MiniCAM5F - real conditions test images of the sky

[easybob95]

Hello,

well, QHYCCD forum is back ! So, here is some works i have made with the miniCAM5F.

First, i made a new version of M57, with better details i think :




Then, i did make tests on M27. Here is the result i am very pleased in (considering it is one of my very first M27 attempt) :



Alain

[easybob95]

Well, let's go back to planets.

Here is an test on Saturn. Very hard to capture Saturn because it is not very high in the sky.



Alain

[easybob95]

And now, some Moon pictures.

Here is a reduced size mosaic of the Moon with enhanced colors.



As you can see, the colors seem to have more details then previous pictures i made with my QHY5L-IIc.

As i make miniCAM5F tests, let's compare with other cameras.


 I made comparisons between miniCAM5F, QHY5L-IIc and Sony A6000 captures.

MiniCAm5F vs QHY5L-IIc vs Sony A6000 :



miniCAM5F vs QHY5L-IIc :



miniCAM5F vs QHY5L-IIc :



The same comparison but this time, i uses negative color pictures and negative black&white pictures.



Here is an other interesting comparison between miniCAM58F and QHY5L-IIc. Copernicus region in strongly enhanced colors :



The variety of colors is very impressive. I never have such result with my QHY5L-II color.

Those tests have learn me one important thing : mono sensor + dedicated filters is much much better then color sensor (with bayer matrix).

Alain

[easybob95]

Now, the question is : can i trust the colors i get with miniCAM5F ?

To try to answer, here are some comparison elements :

First, miniCAM5F vs LROC satellite :




Second, miniCAM5F vs Clementine satellite :




Even if there is some difference, i think enhanced colors can but trusted and used for spectrum analysis.

So, i made a test on Copernicus region, trying to extract red, green and blue signal from the enhanced colors. We could say (even if it is not the entire thruth) that red is iron oxide, blue is titanium oxide and green is silicate :



You can see attempt of making iron oxide map, titanium oxide map and silicate map. I think it is quite interesting.

Alain

[easybob95]

I made a second test to see if the analysis can be done without problem. I have some similar results.

So, here are the differents ways i can see the Moon with the miniCAM5F and is very very usefull mono sensor and dedicated filters. I think i can't have such results (and trustable results) with a color sensor with bayer matrix.



Alain

[easybob95]

To end this first test session, i have made a quick poster of some of my results with the miniCAM5F.




I hope you will enjoy it.

I will continue tests with miniCAM5F but i will be back only in a few months because i have to make my moving house (new town, new job).

Alain

[easybob95]

The last picture before i come back.

QHYCCD was in IAU2015 in Hawaii and Dr Qiu has taken a picture of QHYCCD show room with new QHYCCD cameras AND one of my pictures (Copernicus region).

Many thanks Qiu.



Alain

[easybob95]

Hello,

always testing miniCAM5F, here is Apennins Mons with Red filter, positive and negative picture :



Clear skies

Alain

[riklaunim]

Can you post a TIFF or FITS of a 0,5s and ~5s dark frames with cooling and high gain?

[easybob95]

Hello Piotr,

i will post such a frame as soon as possible (no much time left those days).

Alain

[easybob95]

Still making color images of the Moon, here is Mare Nubium region in enhanced colors (reduced size picture) :



Considering red color matches iron oxides, blue color matches titanium oxides and green color matches silicates, here are the soils composition maps :



Alain

[easybob95]

Always considering Mare Nubium region, here is the positive and negative versions of the picture, taken with red filter (reduced size pictures) :



Negative version gives us much more informations on low contrasted areas.

For example, it is much more easy to see ghost craters with the negative picture.

Alain

[easybob95]

Hello,

first (and not last i hope) AAPOD² for the miniCAM5F : http://www.aapodx2.com/2015/20150930.html

Clear skies

Alain

[easybob95]

Here is a larger view of Copernicus region, still with enhanced colors, taken with miniCAM5F RGB filters and my SCT 6" :



Alain

[easybob95]

And the Full Moon, taken with red filter, positive and negative version to show different interesting areas, considering the positive or the negative version.

It's 2 pictures mosaic taken with my SCT 6" at F/D 3.2.



Clear skies.

Alain