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Dolphin Head with surroundings, Sven Eklund

Dolphin Head with surroundings

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Dolphin Head with surroundings, Sven Eklund

Dolphin Head with surroundings

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Description

I am not a fan of starless images, but this turned out so nice without the stars that I wanted to publish it like that.

The image is a result of a filter testing session for my Hyperstar setup. The fast optics of the Hyperstar (f/2) shifts the incoming light out of the narrow bandpass of my normal 3nm Chroma filter and Chroma themselves claimed only 50% transmission. So, despite the reputation of the Baader Ultra-Highspeed filter, I got a set and tried them out. And they do deliver! See the two subframes below:


120s Chroma Ha 3nm:
Chroma 3nm.jpg

120s Baader Ha Ultra-Highspeed 4nm:
Baader.jpg


Unguided 120s exposures
4h of Oiii and 2h of Ha
Dynamic HOO palette

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