Hi Yu - Lin Chan
Likew your shots with the tamron 17mm SP.
I have had mine from new must be 1980 or around that time. I still use it on my olympus with the adaptall
mount, with the polariser and hood it looks very mean. Hals eye out of 2001. Seeing your shots, makes me feel like going out and taking some pictures, so i'll keep this brief. have you any other sites, your canadian based, be good to see.
Email back and i'll give you my website address. All the best. Jim