52mm = "ext diameter" of lens accessories ie. the filters, adapters... etc.afbug said:err....i am newer than a newbie I dunno what is a 52mm Circular Polariser & a 52mm UV filter. Whats the diff between 52mm and 30mm? What is 36-52mm? Pls pardon me but i really do not know. So if i want, i should get a brandless 36-52mm adapter than the sony 30mm adapter?
These additional stuff u attach on ur cam's lens come in a range of sizes, which can go from 30mm up to 70+mm, dep on the size of ur cam's lens. U need to get the exact size tt fits ur lens (0.5mm is not tolerated), otherwise u won't be able to attach it. It's wise to bring ur cam along to try it out at the shop 1st before buying.
"36-52mm adapter", in my own words (not sure wat's the proper term) is the metal ring u screw onto the cam's lens in order to attach accessories on it. It looks something like a funnel over the lens. With it, I'll be able to attach lens accessories of size 52mm (which is more readily available in wider range compared to 30mm) in diameter onto my lens (ext diameter = 36mm), Since the outer end of the adapter is bigger (52mm), it will not block the viewing angle of my lens (36mm) even when zoom is not activated (unlike Sony's 30mm adapter). Reason why I bought tt size instead of other sizes cos it so happened tt the salesperson at the shop tried it onto a W1 in the shop & it fits.
Me learnt all these info fr various salesperson at different shops fr Funan & Peninsula... Prior to tt, me have no idea wat all these are abt too, juz like u.