Hoya is very good. I tried once and never regretted using it. Because of that, i ditched both the vitacon uv and PLs that i had cos they turn out to be total rip-offs (no coating at all).:bsmilie:
Well I have checked out this site
http://www.mcgill.com.sg/shop/product_info.php?products_id=121
and true enough, they have the raynox 250. I may consider buying that, cos
1) i live in bedok area, and the collection place is near bedok
2) if I used it with my 100mm macro, closest focusing distance is reduced to 11cm instead of 1 ft (0.31m)
3) price is reasonable, only $120 for on-the-spot collection.