(Not to be confused with Collinder 203, it is a similar framing but different object)
Pismis 5 is situated at a distance of 947.6 parsecs from the sun. It is a young open cluster with an estimated age of 7.6 million years. It is part of the Vela Molecular Cloud. This part of the sky if full of young open clusters borned within the HII regions that surrounds it. 
In recent days, I attempted to capture Collinder 203 and the hosting SL 4 molecular cloud. I am now trying to capture the dimmer Rubrecht 64 cloud hosting Pismis 5. I am using Collinder 197 as a reference object between the two images and is included in both frames. Besides, it is a nicely shaped patch of nebulosity.
SL 4 and Rubrecht 64 look very similar but the latter is much dimmer. Yet, it is still possible to capture it from Bortle 8 skies or under an SQM of nearly 18.

DATE-AVG= '2024-01-17T06:18:38.372' / Averaged midpoint time (UTC)
GAIN    =                  101 / Sensor gain
OFFSET  =                   70 / Sensor gain offset
EGAIN   =    0.994093239307404 / [e-/ADU] Electrons per A/D unit
XPIXSZ  =                 3.76 / [um] Pixel X axis size
YPIXSZ  =                 3.76 / [um] Pixel Y axis size
RA      =     130.117318054656 / [deg] RA of telescope
DEC     =    -40.7770705471818 / [deg] Declination of telescope
AIRMASS =     1.01896137866792 / Airmass at frame center (Gueymard 1993)
OBJCTROT=                 85.5 / [deg] planned rotation of imaged object
CLOUDCVR=                  0.0 / [percent] Cloud cover
DEWPOINT=                7.301 / [degC] Dew point
HUMIDITY=               46.135 / [percent] Relative humidity
PRESSURE=              902.313 / [hPa] Air pressure
MPSAS   =                18.55 / [mags/arcsec^2] Sky quality
SKYTEMP =                -11.6 / [degC] Sky temperature
AMBTEMP =                 19.1 / [degC] Ambient air temperature
WINDDIR =                  0.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W
WINDGUST=                  0.0 / [kph] Wind gust
WINDSPD =                  0.0 / [kph] Wind speed
MOONANGL=     114.045647907083 / [deg] Angular separation between object and m
HISTORY 1   Stacking method SIGMA CLIP AVERAGE
HISTORY 2   De-mosaic bayer pattern used RGGB
HISTORY 3   Colour conversion: AstroSimple interpolation.
SET-TEMP=                  -10 / Average set temperature used for luminance.
LUM_EXP =                  120 / Average luminance exposure time.
LUM_CNT =                  145 / Luminance images combined.
LUM_DARK=                   20 / Darks used for luminance.
LUM_FLAT=                   20 / Flats used for luminance.
LUM_BIAS=                   20 / Flat-darks used for luminance.