QUOTE(C-Fu @ Mar 21 2012, 12:44 AM)
if you want pinch cap with hood, the cap needs to be 52mm.
same with if you want to make a cheap ring to replace the adapter, just get a cheap cheap 49mm filter, take out the glass and mount it terbalik, and you'll have a makeshift adapter that will fit any 49mm thread accessories. or like me, just get a US0.99 cent 52-49m STEP DOWN ring adapter from ebay (free shipping somemore!), and mount it terbalik.
and to remove the star effect at lightsource in your photos, under lightroom just increase the clarity setting.
Yeah, that's an option, personally I don't use the hood that much, but having the hood with a 52mm cap still has a large gap with the lens, but of course 52mm cap easier to find.
Added on March 21, 2012, 9:15 amQUOTE(ZzZzz... @ Mar 21 2012, 02:51 AM)
any JJC adapter ring user here????
just got my JJC hood from eBay, but the metal silver color of JJC hood seems quite different color from the body of x100....
is it true???
Yeah, its a slightly different colour, but not too much
Here's a picture of my JJC hood + the 49mm pinch cap.

Added on March 21, 2012, 1:45 pmNew firmware for X100 includes custom function for RAW button. WOOOHOOO! Awesome!
Details:
Firmware 1.20This post has been edited by bem69: Mar 21 2012, 01:47 PM