rawopint Time-lapse examples

c_joerg

My last time-lapse in the Wadden Sea

The photographs were taken in the years 2014 to 2017 at different times and sun positions.
All scenes except the last where made with rawopint. This can be seen on the pumping sun.

Shots in the Wadden Sea prove to be extremely difficult. Due to wind and weather and the strong current (about 4m tidal range) it is almost impossible to find a safe position for the cameras. It is very much post-processing necessary.

Due to the many movements, the use of long exposure times is almost impossible, but they are necessary to smooth the water to some extent. As soon as the water touches the feet of the tripod, it will vibrate.

The post-processing is very complex. First, the individual images must be aligned (image registration). Then I run a median on the images to eliminate birds and individual events. Finally, I smooth the scene by averaging several pictures (motion blur).

SkepticaLee

A little crazy to use rawopint in continuous mode for this, but here goes. Well-behaved lightning storm as timelapse:

https://www.youtube.com/watch?v=b3uy2AsfX7M
Camera Powershot A470, shooting continuously, ISO 800, shutter speed 1 s, shooting interval about 1.5 s. Post processing involved subtracting a median image of the 1100 images in the sequence from each image, followed by heavy wavelet-denoising (2% image magick).

reyalp

SkepticaLee
A little crazy to use rawopint in continuous mode for this, but here goes. Well-behaved lightning storm as timelapse:

That came out quite nice.

fixedint (https://chdk.setepontos.com/d/12695) might be better for this kind of situation, rawopint metering isn't likely to help the exposure.

c_joerg

SkepticaLee
Post processing involved subtracting a median image of the 1100 images in the sequence from each image,

How the median image does looks like?
I might even sort out some completely black pictures. The black images probably have the smallest JPG size.

reyalp
fixedint (https://chdk.setepontos.com/d/12695) might be better for this kind of situation, rawopint metering isn't likely to help the exposure.

I would agree with that. Just the individual flashes can bring the control quite confused.
https://chdk.setepontos.com/d/13330

reyalp

c_joerg
I would agree with that. Just the individual flashes can bring the control quite confused.
https://chdk.setepontos.com/d/13330

It might be interesting to think about what settings or variant of the script would work well for a thunderstorm through sunset or sunrise.

c_joerg

reyalp
It might be interesting to think about what settings or variant of the script would work well for a thunderstorm through sunset or sunrise.

I've been waiting for the thunderstorms, but they all passed by ...
The log file from @SkepticaLee might be interestingâ€¦.

The problem is similar to the moon when a cloud comes or fireworks. The dark phases increase the exposure massively, which then leads to overexposure.

I would work with the solution that I have already described here and that works quite well with the moon.
Reply #7
https://chdk.setepontos.com/d/12697/8

I work with two different "Max Ev change" values. One for positive and one for negative values. For the positive values I then set to 0. This then leads to the fact that in the dark phases, the exposure is not increased. It is important that the 'pre shoot' is not underexposed already. He should rather be a bit overexposed.

Of course, one could take alternative fixedint. Again, this would probably have a positive effect if you had an overexposure protection with histogram.

c_joerg

Some Time-lapse examples from EOS M3 + EF-S 55-250mm f/4-5.6 IS STM with 250mm (400mm equivalent focal length). The lens offers a very good price performance ratio. The lens flares keep within limits.

The colors are very extreme, but were not changed in the RAW development.

Especially with this focal length you should be very careful that the sensor and lens are not damaged. It is cautioned. In this video the maxim Sensor temperature was around 50 degrees Celsius. The local temperature on the sensor was probably much higher.

The interval for the first scene was 2.5s, for the other 1.5s.

In this video the birds were eliminated with a VirtualDub plugin â€˜BerconBirdRemovalâ€™. Basically, the plugin works quite well. However, the wings of the wind turbines were shortened as well. In this case, I took the wings from the video with the birds (merge 2 videos).
http://www.ylilammi.com/2013/12/bird-removal-from-time-lapse/

For comparison, here's a video (second scene) that I have recorded in parallel with the SX50. You can see the strong lens flares at the beginning of the scene.

rawopint_M3.zip

72.6KB

c_joerg

My first plant time-lapse with the SX230. The interval was 4 minutes (360 pictures a day). However, I only took every 2 pictures. Unfortunately, the Christmas cactus died after two weeks. I watered him too much. A cactus cannot get so much water 😉

The distance I did not choose correctly. The 16: 9 bleed has lost some of the cactus. Even with the background and the lighting, there is still room for improvement. I created the whole thing with a modified version of rawopint. This version prevents small changes in exposure. This led to this time lapse that the exposure has not changed at all. I this case I could use fixedint It was important to me in this case to see if it can come at this period without problems.

