After days of grey, clouded skies, last night’s sunset was finally visible. So I positioned my camera in my window frame and let my laptop take 200 photos in a little over an hour:
DSLR recording the sunset
When played at 20 fps, last evening’s sunset in timelapse looks like this:
Also, I worked a little more on my Dumbbell Nebula and got a pretty decent result considering the relatively low number of short exposure frames. After stacking, I masked out some of the noise, applied some high-contrast tone curves and made a star overlay, which makes the stars ‘pop’ and even makes them somewhat hexagonal (round with 6 small diffraction peaks due to the 3 bars in my telescope).
Stack of 41 x 0.8sec exposures
For reference, the original unprocessed frames look like this:
Single unprocessed frame
After exposure adjustment and noise reduction of the reparate images, they look like in the video below. The final image is the stacked image above.
A few days ago I finally got a Digital Single-Lens Reflex (DSLR) camera; a Canon 1100d with a 18-55mm zoom lens. It is the very first SLR camera that I ever took photos with, so the whole thing is quite new to me. On of the first pictures I took was this sunset image, which (accidentally) also shows 5 swallows hunting for small bugs.
One of the first photos I took using my new Canon 1100d DSLR
One of the best things about DSLRs is the ability to take long exposures. So I tried to take one. I found that focussing is difficult and that I should use as low ISO values as possible to reduce noise and skyglow. The image below is a 30 second wide field exposure at ISO800. I reduced the image size to 25% to hide star trailing (stars that seem to move due to the earth’s rotation) and the effects of my poor focussing. Next time I wil use live view on my laptop to get focus right and operate the camera without physically touching it. Later this week I expect to receive the rings required to attach the DSLR to my telescope. I’m looking forward to using that combination 🙂
Wide field 30 second exposure at ISO800 with 18-55mm zoom lens at 18mm.
Last Monday, I was traveling home towards Amsterdam by train when I saw this beautiful sunset. At that time I was still awaiting delivery of my DSLR, so I used my iPhone to take this shot.
Setting sun shot with an iPhone from a train moving at 140kph.
Another iPhone photo I took was of the Yucca that was on the verge of blooming last week. This time it is finally in bloom after the stem had been developing for months.
The Yucca from earlier, now in bloom.