Panny 30mm macro practical on GM1?

Impulses wrote:

Fri13 wrote:

How about a Kooka MFT extension rings kit, 10/16/21mm and then just take the 10mm extension ring in to use?

It will turn the 12-32mm to very good close-up objective with 0.44x magnification. If you would use a 16mm extension ring you can manage to get a 0.63x magnification.

Interesting. I haven't heard of this make of tubes before but they seem to be almost 1/2 the price of the Kenko ones. What is the interior surface of the tubes like? I know cheap tubes with a shiny surface can reduce contract and image quality.

I do have some cheap manual tubes but never use them because of the inability to change the aperture and, to a lesser degree, the lack of AF. I could try them to with the 12-32 to get an idea of how the set up would work.

Thanks

My $30 Neewer tubes have ribbed insides and fully functioning electrical contacts...

Well, that got me looking on Ebay! Is that for the 10mm + 16mm twin tube set? I can't find the Neewer ones at that price but the Viltrox alternative looks ok:

http://www.ebay.com/itm/361113942383

I've already got a Viltrox 4/3 to M4/3 adapter which is pretty good quality.

The Neewer ones were also sold under Afga and a couple other brands, the seller I bought them from advertised them as Neewer but my box actually said Afga, or the other way around, can't remember now. I've seen them on Amazon as well... 10+16mm yup, looked a little different on the outside than those linked tho. They were like these:

http://www.ebay.com/itm/NEEWER-AUTO-FOCUS-AF-MACRO-EXTENSION-TUBE-DG-10MM-16MM-FT1-FOR-MICRO-M4-3-CAMERA-/191642008376?hash=item2c9ec0fb38

http://www.ebay.com/itm/FOTGA-Auto-Focus-AF-Macro-Extension-Tube-DG-10mm-16mm-FT1-For-Micro-M4-3-/321735586348?hash=item4ae8ef722c

I *think* I remember someone here on the boards having a negative comment about the Viltrox but I can't remember what it was, could try searching.