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Orion Nebula


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'First light' from my 10 inch reflector mounted on my new concrete pier.

( Higher qualiy image :



Nikon D5300 (unmodified)

Baader UHC-S nebula filter

PHD2 guiding

0.5, 8, 30 & 120 sec exposures (up to 20 of each) at ISO800

aligned and stacked in Nebulosity


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Thanks David, and yes I did use photoshop.

I stacked the different exposures in separate groups and the stacked the groups. I only stretched the longest exposure group. Taken together, this achieved the large dynamic range.

The rest was in photoshop.

- adjust red, green and blue levels of the background to give me a neutral colour balance in the shadows.

- adjust RGB level to further bring out the midtones

- and then a little bit of noise reduction and gentle sharpening

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Cheers Peter. I'm glad you liked the frame - some don't for some reason. I started framing my images ages ago as it overcomes the issue of uncertain and often ugly page backgrounds that don't suit every image and often clash.

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