Sigma
BF
Minimalist full-frame L-mount body with large top screen and unique design.
$1,999
Launch priceReleased Apr 2024
Sony
Alpha 7 V
33MP partially stacked Exmor RS hybrid with BIONZ XR2 AI, 30fps blackout-free burst, 7.5-stop IBIS, and 4K 60p oversampled from 7K.
$2,899
Launch priceReleased Dec 2025
Alpha 7 V is 1.6 years newer.
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Wins
BF
Wins
Alpha 7 V
4 categories tied
TL;DR — Key differences
- BAlpha 7 V has higher AF points / zones (759 vs 49)
- BAlpha 7 V has higher Max video bit rate (600 Mbps vs 150 Mbps)
- BAlpha 7 V has higher ISO max (native) (51,200 vs 25,600)
- BAlpha 7 V has higher Burst (electronic) (30 fps vs 15 fps)
- BAlpha 7 V has higher 4K max frame rate (120 fps vs 60 fps)
Key specs at a glance
Size and weight, to scale
BF
138 × 98 × 88 mm
720 g (1.59 lb / 25.40 oz)
Credit card
85.6 × 54 mm
for scale
Alpha 7 V
130 × 96 × 82 mm
695 g (1.53 lb / 24.52 oz)
BF is 8mm wider, 2mm taller, and 6mm thicker than Alpha 7 V.
BF is 25 g heavier than Alpha 7 V.
Depth (front-to-back): 88mm BF · 82mm Alpha 7 V
Back view, to scale
Width × Height — same proportions as the front of the body.
BF
138 × 98 mm
Credit card
85.6 × 54 mm
Alpha 7 V
130 × 96 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
BF
138 × 88 mm
Credit card
85.6 × 54 mm
Alpha 7 V
130 × 82 mm
Sensor size, to scale
BF
36 × 24 mm · Full Frame
864 mm² area
Alpha 7 V
35.9 × 23.9 mm · Full Frame
858 mm² area
Lens ecosystem
Native lens selection
BF: mount data unavailable
Alpha 7 V
✓ more lensesSony E
350+
native lenses available
Counts include current first-party and major third-party native autofocus lenses.
Use-case scoring
Which one for what?
Algorithmic scores from verified specs · 10 = best in class
Why pick one over the other
Reasons to choose
BF
AF low-light limit
-5 EV vs -4 EV — lower is better
Dimensions (W×H×D mm)
Adds 138, 98, 88
Subject recognition
Adds Vehicle
Battery life (CIPA)
640 shots vs 630 shots — higher is better
Reasons to choose
Alpha 7 V
Dimensions (W×H×D mm)
Adds 130.3, 96.4, 82.4
AF points / zones
759 vs 49 — higher is better
Max video bit rate
600 Mbps vs 150 Mbps — higher is better
Codecs
Adds XAVC HS, XAVC S, XAVC S-I
Subject recognition
Adds Insect, Car, Train…
ISO max (native)
51,200 vs 25,600 — higher is better
Burst (electronic)
30 fps vs 15 fps — higher is better
4K max frame rate
120 fps vs 60 fps — higher is better
Both cameras share
- ✓AA filter — Both support aa filter
- ✓ISO min (native) — Both 100
- ✓Eye AF — Both support eye af
- ✓Animal / bird AF — Both support animal / bird af
- ✓Pre-Capture / Pre-Release — Both support pre-capture / pre-release
- ✓In-body stabilization — Both support in-body stabilization
Pros & cons at a glance
Editorially curated highlights and trade-offs.
BF
Pros
- ✓Unique design
- ✓Full-frame
- ✓L-mount
Cons
- –No IBIS
- –Niche ergonomics
- –Limited controls
Alpha 7 V
Pros
- ✓33MP partially stacked sensor — ~4.5× faster readout than α7 IV
- ✓Blackout-free 30 fps with full AF/AE (electronic shutter)
- ✓7.5-stop central / 6.5-stop peripheral IBIS (CIPA 2024)
- ✓759-point phase-detect AF down to EV -4 with AI subject recognition
- ✓7K oversampled 4K 60p (full-frame, no pixel binning) + 4K 120p
- ✓Pre-Capture and dual USB-C (10 Gbps + USB 2.0)
- ✓Up to 16 stops dynamic range
Cons
- –Premium price vs α7 IV
- –4K 120p typically requires APS-C / Super 35 crop
- –Heavier than α7 IV (695 g vs 659 g with battery)
- –Complex menu and feature set
Decided which one is right for you?
Compare live prices for the BF and Alpha 7 V at major authorized retailers.
Sony Alpha 7 V
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for sports, BF or Alpha 7 V?
Alpha 7 V scores 8.0/10 versus 6.0/10 for BF — 30fps burst — pro-level action capture.
What's the resolution difference between the BF and Alpha 7 V?
BF is 24.2 MP and Alpha 7 V is 33 MP, so the Alpha 7 V captures more detail for cropping and large prints.
Do the BF and Alpha 7 V have in-body image stabilization?
BF has 6-stop in-body image stabilization, while alpha 7 V has 7.5-stop in-body image stabilization.
Which shoots faster bursts — the BF or the Alpha 7 V?
BF reaches 15 fps electronic. Alpha 7 V reaches 30 fps electronic.
What's the weight difference between the BF and Alpha 7 V?
BF weighs 720 g and Alpha 7 V weighs 695 g, so the Alpha 7 V is 25 g lighter.
Do the BF and Alpha 7 V record 4K video?
BF: 4K up to 60p. Alpha 7 V: 4K up to 120p.
Are the BF and Alpha 7 V weather sealed?
BF: Yes. Alpha 7 V: Yes.
Which has better battery life?
Rated battery life is 640 shots (CIPA) for the BF and 630 shots for the Alpha 7 V, giving the BF the edge.
How much does each cost?
BF launched at $1,999 and Alpha 7 V at $2,899. The BF is $900 less.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed June 2026.
Product images courtesy of Sigma and Sony press materials.