The new Samsung 45mm f/1.8 lens is the equivalent of 69.3mm, making this an ideal portrait lens, which should give good out of focus backgrounds. Another benefit of this lens is the price with an expected retail price of just £229, it would make an excellent first or second lens for the Samsung NX system.
Samsung NX Lens 45mm f/1.8 Hands-On Photos of Equipment
The Samsung NX 12-24mm f/4-5.6 ED ultra wide-angle zoom lens is also quite competitively priced, with an expected retail price of £479. This lens is the equivalent of 18.5mm to 37mm in 35mm equivalent terms. Shown here with the Highly Recommended Samsung NX20. Specifications for the lens are shown below.
Samsung NX 12-24mm f/4-5.6 ED Hands-On Photos of Equipment