This was my third time imaging with the Canon 10D digital SLR camera attached to a 20 inch Starmaster. I use a new Denkmeier 2 inch OCS that replaced a prototype unit I used for earlier images. The Denkmeier OCS allows prime focus imaging at a magnification of about 1.3X without shortening of the scope's truss poles. This final version of the OCS provided a solid coupling to the camera using Denkmeier's camera T-ring adapter. Without the Denkmeier OCS, these low power images at prime focus would not be possible without coversion of the scope to full time astrophotograpy/imaging use.
Ambient temperature was near 40 degrees Fahrenheit. It was calm with some haze and images were taken as the Moon was rising. Earlier images taken with the dob had many star streaked images even at 30 second exposures since M51 was at zenith and the scope was struggling to track while in "Dobsonian's Hole". Looking forward to getting longer exposures to stack with better tracking from a darker site.
IMAGES PLUS was used for stacking images and NEAT IMAGE was used for noise reduction.
CLICK ON THUMBNAILS BELOW FOR LARGER IMAGES AND IMAGE DETAILS:
M51 - Whirlpool Galaxy (stack of ten 30 second images):
M51 - Whirlpool Galaxy (stack of thirty-one 30 second images):
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CLICK ON THUMBNAILS ABOVE FOR LARGER IMAGES AND IMAGE DETAILS
LATEST IMAGES:
For images of Mars taken on 7/31/03
with an Olympus C2020Z and Philips Vesta Pro webcam with a 20"
Starmaster CLICK HERE
For images of M16 Eagle Nebula and Mars
taken at Cherry Springs 7/25-26/03 with a Canon 10D digital SLR,
Olympus C2020Z and Philips Vesta Pro webcam with a 20" Starmaster
CLICK HERE
For images of M27 Dumbell Nebula and
Mars taken at Cherry Springs 7/4-5/03 with a Canon 10D digital
SLR and Olympus C2020Z with a 20" Starmaster CLICK
HERE
For images of Mars taken at Cherry Springs
6/28-29/03 with an Olympus C2020Z with a 20" Starmaster CLICK HERE
For images of M51 Whirlpool Galaxy taken
on 5/18/03 with a Canon 10D, Denkmeier OCS and 20" Starmaster
CLICK HERE
For images of M92, Moon & Mare Crisium
taken on 5/5/03 with a Canon 10D, Denkmeier OCS and 20" Starmaster
CLICK HERE
For images of M51, M13, M57, M104, M27,
M17, M81 & M82 taken on 4/24-27/03 with a Canon 10D, Denkmeier
OCS and 20" Starmaster CLICK
HERE
Olympus C2000Z & C2020Z pages:
TO PART 8 - DEEP SKY IMAGES WITH AIR-COOLED C2000Z
TO PART 7 - AIR_COOLING MODIFICATION FOR C2000Z
TO PART 6 - DISASSEMBLY INSTRUCTIONS FOR C2000Z
TO PART 5 - 32 SECOND IMAGES WITH C2000Z
TO PART 4 - DEEP SKY IMAGING - LONG EXPOSURES
TO PART 3 - DEEP SKY IMAGING ON 10/31/00
TO PART 2 - DEEP SKY IMAGING ON 10/20/00
TO PART 1 - DEEP SKY IMAGING WITH 2X BARLOW
TO MY DIGITAL CAMERA IMAGING HOME PAGE
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