Stagg Music FTB-16 Deluxe Floor Tom Drum Bag Designed specifically for APS-C size digital SLR cameras Fast F2.8 maximum aperture making it ideal for low light photography Minimum focusing distance of 13.5cm and a maximum magnification of 1 - 6 Equipped with HSM with full-time manual focus override Equisolid angle projection method is possible for art and scientific use