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#21
Astrophotography / Re: Orion Nebula for HDR displ...
Last post by Rick - Jan 14, 2025, 11:58:15About the only bit of kit I have that might actually handle HDR display is my phone, but it looks pretty good even without the HDR on my monitor.
#22
Astrophotography / Re: One deep sky and a bunch o...
Last post by Rick - Jan 14, 2025, 11:54:20I really like the stack of the transit that shows some detail on Io.
#23
Astrophotography / Orion Nebula for HDR displays
Last post by MarkS - Jan 14, 2025, 08:14:01I've started experimenting with producing images for display on HDR screens.
If you are viewing with an HDR capable operating system, graphics chip and display with an HDR capable web-browser then you should see the letters "HDR" appear at the bottom left of the image.
A link to the original image is here: Orion Nebula 4K HDR
The image was shot using my (unmodified) Canon EOS R on the Tak Epsilon E180 with the following exposures:
The result looks particularly good on an OLED screen or the iPhone's Super Retina XDR display, especially in a semi-darkened room. The stars and Trapezium area will look very bright.
On Windows 10/11, the Chrome and Edge browsers are HDR capable (use F11 to toggle full screen on/off). Firefox is not HDR capable. The Safari browser on an iPhone is not HDR capable but the image can be saved and then opened in the Photos app for full effect.
At present, this is all "bleeding-edge" technology so the results might still be hit or miss. There is a forthcoming ISO standard for gain-mapped JPG files and hopefully this will lead to wider support. Unfortunately, the display of static HDR images lags a long way behind the film industry. For instance, David Attenborough documentaries on BBC iPlayer and a lot of Netflix content have been HDR for years.
I've produced another version of the image, optimised for HDR screens that don't have the deep blacks and high contrast ratio of OLED HDR screens:
Orion Nebula 4K HDR v2
Mark
If you are viewing with an HDR capable operating system, graphics chip and display with an HDR capable web-browser then you should see the letters "HDR" appear at the bottom left of the image.
A link to the original image is here: Orion Nebula 4K HDR
The image was shot using my (unmodified) Canon EOS R on the Tak Epsilon E180 with the following exposures:
- 90x120sec ISO 1600
- 30x30sec ISO 400
- 30x16sec ISO 100
The result looks particularly good on an OLED screen or the iPhone's Super Retina XDR display, especially in a semi-darkened room. The stars and Trapezium area will look very bright.
On Windows 10/11, the Chrome and Edge browsers are HDR capable (use F11 to toggle full screen on/off). Firefox is not HDR capable. The Safari browser on an iPhone is not HDR capable but the image can be saved and then opened in the Photos app for full effect.
At present, this is all "bleeding-edge" technology so the results might still be hit or miss. There is a forthcoming ISO standard for gain-mapped JPG files and hopefully this will lead to wider support. Unfortunately, the display of static HDR images lags a long way behind the film industry. For instance, David Attenborough documentaries on BBC iPlayer and a lot of Netflix content have been HDR for years.
I've produced another version of the image, optimised for HDR screens that don't have the deep blacks and high contrast ratio of OLED HDR screens:
Orion Nebula 4K HDR v2
Mark
#24
Astrophotography / Re: One deep sky and a bunch o...
Last post by Roberto - Jan 13, 2025, 19:26:26Sure Carole. Here it is: https://cdn.astrobin.com/images/5378/2025/e0fcc505-1ed9-4d8b-901b-e09b864b8520.gif
#25
Astrophotography / Re: One deep sky and a bunch o...
Last post by Carole - Jan 13, 2025, 18:46:44Great Stuuf Roberto, Will put into the Fbruary Members images as the January one is now full.
Have you got a link to the video please.
Have you got a link to the video please.
#26
Astrophotography / Re: One deep sky and a bunch o...
Last post by Roberto - Jan 13, 2025, 08:17:50I am adding the Jupiter I took on Saturday to this thread:
Jupiter - 11 January 2025 - 19:35UT - Animation of Io and its shadow
Details here: https://www.astrobin.com/r4hlkw/C/
Animation from 19:08 to 20:00
Stack of 24 frames from WinJupos
Roberto
Jupiter - 11 January 2025 - 19:35UT - Animation of Io and its shadow
Details here: https://www.astrobin.com/r4hlkw/C/
Animation from 19:08 to 20:00
Stack of 24 frames from WinJupos
Roberto
#27
Astrophotography / Re: One deep sky and a bunch o...
Last post by Carole - Jan 12, 2025, 21:24:39Thanks Roberto
#28
Astrophotography / The Moon - Mare Tranquillitati...
Last post by Dave A - Jan 11, 2025, 18:15:08Darkest shadow on right side- where Apollo 11 landed first humans on the Moon, also where Apollo 17 landed and last human to walk on the Moon- Gene Cernan
Captured on 10th January 2025 in Orpington with Seestar S50
Captured on 10th January 2025 in Orpington with Seestar S50
#29
Astrophotography / One of our Moon's famous crate...
Last post by Dave A - Jan 11, 2025, 18:07:00Zoomed in image of the crater on Moon- Tycho - Captured on 10th January 2025 in Orpington with Seestar S50
#30
Astrophotography / Waxing Gibbous Moon
Last post by Dave A - Jan 11, 2025, 18:01:5888% Waxing Gibbous Moon- captured in Orpington on 10th January 2025 with Seestar S50 smartscope