Nikkor

The mamiya 80 1.9 has a tendency for busy bokeh, but the Adapter might be increasing the problem. For very wide blurry lenses there is no Alternative in 645, apsc or m43 to 35mm fullframe. I also enjoy wide street fotography fullopen. Here a sample on a d800, 28mm 1.4 (this would be a 14mm 0.7 on m43)

The Pentax 645d has a bigger cropfactor than this speedbooster. Even the most expensive backs are not really fullframe 54mm vs 56

That's because mattias didn't shoot at the same Subject to Lens distance as he has stated in his post. All I can say right nos from those pica is that tmax is amazing even if long expired,and that the boxy formfactor of the 645pro is actually pretty handy compared to the fiddly a7 :p

This is the Forum to discuss it, a subforum only works if there is a very bog interest. I recently Shot something for personal use and the iPhone Software does wonders with the small Chip, and the sound is better than anything my Stills cameras spit out with the internal mic (the Software does a good Job to cancel out noises)In the end it saved me a lot of time. I was wondering if the Filmic Pro App really permits to disable the stabilization to avoid the heavy crop.

For example in the shot wehre GP is on the bed, her face is in focus but the sheets on the left and right that are in Focus are 10cm or more behind the face.

Field curvature is when the focus plane has curvature and turns into a Shell from a sphere. This is very notorious on portrait/body Shot distances and will make the focus distance be different in the corners compares to the center (plus swirly bokeh in extreme cases)

Nice, but please check for fieldcurvature introduced by the adapter. (Also distortion, against a brickwall) I know these things don't matter for the look you seem to be after but they do if you want to replace a real medium Format Camera with this.

I can offer you 15.000$ but you have to send me the Lens first so I can check it out before paying.

Dealing with Video for stills is total pita unless you are shooting bursts anyway. Videos in general are a pain in the ass because you have to watch the whole thing to get the information you need, which takes a lot of time. Obviously it can be handy to have a Video to pull stills from, but stills are way more productive in the Long run, so it's not something that is going to dissapear

Can't wait for this part, if you take the same picture in the tricky situations for swirly bokeh it would be even nicer. I was really looking forward to this adapter but after seeing samples it just reminds me of the cheapo chinese focal reducers.

"Destroys" because it takes a very good lens and degrades it's image quality.

It obviously is an issue, because the adapter has a bad design, it takes a good lens and destroys it. If you like swirley bokeh or don't give a shit about quality, have fun,but obviously that's something that has to be said when "reviewing" an adapter. Swirley bokeh has nothing to do with medium format, some old lenses like the tessar you are showing will have swirley boleh, the same way as some old Cmount lenses have it, but the mamiya macro lens from the 80's doesn't have it, it's the adapter that introduces it.

Thank you Captain Sweden for thanking me for respecting other people having an opinion.

You can print the ratio you like mattias, you can even print anamorphic if you like, you can eat them afterwards if you like.

It's not really about opinion, btw, check out that lens on film, you will see it's not that bad. Macrolenses are designed to have a flat field, the swirley bokeh your pictures are showing is similar to what my cheap chinese canon eos m speedbooster does with nikkor glass.

6x7 is also the IMAX format (except for the sprocket holes in the imax film 70x48.5mm vs 68-72x56mm). The Batman and Interestellar IMAX scenes are pretty impressive, and no, the mamiya lens doesn't show any strange fieldcurvature, and it's being used way over it's pretended image circle.

645 is the aps-c among medium format, 6x7 is the ideal format for printing (and larger than 645) ,etc... 6x6 and 6x9 are the odd sizes which waste film unless you really need the crop options, or use that weird ratio in some digital medium. Fieldcurvature in a macro lens? I doubt it.

I hope metabones comes up with a good speedbooster which doesn't introduce that kind of fieldcurvature or whatever that is, or even better, make one for the fuji gx to use 6x7 glass, much more exciting than 645.

If you find a way to mount them, it will work with any lens that has a long flangefocal distance.

Swirley bokeh Field curvature on a macrolens

If the stabilization is Software I don't think it will be Applied to undebayered Data because normally it implies rotation,etc. Maybe they could write the Data from the giroscope to a file and use that for a Software stabilizer on the Computer. But those are many Maybes.

software stabilization raw Video hack? No.

This is totally pointless, there is no difference between formats

Digital stabilization 1080p, wow so exciting (for us)

Hmm, I don't know. But if Nikon made a Full Frame Camera with a 4:3 aspecto Ratio 36x28 sensor, with a few leafshutter lenses, and some good 4K you can pull stills from (Compressed raw) a good body and they would position themselfs in the pro market they started to entre with the d800 but will lose to the A7rX and the new Medium Format cameras. The AF has to be top. Oh, and a bright 1:1 opticalviewfinder,not that tiny crappy thing they have right now.