Should You Buy This Camera
Sony A6400

Sony A6400

Mirrorless · Sony E · released 2019-01-15
Lowest now
$520
Good price -42% vs MSRP
See prices at 5 sources (jumps down this page)
MSRP at launch
$899
Jan 2019
Inventory
107
across 5 sources

Near the 90-day low

How we compute this

Close to the 90-day low. Within $24 of the 90-day low of $496. 58% of the $899 MSRP. Prices are down 20.0% over the last 30 days.

Lowest now
$520
MSRP
$899
vs MSRP
-42%
90-day low
$496
All-time low
$496 (Sep 16, 2026)
30-day trend
-20.0%
Observed across 5 sources · 81 days of history in last 90 · Methodology

Latest pricing by source

Each row is a direct observation from the seller. eBay links are affiliate links. How this works.
Source Condition Price Listings Observed Link
bh
good
→ good
$800
3 Observed yesterday view listing
ebay
used
→ good
$520
shipping not quoted
9 Observed yesterday view listing
keh
excellent
→ excellent
$707
1 Observed yesterday view listing
keh
like new minus
→ mint
$799
1 Observed yesterday view listing
mpb
excellent
→ excellent
$744
67 Observed yesterday view listing
mpb
good
→ good
$744
12 Observed yesterday view listing
mpb
like new
→ mint
$779
11 Observed yesterday view listing
upp
good
→ good
$695
2 Observed 8d ago view listing
upp
mint-
→ mint
$770
1 Observed 8d ago view listing
Buy new on Amazon (affiliate) New from Amazon. Used prices below.

Price history

One point per day per (source, grade) pair, connected with lines. Hue marks the source; lightness within a hue marks the condition (darker = better grade). The dashed line is launch MSRP.

See Methods notes #1.1, #1.2, #1.3, #1.4.

Loading price history

Specs

Brand
Sony
Family
Sony Alpha
Category
body
Body type
Mirrorless
Mount
Sony E
Sensor
APS-C
Megapixels
24.2 MP
Lens type
—
Sensor family
Sony APS-C 24MP (A6400/A6600/ZV-E10)
Autofocus
Hybrid
AF system
Sony Fast Hybrid AF
IBIS
no
Weather sealed
Yes
Max video
4K30
Max native ISO
ISO 32,000
Weight
403 g
Dimensions
120 × 67 × 60 mm
Body material
magnesium alloy
Released
2019-01-15
Status
current

Notes

manual MSRP

Computational features

HDR

Older APS-C; minimal CP features.

Autofocus & action

Birds-in-flight keeper rate

#23 on Mirrorless Comparison's AF ranking
80%
AF score (sharp keepers), 93% counting slightly soft
80%
Drive score at 8 fps (6/8 sharp)
8 fps: 80% (6/8) 10 fps: 77% (7/10)

Birds-in-flight keeper rates come from Mirrorless Comparison. They shoot thousands of frames per body in the field and count how many come back sharp, which is the most useful hands-on autofocus test for wildlife we've found. Go read the full birds-in-flight rankings and their per-camera field notes.

See the full birds-in-flight test at Mirrorless Comparison →
AF system
Hybrid (phase + contrast)
Focus points
425 hybrid
Subject detection
Human eye/face, Animal
Burst (mechanical)
11 fps
Burst (electronic)
11 fps
Pre-burst capture
No
Card slots
1 (Single SD UHS-I)
Sensor readout
Standard CMOS

425 phase-detect + 425 contrast-detect points covering 84% of frame; animal Eye AF (no separate bird mode); no electronic shutter speed advantage over mechanical.

More in this family

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Appears in

Curated lists where this camera currently qualifies. Each list ranks members by deal score.

In our guides

Buying guides that feature this camera, with live prices from the same nightly crawl.

Head to head

The closest cross-shops for this camera by price and sensor size. Each opens a full side-by-side.

Similar cameras

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Compare with another model

Compare 3+ cameras
Family
Model

Measured dynamic range

Bill Claff's lab measurements of how much shadow-to-highlight range this sensor holds, plotted across the full ISO range. Higher is more latitude to recover a dark frame.

See the curve on Photons to Photos

Measurements by William J. Claff. We link rather than reprint them.

Sample photos

Real-world photos taken with this camera, grouped by EXIF data on Flickr.

Browse shots on Flickr
Methods

How we compute each section

References on each chart link down here. More notes will land as new sections grow.

1. Price history

#1.1 · Grade buckets
Each seller publishes their own raw condition labels (e.g. "Excellent+", "Like new minus", "Bargain"). Those are normalized to a small bucket set: mint, excellent, good, fair, poor, and unknown. The "Latest pricing by source" table above shows both the raw label and the normalized bucket so you can audit any individual mapping.
#1.2 · Missing days
A point is only drawn on a day when a snapshot existed for that (source, grade) pair. Lines connect across gaps so a series with sparse sampling still reads as a single trend, but absence of a point does not mean a stockout: it means we didn't see a listing at that grade that day.
#1.3 · Color encoding
Hue carries the source: terracotta = mpb, sage = keh, cobalt = B&H, honey = ebay. Lightness within a hue carries the condition: darker means a better grade (mint and excellent are darkest; poor is lightest). The dashed ink line is launch MSRP, included as a reference even though it isn't a price observation.
#1.4 · Shipping
Every price on this page is the item price, the number the seller puts on the listing. Where a seller quotes shipping we show it underneath as a separate line and add it up for you, because on used marketplaces it is not small: a lens listed at $189 can carry $74 of shipping, which is 39% on top. Dealers (mpb, keh, B&H) ship domestically free or flat and we do not ask them for a figure. Where eBay quotes nothing the row says so, because some listings calculate shipping from your address and we cannot know it; on the 2026-08-23 crawl that was about a third of eBay listings, and most of them were US sellers rather than overseas ones. Price history charts the item price throughout, so a series stays comparable to its own past.
#1.5 · Lenses sold in several mounts
A third-party lens like the Sigma 35mm f/1.4 Art is one optic in a dozen mounts, and the mounts don't sell for the same money, so each one gets its own page here. Listings are less tidy: plenty of them read "Sigma 35mm f/1.4 DG HSM Art Lens" and never say which mount that is. We reject a listing whose title names a different mount, but a title that names none can't be contradicted, and we keep it rather than leave the page blank. That is a deliberate trade of precision for coverage, and it only applies to lenses carrying the note above the price table. If the exact mount matters to you, open the listing.