The GX85 "Super-16" project

[kye]

21 hours ago, PPNS said:

looks nice, hides the clipping well

Thanks!  The colour part of the emulation (which has the rolloff in it) is just a preset in the Resolve Film Look Creator (IIRC the Fujifilm one, but if not that one then it'll be the Kodak one).  

Other parts of the emulation I've had to go DIY and disable those parts of the FLC, but no-one has said anything bad about the colour profile so that seems to be good.

6 hours ago, Clark Nikolai said:

In my opinion, you've made it there!

Thanks!

I was just thinking about where it's at and next steps and I realised that there are a few things I hadn't done yet, but feedback suggests that it's fine how it is, so that's amusing.  One of the things I had noted was that apparently the size of the grains is different in the shadows vs highlights, so I was thinking about different ways to implement that, but maybe I just won't bother!

[Clark Nikolai]

2 hours ago, kye said:

 One of the things I had noted was that apparently the size of the grains is different in the shadows vs highlights, so I was thinking about different ways to implement that, but maybe I just won't bother!

Probably anything you do from now on is just for fun.

What ways would you implement this? If it was me it would be a two or three layers, each with a lumakey for a brightness range, then different grain size on each one.

[kye]

12 minutes ago, Clark Nikolai said:

Probably anything you do from now on is just for fun.

What ways would you implement this? If it was me it would be a two or three layers, each with a lumakey for a brightness range, then different grain size on each one.

I'd use a little known plugin called Tilt Shift Blur (TSB), which comes with Resolve but is very special in a critical aspect.

Normally if you have a node and give it a key then the node calculates things as normal and then uses the key as a transparency effect, so if you used a large Gaussian Blur and gave it a key then you'd get a huge blur mixed with the sharp image at the level of transparency the key dictated.  However, with the TSB, the key defines the size of the blur, so you can vary the size of the blur that way.
For this purpose I'd give it a luma key of the image and adjust the contrast and amount to control the relative amount of blur between the lighter and darker parts of the image.

The TSB is what I use to soften the edges of the frame in my lens emulation nodes, which allows there to be no blur in the centre and it gradually transition to having a larger and larger blurring towards the edges.

The fact that the key input acts as a transparency control really doesn't make much sense when applying most OFX plugins and I'm surprised they haven't made more of them smart like the TSB one where it uses the key as an input to control one or more of the OFX parameters.

[PannySVHS]

@Framed_By_Dan

Afaik the Lumix GX9 has a 1:1 readout in 4K, covering exactely S16 image width, with a 2.8 crop of FF. So even a 10 or 12mm S16 lens should work perfectly in 4K.

[Framed_By_Dan]

6 hours ago, PannySVHS said:

@Framed_By_Dan

Afaik the Lumix GX9 has a 1:1 readout in 4K, covering exactely S16 image width, with a 2.8 crop of FF. So even a 10 or 12mm S16 lens should work perfectly in 4K.

I've always tried to figure out what the crop was in 4K.

Always assumed it might have been 2.3x, similar to the GH4 but it definitely feels a bit more than that.