HET-609: My Pictures and Figures
by Luis Argüelles

 
Image: Orion Constellation  (1440x2060 pixels)
Technique: Traditional film, piggyback camera
Camera: Zenza Bronica ETRSi, 6x4.5 Medium format camera
Film used: Fujicolor NPH 400 ASA
Lens: Zenzanon 75mm f/2.8
Exposure: 15 minutes at f/2.8
Scan: From print. Cheap bed scanner
Date: 21st, November, 1998
Other: Vixen GP mount. Unguided exposure


Image: Sunspots (1000x1000 pixels)
Technique: Afocal coupling with Eudiascopic 35mm eyepiece + Ultima 2x Barlow (48x)
Camera: Olympus C5050 + Baader solar filter-film
Telescope: Zeiss Telementor 63mm f/13.33 on Zeiss T Equatorial Mount
Location: Oviedo, Spain 
Date: 29th, October, 2003
Note: Astrophoto of the third biggest sunspot groups in history



Image: Full Moon (1000x1000 pixels)
Technique: Afocal coupling with Eudiascopic 35mm eyepiece + Ultima 2x Barlow (48x)
Camera: Olympus C2000Z
Telescope: Zeiss Telementor 63mm f/13.33 on Zeiss T Equatorial Mount
Location: Quintueles, near Gijón, Spain
Date: 4th, August, 2001
Note: Despite the low altitude over the horizont, it's remarkable the obtained contrast


Image: Moon taken at 1,200 metres over sea level (900x900 pixels)
Technique: Afocal coupling with Eudiascopic 35mm eyepiece + Ultima 2x Barlow (48x)
Camera: Olympus C2000Z
Telescope: Zeiss Telementor 63mm f/13.33 on Zeiss T Equatorial Mount
Location: Sena de Luna, Leon, Spain
Date:
3rd, November, 2001
Note: Just note the importance of making astrophotography from a
high located place in the mountains
Taken while Saturn was hide behind the Moon (see next picture)


Image: Saturn (400x412 pixels)
Technique: Afocal coupling with Eudiascopic 35mm eyepiece + Ultima 2x Barlow (48x)
Camera: Olympus C2000Z
Telescope: Zeiss Telementor 63mm f/13.33 on Zeiss T Equatorial Mount
Location: Sena de Luna, Leon, Spain
Date:
3rd, November, 2001
Note: Taken just after the occultation by the Moon
 

Image: Moon landscape (904x774 pixels)
Technique: Afocal coupling with Eudiascopic 35mm eyepiece + Ultima 2x Barlow  +  3x zoom
Camera: Olympus C2000Z
Telescope: Zeiss Telementor 63mm f/13.33 on Zeiss T Equatorial Mount
Location: Deva, near Gijón, Spain.
Date:
20th, January, 2002 
Craters and Features named: Abenezra, Abulfeda, Agrippa, Almanon, Andel,
Arago, Bessel, Boscovich, Catharina, Cyrillus, Delambre, Dorsa Smirnov, Geber,
Godin, Julius Caesar, Lade, Lindsay, Manilius, Mare Serenitatis, Menelaus,
Montes Haemus, Plinius, Rima Ariadaeus, Ritter, Ross, Sabine, Theophilus and
Very (5.1 kms diameter)

Note: Just note that Rima Ariadaeus (about 3.5 km wide) is at the optical resolution limits of a 2.5 inches telescope!


Film based astrophotometry is not linear (click here)

Image: Hale-Boop comet (900x600 pixels)
Technique: Traditional film, reflex camera mounted on standard photo-tripod
Camera: Olympus OM-1
Film used: Fujicolor 800 ASA
Lens: Olympus Zuiko 28mm f/3.8
Exposure: 30 seconds at f/2.8
Scan: Kodak Photo CD
Date: April, 1997

Image: Portrait of Stephen Hawking (900x603 pixels)
Technique: Standard picture
Camera: Leica Mini II (point and shoot camera)
Film used: Fujicolor 100 ASA
Lens: Leitz Elmar 35mm f/3.5
Exposure: Unknown
Scan: Fuji Frontier System
Date: 10th, April, 2005


Unsharp mask step by step (click here)

Matching Instrumental magnitudes and Visual magnitudes (click here)