Sigma's compact Art-line normal prime for APS-C mirrorless — 45mm equiv at f/2.8 in tiny package.
The Sigma 30mm f/2.8 DN Art launched in 2013 as part of Sigma's compact Art-line primes for mirrorless, providing 45mm equivalent on Sony APS-C E-mount. The DN designation indicates mirrorless-native design — compact, lightweight, and well-suited to small bodies.
Optically good for the size — sharp from f/4 with decent performance at f/2.8. Art-line designation ensures quality optical standards. Linear AF motor is quiet and fast enough for general use. The 45mm equivalent is a classic normal perspective.
Sony E mount with 46mm filter thread. Weighs just 140g — incredibly compact. No weather sealing. Minimum focus distance 30cm. Art-line surface texture finish. Available in silver and black. Also available for MFT.
Available used very cheaply — outstanding value. The Sigma 30mm f/1.4 DC DN is sharper and faster but larger. The 30mm f/2.8 DN is for those who want absolute minimum size. A decent everyday prime for Sony APS-C users at bargain prices.