QUOTE(jason_tan1980 @ Mar 31 2015, 09:02 PM)
Hi Bro, Thanks for your sharing, really appreciate that!
It seems like extension tube is not quite famous around, not many know this kind of tools.
I was thinking of getting whole set, so at the same time I can shoot on some jewels and tiny small item as well.
By the way, instead of Raynox that you said is quite rare, how about Kenko? any thought?
Don't mention it
Extension tubes are only popular in the macro world haha

Learn more about extension tubes, reverse rings and macro adaptors here:
http://pixelsdimension.com/getting-your-first-macro-camera/You will probably need to have a flash to shoot items using extension tubes, this is because these tubes actually reduce the amount of light falling onto your camera sensor (unlike Raynox); on top of the need to use very small apertures for wider DOF for macro shots.
For Extension tubes that allow autofocus, usually its just Meike (~RM300) and Kenko (~RM550)
I have 2 sets of Kenko tubes, and after shooting macro for so long, I would recommend against them, cause they will eventually fail (electronic connection with the camera will become lose- no more AF). I think it is best that you spend the money to try and look for a Raynox 150 (I think Shashinki got sell @~RM350) instead, see whether (i) the adaptor fits on your 85mm; (ii) the magnification is ngam for the stuffs you shoot or not first