Cornish Night Sky

77 posts
17 years
Donegal,
Ireland

Posted 11/10/2019 - 19:19 Link

Sterennow (stars). The Milky Way above Greenburrow engine house at Ding Dong Mine, Cornwall. This a composite of a foreground shot illuminated by moonlight and a single 4 minute exposure of the night sky. Uniquely the Astrotracer function of the Pentax K1 allows for such a long exposure in a single shot at a relatively low ISO of 800 which gives sharp details of the stars without the noise present using other cameras with a much higher ISO

I also shot the night sky without the astrotracer using ISO3200 and a 30 second exposure. An extract of this is shown below, along with an extract from the 4 minute astrotracer shot. The 30 second shot is a lot fuzzier, noisier and shows less stars than the astrotracer shot. The stars do appear bigger in the 30 second shot, presumably due to star trailing. The 4 minute exposure was also taken using a super sharp Pentax 15-30mm lens and the 30 second exposure with a Samyang 14mm lens

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Chrism8 Chrism8

2018 posts
15 years
St Austell,
Cornwall

Posted 11/10/2019 - 20:17 Link

Superb, well shot 😎

Chris

www.chrismillsphotography.co.uk

" A Hangover is something that occupies the Head you neglected to use the night before".

-------------------------------------------------------------
K1 - Sigma 85mm F1.4, Pentax DFA 150 -450 F4.5 / 5.6, Pentax DFA* 24 - 70 F2.8

Samyang 14mm F2.8, Pentax DFA* 70-200 F2.8, Pentax A 50mm F1.2

K3iii + K3ii + K5iis converted to IR, Sigma 17 - 70 F2.8, Pentax 55 - 300 F4.5 / F5.6 PLM

1stEverPentax 1stEverPentax

1479 posts
14 years
Northwich,
Cheshire

Posted 11/10/2019 - 23:39 Link

Love the main image...first class.

Karlo

Plus Member LennyBloke LennyBloke

6948 posts
17 years
Worcestershire

Posted 12/10/2019 - 09:28 Link

Chrism8 wrote:
Superb, well shot 😎

LennyBloke

petrochemist petrochemist

1001 posts
15 years
Essex

Posted 12/10/2019 - 12:29 Link

Excellent image
My own efforts have never come out anywhere near a good

Mike
.
Pentax:K5ii, K7, K100D, DA18-55, DA10-17, DA55-300, DA50-200, F100-300, F50, DA35 AL, 4* M50, 2* M135, Helicoid extension, Tak 300 f4 (& 6 film bodies)
3rd Party: Bigmos (Sigma 150-500mm OS HSM),2* 28mm, 100mm macro, 28-200 zoom, 35-80 zoom, 80-200 zoom, 80-210 zoom, 300mm M42, 600 mirror, 1000-4000 scope, 50mm M42, enlarger lenses, Sony & micro 4/3 cameras with various PK mounts, Zenit E...
Far to many tele-converters, adapters, project parts & extension tubes etc.

.[size=11:].Flickr• WPF• Panoramio

pschlute pschlute

5132 posts
18 years
Surrey

Posted 12/10/2019 - 12:56 Link

Love it

Peter
My Flickr page

Plus Member ronniemac ronniemac

719 posts
13 years
Oxford

Posted 12/10/2019 - 15:26 Link

The combination of image quality and subject matter make me feel small and insignificant! The first image is beautiful, the second pair reveals how sharp the Pentax 15-30 lens and astrotracer combination is and they all tell us you are a most accomplished night sky photographer!

Plus Member cardiffgareth cardiffgareth

3423 posts
9 years
Barrybados

Posted 13/10/2019 - 08:12 Link

Excellent! Amazing to think each and every one of those white dots is a sun line ours.

petrochemist wrote:
Excellent image
My own efforts have never come out anywhere near a good

And mine!

Gareth Williams ARPS

My outfit: K1ii - Pentax D FA 24-70mm f2.8 - Pentax DA* 300mm f4 - Pentax modified DA* 60-250mm f4 - Irix 15mm Firefly - Pentax FA 35mm - FA 50mm f1.4 - Tamron SP 90mm macro - Pentax AF 540 FGZ II

Welsh Photographer
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Foundation NFT

screwdriver22... screwdriver222

321 posts
13 years
Plymouth

Posted 13/10/2019 - 22:16 Link

What a beautie!. Had to look up Ding Dong Mine. Surprised I had never heard of it as I have been down that area many times. Well done, I must have a crack at astrotracer.

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