LPR Filter vs No LPR Filter Image comparison

I got a 2" Astronomik CLS filter a few days ago from Modern Astronomy (good
communicative people to deal with). My adapter's not arrived yet but a bit
of cardboard coupled with a dash of determination saw a suitable
improvisation.

Here's a 30 second exposure of the area around Perseus, hovering just above
London (no prizes for guessing what I was shooting for). The image was shot
with an autoguided Canon 350D
http://homepage.ntlworld.com/chris.t...Temp/NoLPR.jpg

Here's another 30 second exposure with the same setup but including the
Heath-Robinson adapted CLS Filter
http://homepage.ntlworld.com/chris.taylor9/Temp/LPR.jpg

Quite easy to see why images taken over the general direction of London are
such a joy to attempt.

Just thought I'd share the results of this first test.

Regards


Chris

Chris Taylor wrote:

Here's a 30 second exposure of the area around Perseus, hovering just above
London (no prizes for guessing what I was shooting for). The image was shot
with an autoguided Canon 350D
http://homepage.ntlworld.com/chris.t...Temp/NoLPR.jpg

Here's another 30 second exposure with the same setup but including the
Heath-Robinson adapted CLS Filter
http://homepage.ntlworld.com/chris.taylor9/Temp/LPR.jpg

Wow. How is it on purely visual stuff?

Jim
--
Find me at http://www.ursaminorbeta.co.uk AIM/iChatAV: JCAndrew2
Lost: Stack Pointer. Small reward offered if found.

"Jim" wrote in message
...
Chris Taylor wrote:

Here's a 30 second exposure of the area around Perseus, hovering just
above
London (no prizes for guessing what I was shooting for). The image was
shot
with an autoguided Canon 350D
http://homepage.ntlworld.com/chris.t...Temp/NoLPR.jpg

Here's another 30 second exposure with the same setup but including the
Heath-Robinson adapted CLS Filter
http://homepage.ntlworld.com/chris.taylor9/Temp/LPR.jpg

Wow. How is it on purely visual stuff?

Jim
--
Find me at http://www.ursaminorbeta.co.uk AIM/iChatAV: JCAndrew2
Lost: Stack Pointer. Small reward offered if found.

I haven't tried it visually as its a 2" filter. I have tried the Celestron
1.25" LPR filter visually and the results were nowhere near as dramatic. I
think my problem, photographically, is the incremental increase in the
effects of light pollution with increased exposure, something that's not
going to affect the eyeball in the same way.

Regards


Chris

Chris Taylor wrote:

Wow. How is it on purely visual stuff?

Jim
--
Find me at http://www.ursaminorbeta.co.uk AIM/iChatAV: JCAndrew2
Lost: Stack Pointer. Small reward offered if found.

I haven't tried it visually as its a 2" filter. I have tried the Celestron
1.25" LPR filter visually and the results were nowhere near as dramatic. I
think my problem, photographically, is the incremental increase in the
effects of light pollution with increased exposure, something that's not
going to affect the eyeball in the same way.

Ok, thanks.

Jim
--
Find me at http://www.ursaminorbeta.co.uk AIM/iChatAV: JCAndrew2
"The voices that control me from inside my head say I shouldn't kill
you yet." - Jonathan Coulton, "Skullcrusher Mountain"

I particularly like the way that the filter removed the clouds
that are apparent in the unfiltered shot :-)

On 2005-08-13, Chris Taylor wrote:
I got a 2" Astronomik CLS filter a few days ago from Modern Astronomy (good
communicative people to deal with). My adapter's not arrived yet but a bit
of cardboard coupled with a dash of determination saw a suitable
improvisation.

Here's a 30 second exposure of the area around Perseus, hovering just above
London (no prizes for guessing what I was shooting for). The image was shot
with an autoguided Canon 350D
http://homepage.ntlworld.com/chris.t...Temp/NoLPR.jpg

Here's another 30 second exposure with the same setup but including the
Heath-Robinson adapted CLS Filter
http://homepage.ntlworld.com/chris.taylor9/Temp/LPR.jpg

Quite easy to see why images taken over the general direction of London are
such a joy to attempt.

Just thought I'd share the results of this first test.

Regards


Chris









--
.................................................. .........................
.. never trust a man who, when left alone ...... Pete Lynch .
.. in a room with a tea cosy ...... Marlow, England .
.. doesn't try it on (Billy Connolly) .....................................

"Peter Lynch" wrote in message
...
I particularly like the way that the filter removed the clouds
that are apparent in the unfiltered shot :-)

;-)

The first shot was taken while trying to focus, just after midnight. The
second waited about an hour for the clouds to clear before capturing about
300 x 30s exposures during the course of the night.

Now; if I did have a Cloud Pollution Reduction filter....


Chris

I've had the 1.25" (also from Bern @ Mondern Astronomy) for a while now,
works a treat

Here's a comparison I did a while back:
http://www.pyroport.com/astro/lightp...1-04/index.asp

Tony

"Chris Taylor" wrote in message
...
I got a 2" Astronomik CLS filter a few days ago from Modern Astronomy (good
communicative people to deal with). My adapter's not arrived yet but a bit
of cardboard coupled with a dash of determination saw a suitable
improvisation.

Here's a 30 second exposure of the area around Perseus, hovering just
above London (no prizes for guessing what I was shooting for). The image
was shot with an autoguided Canon 350D
http://homepage.ntlworld.com/chris.t...Temp/NoLPR.jpg

Here's another 30 second exposure with the same setup but including the
Heath-Robinson adapted CLS Filter
http://homepage.ntlworld.com/chris.taylor9/Temp/LPR.jpg

Quite easy to see why images taken over the general direction of London
are such a joy to attempt.

Just thought I'd share the results of this first test.

Regards


Chris