A light weight AP setup (Pentax K30 with O-GPS1 Astrotracer)

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Davegn
Posts: 290
Joined: Thu Feb 23, 2012 12:12 pm
Favourite scope: 94" Ritchey Chrétien reflector telescope
Location: Ang Mo Kio, Bishan Park
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A light weight AP setup (Pentax K30 with O-GPS1 Astrotracer)

Post by Davegn »

Hi All,

The Pentax K30 with O-GPS 1 Unit.
Image

More About the Pentax Astrotracer and how it works.


All you need to do, Calibrate, Mount Cam, settings, point and start shooting.
The O-GPS 1 Unit locks on in less then 5 mins.
for the whole night only one Calibration is needed if you are not moving the Tripod.

Do note that as the system is not on a EQ mount,
you would need to track the object after every shot but not during.

Unit still trackes well at 450mm FL for 30 sec.
From testing, i notice that it tracks better when objects is higher up (say about 45-60 degrees)

Small and light upset for Widefield Astrophotograhphy on the go!

A few test shots in Malaysia:
Image
MilkyWay Wide (Tamron 17-55 F2.8 suffers from coma @ 17mm)
7x3mins at 26mm @ F5.6.
4 Dark and 9 Bias
ISO: 3200

Image
MilkyWay Wide (Tamron 17-55 F2.8 suffers from coma @ 17mm)
7x3mins at 26mm @ F5.6.
4 Dark and 9 Bias
ISO: 3200

Image
M8 and M20 (Sigma 70-300 DG OS) (was not done well)
40 x 30 Sec at nearly 350mm @ F5.6.
10 Dark and 9 bias
ISO: 3200

Image
M17 and M24 (Sigma 70-300 DG OS)
20 x 45 Sec at nearly 200-300mm @ F5.6.
7 Dark and 9 bias
ISO: 3200

For more photos from the Pentax K30 and their original Res you can visit my Flicker Page set:
http://www.flickr.com/photos/21190487@N ... 000822179/


Regards,
Dave Ng
Last edited by Davegn on Mon Jun 10, 2013 12:33 pm, edited 3 times in total.
Dave Ng
Bishan Park SideWalk Astronomy
http://www.facebook.com/SingaporeSidewalkAstronomy

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Gary
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Joined: Tue Sep 30, 2003 7:06 am
Location: Toa Payoh
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Re: A light weight AP setup (Pentax K30 with O-GPS1 Astrotra

Post by Gary »

Thanks for sharing! A very fruitful new moon weekend. :)
http://www.astro.sg
email: gary[at]astro.sg
twitter: @astrosg


"The importance of a telescope is not how big it is, how well made it is.
It is how many people, less fortunate than you, got to look through it."
-- John Dobson.

Davegn
Posts: 290
Joined: Thu Feb 23, 2012 12:12 pm
Favourite scope: 94" Ritchey Chrétien reflector telescope
Location: Ang Mo Kio, Bishan Park
Contact:

Re: A light weight AP setup (Pentax K30 with O-GPS1 Astrotra

Post by Davegn »

Thanks Gary!
yes indeed it was a very fruitful weekend!

Hope to share more photo soon during the next New moon!
Dave Ng
Bishan Park SideWalk Astronomy
http://www.facebook.com/SingaporeSidewalkAstronomy

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