This is the first time I am using a Full-Frame DSLR! Pardon my amaturish skills, hope you can bear with me these shots taken using the Nikon D700, and the Tamron 17-35mm F2.8-4 and Tamron 90mm F2.8 Macro DI lens. As usual, cloudy weather was the order of the day! All taken wide open at F2.8, hence testing the lens at the most extreme aperture and condition! The tamron 17-35mm F2.8-4 exhibits quite prominent vignetting, so I guess I will have to step down to F4 next time to try it out again on full frame. Should be able to solve it in photoshop too though I am too lazy to try it out just yet. The tamron 90mm F2.8 Macro is just wonderful even at F2.8 on full frame, I have no issues with its sharpness or colours at all! The last 2 pictures , taken the day after, were of my buddies horsing around! Anyway both lens were very sharp even at wide open, thanks to the ability for me to self calibrate the lens on the camera body.