Wednesday, 1 June 2016

Nightskies with the Fuji X-Pro2


Pearly Beach Skies 1 - Fuji X-Pro2 + 16mm f/1.4, 32x8sec, f/1.4, ISO 3200

Thanks to Hein Hough from Fujifilm South Africa, I was recently able to borrow the new Fuji X-Pro2, together with the 18-55mm, f/2.8-4 and 16mm f/1.4 lenses. What a lot of fun I had!


I had the camera for a long weekend in Pearly Beach with the family, and most of my pictures were shots of my kids, so I won't post them here. But I did get one night of clear skies, where I could try out the 16mm on my panoramic head. The result is at the top of this post, and I'll explain how I made it below.



Quick impressions


You can read detailed reviews of the Fujifilm X-Pro 2 camera all over the net, so I'll just briefly give my own impressions here. The camera is tiny compared to my old Canon dinosaur, and it was a very pleasant experience to shoot with it. I can carry it all day. The viewfinder is excellent, although I'm a pedant when it comes to precise framing, so I found myself always using the electronic viewfinder.

The camera and lenses feel very solid and ooze quality, unlike many of my plasticy DSLR lenses. The image quality is, of course, amazing. 24 MP and no anti-aliasing filter is the norm these days, but it's much better than what I'm used to. The noise level is very low, and I got usable shots even at ISO 6400.

Would I buy one? Well, it's very expensive, and since I don't make full use of the wonderful (and expensive) optical viewfinder, the X-T1 would probably be better for me.

Lily Pad - Fuji X-Pro2 + 18-55, 1/640, f/5.6, ISO 400

At the end of the day, what impressed me most was the Fujinon XF18-55mm F2.8-4 R LM OIS, to give it it's full name. This "kit lens" blows all other kit lenses out of the water. It is tiny and solid, yet a stop faster than other kit lenses and the image quality is brilliant. This is probably the best reason to buy into the Fuji X system.

The making of the panorama



I found that the X-Pro2 with the 16mm lens are a small and light combination, and actually feel much better on my (somewhat lightweight) nodal point adapter than my old DSLR does. Also, with the large aperture (f/1.4) I could take much shorter exposures - 8 seconds instead of 30. This means the whole process went much quicker, so I could make more panoramas (I shot 4 in all).

Lightroom, part 1



32 shots in Lightroom, each 8sec, f/1.4, ISO 3200
I first imported all 32 exposures (2 rows of 12, and 6 straight up, and two unfortunate duplicates) into Lightroom 6, which I discovered doesn't have any saved lens profiles for Fujinon lenses. Oh well.






I boosted the shadows a bit, increased clarity and vibrance and fiddled with the white balance until I was reasonably happy. I then exported the exposures to 16bit TIFF files, and loaded them into Hugin.


Hugin


Hugin is a free frontend for the popular PanoTools software package. It was lovingly written by nerds for nerds. This makes it extremely powerful and versatile, but also quirky and often frustrating to use.

To my dismay, I discovered that the 16mm lens was slightly decentred (it was a rental unit, a previous user must have dropped it). This is normally not field relevant, but it meant that Hugin struggled to find control points in the sky, that is, points on different shots that correspond to the same point in the final image, and which should be made to overlap. Since the stars are pinpricks on one side of the frame (even at f/1.4 this lens is wickedly sharp), but blobs on the other side, they don't look similar enough to the computer, so I had to spend an hour or three manually adding control points.

Manually adding control points in Hugin

Once I had my control points, I could play with the projection and crop at my leisure, and quickly arrived at a composition that I liked. Then I fought my way through some more Hugin bugs (bad things happen when there's too much overlap, so I eventually threw out some of the exposures. Also, the latest enblend.exe has a bug causing it to produce low contrast output unless you run it with the --no-ciecam option, that took a while to figure out). And finally, after many failed experiments, Hugin produced the following:

Hugin output

I am especially happy with the composition of this one. I carefully positioned myself on the beach at a place where the Milky Way would touch the two ends of the beach. Those dark triangles on either side make the composition work. And yes, those are the two Magellanic Clouds in the middle.

Lightroom, part 2


Lightroom 6 has two huge advantages over previous versions. First, it knows the Fujifilm film simulation modes, so now I can have the wonderful Fuji colours in Lightroom - my little X100s has suddenly become far more useful.

Second, the Graduated Filter selection can now be edited with a brush. This is amazing - I no longer need Photoshop in my workflow!

So, I imported Hugin's output TIF file back into Lightroom, and the remaining adjustments literally took only a few minutes. I started with two graduated filters, one for the foreground and one for the sky.

Foreground adjustment selection


The foreground was lightened by one stop:



Then I selected the sky,

Sky adjustment selection

which got a bit of a contrast boost:



Finally, I made a few more global adjustments:

Cool it down and add more pop...


...darken the edges...


and a slight tone curve adjustment.
And voila!

Here is the final output.

I shot four panoramas that night, and have processed three of them thus far. Here are the other two, both given pretty much the same treatment (but I tried different exposure settings):

Pearly Beach Skies 2 - Fuji X-Pro2 + 16mm f/1.4, 32x4sec, f/1.4, ISO 6400

Pearly Beach Skies 3 - Fuji X-Pro2 + 16mm f/1.4, 32x8sec, f/1.4, ISO 3200

Once, again, my heartfelt thank to Fujifilm South Africa for lending me this gear. I also got to play with X-T1 and 56mm f/1.2 lens on another weekend. I should write about that experience another time. But for now, I'm off to Namibia tomorrow morning.