Happy New Year 2018

Happy New Year 2018!


I can only hope that 2018 will be as successful as 2017 has been for what I do. ’17 was just a fantastic year with lots of events that basically triggered new events and created kind of a chain-reaction for new contacts and event shooting requests. This was a year full of great sailing events and densely lived photo shootings on water with copter flights and all the other tricks and using all this equipment that now is in my bag regularly. Winning the “Mirabaud” finally in November ’17 was a great peak level for 2017 and really has blown me off my socks when I had this telephone call. My first calendar project in November was really short-handed organized but I thought about it for a while now but never had the time to start it. This wasnt much different this year but it was time to get this “first” done now :-).

2018 planning is in full swing but there are some wild-cards at play in ’18 – the usual highlights are on the list and some more.

The 2017 retrospect of the German Classics goes here:



Year-End Coastal Meditation

2017 was also pretty much a year of testing techniques and discovering new perspectives. I spend a lot of time to find out how create new perspectives with copters under various circumstances on water. The most recent copters are a perfectly stabilized platform and this has some potentials for new visuals. The successful Mirabaud 2017 shot is likely one of the beste examples.  The platforms are however also perfectly useable as a stabilized platform for filming slow motions on water. I was testing some footage in summer 2016 for Slomo shootings but could not really find how to get stabilized sequences. A copter has not the capabilities to do tele kind of action shots but wide angle slomos come out nicely with the 120fps on 1080p footage recording. Its clearly compressed footage at 100Mbit bitrate and the sensors is also not a high iso wizard but somehow its easy to generate footage that reveals new structures and it should be possible to also get precise Slomos from fast paced sailing maneuvers.

Here a cut from summer 2017 where we spend some weeks in Scandinavia at the coast of West-Sweden and Skagen.

Likely best viewed when all the stress is over these days and with a single malt at hand at late night contemplations :)

Adobe Lightroom goes Subscription-Only!

Puh – this was bad news yesterday: Adobe published that Lightroom will be a subscription only software in the future. Lightroom 6.13 will be last stand alone update of Lightroom.

Subscription based software licensing is a no-go for me. I will definitely move away from Adobe in the next two years. With support of the D850 in Version 6.13 I will likely make the move by the end of 2018 or beginning of 2019  but I will definitely not buy myself into a cloud based licensing model.

” … a subscription model for catalog-based software is outrageous.” (a comment on PhotographyLife) I fully have to agree, Adobe just killed itself in some parts of the Pro market. So far I can only see “Capture 1” as an alternative. They will likely have a big smile on their faces right now. I will monitor the development of the catalog-based software solutions and will give some options a test drive – but … Adobe LR is not my future anymore – sorry Adobe – too much greed!  Good luck with that. mtc, Sören

Preparing for the German Classics

Right back from our Scandinavia tour! Shot a lot of these fantastic landscapes at the west coast of Sweden and than also some in the North of Denmark. The mixed weather was kind of cool for doing all sorts of things photographically – from under-water towards copter night time and sunset shots and also using slomos at the coast. I am also feeling much more confident now that the Phantom copter systems are dealing well with strong winds ;).

A shot from Hirtshals Fyr: – flying at night is likely the most exciting you can do with a copter.



Did also some footage with grading in Adobe AE towards nice slomos. I am still working on these but there will be a slomo teaser soon for this project. Its just a very cool feature that can be used nicely to visualize waves and coastal textures and I want to use the 12o fps in the future also for the sailing sport photography. This is clearly a domain where we can do much more – and better ;).


Right now: preparing for the German Classics 2017 – this is as usual one of these very big events. The forecast is kind of hinting windy conditions but this is pretty much expected this summer.

mtk – Sören

Copter based motion-time stacks

Some of the new interesting perspectives of copter based regatta and yacht photography clearly come with time series visuals – or as I would rather call it: “motion-time stacks”. Its not new in sports photography and with fast cont. autofocus and high speed cont. shooting speed we have seen it in motorbike sports, skiing , swimming and especially with athletics and dancing. The appealing aspect is that you can tell a (very short) story with these stacks. The image reveals a series of decisions and is much more than a capture of a specific situation.


