View Full Version here: : Arachnophilia
Slawomir
18-12-2014, 07:32 PM
Sharing my attempt at the Tarantula Nebula...
7hrs of 'sky data' collected on the 14th and 15th of December.
Any form criticism will be appreciated and valued :-)
Full resolution image: http://www.astrobin.com/141358/
Thanks for looking!
Slawomir
Placidus
18-12-2014, 07:59 PM
Superb! Some might complain that the very brightest bits are burned out, but I think that we all know what they look like, and it is more interesting to do what you have done: show the fainter bits and their relationship to the bright bits.
I'm assuming you've mapped it to achieve a "natural" look. Would you consider posting a version in Hubble palette?
Best,
Mike
RickS
18-12-2014, 08:15 PM
Very nice and crisp, Slawomir. I'd like to see more colour too.
Cheers,
Rick.
alpal
18-12-2014, 08:48 PM
Hi Slawomir,
It seems everyone has Arachnophilia. :)
There are infinite versions of this nebula.
The picture has lots of detail - it's nice & sharp.
I think you'll be like me & want to re-process your data.
I would try to handle the brighter areas by layering in an earlier version of the first stretched version with a blurred layer mask.
A colour boost in LAB mode might give you more colour but
then you'll get colour noise so you'll need to do a layer mask to only
reduce noise in the darker areas.
cheers
Allan
Slawomir
18-12-2014, 10:09 PM
Thank you gentlemen very much for your feedback.
I tried to better control the histogram and also adjusted colours a bit.
Full resolution version: http://www.astrobin.com/141358/B/
Thank you for helping me to get more out of my data :-)
Slawomir
alpal
18-12-2014, 10:24 PM
That's looking much better.
Slawomir
18-12-2014, 10:40 PM
The image is a result of LRGB combination from narrowband data. Unfortunately where I live light pollution is so intense that 12nm filters are inadequate, and having only one 3nm filter (Halpha) I use it as a luminance channel for the other two that are 12nm filters. This technique works okay for me, although I would love to be able to be able to create narrowband images, including Hubble palette, without blending.
May try to stimulate Hubble palette though :-)
Slawomir
PeterEde
18-12-2014, 10:40 PM
Stunning detail
Slawomir
18-12-2014, 10:43 PM
Thank you Allan :-)
In fact, I am still learning techniques and rules for 'composing' astro-images correctly, so feedback helps heaps.
Slawomir
18-12-2014, 10:44 PM
Thank you Peter :-)
Slawomir
19-12-2014, 01:08 PM
Hi Mike,
Unfortunately I was unsuccessful in creating a SHO image, mainly because signal from SII filter was very weak, so I added 80% Halpha to it.
The resulting image is not entirely in Hubble palette, but rather (S+80%H)HO.
http://www.astrobin.com/141358/C/
Wonderful detail Slawomir !
:thumbsup:
strongmanmike
19-12-2014, 01:42 PM
This version works well, great improvement over the original version too :)
Mike
gregbradley
19-12-2014, 07:42 PM
That's a sensational image. I was interested in seeing some images from an ICX814 chipped camera. Very detailed and 3D like.
FLT110 had TEC lenses at one point. Do you know if your scope has a TEC made lens?
Greg.
Slawomir
19-12-2014, 09:22 PM
Thank you Greg :-) I really like this camera and I am glad I chose it over QSI 660.
As for the lens, I think my telescope ( TS ED 102mm f/7 Refractor ) has about average quality lens, after all this scope costs about 800 euros...
Slawomir
22-12-2014, 12:43 PM
I made an attempt to liven up the image a bit by slightly modifying the histogram and giving the colours a boost...
http://www.astrobin.com/141358/D/
alpal
22-12-2014, 01:22 PM
Its' looking better & better.
If you'd used NASA Fits Liberator to stretch the FITS stacks with the function of x^(1/5) it would have done the hard stretching for you.
cheers
Allan
Slawomir
22-12-2014, 02:43 PM
Thank you for the hint Allan. Will certainly look it up.
RickS
22-12-2014, 03:33 PM
That's another nice improvement, Slawomir. Well done!
gregbradley
22-12-2014, 08:04 PM
I really like this image Slawomir. Its like one of those drunken modern art pieces that somehow capture your interest with colour only!
I find it quite vibrant, 3Dish and a very pleasant and unusual colour scheme with tiny stars.
Greg.
multiweb
23-12-2014, 08:53 AM
That's a great shot. Love the repro. Sharp details and very smooth. Top shelf. :thumbsup::thumbsup::thumbsup:
Slawomir
27-01-2015, 10:39 PM
Huge thank you to the IIS community for encouragment and feedback that has allowed me to win my first ever, but hopefully not the last, photo competition.
https://www2.physics.ox.ac.uk/blog/astro-blog/2015/01/27/stargazing-oxford-2015-photo-competition-the-winners
:thanx:
alpal
27-01-2015, 10:54 PM
Hi Slawomir,
Well deserved - you put a lot of time to get the processing just right.
I am trying to win one on Cloudy Nights but the sketches nearly always win.
cheers
Allan
DJScotty
27-01-2015, 10:57 PM
Congratulations good sir!
:thumbsup:
gregbradley
28-01-2015, 08:49 AM
Congrats on your win!
Greg.
RickS
28-01-2015, 11:17 AM
Congrats from me too, Slawomir!
strongmanmike
28-01-2015, 11:42 AM
Very cool :)
Mike
Andy01
28-01-2015, 05:03 PM
wahoo, well done :)
Slawomir
28-01-2015, 08:41 PM
Once again, thank you all for creating and maintaining such a supportive environment for amateur astrophotographers.
:thanks:
Ross G
30-01-2015, 10:00 PM
The Tarantula I have found is such a difficult object to photograph.
Your photograph is brilliant.
The best I have seen!
Ross.
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