This is a photo I took of the Horsehead Nebula and the Flame Nebula in Orion.
I used a Vixen Ed80sf refractor mounted on an Orion Sirius equatorial mount. (The mount tracks earth's rotation to keep the nebula in place). I used a stock Nikon D5300 as my imaging camera, and a SSAG for my autoguider. (for those who care)
The Horsehead Nebula is particularly challenging because much of its light comes in the form of Hydrogen Alpha light. (light emitted from ionizing Hydrogen). Modern Dslrs filter this kind of light for some odd reason, so I had to expose much longer to compensate for this loss of light.
Here are the full technical details:
Shot from the CalSTAR star party (SQM of 21.4) over the course of 2 nights.
Nikon D5300 (Non Modified)
Vixen Ed80sf (600mmfl)
St80 guide scope
Orion Sirius Mount
Hotech field falttener
70x420" Iso 800
For more space pictures... /r/astrophotography
Further technical discussion: http://www.reddit.com/r/astrophotography/comments/2ia9mw/ic_434ngc_2024_the_horsehead_nebula_and_the_flame/
More info on my blog: http://bersonicastronomy.com/2014/10/03/ic-434-the-horsehead-and-the-flame/