With UAV visuals you can create comparable shots – mainly possible due to the precise GPS controlled position hold of the modern quadrocopters – especially the DJI Phantom series. The lat/lon/altitude position is very precisely corrected and together with the gimbal correction you have only minimal changes of the area covered with the FOV of your camera.  Combining different situations at the same position is more a question of how to post process the time series and how to combine the changes into one image. With the new Phantom copter generations you can easily leave the copter at a specific place & altitude and let it capture the scene while shooting with a DSLR at the water level.  The only problem are winds above 5Bf  and/or gusts that exceed 5-6 Bf. The copter drifts away and you would have to manually move the copter in S-Mode to get back to your start position. Flying freely without VR-googles is also not too much advised when you do not have constant visual control of the copter position. You easily loose track where the copter exactly is. The standard RTH function does not work on water (you usually drift on a small rib, when you trigger RTH the copter will fly towards the position where you have been – not to where you are now)  – though flying back to sender (and not to the start position) is helpful and implemented in a way as you can update the  “Home Point” manually in the Phantom series control software when you have a GPS enabled controller device (iphone/iPad). This can safe your copter because on water you easily loose track where exactly your copter is. RTH with the hover option enabled (you do not want the copter to land automatically!) is a great function as long as you update the home point regularly on the boat. Thats the function that I trained a couple of times for these not so nice moments when you believe that you lost control and the battery warning noise is slowly eating your coolness. Btw: updating the controller position should be set with a shortcut once selected – its the function that you want to trigger every 20sec or so on a boat. I dont understand why this is not already implemented in the DJI GO app.

The „Dynamic Home Point„ feature of the Inspire copter controller software (version update 29.05.17) is also a  very remarkable feature in that context. It updates the position of the „Home Point“ using the controller GPS information. The RTH function is in that form a really useful function again.  This is by far the most secure option for flights over water where you start from a boat but it doesnt create safe automatic landings on a moving boat! Landing is usually by picking the copter in air by hand. Its the reason why the Phantom series works well here: you can easily pick the copter up by its legs.

Some picture examples that I did in may/june 2017 to find out what is working are attached here. Imo you either fly very high (you need a permission for above 100m!) or very low – approx. 20m – to get exciting perspectives – the in between wont make it in my opinion. Low flying is difficult, you often  cannot clearly define the relative height difference to the boat rigs and you do not want to distract peoples attention. Very high positions are nice to capture the field at the start leg or at the luv position but even with the 20mm (equiv) of the P3 you will need 150-250m flight altitude – and clearly a BFA permission to go that high.

To create appealing visual compositions you have to pre-visualize the direction and possible crossings of the boats – that is really the most challenging part. I usually try to get a fixed position close to a turning point where maneuvers take place. There are endless option how to combine light and action into something appealing. With the wide angle 20mm equiv. camera system of the P3 one always collects sun glint that will mess up the stacking process later. Its hard to avoid but you can try to keep at least the action out of the glint region and it can be also nicely used as part of the composition.

With the new copter regulation in place for Germany its easier to do commercial/research work than it was before. Mainly because you do not need an allowance for every flight from the regional authority anymore. There is a general clearance for commercial flights below 100m, and below 5kg weight in place. Above 100m and in EDR zones and some other restricted region-types a special permission is needed (an insurance is also a given).

In Berlin the EDR4 is blocking the south-western part of the Havel – so everything west of the “Kälberwerder” island is very clearly within the EDR4 zone (a restricted flight zone around the HMI experimental nuclear reactor). For this year for the “Havel Klassik” regatta race I applied for a clearance (that I received already) because the interesting visuals are all west of the Peacock Island and fully within the EDR4 zone.








I will add some more shots here in the future to make this post a diary of the experiences with the P3A and the P4P from DJI. So stay tuned.


