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ASTRO: Mars & M-35 and Co.



 
 
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  #1  
Old October 8th 07, 04:17 PM posted to alt.binaries.pictures.astro
J McBride
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Posts: 274
Default ASTRO: Mars & M-35 and Co.

4 X 45 sec taken with my Canon XTi with a Olympus 300mm f/4.5 (5.6) from my
backyard. I live in the burbs and the skies arn't dark at all. On a good
night you can barely see the Milkway in Cygnus...this was not one of those
nights.

Joe




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  #2  
Old October 8th 07, 07:13 PM posted to alt.binaries.pictures.astro
Rick Johnson[_2_]
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Default ASTRO: Mars & M-35 and Co.



J McBride wrote:

4 X 45 sec taken with my Canon XTi with a Olympus 300mm f/4.5 (5.6) from my
backyard. I live in the burbs and the skies arn't dark at all. On a good
night you can barely see the Milkway in Cygnus...this was not one of those
nights.

Joe

Last spring it was Saturn by the beehive, now Mars by M35. Planets love
open clusters! Color contrast makes a great shot!

How do you mate an Olympus lens to a Canon camera?

Rick

--
Correct domain name is arvig and it is net not com. Prefix is correct.
Third character is a zero rather than a capital "Oh".

  #3  
Old October 9th 07, 03:40 PM posted to alt.binaries.pictures.astro
J McBride
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Posts: 274
Default How to mate a Olympus to a Canon???








"Rick Johnson" wrote in message
...


J McBride wrote:

4 X 45 sec taken with my Canon XTi with a Olympus 300mm f/4.5 (5.6) from

my
backyard. I live in the burbs and the skies arn't dark at all. On a

good
night you can barely see the Milkway in Cygnus...this was not one of

those
nights.

Joe

Last spring it was Saturn by the beehive, now Mars by M35. Planets love
open clusters! Color contrast makes a great shot!

How do you mate an Olympus lens to a Canon camera?

Rick

--
Correct domain name is arvig and it is net not com. Prefix is correct.
Third character is a zero rather than a capital "Oh".





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  #4  
Old October 9th 07, 04:31 PM posted to alt.binaries.pictures.astro
Rick Johnson[_2_]
external usenet poster
 
Posts: 3,085
Default How to mate a Olympus to a Canon???



J McBride wrote:
"Rick Johnson" wrote in message
...


J McBride wrote:


4 X 45 sec taken with my Canon XTi with a Olympus 300mm f/4.5 (5.6) from


my

backyard. I live in the burbs and the skies arn't dark at all. On a


good

night you can barely see the Milkway in Cygnus...this was not one of


those

nights.

Joe


Last spring it was Saturn by the beehive, now Mars by M35. Planets love
open clusters! Color contrast makes a great shot!

How do you mate an Olympus lens to a Canon camera?

Rick

--
Correct domain name is arvig and it is net not com. Prefix is correct.
Third character is a zero rather than a capital "Oh".





When I tried adapters on my old film SLR they pushed infinity beyond
reach. Some truth to that but it's nice when an astro lens can achieve
it anyway. I'd have to take the lens apart and reset the infinity stop
which screwed it for for use on the original camera. They must make
them better now.

I gather that puts you in full manual mode which is no problem for astro
work of course.


Rick

  #5  
Old October 9th 07, 05:12 PM posted to alt.binaries.pictures.astro
J McBride
external usenet poster
 
Posts: 274
Default How to mate a Olympus to a Canon???

The Canon DSLR body has a shorter focusing distance between the lens mount
and the chip than the old film body Olympus. The adapter/spacer takes up
the slack and focus is still at infinity...a perfect fit.

Joe


"Rick Johnson" wrote in message
...


J McBride wrote:
"Rick Johnson" wrote in message
...


J McBride wrote:


4 X 45 sec taken with my Canon XTi with a Olympus 300mm f/4.5 (5.6)

from

my

backyard. I live in the burbs and the skies arn't dark at all. On a


good

night you can barely see the Milkway in Cygnus...this was not one of


those

nights.

Joe


Last spring it was Saturn by the beehive, now Mars by M35. Planets love
open clusters! Color contrast makes a great shot!

How do you mate an Olympus lens to a Canon camera?

Rick

--
Correct domain name is arvig and it is net not com. Prefix is correct.
Third character is a zero rather than a capital "Oh".





When I tried adapters on my old film SLR they pushed infinity beyond
reach. Some truth to that but it's nice when an astro lens can achieve
it anyway. I'd have to take the lens apart and reset the infinity stop
which screwed it for for use on the original camera. They must make
them better now.

I gather that puts you in full manual mode which is no problem for astro
work of course.


Rick



 




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