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The Elephant Trunk nebula is a concentration of interstellar gas and dust within the much larger ionized gas region IC1396.
SHO-combined
R : SII
G : Ha
B : OIII
Shooting Location :
* 51° N 3° E
* bortle class 5 backyard
Object Information
* Type : Emission Nebula
* Magnitude : 3.5
* Location (J2000.0): RA 21h 34m 58s / DEC +57° 30' 09"
* Approximate distance : 735 parsecs / 2.400 lightyears
Hardware
* Mount : Celestron CGX
* Imaging Scope : Sky-Watcher Explorer 150PDS
* Imaging Camera : ZWO ASI 183MM
* Filter Wheel : ZWO EFW 7*36mm + Baader Ha 7nm, Baader OIII 8.5nm + Baader SII 8.5nm + Baader LRGB
* Coma Corrector : Baader MPCC III
* Guide Scope : Sky-Watcher StarTravel 80
* Guide Camera : ZWO ASI 120MM
Exposures
* Single Exposure Length : 180sec
* Sensor Temperature : -20°C
* Gain : 111
* Offset : 10
* Light Frames :
> Baader Ha : 83
> Baader OIII : 56
> Baaser SII : 48
* Bias Frames : 100
* Dark Frames : 50
* Flat Frames : 100/channel
* Flat Dark Frames : 50/channel
* Total Integration Time : 9h21m
* Capture Dates : 2018-08-31 & 2018-09-01
Capture Software
* Sequence Generator Pro
* PHD2 Guiding
Processing Software
* PixInsight
* Adobe Photoshop
Ok now this was much easier than I originally anticipated. Had the camera on the tripod and put it in continuas shooting mode. The focus was set to manual so there was no focus acquiring delay between the shots. Opened the first two images in Photoshop. Selected the second image (cntr+c or command+c in mac) and pasted it on top of the first one. Then went to the layers menu and selected "hide all". After that I used the brush tool to reveal the second image and the first one stayed the way it was. Repeated this step for the rest of the 7 images.
January 2012,
Nikon D7000, Nikkor 18-105@18mm,
F/9, 1/1250s, 1600 ISO to compensate for the fast shutter speed.
Lunar Eclipse on 20th February 2008 taken from West Des Moines, Iowa.
This is the full sequence of full lunar eclipse. All taken from my Apartment room window.
Photo sequence of a humpback whale taken from a ferry in British Columbia, Canada.
Music is Horizons by Genesis
- Sequence of a life ... a life never lived ...........
cccccccccccccccccccccccccccccccccccccccccc..
- Secuencia de una vida..., una vida nunca vivida...........
cccccccccccccccccccccccccccccccccccccccccc
I was fortunate to capture the Olive-backed Oriole sequence of flight the other day when I went for a river walk. This was my first sighting of this bird and I captured it on different trees in different mannerisms. Lucky me.
Two and a half weeks ago, my brother, sister, and I took a short sibling vacation to Iceland. I am now uploading pictures from that trip.
Our first day we did the classic Golden Circle route: Þingvellir, Geysir, and Gullfoss before driving to Vik on the south coast for the evening. This, of course, is the middle stop, Geysir, although the actual geyser is called Strokkur (the bigger Geysir geyser has stopped erupting).
I struggled with how best to photograph and capture the power of the Strokkur geyser. It took a lot of patience to get a good sequence of shots like this, but with the gray, cloudy skies the images looked a bit flat out of the camera. I decided to go for a bit more extreme black and white look than I might typically use, and combine all my shots into a single image, to give the photograph enough visual oomph to match the actual experience of watching this jet of water shoot up into the sky.
Out in the sandy area, I asked Marketa to plow through the sand while I shot her. Little did I know that she was going to do a pirouette at the end, caught here in this sequence, before she came to the surface.
If you ever wonder why free-divers have safety divers, this sequence, top left to bottom right, should clear that up.Shallow water blackout left this man vulnerable but he was fine within a couple of minutes and will try again tomorrow at the Kona Depth Challenge 2018. Great job, guys!
Here's a composite of 5 shots that I took recently showing the landing sequence of a Hoverfly.
I have always wanted to take a Hoverfly shot with the fly hovering above the flower and my previous attempts have been a thumping failures.
This time around I made sure that I had the correct equipment (a strudy tripod) and , patience. Luckily the light was good and the Hoverfly was very persistent and helpful (very lucky me). I took more than 50 shots and was lucky to get at least 15 which had the fly in focus :-) It was challenging try to focus on the fly with a big lens in manual mode.
And yes, I have to work some more on my compositing skills...
Hope you are all having a great week!
My Flowers & Macro set.