Dumbell Nebula with a 70-200mm and a 2x teleconverter?

2 years 9 months ago #489789 by Stanly
And I'll be shooting with an D80, so I have the 1.5x crop going on.  Can you get any detail from shooting any Nebula's?  

Nikon FM10 | Nikon D80 | Nikon 50mm f/1.8D | Nikon 18-105mm f/3.5-5.6 AF-S VR | 35-105mm f/3.5 Macro | 80-200mm f/4.5 | SB600 | Pocket Wizard II
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2 years 9 months ago #489831 by effron
Not without a telescope and equatorial mount or the like....

Why so serious?
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2 years 9 months ago #489878 by KCook

effron wrote: Not without a telescope and equatorial mount or the like....

Plus a very dark sky!

Kelly

Canon 50D, Olympus PL2
kellycook.zenfolio.com/

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2 years 9 months ago #489888 by Jackson Rieger
:agree:  This nebula is something like 1,350 light years away from Earth.  You'll need a good telescope to see that.  


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2 years 9 months ago #490113 by Garbo
Wouldn't that be great if that was the case.  As mentioned, you'll need I'm guess around a 80 to 100mm refractor telescope to see something like this. 

Nikon D300: 24-70 2.8 | 70-200 2.8 VR |Sigma 150 2.8 | 50 1.4 | SB-800
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2 years 9 months ago #490137 by Zach Mosher
I have a question, how do you attach a camera to a telescope.  When a camera is attached to the telescope, is the eye piece removed?


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2 years 9 months ago #490148 by KCook

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2 years 9 months ago #490192 by Street Shark
Kcook, are you into astrophotography too?


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2 years 9 months ago #490214 by KCook

Street Shark wrote: Kcook, are you into astrophotography too?

Back at the dawn of time, yes.  Then it was my job for several years.  Then I moved on to other forms of madness such as landscape photography.

rambler

Canon 50D, Olympus PL2
kellycook.zenfolio.com/

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2 years 9 months ago #490215 by astrodave
OK here's a couple things on the topic. You can shoot the dumbbell (M27) but you will have to track the shot. With a 200mm and a 2x you are going to be shooting at f4+ depending on which lens you have. This is not a one shot object. You will need a couple hours of exposure as a minimum at f5ish. Take 1-3 minute individual shots and combine them with a stacking program.

One way to get way more luminance data to combine with the shot is a Hydrogen Alpha filter (probably about 12nm would be perfect) that you can stick in the camera. This would be huge for excellent detail but it will need a couple hours of exposure to. 

I'll stick up some of my astro shots and if you have questions just let me know.






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2 years 9 months ago #490222 by astrodave

Stanly wrote: And I'll be shooting with an D80, so I have the 1.5x crop going on.  Can you get any detail from shooting any Nebula's?  


I'd recommend NGC 7000 North America Nebula and it would include the nearby Pelican Nebula. They are both bright enough that a 3 minute individual shot would be very pretty. I'd also skip the 2x as with a crop sensor you are almost at 300mm which is not bad. Also much more forgiving of poor tracking / bad polar alignment than 600mm would be.

The link shows what the area looks like (not my photo) 

www.petergarbett.com/DeepSky/22c2ac50.jpg


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2 years 9 months ago #490229 by I shoot RAW

astrodave wrote: OK here's a couple things on the topic. You can shoot the dumbbell (M27) but you will have to track the shot. With a 200mm and a 2x you are going to be shooting at f4+ depending on which lens you have. This is not a one shot object. You will need a couple hours of exposure as a minimum at f5ish. Take 1-3 minute individual shots and combine them with a stacking program.

One way to get way more luminance data to combine with the shot is a Hydrogen Alpha filter (probably about 12nm would be perfect) that you can stick in the camera. This would be huge for excellent detail but it will need a couple hours of exposure to. 

I'll stick up some of my astro shots and if you have questions just let me know.






I'm so motived.  Now I thought the hydro alpha filter was for shooting into the sun?

Wasn't me :)
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2 years 8 months ago #490274 by Tim Dordeck
You get used to shooting beautiful things close to earth that you forget there  is so much incredible beauty in the sky


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2 years 8 months ago - 2 years 8 months ago #490373 by astrodave
No HA filters give you a look at Hydrogen Alpha emissions and really really nice B&W images.

In astrophotography (deep space) we use these as a Luminance layer to add detail.

The attachment is HA of the Rosette Nebula




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2 years 8 months ago #490376 by Conner
Hey Dave, how did you learn astrophotography? 


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