I can assure you that SEL50F18 has OSS. But beware some people has received their 50mm with defective OSS module. When you attach the lens and turn on the camera, you can hear a loud and long grinding noise coming out from the lens.

Sorry one stupid question, you meant the defected one has the loud and long grinding noise or the normal one?

The Hexanon master has spoken haha... I still only have 1 atm, the price for the rest (especially macro and f1.4) all ended up in high prices. How much for the Voigt? Looks sophisticated

hahah.. i not master lah! just most ppl here think Konica is lousy brand for camera.
I normally don't follow the majority, instead go for odd option by own research on best price/performance products.
that's how i choose NEX also although quite a numbers of surrounding friends are C&N photographers!
It's painful to let go those hexanons, but no point to keep them only in the dry cabinet. better let go for other ppl who can enjoy using it.
I will try to do short review and sample photo for each i have then share with you guys. that's will take a while!

The Voigtlander Ultron 28mm f2.0 brand new around RM2k, can order from Shashinki or some local shops.
i got mine 2nd hand with slightly lower price. it is small but solid and heavy like those metal built hexanons.
no time to test shoot outside yet. hopefully this weekend can bring out for shooting.

my 2nd photo on the flickr explore

This is simply stunning! HDR?

my 2nd photo on the flickr explore

Any good Hexas in the 30mm focal range? 50mm doesn't really suit my shooting style The 30mm Sigma E-mount crossed my mind, but the speed isn't exactly that much faster than the kit lens.

2K for a Voigt... I think I'll be staying away from it until I get a promotion or a major pay raise

where got US410,000 that high? the bhphoto only selling USD10995!!!
hahaha.. i wish i will be that loaded to go for the noctilux! 
btw, there is no point to go up to f0.95. the DOF is too shallow. even for f1.4 sometime hard to get the subject fully covered if get too close.

actually for past year of search online, i found that Konica Hexanon is the best price/performance lens.
the lens are very sharp especially 50/1.7, where 50/1.4 have better bokeh. 57/1.4 slightly less sharp than 1.7 and 1.4 but the old lens colour rendition and bokeh is very nice.
those older Hexanon '70 and before have some kind of characteristic while maintain some high quality close towards Zeiss and even Leica.
Konica produced nice Hexanon lenses with highest quality at that era, with their own optical formula.
however, the hexanon are not that popular like Nikon and Canon, as their lens have shallower registered length than those lenses. So only a few camera can fit the AR mount, end up only Konica camera users. 
Of course they have higher range for Leica rangefinder, the ultimate M-Hexanon range!!!  
But now with Sony NEX and MFT camera, now we can enjoy this cheap but good quality lenses!!!
If you live in US, you might get it at very cheap price depends on your luck!!!
Here we have limited source for Hexanon, and the US shipping is really not pocket friendly!!
My advise for ebay bidder, you must avoid shipping with USPS First Class mail at all!! it is just normal airmail without tracking number and not registered. you end up missing in the hand of local post office!!!
Priority mail is better and Express mail is the best for tracking, and both will be handled here by poslaju EMS.

now the reason i want to let go most of my Hexanon not because it is not good, but I prefer to have my NEX in more compact size. Hence I go for Leica M mount lens which is the lens is very compact as well as thin adapter,  and it seems they fit the NEX body better than the SEL lenses!
I still couldn't afford the Leica M lenses which more than RM3k. So first I got the Voigtlander 28mm F2.0 which have very good review from http://www.kenrockwell.com/voigtlander/28mm-f2.htm!

Any good Hexas in the 30mm focal range? 50mm doesn't really suit my shooting style The 30mm Sigma E-mount crossed my mind, but the speed isn't exactly that much faster than the kit lens.

2K for a Voigt... I think I'll be staying away from it until I get a promotion or a major pay raise

I read some review comparing 30mm & 50mm at the same aperture of let say F1.4, the 30mm will produced a softer but not so sharp focused image compare to the 50mm lens wor

yes true, i feel also 30mm is better for everyday shoot. and 28mm is even more close to my eyes view angle!
there is no 30mm Hexanon. But I have 28mm F3.5.
I wish i have the UC Hexanon 28mm f1.8, but it is rare and now very high price to bid!
There are 35mm f2 but very rare, maybe you can try to get 35mm F2.8. Hexanon 35mm f2.8
or else try the pancake 40mm 1.8.