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  1. Galleries
  2. »
  3. Astrophotography
  4. » The Bay of Lightning Lashed by the Waves

 
The Bay of Lightning Lashed by the Waves...

Mineral Moon close-up

View gallery (3 photos)

The Bay of Lightning Lashed by the Waves sent on May 25, 2021 (17:06) by Daniele Bonfiglio. 11 comments, 593 views.

1/160 f/22.0, ISO 1250, tripod.

Con questa foto vorrei inaugurare una mia galleria di close-up lunari a colori. Luna del 24/03/2021, fotocamera al fuoco diretto di un telescopio Maksutov-Cassegrain 127/1500 con moltiplicatore di focale 2x. Questa immagine è in effetti un crop del panorama lunare postato qui https://www.juzaphoto.com/galleria.php?t=3915568&l=it, solo con un poco più di sharpening ed aumento di contrasto. Per dare un'idea del livello di dettaglio, faccio notare che per esempio il cratere che compare vicino all'angolo in basso a destra della foto, si chiama cratere Landsteiner ed ha un diametro di soli 6 km. Nella foto sono visibili anche crateri e dettagli più piccoli, direi tranquillamente arrivando anche a dimensioni inferiori al chilometro. Il titolo della foto si riferisce alle corrugazioni del mare Imbrium in prossimità del sinus Iridum (la baia dei fulmini) che danno l'impressione di essere effettivamente delle onde del mare che si infrangono sulla baia.





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avatarjunior
sent on May 25, 2021 (20:38) | This comment has been automatically translated (show/hide original)

great title, very ;) in fact, they look just like :)

avatarjunior
sent on May 25, 2021 (20:39) | This comment has been automatically translated (show/hide original)

did you use any IR filters for shooting?

avatarsenior
sent on May 26, 2021 (21:37) | This comment has been automatically translated (show/hide original)

What kind of color fidelity does this photograph present?
A cordial greeting
Patrizio

avatarjunior
sent on May 26, 2021 (23:30) | This comment has been automatically translated (show/hide original)

hi Patrizio if I can, I try to give an answer myself: Mineral Moon is a very simple photography technique that involves capturing images of our satellite with color sensors and applying a simple processing technique that will allow us to extrapolate the large amount of information contained in our photographs. Colors that come out of the processing of a mineral moon do not represent any color in the visible; this, however, does not exclude electromagnetic information. according to scientists, they are good references for mineralographic information.

avatarsenior
sent on May 27, 2021 (0:17) | This comment has been automatically translated (show/hide original)

Thank you Serafix, so there is no direct link to visually perceptible colors, but other information that is related to the composition of lunar matter.

avatarjunior
sent on May 27, 2021 (8:40) | This comment has been automatically translated (show/hide original)

Yes, exactly. you can process truly incredible images, rich in color and information. if you want to see some really beautiful look for those of Manuel Huss around the web ;)
as I mentioned, then, there is the most scientific side of the matter as the colors extracted from these images represent the minerals that are found on the lunar soil.
I'm collaborating with the guys from the astrophile group in Turin x do a study on this topic. a very important aspect that has come up to date is the importance that IR filters have in this type of footage.

avatarjunior
sent on May 27, 2021 (8:40) | This comment has been automatically translated (show/hide original)


avatarjunior
sent on May 27, 2021 (8:49) | This comment has been automatically translated (show/hide original)

[QUOTAS] The colors that come out of the processing of a mineral moon do not represent any color in the visible
foreas I was a bit ambiguous, in fact :D the Moon, in view, appears monochromatic and in shades of grey ;)

avatarjunior
sent on May 27, 2021 (8:52) | This comment has been automatically translated (show/hide original)

did you use any IR filters for shooting? [/QUOTAS]
Aciao Serafino, no I did not use filters also because I have a color sensor and usually such filters are used on monochrome sensors. What I've done in the past was still an experiment where I worked out individually the three color channels (RGB) of my photos. This allowed me to verify what was already known, namely that channel R is the least sensitive to atmospheric turbulence (the so-called seeing) and this is why often to obtain more details of the Moon and planets the red channel is used, but at the same time more subject to diffraction effects of light (obviously being the shorter wavelength of red). Hello, Daniel

avatarjunior
sent on May 27, 2021 (9:16) | This comment has been automatically translated (show/hide original)

Here I also posted the caption of the photo, which for lack of time I had not yet been able to write!

avatarsenior
sent on May 27, 2021 (9:41) | This comment has been automatically translated (show/hide original)

Thank you for your explanation.
A cordial greeting
Patrizio


RCE Foto

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