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The Pinwheel Galaxy with small rig

Astrophotography DSLR
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#1 astrojaiphotography

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Posted 11 April 2021 - 04:21 AM

Very achromatic 80mm refractor (400mm focal length), unmodded t3i, SGP. 1 1/2 hours from the city (Bortle 7) and the rest from Bortle 1. I believe this image shows that small telescopes are more than capable of making nice images from targets that are usually considered unsuitable for the focal length such telescopes have.

 

https://drive.google...iew?usp=sharing


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#2 BQ Octantis

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Posted 11 April 2021 - 05:40 AM

Hear hear! I also shot the Southern Pinwheel Galaxy (there are actually two; this was M83) with a modest aperture:

 

(Click for full size.)

post-273658-0-53247900-1589810026.jpg

Canon 200mm f/2.8L II USM (~71mm refractor, 200mm focal length), Canon 600D/T3i (unmodded)

 

When you're no longer bounded by dogma or doubt, you discover there is so much more you can produce even without buying more equipment

 

BQ


Edited by BQ Octantis, 11 April 2021 - 05:42 AM.

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#3 jpengstrom

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Posted 11 April 2021 - 11:09 AM

Very achromatic 80mm refractor (400mm focal length), unmodded t3i, SGP. 1 1/2 hours from the city (Bortle 7) and the rest from Bortle 1. I believe this image shows that small telescopes are more than capable of making nice images from targets that are usually considered unsuitable for the focal length such telescopes have.

 

https://drive.google...iew?usp=sharing

Not that I have much experience taking or processing images, but that's a nice looking shot of M101, especially considering the focal length used to capture it!



#4 T~Stew

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Posted 11 April 2021 - 11:10 AM

Very achromatic 80mm refractor (400mm focal length), unmodded t3i, SGP. 1 1/2 hours from the city (Bortle 7) and the rest from Bortle 1. I believe this image shows that small telescopes are more than capable of making nice images from targets that are usually considered unsuitable for the focal length such telescopes have.
 
https://drive.google...iew?usp=sharing


I'm in the process of editing my take on the pinwheel (northern) too... also using modest 400mm Canon lens (f5.6, so around 71mm) and SGP. It looks quite nice I think! These smaller lenses can do ok, just won't be very zoomed in on the subject. Can crop tightly to get a good view of the galaxy or present in full frame when screen resolution allows to see all the other little galaxies caught in the frame. Actually, as a test, I've imaged M101 now several times with a few combos... 400mm, 400mm w/ 2x teleconverter, and bigger 300mm f2.8 with a 2x teleconverter. Still processing all the data to compare. But looks like they all produce decent images.

 

I think your biggest disadvantage is bortle 7... but if you can get time at bortle 1 that is amazing.


Edited by T~Stew, 11 April 2021 - 11:11 AM.


#5 chanrobi

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Posted 11 April 2021 - 09:49 PM

Very achromatic 80mm refractor (400mm focal length), unmodded t3i, SGP. 1 1/2 hours from the city (Bortle 7) and the rest from Bortle 1. I believe this image shows that small telescopes are more than capable of making nice images from targets that are usually considered unsuitable for the focal length such telescopes have.

 

https://drive.google...iew?usp=sharing

Pfft

 

I've shot m101 with a 135mm lens

 

400mm is hubble telescope in comparison


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#6 chanrobi

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Posted 13 April 2021 - 02:04 PM

Hear hear! I also shot the Southern Pinwheel Galaxy (there are actually two; this was M83) with a modest aperture:

 

(Click for full size.)

post-273658-0-53247900-1589810026.jpg

Canon 200mm f/2.8L II USM (~71mm refractor, 200mm focal length), Canon 600D/T3i (unmodded)

 

When you're no longer bounded by dogma or doubt, you discover there is so much more you can produce even without buying more equipment

 

BQ

Is that CA from the lens or post processing?

 



#7 BQ Octantis

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Posted 13 April 2021 - 04:10 PM

Lens. That's almost 200% scale, and I shot it wide open. If I were to do it today, I'd just remove the stars and add back a subset as smaller, less bloated spheres (captured separately with an aperture mask). That's the trouble with processing…when you learn a whole new workflow, do you go back and fix all your old images?


Edited by BQ Octantis, 13 April 2021 - 04:15 PM.


#8 galacticinsomnia

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Posted 13 April 2021 - 08:02 PM

Looks good ! 

Love seeing people producing what they enjoy.. 

Clear Skies !



#9 vidrazor

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Posted 14 April 2021 - 12:01 AM

Very achromatic 80mm refractor (400mm focal length), unmodded t3i, SGP. 1 1/2 hours from the city (Bortle 7) and the rest from Bortle 1. I believe this image shows that small telescopes are more than capable of making nice images from targets that are usually considered unsuitable for the focal length such telescopes have.

https://drive.google...iew?usp=sharing

Nice shot! You have a lot more data in there, you should try to get it out.
 




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