There is a version of this review that spends its first paragraph apologizing for recommending an APS-C system with a third-party lens. This is not that review. The Sony A6700 paired with the Sigma 30mm f/1.4 DC DN is one of the most capable and practical camera combinations available for under $2,000, and it earns that claim without qualification. The Sigma 30mm on APS-C produces a field of view equivalent to roughly 45mm in full-frame terms — close enough to the classic 50mm standard to feel immediately natural, wide enough to work in tight interior spaces without distortion.