Star Trails

[Coldow91]

Taken a few nights ago, of the cold MA sky

I was considering trying a monochrome version, what do you think?

 

[Genocide]

Looks nice, how many exposures is this made of?

 

[Wozza]

Haven't tried this technique yet, out of interest how long was the shutter open for and what apature? Need to have a play with my shutter release.

 

[Coldow91]

It was 45 minutes of consecutive 30 seconds exposures, then stacked.
ISO-400 I believe and f/3.5

 

[astrostu]

Is it just me, or are the stars slightly out of focus? Or did you do that on purpose to bring out the colors?

 

[Coldow91]

I didn't really do anything to this photo. I just focused to infinity manually and shot, it is possible the focus shifted or something throwing the out of focus with a narrow dof f/3.5

 

[Genocide]

I can't really tell if you did or not, but apparently some good tips for star trails are:

-On the penultimate exposure, shine a torchlight onto the foreground objects to bring them out a bit.

-On the last exposure, leave the lens cap on. The black frame should help reduce some noise when you merge them together.

Well that's what a magazine told me anyway

 

[Coldow91]

I think I might light paint if I had different foreground but for this I wanted the silhouettes of the trees,
thanks for the tips