Should You Buy This Camera

Nikon D3X vs Sony Alpha 850

Side-by-side used price and spec comparison. Lowest current prices pulled daily from the major used-gear sites.

Nikon

Nikon D3X

Nikon D-series Pro · 2008
Lowest now
$844
MSRP
$7,999
-89% vs MSRP
Well above the 90-day low

Today's price sits well above the recent low. Today's price runs 94% above the 90-day low of $434 (seen May 22, 2026). 11% of the $7,999 MSRP. Prices have been steady this month.

Full details & price history
Sony

Sony Alpha 850

Sony Alpha (A-mount) · 2009
Lowest now
$409
MSRP
$1,999
-80% vs MSRP
Near the 90-day low

Close to the 90-day low. Within $15 of the 90-day low of $394. 20% of the $1,999 MSRP. Prices are down 7.9% over the last 30 days.

Full details & price history

Specs side by side

Nikon D3X Sony Alpha 850
Brand NikonSony
Family Nikon D-series ProSony Alpha (A-mount)
Category bodybody
Body type DSLRDSLR
Mount Nikon FSony A
Sensor Full FrameFull Frame
Sensor family Nikon FX 24MP CMOS (D3X) · 24.5MP full-frame CMOSSony FF 24.6MP CMOS (A850/A900) · 24.6MP full-frame CMOS
Megapixels 24.5 MP24.6 MP
Autofocus Phase DetectionPhase Detection
IBIS
Weather sealed
Max video
Max native ISO
Body weight
Dimensions
Body material
Released 2008-12-012009-09-25
Discontinued
Status discontinueddiscontinued
MSRP $7,999$1,999
Current low $844$409
vs MSRP -89%-80%

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.