If you check out dxomark, the summilux is ahead in terms of sharpness but not by much. Again, if size is compared, the summilux is smaller. But, if price is compared, the 25/1.7 wins hands down. Photo quality of 25/1.7 is quite close to the famed 20/1.7. It also has very nice rendering too wide open. And it shoots much much faster than the 20/1.7.
If size is absolute importance, like me, the O25/1.8 it is.

Otherwise, a Summilux is still a Summilux. You won't regret having this.
Always go for the latest model if you can afford it. Choosing between EP5 vs GF9 quite simple to me. EP5 is a much higher-end model. I owned it before and I really liked it. If you don't mind it's an older model, go for it!

GF9 is more a selfie model just like the GF8 and is a good starting unit if your just into m4/3 and it will take very nice pictures too, though not as advanced as the E-p5.

Whatever your choice, both are good models.

I previously used en5 then sold it out for xt1. But yea i dont quite like omd design though the canera itself is a beast! Also used gx1 before lol.. My dilemma now is im finding a budget friendly camera which perform the best for travel itself. I kinda like gf9 but i rmb the colour from panny a lil weird too me. Theres a green tint on it whicb i dont like..Ep5 i simply like its design even though it is older. But yea i also think always go for a newer model but looking at reviews online, seems like ep5 is much better in all aspect vs gf9.. Hmm..

What do you shoot most with the O12/2.0? Landscapes? Buildings? Or street? Maybe too wide for street.

Honestly it doesn't get use a lot compare to my other lenses due to it's wider nature. I mostly use the 12mm of my 12-35mm which is very sharp at f4. The only time I switch to 12mm is when I need to shoot at f2 under low light situation indoor. And since indoor usually consist of tighter space, it is good to be wide.

Maybe in the future I will shoot some milky way with it. 

P4045851 by sai861212, on Flickr

what lens?

rokinon 7.5mm.
eh, apasal my 3rd pic auto rotate in here 

i can't handle anything more than 12mm (24mm equiv.)...too wide.

would love to get one just for Ultra wide landscape and fun of it. 12mm out of budget for me - be it 12-40 / 12-32 or oly 12mm.
since its just around RM600, not bad for a beginner 

what really nice of this lens is - everything is quite sharp / in focus.

You hand-held the shots is it? Really quite sharp this Rokinon 7.5mm. Love the greens  

A bit too wide for me too

I think 9mm (after converting the 12-32 with a wide-angle converter) is the widest for me at the moment, can't accept the distortion at the background sometimes, but this can be easily corrected in pp.

You hand-held the shots is it? Really quite sharp this Rokinon 7.5mm. Love the greens  

A bit too wide for me too

I think 9mm (after converting the 12-32 with a wide-angle converter) is the widest for me at the moment, can't accept the distortion at the background sometimes, but this can be easily corrected in pp.

yeah. hand held. gotta crop off the corner and straighten it in PP/LR 
why la lens price won't drop like body pricing 

yeah. hand held. gotta crop off the corner and straighten it in PP/LR 
why la lens price won't drop like body pricing 

I briefly tested 9-18, 9mm really was wide and good, but still itchy want widest. That day met one photog that used to own Samyang 7.5 and he said sharp enough, if defish still usable 

Most of the shots from my 9mm (converted 12-32) are surprisingly straight enough unless you observe closely, very little straightening needed. But for the 7.5 I am pretty sure you will need straightening or 'de-fish' is this the term photog use (like someonesim) to straightening a hugely distorted image he he..learn a new word

Lenses are better investment in the long run than cam bodies which is true in the old days but apparently this trend has become rather blur/obsolete in the digital world as newer more modern versions are produced, even more so for cam bodies. One lens I find that defies this is the Panny 20/1.7, still a gem in our m4/3 world, hey it is the one and only 20mm lens! I have my 1st 20mm in 2009 and I still have one in my bag, 8 years later  Though I don't shoot it much this days.   
Ya our curiosity sometimes got the better of us and we just had to have a hands-on, itchy mah...

Pros and cons of not live in Japan, difficult to test lens.
I spend just one hour at Japan's camera store ( a relatively small branch only ) and spend RM10XX already    Cant imagine the damage if I have more time 

Pros and cons of not live in Japan, difficult to test lens.
I spend just one hour at Japan's camera store ( a relatively small branch only ) and spend RM10XX already    Cant imagine the damage if I have more time 

You should be joyful like a kid in a candy store for the first time he he So lucky you got something back for spending only one hour, i envy you already. I normally spend hours and hours doing research and dong a lot of reading before deciding. See, your lucky already, one hour only?  Very well spent

Olympus Global Open Photo Contest winners announced



more:

https://gopc.olympus-global.com/2016/results/