Perhaps that was my set in the samples thread:Sigma 170-500mm F5-6.3 APO - PentaxForums.comThe distance to subject in that sequence wasn't far - less than 5 metres from memory. As other reviewers have said, the sharpness at the long end is OK when the subject ...
Item Description Sigma 170-500mm F5-6.3 APO DG Lens Reviews - Sigma Lenses - Pentax Lens Review Database hi all... selling this lens, too lazy to hand hold these days, and although i have a fine monopod, seem to be too lazy to drag that about as well... it's in decent ...
Sigma变焦镜头规格表 2001年10月7日更新 EX / EX DG / APO 系列 镜头 镜头结构 视角 最小 光圈 (f) 最小对 焦距离 cm*(微距) 放大倍率 *(微距) 滤镜 直径 (mm) 尺寸(D x L) (mm)x(mm) 重量 (g) 12-24/4.5-5.6 EX DG Asp 16/12 ...