0.4mm
We went to The Curve and Ikano today in the afternoon and drop by a big optical shop, FP to look at some spectacle frames on promotion. I decided to buy a new specs as my specs is getting outdated and the coating on the lens is peeling off.
To cut the long story short, I’m just glad to have my Szer with me for she had saved me 60 bucks for just 0.4mm of thickness of the lens. For just 0.4mm, i was almost conned by the shop for 60 bucks but Szer made the sales assistant speechless with all the precision measurement and I saved 60 bucks.
There are two type of lenses I can choose from and I chose the RM260 one for it is thinner and lighter I think. The other one is RM200 and the difference from the Rm260 one is the thickness by 0.4mm .
Man, how can I get conned so easily?! Arggh. Anyway, thanks dear.

i asked the guy what’s the difference between o.58, 1.61 and 1.67 index and the guy just said..’a lot of difference’ until finally he brought the chart out. the guy is ok..but i wish customer service really know their product well
I have an engineer gf !! haha