Author Topic: April 2018  (Read 65828 times)

Fons Baerken

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Re: April 2018
« Reply #120 on: April 15, 2018, 09:42:57 »
Great respect for peoples' contributions to this thread ;)

John Geerts

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Re: April 2018
« Reply #121 on: April 15, 2018, 10:00:01 »
A night full of rain and a shy sun in the morning

Df  300/4.5 ED - PN11

Birna Rørslett

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Re: April 2018
« Reply #122 on: April 15, 2018, 14:40:05 »
The end of an era.

Fons Baerken

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Re: April 2018
« Reply #123 on: April 15, 2018, 16:22:05 »
April 15



D500, 35-200mm f/3.5~4.5

Frank Fremerey

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Re: April 2018
« Reply #124 on: April 15, 2018, 17:48:21 »
Great respect for peoples' contributions to this thread ;)

Especially to you & John, who are the most continuous contributers by far!!!
You are out there. You and your camera. You can shoot or not shoot as you please. Discover the world, Your world. Show it to us. Or we might never see it.

Me: https://youpic.com/photographer/frankfremerey/

Frank Fremerey

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Re: April 2018
« Reply #125 on: April 15, 2018, 17:51:26 »
Today I went on a phototour with the editor of our church gazette, to search for pictures in our quarter fitting the "garden"-topic. (  )

I took one thinking of a certain picture Fons posted a while ago, so a "tribute to Fons"
You are out there. You and your camera. You can shoot or not shoot as you please. Discover the world, Your world. Show it to us. Or we might never see it.

Me: https://youpic.com/photographer/frankfremerey/

Frank Fremerey

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Re: April 2018
« Reply #126 on: April 15, 2018, 17:53:00 »
The end of an era.

Are you 100% female now or still "beyond definition"? End of an Era sounds like "End of a long transition" to me...
You are out there. You and your camera. You can shoot or not shoot as you please. Discover the world, Your world. Show it to us. Or we might never see it.

Me: https://youpic.com/photographer/frankfremerey/

Birna Rørslett

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Re: April 2018
« Reply #127 on: April 15, 2018, 18:17:53 »
Just as you surmised.

Bent Hjarbo

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Re: April 2018
« Reply #128 on: April 15, 2018, 18:32:38 »
Especially to you & John, who are the most continuous contributers by far!!!
+1

golunvolo

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Re: April 2018
« Reply #129 on: April 15, 2018, 20:30:27 »
+1
+ another 1

  Thank you for your creativity, dedication, generosity

armando_m

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Re: April 2018
« Reply #130 on: April 16, 2018, 01:10:10 »
coming here is always like opening a present , what wonderful images will I find ? always something interesting

here is a bit of stubbornness from my part, taken just 1 hr away from home, nice beautiful clear skies, iso 1600, 70-300mm zoom at 300mm, 20x1min exposures
large crop , lots of Nr
Armando Morales
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Bill Mellen

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Re: April 2018
« Reply #131 on: April 16, 2018, 01:31:59 »
Beautiful!  Something I have always wanted to try Armando.
Everything gets better as we grow younger and thinner

Hugh_3170

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Re: April 2018
« Reply #132 on: April 16, 2018, 04:19:40 »
Well Armando, your stubborness has paid off handsomely - a splendid image.  A bit like good footballers making their own luck I guess.  ;D

I notice here that you have combined twenty 1 minute exposures. 

Whilst I understand the benefits of signal averaging over multiple images and the benefits of letting the sensor cool down in between exposures, do you also do any other noise reduction things such as dark side subtractions where exposures are made with the lens cap on?


coming here is always like opening a present , what wonderful images will I find ? always something interesting

here is a bit of stubbornness from my part, taken just 1 hr away from home, nice beautiful clear skies, iso 1600, 70-300mm zoom at 300mm, 20x1min exposures
large crop , lots of Nr
Hugh Gunn

armando_m

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Re: April 2018
« Reply #133 on: April 16, 2018, 05:02:09 »
Hugh , Bill, thanks for the comments.

Yes there are "dark" frames, these are taken with the same exposure of the "light" frames but with the lens cap on, I took 8 of these. There are offset frames, taken also with the cap on, but at the fastest shootung speed 1/8000, same iso as the other 2, finally there flat frames, correct exposure of a clear surface , these are used to correct vignetting.

The resulting stack created by deepsky is saved to a tif, I save it in 32bit mode, then use acr to convert it to 16bits, and ps to complete the processing.
Armando Morales
D800, Nikon 1 V1, Fuji X-T3

Øivind Tøien

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Re: April 2018
« Reply #134 on: April 16, 2018, 05:22:38 »

Yes there are "dark" frames, these are taken with the same exposure of the "light" frames but with the lens cap on, I took 8 of these. There are offset frames, taken also with the cap on, but at the fastest shootung speed 1/8000, same iso as the other 2, finally there flat frames, correct exposure of a clear surface , these are used to correct vignetting.

The resulting stack created by deepsky is saved to a tif, I save it in 32bit mode, then use acr to convert it to 16bits, and ps to complete the processing.

Great colors and tones in this one Amando, thanks for posting!

Do you use the autosave file or the active save of the TIFF file, and in the latter case with or without embedded edits?

In case you or anyone else have not discovered: Deep Sky Stacker is now open source. The development team has released version 4.1.0; for the first time it comes in a 64 bit version, which has some speed improvements, and the memory space does not have the 32 bit limit any longer. (Watch out for memory limits in your editing program if you use 2x or 3x drizzle at full size though). I have seen comments that it handles colors better too.

Øivind Tøien