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Crystals of the Night - M32mm doing Milky Way

Started Jun 2, 2019 | Discussions thread
zero214
OP zero214 Regular Member • Posts: 238
Re: Crystals of the Night - M32mm doing Milky Way

Marco Nero wrote:

zero214 wrote:

Finally getting my hand on M32mm, and tried out the Milky on a clear night,

Despire seeing the faint nebula around Antares in the back of my camera, I couldn't make it pop in PP, must be doing something wrong.

The big bloat star in the upper right is Jupiter crossing the core, the nebulas in the core are so beautiful, just like crystals, I was thinking of astromodding my m6, but after seeing how much H-alpha response I can get even with one 50s exposure in the testing PP, I will keep it as it is.

I color some stars to blue to create constrast against the red nebulas in the core.

Enjoy!

44 mins data of 50s exposure, f/2.5, ISO 800, tracked using iOptron SkyTracker Pro, I do believe I can extract more details, just need a point to the right direction.

This is quite an interesting image you've captured. That's a LOT of exposure time. (44 minutes)!! It doesn't help us that Jupiter is still on the Galactic Core because it shines so bright. In my own shots, Jupiter seemed to come up bright blue.. but that might have been my WB choice. The same happened when Saturn was in the same spot a few years ago. It was also a bright teal color in some of my shots.
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I'm just guessing here but a higher ISO setting is more likely to pick up more of the Hydrogen-alpha 656nm emissions. ISO 800 may be necessary for longer exposures or stacked shots (I'm not sure). I seem to remember reading a couple of years ago that you don't really need special filters or modded sensors to reveal H-a nebulous material. You may also need to take several shots with either different WB options and/or different Kelvin settings. Light pollution may play a part in the blocking of some of the red spectrum. My use of a NiSi Natural Night Filter brought out strong reds near Crux in one of the EF-M 32mm shots I took. However, the WB setting I used may not have been ideal for separating those hues from the rest of the scene.
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I don't know if this will help at all because you've managed to draw quite a lot of color out of your shot already..., but here's an article about drawing out the Red Hydrogen-Alpha nebulas from an image without a modified sensor in your camera... I haven't directly used the information within myself, but it might yield some useful data...
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http://www.astropix.com/html/i_astrop/dslr_ha.html

Thanks, I'll have a look into it, I just hope for a better weather to blend into the night, I guess maybe ISO 1600 would be ok to bring out the faint nebula.

 zero214's gear list:zero214's gear list
Canon EOS R Canon EOS M6 II Canon EOS Ra Canon EF 400mm f/5.6L USM Canon EF-M 11-22mm f/4-5.6 IS STM +4 more
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