Dr John Photography: Home Classes and Workshops Books Photo Gallery Articles and Calculators Full Frame vs Crop Sensor Camera Resolution Comparisons Telescopes and Binoculars Used Equipment Biography General Photography Forum Chat Room Email www.allocca.com: The Neurotransmitter Solution for Migraine, Depression, and More BrainictyTM Transcranial Neural Network Optimizer CDs and MP3s Starship Diabetes Books Library Sigma 12-24mm f/4.5-5.6 DG HSM II Full Frame Lens for Nikon F (tested, never used) Filter none 122-84.1 degrees FX FOV s/n 15242671 Original box and papers including sales receipt Purchased 6/4/18 $950 new Free shipping within the continental USA, not including Alaska. Sigma 12-24mm f/4.5-5.6 DG HSM II Full Frame Lens for Nikon F (tested, never used), $599