I suggest to consider those following points,
And sorry to be again the buzzbreaker
(you're going to end to hate me) but I think your
Choice is not really the best.
If Michael Reichmann sees this, I'd like him to
Comment on the following, because if my memory's
Correct he pointed it a long time ago: there is a strange
Thing with the micro4/3 mount is that it seems that
The benefits to put expensive lenses (let's say like the
Leica M line) does not bring better IQ. This is something
I've been seeing over and over again with the m4/3, and
Others have also pointed it.
Actually I did in the past some testings with cine lenses
From the Konvas cameras that can be bought in ebay for
About 150 bucks and they performed as well if not better
Than much much more expensive glasses.
Why? I ignore, but for some reasons, probably the sensor size,
m4/3 is a world in itself and you don't need to spend 2000 bucks
And above to get optimal IQ.
Please, if some knowledgeable people could comment
On this point it would be nice.
Also, your going to work with 80mm ish with the lens
You want to buy. Therefore the problem of stability can
Not be ignored. You'll need a serious rig and a very stable
Tripod like a Vitten Vision. The focal length choosen is
Problematic in those aspects and very fast, when you'll be
Fed-up of a footage that shakes like a lap dancer chick,
You'll end to buy a wide lens or have to spend 3000 more
Bucks in good tripod (expensive!) and rig.
My advice would be to elect a wider focal at first.
So we are again in what Morgan and Coot said. What looks
Cheap and affordable will soon be more and more bills.
Then all you'll have will be fragmentated equipment that
You will not sell in ebay because the gh5 or 6 will be available
And as those are consummer cams made to last 2 or 3 years.
And you'll think "why the hell I didn't buy at first..."
Those are the kind of lenses you might want to look at
For micro 4/3:
http://www.veydra.com/They are afforbable, small and more suitable for motion.
Actually they are cine lenses.
But you'll get for 200 bucks a lens, a very good IQ with
The Konvas lenses, made by the soviets in the cold war
Era for their 35mm Cine cameras. In Oct18 or 19 mount
And pro adapters are available in ebay.
Now the gh4. It's a consummer camera, right? Obsolete
In 2 years, with the need of legorig (i should pattent this
Expression), not exactly "filmic look", not exactly small, nor big,
Nor bad nor great, nor....what else?
It's interesting to note the fact that the Cooter's Red1s are
Still fully in service and not obsoletes after those years
While the myriad of B cams he tried were changed every
Year or so.
In the end, all those consummer cameras are just short
Terms investment and in the end, in a few years you spent
The same as if you bought directly a pro equipment.
That's the thing camera makers don't want you to realise.
We are living in a hyperconsumist society. Needs have to
Be created with marketing bombings to the masses so
They are constantly unsatisfied and constantly buying
The next generation gear that gives momentany satisfaction,
One week or 2. Then they'll feel the need of "the magical
Update". Gh4, Sony alpha, 4k logos...are just that.
Professional gear are made to last and work for years.
In the end you'll pay the same.
Big difference.
So step-away from consummer equipment and invest
In pro gear from the very beginning.
Seriously, keeping the m4/3 mount, I'd go with the 900euros
Blackmagic micro camera:
https://www.youtube.com/watch?v=41zAfvdsUJs.
Smaller, easier to rig, professional,
With a much better codec and Raw. + the video assist + cage +
Batteries, for about 2000 your done and you record 2 files
Flavour at the same time wich is superb.
Also, the video assist will work on later cameras.
On top of it, I'd mount Konvas or Veydra glasses and forget
Completly the hybrid current plastiquish lenses of Pana-Oly.
Actually buy lenses of a 35mm that you'll be able to
Reuse on others cameras sensor size if you switch later.
Now you can hate me.