MP full-frame CMOS
Megapixels 21.1 MP24.6 MP
Autofocus Phase DetectionPhase Detection
IBIS
Weather sealed
Max video
Max native ISO
Body weight
Dimensions
Body material
Released 2007-11-302008-10-22
Discontinued
Status discontinueddiscontinued
MSRP $7,999$2,999
Current low $324$504
vs MSRP -96%-83%

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.