77mm Variable ND2-400 Filtervs A1 II
K&F Concept
77mm Variable ND2-400 Filter
Starting from £45 new
Best for Video exposure control & daytime long exposures
View 77mm Variable ND2-400 Filter
Sony
A1 II (2025)
Starting from £6500 new
Best for Professional sports, wildlife & high-resolution studio work
View A1 II
GearScore™ Verdict — Which should you buy?
Video Exposure Control & Daytime Long Exposures — 77mm Variable ND2-400 Filter: One filter instead of three. At 77mm it works on most standard zoom lenses. There's some colour cast and cross-pattern at extreme settings — step up to the Hoya or Breakthrough options if you need perfection, but for most uses this delivers excellent results at a fair price.
Professional Sports, Wildlife & High-Resolution Studio Work — A1 II (2025): The most complete camera ever made — 50MP, 30fps, 8K, and the world's best EVF in a single flagship body.
Who should buy what
77mm Variable ND2-400 Filter
- Videographers who need to control shutter speed in bright daylight
- Photographers who want to shoot long exposures without swapping fixed ND filters
- Portrait photographers who want shallow depth of field in bright outdoor light
- Anyone who wants one filter to cover all ND situations
A1 II (2025)
- Professional sports and wildlife photographers who need 30fps, 50MP, and the best AF available
- Commercial and advertising photographers who demand 50MP resolution alongside pro video specs
- Photojournalists who need a single body capable of handling every assignment
- Sony system shooters ready to invest in the absolute best
Quick take: The 77mm variable nd2-400 filter is the most affordable; only the a1 ii is weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | 77mm Variable ND2-400 Filter | A1 II (2025) |
|---|---|---|
| Price | £45 | £6,500 |
| Sensor | — | 50.1MP full-frame stacked BSI CMOS |
| Resolution | — | 50.1MP |
| Video | — | 8K/30p, 4K/120p 10-bit, 4K/240p super slow-motion |
| Autofocus | — | AI subject recognition — human, animal, bird, insect, vehicle, aircraft, train |
| Stabilisation | — | 8.5-stop IBIS (with in-lens OSS) |
| Burst Rate | — | 30fps electronic (with full AF/AE), 10fps mechanical |
| Battery Life | — | ~530 shots (CIPA) |
| Weight | 65g | 743g body only |
| Dimensions | 77mm thread × 8mm depth | 136.1 × 96.9 × 82.9mm |
| Weather Sealed | No | Yes |
| Viewfinder | — | EVF 0.9× 9.44M-dot — the highest resolution EVF available |
| Screen | — | 3.2" fully articulating touchscreen, 2.1M dots |
| Mount | 77mm filter thread | Sony E-mount (full-frame) |
| Memory Cards | — | Dual CFexpress Type A / SD UHS-II slots |
| Connectivity | — | USB-C 3.2 Gen 2, Wi-Fi 6GHz, Bluetooth 5.3, HDMI full-size |
Suitability by genre
| Genre | 77mm Variable ND2-400 Filter | A1 II |
|---|---|---|
| Video | — | |
| Street | — | |
| Portrait | ||
| Wildlife | ||
| Sports | — | |
| Landscape | — | |
| Vlogging & Video | — | |
| Travel | — |
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