The new MBP “late 2016” – a mixed experience …

Have really fully settled on the OSX operating system and Apple hardware and in the last years I was indeed very satisfied – not necessary in terms of performance but clearly ergonomics and usability of the Apple ecosystem is working and most important it just lets you concentrate on doing things. Thats clearly what I learned to appreciate – and yes I also was a Linux fan in the early days and for mass satellite image data processing I am still using Linux servers as number crunchers but for everything else / DTP/Imaging the Mac is it – may be “was it”? The Late2016 version of the trusty workhorse the MacBook Pro is just a very mixed bag. Performance wise the fast SSD is nice and faster GraCa is good – so yes its faster but not by very much! Agisoft Photoscan is clearly very much accelerated – I guess by factor 2 (compared to the full speced-out 2013 model) but thats mainly due to the faster Radeon Pro460.

RAM/CPU performance / specs havnt changed much. Overall yes the system is faster / more responsive. I think the performance issue of the new MBP late2016 is the main issue with this MBP update but the reduction to USB-C, +the battery capacity issue – are just adding to this problem. Having 16GB RAM might seem to be enough for most but if you run a virtual machine often,  than 32 GB RAM provides a real speed boost – and its NOT an upgrade option with the new MBP late2016 version. With full res smart previews in Adobe LR and working with the full res original files this MBP seems to be just overstrained, as was my late2013 version of the MBP. You have to shutdown everything else to let LR run full throttle and this is using the GPU allready. Maybe LR ist not yet able to use the GPU to its full potential, but I hardly see a big speed boost compared to the MBPlate2013 – and the late2013 was also a fully out-speced MBP.

Look at how these different MacBookPro generations (that I used since 2011) compare: the 2010 17inch is still running without hickups.


Fig.: Below: Mid2010 17 Inch MBP, middle: late2013 15 Inch MBP, above: late2016 15 Inch MBP, what is next? I will clearly have to add a hyperdrive.

Continue reading “The new MBP “late 2016” – a mixed experience …”

Speeding up Agisoft Photoscan

For some of the copter data processing folks Agisoft Photoscan turns out to be the most important tool/software to calculate point clouds, orthoimages and nadir data mosaics from copter  photographs.

Problem: very long processing times with dense point cloud calculations with high or ultra-high settings (full resolution image matching with SfM (Structure from Motion) algorithms).

Some nice net finds show how multicore processing has its limits and why you should invest into GPU performance … and in high end 3D graphic cards.

Combining more than 20 CPU cores doesnt seem to speed up the process and combining more than 4 GPU systems also doesnt seem to help. There is only a minimal speed increase when you add more CPUs and or more GPUs when a 24 core system is already installed.


It boils down to a dedicated system with 2-4 Graphic cards with 3D acceleration (GTX-1080ti cards from Nvidea or if you can afford it a TESLA p100 based system), with approx 64-128 GB RAM and a dual i7 system setup.

mtk – Sören

Multi Copter Photography and Photogrammetry

Multicopter Photography and Photogrammetry


Late this year I bought a Phantom 3A (Advanced). The prices went down and these platforms are so affordable now that it makes sense to test it out.

The main applications for my work are multifolded:

  1. Special shootings for paying clients,
  2. regatta event shots from above,
  3. very early morning misty landscape stills and
  4. large scale or near range photogrammetric mapping for research purposes with applications in forest biomass mapping and archaeology as well as biotop-typ delineation and fine scale analysis of vegetation structure and slope stability analysis.

Clearly 1-3 and 4 will very nicely cooperate. Its just wonderful to experience how photography and research can come together here, makes me wonder sometimes how I managed to get into that cool spot where I get payed to fly a remote controlled camera … :-)


Being not new to copter flying, I found the Phantom 3 to be really easy to fly. Once you mastered the documentation and some basic theory about controlling a quadro-copter its really a simple excercise to control these devices. This is mainly due to the perfect GPS controlled position hold of the Phantom. It just stays where you put it (in opposite to gliders) and this makes it also kind of boring to fly a copter. The DJI GO app that is used on a mobile device to check the telemetry data and to control the lifeview provides a nice overview about position, viewing angle and overall status of your copter. You can also modify shooting parameters, change the camera viewing direction and check speed, height and remaining flight time, battery status and the number of satellites. Other apps support fully automatic mapping modes with variable overlap configurations (Data Mapper or Drone Deploy).