The sensor temperature was pretty much 50 degrees. No idea if this leads to long-term problems for the sensor.

Yimiblu

Good job friend!
Results are very interesting 😀
Would you consider sharing that modified version of the script, or, at least, sharing the parameters you used?

And, what about that 'temperature' issues? Could it be 'dangerous' in any way? and, what can we do to avoid that risks?

thanks!

c_joerg

Yimiblu
sharing the parameters you used?

In most of my post you will find rawopint.csv log files. You will find the settings in the log file. Itâ€™s always good to start with default params.

Yimiblu
And, what about that 'temperature' issues?

I donâ€™t care so much about it. My G1x was until 70 degree Celsius.

Yimiblu
Could it be 'dangerous' in any way?

Looks like that the camera has a temperature protectionâ€¦

Yimibluand, what can we do to avoid that risks?

Long exposure times keeps the temperature lowâ€¦

c_joerg

One of my latest time-lapse with rawopint. All settings can be found in the log file.

rawopint.csv

189.59KB

Mlapse

very nice video's, it makes me think that i should retry rawopint for my projects.

c_joerg

A few shoots from last year.
Created with Canon S110 / SX50 and rawopint.
The zoom time lapse was created with the rawopintz script:

https://chdk.setepontos.com/d/13403/5

c_joerg

My time lapse from the lighthouse Arngast and the Leitdamm in 2020. This time taken with an ND1000. With an interval of 5-6s and f8, the exposure time was 3s. As always with the G1x and the CHDK script rawopint.lua.

c_joerg

A collection of time-lapses. The videos were created between 2016 and 2020. Unfortunately, in the early days I only worked with JPG and not RAW. This is then reflected in the quality of some recordings.
The recordings were made with the Canon G1x, S110, SX50 and EOS M3.
The CHDK script rawopint.lua was used on 80% of the records.

c_joerg

A time lapse from EckernfÃ¶rde. The highlights are the rain cloud just passing me and the red sky at sunset.

The time lapse was created with the EOS M3 and the CHDK script rawopint.
Params can be found in the logfiles.

In this video I see a lot of artifacts (especially in the clouds) when I watch the video on YouTube on TV. I don't have the problem on the tablet. But I also set the highest quality there.

rawopint1.csv

86.96KB

rawopint2.csv

140.65KB

c_joerg

A time lapse of a sunrise...
The first scene was created with the EOS M100 and the EF-M Samyang 12mm F2.0. The other two scenes with the Canon G1x.
Everything created with the CHDK script rawopint.

Data:

1) Interval 6s, Tv max 4s, f22
2) Interval 2s, Tv 1/100s, f5.6
3) Interval 5s, Tv 1/60s, f8

rawopint_G1x.csv

154.24KB

rawopint_M100.csv

96.58KB

c_joerg

Unfortunately, I only had one attempt in Singapur and the weather wasn't the best, but I find the transition to night very impressive.
I took the pictures with 3 cameras at the same time.

00:00 EOS M3 + Samyang 12mm, Interval=5s, CHDK Script rawopint
00:27 EOS R + EF 24-70mm @40mm, Interval=6s, Deflicker with LRTimelapse
00:40 G1x @15(2😎mm, Interval=5s, CHDK Script rawopint
01:03 EOS R + EF 24-70mm @24mm, Interval=6s,
01:12 G1x @34(64)mm, Interval=5s, CHDK simple intervallometer in M

I did the parts with the EOS R with an external timer and manual exposure setting. I then removed the strong flickering with LRTimelapse.
Fortunately, none of this is necessary when working with CHDK and rawopint 😉

rawopint.zip

82.84KB

c_joerg

The video shows the construction of a timber frame construction house in fast motion. Recorded on 5 days with an interval of 10s. A total of around 28,000 recordings were made, of which around 10,000 were used in the video.
Recorded with the Canon S110 and CHDK script rawopint.

rawopint.zip

997.81KB

c_joerg

I took some time again for a time lapse...
A selection of time lapse from Laamu Atoll, Rahaa Resort Maldives.
All time lapse are made with Canon G1x and the CHDK script rawopint.
I also animated three still images.

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