Orion Constellation

CCD vs Film? Lots of time vs no patience? Alright, this is your place to discuss all the astrophotography what's and what's not. You can discuss about techniques, accessories, cameras, whatever....just make sure you also post some nice photos here too!
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weixing
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Orion Constellation

Post by weixing »

Hi,
Orion Constellation
Image
Shooting Info
Camera: Canon 450D + EFS 18-55mm F3.5-5.6 IS @ 30mm
Exposure: 25 x 180s Unguided @ ISO 200 F6.3

Initially, plan to shoot M45 (Pleiades or Seven Sisters) open star clusters again using my EFS 55-250mm IS lens, but some problem with the polar alignment, zoom creep, focus creep and getting too late (need to work next day), so in the end decided to shoot the Orion Constellation.

No flat frames applied as it created a lots of strange artifact... not sure why?? [smilie=confused.gif]

Anyway, result was better than I expected. :D

Hope more clear nights ahead.

Have a nice day.
Yang Weixing
:mrgreen: "The universe is composed mainly of hydrogen and ignorance." :mrgreen:
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yybmage
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Post by yybmage »

Excellent work!
Blast off!!!!!!!
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universe24
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Post by universe24 »

I would expect even better with 25 x 180s...what software use to process? Any dark frame substraction?
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weixing
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Post by weixing »

Hi,
universe24 wrote:I would expect even better with 25 x 180s...what software use to process? Any dark frame substraction?
It'll be easily better if taken from a dark sky.... too bad we don't have that in Singapore. Below is one of the original image:
Image

I calibrated the RAW images in IRIS... got dark frame subtraction.... just skip the flat field correction. Export to Photoshop for final touch up... didn't push the processing too much as it's don't look nice.

Have a nice day.
Yang Weixing
:mrgreen: "The universe is composed mainly of hydrogen and ignorance." :mrgreen:
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wucheeyiun
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Post by wucheeyiun »

Its actually quite good, to get this clarity in Singapore sky... :0
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weixing
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Post by weixing »

Hi,
Its actually quite good, to get this clarity in Singapore sky... :0
Ya lor... :) especially after so many weeks of no stars night.

Have a nice day.
Yang Weixing
:mrgreen: "The universe is composed mainly of hydrogen and ignorance." :mrgreen:
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Psycho
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Post by Psycho »

Thats is an amazing shot!!

When does the Orion Nebula start to become visible in Singapore? Around January?
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superiorstream
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Post by superiorstream »

Hi,Psycho
As of today Orion is visible early morning from 5am in Singapore.Thanks
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cataclysm
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Post by cataclysm »

Nice shot Weixing! Alwas a chellenge to get good widefield shots form our horrid sky. Last night was really cloud free....... [smilie=good-job.gif]
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weixing
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Post by weixing »

Hi,
cataclysm wrote:Nice shot Weixing! Alwas a chellenge to get good widefield shots form our horrid sky. Last night was really cloud free....... [smilie=good-job.gif]
Last night was clear, but it was a weekday night leh... [smilie=crying.gif]

And as per usual, thunderstorm now after a clear night... sian.. [smilie=crying3.gif]

Anyway, I recently reprocess the above image trying to get rid of the red band cause by the light pollution and high cloud. The result is cleaner background, but the stars look dimmer now.
Image

Have a nice day.
Yang Weixing
:mrgreen: "The universe is composed mainly of hydrogen and ignorance." :mrgreen:
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