P3 installed on a LowePro backpack fully functional with installed props and ready to fly in a minute.

Some DJI Phantom 3 A Specs:

  1. Image Data capturing in 12MP Adobe DNG RAWs, gimbal stabilized! & damped. 2. HDR with 5 exposures each 0.7EV under/over-ex-> RAW DNG HDR computation. 3. Sony EXMOR 1/2.3“, 12.4MP, 94°lens (20mm focal length equiv. tilt.), ISO100-3200, 8-1/8000s, single shot, multiple shot, exposure series (3/5), DNG RAW format, video: FHD upto60p, 2.7k upto30p, 4. Memory: MicroSD up to 64GB cat10.
  2. Control: GPS/GLONASS controlled position hold, visual Realtime-Position-Tracking (VPS – Vision Positioning System) up to 3m flight alt. (P4pro: 10m). RTH (Return to Home Funktion), Battery Low RTH, Security-RTH, software controlled flight altitude (override possible): 120m, autostart/-landing, beginner modi, (OrbitModi/anti- collision (infrared/ultrasonic)/ActiveTracking/terrain follow: P4/pro/Mavic), P-GPS – GPS controled stabilising (+/-10cm position), P-OPTI (optical position control & stabilizing), P-ATTI modi (flight altitude only (barom.) – copter could start to drift).
  3. Flight parameters: weight: 1280g, climb: 5m/s, descend: 3m/s, Vmax: 16m/s (ATTI) – 60km/h, flight altitude max: 6000 m (airspace above 100 m needs a clearance (approval), RC max distance: 5km, flight time: 23 min (30min: P4pro), RadioControl: 2,4khz RC with iPad/iPhone (build in DJI Lightbridge System), realtime lifeview control per DJI GO App.



Continue reading “Multi Copter Photography and Photogrammetry”

Sailing Season Break

Winter break for the Yacht/Regatta racing event photo shootings. Good to reorganize, sending some stuff for repair and to rethink about some approaches. I will also give some other sports a try this winter – some other water related sports   … :)

Have been also looking into micro multicopter based photogrammetry with the Phantom lately – so there will be a small review about the capabilities here with more details soon.


Shots from Above

Am letzten Tag der J70 German Open gab es dann nochmal sehr wechselhafte Bedingungen mit mehreren Schauerzellen, die recht schöne Lichtmischungen mit der wieder durchbrechenden Sonne erzeugten. Nur für die Drohne war der Tag recht schlecht geeignet. Als dann endlich dauerhafter die Sonne durchkam, war die letzte Wettfahrt auch gelaufen. Durchaus ein Problem ist, das diese Drohnen einfach gar keinen Regen vertragen. Man kann daher bei etwas wechselhaften Bedingungen im Prinzip einpacken und sich auf etwas anderes konzentrieren. Hier ein Shot von der J70 German Open. Um das Maximum an Bildqualität aus dem bescheiden großen Sensor der Phantom 3 zu holen, muss man schlicht HDR Aufnahmen machen (ohne auch den klassischen HDR Effekt erzeugen zu wollen). Da die Drohne recht beeindruckend gut ihre Position hält und der Gimbal die Ausrichtung der Kamera korrigiert sind Mehrfachbelichtungen ganz gut möglich. Dieser Shot wurde allerdings erst im Post kombiniert. Das eröffnet einem eine ganze Reihe von Möglichkeiten bei der Visualisierung von Bewegungen. Bin mir noch nicht so sicher was alles letztendlich realisierbar ist. Im Prinzip muss man sich ja über dem Regattfeld positionieren und das ist überhaupt nicht vereinbar mit den Aufstiegsbestimmungen von Drohnen. mtk, Sören



J70 German Open 2016, Gr. Fenster/Havel/Berlin.