Nikkor

Fullframe look is perfectly fine because what focal reducers do is compressing the image circle,or virtually scaling up the sensor.

Great, I thought the image circle wouldn't cover m43. They should make a 2x scaled version of it for the A7s -> medium format. I wonder what will happen to the specific gh4 speedbooster if this turns out to work fine.

And the other day I saw 4000W solar panels for 2500€, fuck peak oil, bahahahaha

No autofocus at all. I don't know about aperture control, I guess it depends on the adapter. http://www.bhphotovideo.com/c/product/983747-REG/metabones_mb_ef_e_bm3_canon_ef_to_e_mount_nex.html This one states Autofocus so I'm wrong. But:

And the same happens with the NEX speedbooster. You can use a APS-C lens on a fullframe body too, shure it works...

Looks amazing, can't wait to see some samples.

Speedbooster doesn't work, with the nex speedbooster you still only get a aps-c sized circle (I asked someone to test this)

I think they used it in lab stuff (microscopes,etc...) but I wouldn't rule out some old 70s cameras.

Well there is no need for that because the variable diopters in some Iscoramas are radioactive. Isco Göttingen has a tradition of using contaminated glass, or even glass with thorium for their cinema projection lenses. The pre 36 iscoramas and the cinegon versions are affected, I definitly wouldn't want to use one. Anyway, developing chemicals are dangerous too and nobody cares.

The light entering the lens is still the same so unless this system is more efficient capturing photons I can't see how this would make it any faster, my guess is that it's even slower.

So that's why you folks up there are so crazy :p

Rich, the pictures aren't working (they never have).

The radiation itself is not a problem, but I can see myself washing my hands all the time with these lenses so I prefer not having them.

It's something that has been bothering me a lot with my nikons (on a steadycam it becomes very visible) and which doesn't seem to happen in raw cameras, I might be a little bit obsessive but it's something important to me. I wish someone with tecnical knowledge could explain what exactly creates this, or if it's just in my imagination (or yours). I'll check some gh4 footage.

I've send them a suggestion for a medium format focal reducer, I have totally failed to do one on my own (it has terrible aberrations, and only 0.6x reduction), I want to use my glass digitally without spending millions on MFDB

Like this tipical shot with grass where you want to put in some contrast with a curve and the macroblocks rape your eyes.

It will look better as soon as you touch the colors ,contrast and/or sharpening , the macro blocks pop right in your face. Also the shadows look cleaner so you can underexpose and use flat profiles.

But it still uses lenses, right?

Just wait, it will be 1999$ in less than a year.

what's the pass, I want to see it too ;)

Shure andy, but how do they compare to other medium format lenses?

How do the pentacon 6 lenses compare to other medium format lenses? For example with pentax 67 lenses. I compared some pentax 67 lenses to some nikon lenses on a D3 and they had less resolution less contrast (I only have the latest versions) and had some strange colored cromatic aberrations. I haven't bought any pentacon stuff because the cameras are a mess and I don't like the idea of thorium (call me stupid).

I wonder if you could glue two chinese speedbooster infront of the sensor to use some decent lenses on it.

But we are still a few years away from that (14bit screens...) Anyway, today I took my German aunt to some sightseeing and she gave me her compact camera (some canon) to take pictures. Was defenitly fun but the lattitude is horrible. A compact viewcamera would be nice.

You have to press "OK" in live view, to change between exposure preview and the automode which is not the actual exposure (this later mode is the one that is on normally). You also have to check what kind of picture style you are using, if you have one with the birghtness,contrast,etc... pulled down you won't be able to check your exposure in liveview. You can even set a different white balance for the liveview which won't affect the one set on the top screen when taking jpgs. The viewfinders will tend to dissappear once EVFs stop lagging, I also prefer viewing the actual scene rather than a cooked 8bit signal. The problem with fast lenses is obviously not so great, for slower apertures there is the dof preview button on the front (although it gets darker). On the other hand real viewfinders are a big pleasure in medium format.