Stars over the abandoned Bunker

Description

I had been to the area several times before. I had recently made my first attempt at a Milky Way shot at the near Valdevaqueros Dune. After reasonable success with that one, I decided to try another type of night shot and capture some star trails.

I arrived before sunset. This is a popular local spot for photography and, upon arrival, I already found a group of four photographers getting ready for some light painting. I set my tripod on top of the foreground rocks and started shooting right before sunset, then waited for the group to end and started to shoot the stars.

My plan was similar to last time: to get a tack sharp shot of the bunker in the blue hour and then take at least some 100 shoots of the stars at 20-30 seconds exposure time to then stack them in post to get the star trails. I ended up taking 150 shots.

I shot the stars at 20-second exposures using again the Sony PlayMemories timelapse camera app was. Learning from the previous shot, I didn’t touch the camera during the whole sequence and let the app do its thing.

Developing Notes

I searched for software to stack the star shots and get the trails and decided on the free StarStaX. Pretty easy to use. You only have to load the single images, pick a couple parameters and let it do its thing. The end result shows the star trails.

So you get from 150 frames like this:

bunker_zahara_single

to something like this (in this case using StarStaX’s gap filling method):

bunker_zahara_starstax_gap_filling

The rest of the processing was similar to the previous one, blending this blue hour shot in:

bunker_zahara_blue_hour

and correcting perspective, white balance, shadows, etc for the blend to be realistic.

The light pollution, this time coming from the nearby city of Tarifa, didn’t annoy me, and I even tried to embrace it.

In this occasion, I had learned the lesson and didn’t touch the camera, nor the tripod… nothing! And I set it up in a very quiet spot and protected it from the potential wind hence I avoided the issue with foreground alignment I had last time when doing the blend (phew!)

The Milky Way over Valdevaqueros Beach

Description

Valdevaqueros is a wonderful beach in the South of Spain, pretty well know to kite surfers. It has a quite high dune on the East end of the beach. The dune moves quite frequently and it’s not unusual to find important amounts of sand on the road next to the beach and diggers removing it to allow cars to pass.

To prevent the dune from collapsing, fences were put in various places in the middle of it, but the strong winds and the dune moves, make them fall and break very frequently and they are no longer replaced.

Photo Story

After a few years spending the summer holidays in the area, I decided I wanted to try something new and attempt my first serious shot of the Milky Way. I had read and watched several tutorials and felt myself prepared. My landscape lens is not that fast (f4) but the Sony A6300 is quite capable in low light so I was determined to try and not to go beyond 3,200 ISO anyway.

I arrived well before sunset to scout the area for one last time before the shot and find a spot good enough to keep some of the fences on the foreground and the Milky Way as the background showing above them. I set there with my beach chair, my sandwich and some water expecting to enjoy the landscape in silence and having it for myself.

It was less than week before the peak of the perseid meteor shower and I also expected to see some of those, too. And I did. Just a couple but stunning.

What I was not expecting, and was an interesting addition, was that a nearby bar had organized a live rock show and I was entertained for free for about two hours in almost total darkness by the distant Spanish rock music.

I started to shot before sunset. My plan was to get a tack sharp shot of the fences in the blue hour and then the Milky Way over them a couple hours later to later blend them both with the best of each.

I shot some 250 frames at 20-30 seconds every minute over about 5 hours.  The Sony PlayMemories timelapse camera app was useful in this regard as it can automate this process as if it was an intervalometer. I was not that lazy so I was occasionally doing some manual adjustments from time to time with care not to move the camera.

Developing Notes

I’m using Affinity Photo as of late for my most complex photo editing and processing and this was what I used to make the blend.

I started with the foreground blue hour shot. I tried to find the one that was sharp enough, and not too warm so it could be then realistically merged with the Milky Way background shot.

José M. Alonso

I then went through all the Milky Way shots until finding one where the Milky Way would be right above the fence and providing a pleasing composition.

José M. Alonso

I created separate layers and used luminosity masks to make the blend.

All right so far, uh? Nope. Error.

My tripod is too light, there was some wind and I was manipulating the camera at times. Result: the tripod moved between shots and the alignment of the fence in both shots was not working.

valdevaqueros-fences-error

I had to spend a significant amount of time aligning both properly. Several hours. It was boring.

Lesson learned. Get a better tripod (I’ve just done it) and don’t mess around when the camera is taking long exposures.

Once that done I had to face an expected problem. The blue hour fence at f8 is much sharper than the Milky Way fence at f4, not to mention is much brighter. I created a mask around the fence mostly manually to then use a little bit of warp on the foreground to fill the gaps between the sharp and not so sharp fences. I hope it worked.

I was not annoyed by the light pollution. In case you wonder, the camera is facing the sea and beyond it, the African continent. The light comes from the city of Tangier, on the other side of the Strait of Gibraltar.

I’m pleased with the end result especially to be my first attempt.