M42 through Sir Patrick Moore's reflector

A shot of M42 taken through Sir Patrick Moore's 15" f/6 Newtonian
reflector on March 1st. Canon 20Da was used to collect the component
shots. 3x30s + 1x10s + 1x3s all at ISO1600. I believe that the faint
vertical lines in the larger image are due to the fact that I forgot
to turn the noise reduction mode on!

http://www.digitalsky.org.uk/DSO/M42-march2006.html

--
Pete
http://www.digitalsky.org.uk

In article ,
says...
A shot of M42 taken through Sir Patrick Moore's 15" f/6 Newtonian
reflector on March 1st. Canon 20Da was used to collect the component
shots. 3x30s + 1x10s + 1x3s all at ISO1600. I believe that the faint
vertical lines in the larger image are due to the fact that I forgot
to turn the noise reduction mode on!

http://www.digitalsky.org.uk/DSO/M42-march2006.html


Excellent Pete, as usual. A fair bit of noise visible in parts of the
larger image, how much more difficult would it be to drop to ISO800 or
even 400 and still get a usable image in a sensible time frame?
--
Craig Oldfield

On Fri, 03 Mar 2006 18:42:56 GMT, Craig Oldfield
wrote:

In article ,
says...
A shot of M42 taken through Sir Patrick Moore's 15" f/6 Newtonian
reflector on March 1st. Canon 20Da was used to collect the component
shots. 3x30s + 1x10s + 1x3s all at ISO1600. I believe that the faint
vertical lines in the larger image are due to the fact that I forgot
to turn the noise reduction mode on!

http://www.digitalsky.org.uk/DSO/M42-march2006.html


Excellent Pete, as usual. A fair bit of noise visible in parts of the
larger image, how much more difficult would it be to drop to ISO800 or
even 400 and still get a usable image in a sensible time frame?

Very easy Craig. I only took a few short shots to see what they would
come out like and then moved on to other things. The noise would
disappear with more exposures. 3x30s is pretty short to be honest.
--
Pete
http://www.digitalsky.org.uk

In article ,
says...

Excellent Pete, as usual. A fair bit of noise visible in parts of the
larger image, how much more difficult would it be to drop to ISO800 or
even 400 and still get a usable image in a sensible time frame?

Very easy Craig. I only took a few short shots to see what they would
come out like and then moved on to other things. The noise would
disappear with more exposures. 3x30s is pretty short to be honest.

Thanks Pete, I'd love to get to even near that standard. Better get
practising

--
Craig Oldfield

Excellent images well presented as always Pete, do you ever sleep?



Its always a joy to see Sir Patrick on the sky at night, is he well and does
he use his 15" reflector much these days?



Many thanks for sharing.

Darren



"Pete Lawrence" wrote in message
news
A shot of M42 taken through Sir Patrick Moore's 15" f/6 Newtonian
reflector on March 1st. Canon 20Da was used to collect the component
shots. 3x30s + 1x10s + 1x3s all at ISO1600. I believe that the faint
vertical lines in the larger image are due to the fact that I forgot
to turn the noise reduction mode on!

http://www.digitalsky.org.uk/DSO/M42-march2006.html

--
Pete
http://www.digitalsky.org.uk

Pete,

Very nice. Thanks for posting.

Errol
NOLA

On Fri, 3 Mar 2006 22:54:34 -0000, "Spr_astro"
wrote:

Excellent images well presented as always Pete, do you ever sleep?



Its always a joy to see Sir Patrick on the sky at night, is he well and does
he use his 15" reflector much these days?

He's in good spirits but unfortunately he can't get out to use his
telescopes any more.
--
Pete
http://www.digitalsky.org.uk

In message , Pete Lawrence
writes
On Fri, 3 Mar 2006 22:54:34 -0000, "Spr_astro"
wrote:

Excellent images well presented as always Pete, do you ever sleep?



Its always a joy to see Sir Patrick on the sky at night, is he well and does
he use his 15" reflector much these days?

He's in good spirits but unfortunately he can't get out to use his
telescopes any more.

I'm sure this has been raised before, but is it possible to devise a
telescope he _can_ use? Telescopes have been designed specifically for
disabled users, (IIRC) to be used inside warm rooms with the objective
outside, etc.
I'm not talking about an electronic system, but an eyepiece he can look
through.

Originally Posted by Pete Lawrence

A shot of M42 taken through Sir Patrick Moore's 15" f/6 Newtonian
reflector on March 1st. Canon 20Da was used to collect the component
shots. 3x30s + 1x10s + 1x3s all at ISO1600. I believe that the faint
vertical lines in the larger image are due to the fact that I forgot
to turn the noise reduction mode on!

http://www.digitalsky.org.uk/DSO/M42-march2006.html

--
Pete
http://www.digitalsky.org.uk

Great images Pete - to think I used to look thro that scope here at Stoneleigh only 1/2 mile away in Phil Ringsdore's garden. Was about to make an offer on scope when the the Master and friend of Phil's stepped in;-). Optics I think by Peter Sartory?

Nytecam

On Sun, 5 Mar 2006 10:45:52 +0000, nytecam
wrote:


Pete Lawrence Wrote:
A shot of M42 taken through Sir Patrick Moore's 15" f/6 Newtonian
reflector on March 1st. Canon 20Da was used to collect the component
shots. 3x30s + 1x10s + 1x3s all at ISO1600. I believe that the faint
vertical lines in the larger image are due to the fact that I forgot
to turn the noise reduction mode on!

http://www.digitalsky.org.uk/DSO/M42-march2006.html

--
Pete
http://www.digitalsky.org.uk

Great images Pete - to think I used to look thro that scope here at
Stoneleigh only 1/2 mile away in Phil Ringsdore's garden. Was about to
make an offer on scope when the the Master and friend of Phil's stepped
in;-). Optics I think by Peter Sartory?

That's interesting to know - thanks Maurice. Nice to think there's a
connection too :-)
--
Pete
http://www.digitalsky.org.uk