Category : Deep Sky Objects

IC405 Flaming Star Nebula using Geoptik Adaptor Canon Lens

This was my 3rd image using the Geoptik adaptor and my Canon 70-300mm lens. For IC405 Flaming Star Nebula I decided to move to 200mm zoom, I had tried 200mm on IC405 on the 1st night and I was not happy with the focus, or the shape of the stars. On the 2nd night my TeleFokus from Telescope Service arrived to make focusing easier (but more about that in a later post).

This time on 200mm I set the f stop to f/7.1 I was worried about going any slower than f/7.1 as I would be gathering less light and losing sharpness.

I ended up binning 2×2 and taking 300 second exposures. This image below of IC405 Flaming Star Nebula included about 20 exposures. This was also guided this time. I am still not sure about it, but may add OIII exposures to produce a bi-colour image to see if that improves it. I have also been looking at expensive Canon lenses now, like the Canon 200mm f/2.8 prime lens and the Canon 70-200mm f/4 lens.

IC405 Flaming Nebula

Orion Nebula and Horsehead Nebula

Orion nebula and Horsehead nebula in Hydrogen Alpha. I used a Canon 75-300mm lens set to 100mm at about f6 attached to a cooled CCD camera via an Geoptik adaptor. This image was consists of 15 x 300 second exposures unbinned that were also unguided.

The Orion nebula has always been tricky as it’s core is so bright. This was still a problem in this widefield image, as Orion is still bright and the Horsehead is very dark. I still used DPP in Maxim DL when processing this, then just tweaked the levels, brightness, contrast and sharpened it in Photoshop.

Orion Nebula and Horsehead Nebula

Heart and Soul Nebula IC1805

Heart and Soul Nebula IC1805 in Hydrogen Alpha. I used a Canon 75-300mm lens set at 100mm. The Canon lens is attached via a Geoptik adaptor to an Atik 460EX mono camera.

This image consisted of 10 x 600 second exposures taken on a Skywatcher EQ8 mount. The images were unguided, but I did see some drift across the exposures so I would guide next time.

It’s really difficult to focus precisely with a standard Canon lens, especially in Ha when you need greater exposures to make out the stars on the screen.

IC1805 Heart and Soul Nebula

Heart Nebula started

I did manage to get out last night and start on the Heart Nebula, only about my 2nd imaging object this winter season.

But it’s so big though I can’t fit it all on the chip with the 6MP Atik 460ex camera using my Altair Astro 80mm triplet refractor with a Televue x0.8 reducer. I might try the Astro Physics 0.67x reducer I have that I use on the Altair Astro 8” RC, even though it wasn’t designed for the 80mm, I may test it out to see if I can fit more of the image in.

Next just need to do either RGB frames or OIII frames. Shown below is just 23 Ha frames of 300 seconds each binned (uncalibrated).

IC1805 Heart Nebula

Horsehead Nebula and Flame Nebula

Horsehead Nebula and Flame Nebula taken on 6th January 2015. Taken in Ha, 14x5min frames, on an Altair Astro 80mm Triplet telescope with Televue x0.8 reducer, Atik 460 mono camera and EQ8 mount.

Horsehead Nebula and Flame Nebula

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