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D3X vs SLT-A99
Quick take: The D3X has the highest resolution at 24MP; the SLT-A99 is the most affordable.
16 specs side by side·14 genres scored·UK prices from Wex Photo Video and Clifton Cameras
How to read this page. Highlighted cells win that row on the spec alone. Genre scores are the engine's base scores (enthusiast, photo and video); Camera Match re-weights them for your level and priorities. Price buttons are affiliate links; the price you pay is the same.
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Full specificationsthe better value in each row is highlighted
| Specification | D3XNikon · 2008 | SLT-A99Sony · 2012 |
|---|---|---|
| Price | £638 used | £454 usedBest |
| Sensor | 24.5MP full-frame CMOS | 24.3MP full-frame sensor |
| Resolution | 24.5MPBest | 24.3MP |
| Video | No video | Full HD 1080p/60 |
| Autofocus | 51-point phase-detect AF (15 cross-type) with 3D tracking | 19-point phase-detect (11 cross) via the translucent mirror + 102-point on-sensor phase assist, face detection |
| Stabilisation | No IBIS (lens-based stabilisation only) | 4.5-stop sensor-shift SteadyShot INSIDE |
| Burst Rate | 5fps | 6fps with continuous AF (10fps in crop mode)Best |
| Battery Life | ~4400 shots (CIPA)Best | ~500 shots (CIPA) |
| Weight | 1220g (with battery) | 812g (with battery and card)Best |
| Dimensions | 159.5 × 157 × 87.5mm | 147 × 111.2 × 78.4mm |
| Weather Sealed | Not weather sealed | Not weather sealed |
| Viewfinder | Optical pentaprism, 100% coverage, 0.7x | OLED EVF, 2.36M dots, 100%, 0.71x |
| Screen | 3.0" fixed LCD, 921k dots | 3.0" three-way tilting / swivel LCD, 1.23M dots |
| Mount | Nikon F | Sony A-mount |
| Memory Cards | Dual CompactFlash slots | Dual slots: SD / Memory Stick + SD |
| Connectivity | USB 2.0, HDMI (Type A), 10-pin remote, PC sync, Wi-Fi via WT-4 | Micro USB, HDMI, 3.5mm mic + headphone, remote terminal, Multi Interface Shoe |
Wins the row — price, resolution, burst, battery, weight and sealing are compared; text specs aren't ranked.
How they score by genreengine base scores out of 10
Genre
D3X
SLT-A99
Portrait
5.9/10
6.4/10
Street
4.0/10
5.3/10
Travel
3.6/10
4.7/10
Wedding & Events
6.0/10
6.0/10
Documentary
3.2/10
4.6/10
Sports & Action
5.2/10
5.3/10
Landscape
4.8/10
5.2/10
Wildlife
5.1/10
5.2/10
Casual
2.3/10
3.4/10
Food
4.0/10
5.6/10
Macro
3.6/10
4.1/10
Architecture
5.0/10
5.5/10
Astrophotography
5.8/10
5.5/10
Vlogging & Video
—
4.0/10
Scores come from the same engine as Camera Match: verified specifications weighted by what each genre needs, with documented adjustments. The product page and this table show the enthusiast base score. See how scores are calculated →
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