DF DF64 Gen 2 vs Fellow Opus Conical Burr Grinder
A single-dose espresso platform versus an all-rounder. The DF64 Gen 2 at $399 has 64mm flat burrs and SSP upgradeability for near-professional espresso and filter grind quality. The Fellow Opus at $195 is half the price, quieter, better-looking, and does filter well with passable espresso. Choose the DF64 for grind quality and upgrade potential; choose the Opus for value, design, and all-round single-dosing.
Spec face-off
Bars scaled to the higher value. Coloured = wins that spec.
Full specifications
Strengths & weaknesses
Full comparison
The DF64 Gen 2 is a serious single-dose grinder: 64mm flat burrs (diameter usually seen in $600+ grinders) deliver grind quality matching grinders costing 2-3x more, it runs espresso-to-Chemex as a true all-rounder, and its open platform accepts SSP and other aftermarket burrs for near-unlimited upgrade potential. The Opus is a quieter, design-forward single-dose grinder that handles filter well and reaches espresso via a hidden inner ring, at half the price.
Grind quality favors the DF64 clearly — cleaner, more uniform grounds for both espresso and filter, where the Opus's fine-end consistency trails and it shows static at espresso settings. The DF64 does need a ~$20 bellows for clean espresso puck prep and uses stepless adjustment without numbered positions (keep a log).
Price, noise, and simplicity favor the Opus. At $195 it's half the cost, runs quiet, looks great, and is a tidy single-dose all-rounder for someone whose espresso is occasional. The DF64 is the pick for an espresso-focused buyer who wants quality and a future-proof platform.
Buy the DF64 Gen 2 ($399) for near-professional grind quality and an upgradeable platform. Buy the Fellow Opus ($195) for value, quietness, design, and all-round single-dosing.