Hi,
This is the first target I took during the clear night on 24 Jan 2011. Intend to shoot at F6.3, but forget to switch back to F6.3 after testing the F8.0. Don't really like the "look" of the diffraction spikes cause by the Canon 400mm lens at F8.0... hopefully the spikes will not look so "unnatural" when I try to reshoot at F6.3 next time.
Anyway, for those who are new to Astronomy, this is a very beautiful and bright open star cluster in the constellation Taurus and can be easily seen using naked eye even in Singapore. For those who own a Subaru car, the car's logo is base on this open star cluster as "Subaru" is the name for Pleiades in Japanese.
Pleiades or Seven Sisters (M45) Open Star Cluster
Lens: Canon EF 400mm F5.6L @ F8.0
Camera: Mod Canon 450D
Mount: Vixen GPD mount (unguided)
Location: Tampines, Singapore
Image: 60 images x 2 minute exposure @ ISO800
Have a nice day.
Pleiades or Seven Sisters (M45) Open Star Cluster
- weixing
- Super Moderator
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- Favourite scope: Vixen R200SS & Celestron 6" F5 Achro Refractor
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Pleiades or Seven Sisters (M45) Open Star Cluster
Yang Weixing
"The universe is composed mainly of hydrogen and ignorance."
"The universe is composed mainly of hydrogen and ignorance."
- CHINKAHSHIUAN
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hi wei xiang, i have one question here, you said "Image: 60 images x 2 minute exposure @ ISO800", mean you have 60 photos and total is 2 minutes exposure? can you explain it to me? I am a beginner here.. thanks..
KS.Chin
Celestron CPC 800
WO Megrez 72mm Doublet DDG
Celestron SkyMaster 15x70 binocular
Blog: http://ksastronomy.blogspot.com
"Learn together, Share Together"
Celestron CPC 800
WO Megrez 72mm Doublet DDG
Celestron SkyMaster 15x70 binocular
Blog: http://ksastronomy.blogspot.com
"Learn together, Share Together"
- weixing
- Super Moderator
- Posts: 4708
- Joined: Wed Oct 01, 2003 12:22 am
- Favourite scope: Vixen R200SS & Celestron 6" F5 Achro Refractor
- Location: (Tampines) Earth of Solar System in Orion Arm of Milky Way Galaxy in Local Group Galaxies Cluster
Hi,
Have a nice day.
It's mean 60 images of 2 minutes exposure for each image. Total integrated exposure is 120 minutes.CHINKAHSHIUAN wrote:hi wei xiang, i have one question here, you said "Image: 60 images x 2 minute exposure @ ISO800", mean you have 60 photos and total is 2 minutes exposure? can you explain it to me? I am a beginner here.. thanks..
Have a nice day.
Yang Weixing
"The universe is composed mainly of hydrogen and ignorance."
"The universe is composed mainly of hydrogen and ignorance."
Nice stuff there, weixing! I'll be looking forward to the f/6.3 one! Btw why not shoot at f/5? Is it because you like the diffraction spikes at f/6.3?
And since I've moved completely into photography, if I were to shoot at the same settings as you with a non-modded camera, would I be able to achieve the same image?
Regards,
Zane
And since I've moved completely into photography, if I were to shoot at the same settings as you with a non-modded camera, would I be able to achieve the same image?
Regards,
Zane
- weixing
- Super Moderator
- Posts: 4708
- Joined: Wed Oct 01, 2003 12:22 am
- Favourite scope: Vixen R200SS & Celestron 6" F5 Achro Refractor
- Location: (Tampines) Earth of Solar System in Orion Arm of Milky Way Galaxy in Local Group Galaxies Cluster
Hi,
I like to have some diffraction spikes on the brightest stars... Anyway, just check some test shots I took on that night and it's look like the F6.3 spikes will look just as bad... I think I'll reshoot at wide open(F5.6) next time which will have no diffraction spikes.
Have a nice day.
Zephyrus wrote:Nice stuff there, weixing! I'll be looking forward to the f/6.3 one! Btw why not shoot at f/5? Is it because you like the diffraction spikes at f/6.3?
I like to have some diffraction spikes on the brightest stars... Anyway, just check some test shots I took on that night and it's look like the F6.3 spikes will look just as bad... I think I'll reshoot at wide open(F5.6) next time which will have no diffraction spikes.
Yes... should produce similar result.Zephyrus wrote: And since I've moved completely into photography, if I were to shoot at the same settings as you with a non-modded camera, would I be able to achieve the same image?
Regards,
Zane
Have a nice day.
Yang Weixing
"The universe is composed mainly of hydrogen and ignorance."
"The universe is composed mainly of hydrogen and ignorance."
- timatworksg
- Posts: 767
- Joined: Mon Feb 01, 2010 9:42 pm
- Location: Pasir Ris
I like the way you maintained the colour of the stars even after processing.
Even at F8, your image look fantastic. I am sure the nebulousity will show up very well when you set at F5.6. And you took this in Singapore! If taken somewhere darker, the image will be awesome.
I am sure you knew this, but you can still get the spike by attaching strings across your lens.
Even at F8, your image look fantastic. I am sure the nebulousity will show up very well when you set at F5.6. And you took this in Singapore! If taken somewhere darker, the image will be awesome.
I am sure you knew this, but you can still get the spike by attaching strings across your lens.