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Posts Made By: Tapio Lahtinen

March 20, 2003 11:25 AM Forum: CCD Imaging and Processing/Solar System

First 'real' DS digital image

Posted By Tapio Lahtinen
Hi!

Thought I'd like to show my first efforts with digital astro imaging.
First image is classic M42.
Some information:
Telescope: Orion StarMax 127
Camera: Casio QV-3500EX
Exposure: 30 s
ISO: 180
Eyepiece: 32mm

Dark frame subtracted,
2 images combined
Levels adjusted, noise removed with Photoshop.

Got my Digiadapt from Scopetronics (http://www.scopetronix.com/otherdigcam.htm) last week and must say that I'm quite pleased with it.
Some more images at:
http://members.surfeu.fi/tapiol/astro/
Any critics/improvement ideas are welcome.

Greetings
Einari

March 20, 2003 11:39 AM Forum: CCD Imaging and Processing/Solar System

Moon shadows

Posted By Tapio Lahtinen
Hi!
Here's my first try of photographing shadow transit in Jupiter. And it (shadow) doesn't look very special.
I thought I could do better, compared to what I have seen here and in other forums.
So my question: what could I do to improve the visibility of the shadow (or Jupiter's belts as well) ?
Some data:
Orion StarMax 127, 10mm Plössl, Philips Vesta webcam, 30 best frames out of 150-frame avi-video and K3CCDTools.

April 1, 2003 03:53 PM Forum: CCD Imaging and Processing/Solar System

Gamma Virginis with rainbows

Posted By Tapio Lahtinen
Last friday I took this image of Gamma Virginis - a double star with 1.6" separation.
When I processed the image I noticed these rainbows.
I wonder why these came out.
Last time I did a similar image and didn't get any colors:
http://members.surfeu.fi/tapiol/astro/ds/SAO112921_091002.htm
Is this a collimation problem ? Focus should have been ok.
I thought Mak-Cassegrains were pretty immune of collimation problems.
StarMax 127, 10mm Baader, webcam

Thanks
Tapio

August 20, 2003 07:23 AM Forum: CCD Imaging and Processing/Solar System

Celestron Advanced Series C8-SGT first light

Posted By Tapio Lahtinen
Image of Mars taken 8-19-03 with 10mm eypiece and Casio QV-3500EX digicam (105mm lens + 2X digizoom).
Only 4 images stacked with Registax.
Color channels and levels adjusted with Photoshop.
Here in Finland Mars only rises about 13 degrees above horizon.

Greetings
tapio

August 20, 2003 07:27 AM Forum: CCD Imaging and Processing/Solar System

C8-SGT first light with image

Posted By Tapio Lahtinen
Hope the image shows now...

Image of Mars taken 8-19-03 with 10mm eypiece and Casio QV-3500EX digicam (105mm lens + 2X digizoom).
Only 4 images stacked with Registax.
Color channels and levels adjusted with Photoshop.
Here in Finland Mars only rises about 13 degrees above horizon.

Greetings
tapio

November 12, 2003 06:35 AM Forum: Equipment Talk

Meade LPI as an autoguider

Posted By Tapio Lahtinen
Could you somehow use this new lowcast webcam as an autoguider/imager in a Celestron scope ?

Einari

November 12, 2003 06:37 AM Forum: Celestron

Meade LPI as an autoguider

Posted By Tapio Lahtinen
Could it be used in a Celestron scope ?

Einari

January 12, 2004 12:31 PM Forum: Celestron

CG-5 Mount problem

Posted By Tapio Lahtinen
I have trouble with the new CG-5 GT computerized mount.
Problem is in the dec motor which isn't working anymore.
I opened the motor box and it seems that the pin wheel doesn't engage.
When it rotates clockwise (as seen from top) it works but when it rotates counterclockwise the pin wheel comes up.
For me it looks like there should be some kind of retainer bushing (?) at the bottom of pin wheel which would prevent it from sliding up.
Could someone tell me what should it look like (or even send a picture of a similar setup).
I think that any similar mount (Vixen, EQ etc) would do as well.

Thanks a million for any help and sorry for any wrong terms which I may have used here (as my technical english may be far from adequate) - I hope that someone understood what I tried explain here.

Tapio Lahtinen

January 12, 2004 12:41 PM Forum: Equipment Talk

Attaching a guide scope

Posted By Tapio Lahtinen
I have the Orion ST80 scope and I'm trying to find a decent way to attach this scope to Celestron C8.
One solution which has been offered is the Lumicon Dovetail Finder Bracket.
But is this too flimsy ? The Orion OTA weights about 3 lbs and I may add a digicam (+ eyepiece) which adds about 1 lbs.
Any other solutions ?
Any comments on Kens Rings ?
http://users.kricket.net/ken/rings.htm

Thank You
Regards
Tapio Lahtinen

May 11, 2004 07:31 PM Forum: CCD Imaging and Processing/Solar System

Venus in daylight

Posted By Tapio Lahtinen
Captured just Venus 2 hours before sunset.
And 5 minutes later when avi video was taken Venus had moved so it couldn't be seen from my balcony.

Taken with C8-SGT (prime focus) and webcam.
13 best frames stacked and resampled 1.5X with Registax.

Thanks for looking

Tapio

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