sigma 10-20 is a wide angel lens
tokina 10-17 ia a fish eye lens (with 17 as wide i think)
i am thinking to get both of this lens for my d40x. the tokina is for creative and fun picture. and the sigma is for normal shotting with wide angel. and i have the kit lens nikor 18-55.
do you think it worth to get both lens? i like to shoot usingin the wide angle. and i also wanted to have one fisheye lens for the fun of its effect. do any one have any other combination? any sugestion? just get sigma or the tokina or both?
tokina 10-17
http://www.bhphotovideo.com/c/product/468738-REG/Tokina_ATX107PRODXN_10_17mm_f_3_5_4_5_AT_X_107.html
sigma 10-20
http://www.bhphotovideo.com/c/product/381611-REG/Sigma_201306_10_20mm_f_4_5_6D_EX_DC.html
firstly thank for your comment