i'm going to buy a zoom telephoto... and stuck between these two...Nikon 80-400mm f/4.5-5.6D ED VR AF Zoom-Nikkor LensorSigma 80-400mm f/4.5-5.6 EX DG OS (Optical Stabilizer) APO IF Tele Zoom Lens for Nikon AF-D.any thoughts?
the nikkor one goes for US$1,279.95 on adoramaand the Sigma is US$979.95, also on adorama
forgot to add:it NEEDS to work fully with my F5