I went out to the North Sea last night to feeze my butt off, watch the stars and gather some more photons for my M 200mm f4 Horsehead project (I'm getting there Peter ), I also had to try my 'new' DA*300mm f4 lens, I picked it up yesterday.
It was not my intention to use the lens for astrophotography, but I might have to reconsider - that only puts pressure on my barndoor tracker steppermotor upgrade project to get some more seconds per frame
35x10sec, ISO1600, f4, stacked in DSS, PP in Pixinsight.

Hi Keld, this is a nice one! Good colors in the stars and a lot of detail in the nebula! Didn'n' the wind blow the barndoor away? I had some tries on my balcony when there were some holes in the clouds the last two days but the wind gusts ruined all. Must have been worse north of me and especially by the set....

Hi Keld, this is a nice one! Good colors in the stars and a lot of detail in the nebula! Didn' the wind blow the barndoor away? I had some tries on my balcony when there were some holes in the clouds the last two days but the wind gusts ruined all. Must have been worse north of me and especially by the sea....

That looks very good!

It was actually quite calm Monday evening - so no problem :-)
But you are right, the barn door tracker is very vulnerable to high wind and people walking around, especially with a heavy 300mm lens attached to the camera. For this picture I used the GPS.
I'm quite satisfied with the result, after all it's only a 6 minutes exposure (and my fourth attempt using Pixinsight).

Very nice! I think probably the best telephoto image I've seen. So you were using Astrotracer?

Yes, I used the Astrotracer functionality, From my experience, 10sec is max exposure with a 300mm lens. Again, it seems as if the DA*300 is a very capable lens for astrophotography

Nice one!