© 2013 Robert OToole Photography | Lens: Sigma Macro 150mm F2.8 EX DG OS HSM Camera: NIKON D800E DX mode | ISO: 100 | Aperture: f8 | Shutter speed: 1/250 sec | single SB-R200 flash. This is the flower at approximately the same size in the viewfinder at the same camera settings and equipment, only this time in DX (APS-C) sensor format.