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Astrophotography and Sketching >> Beginning and Intermediate Imaging
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Javier1978
sage


Reged: 02/12/09
Posts: 227
Loc: Buenos Aires, Argentina
NGC 253 - M20 - M42 - 6" f5 Reflector - eq3
      #3350241 - 09/22/09 10:09 PM Attachment (29 downloads)
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Hi guys, here are some images from "San Antonio de Areco", a 4 class sky 100 km away from Buenos Aires.

I took between 50 and 80 frames for each image, 20 darks and 20 bias, 30 sec subs with my SW 6" f5 eq3 reflector without guiding and the Canon 300 d.

They are a little bit noisy. Hope you like them and thanks for any advice!

Regards,

Javier

--------------------
6" f5 Sky Watcher Reflector
Eq3 mount (Dual Axis)
Unmodded Canon 300 D

Edited by Javier1978 (09/22/09 10:15 PM)

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Javier1978
sage


Reged: 02/12/09
Posts: 227
Loc: Buenos Aires, Argentina
Re: NGC 253 - M20 - M42 - 6" f5 Reflector - eq3 new [Re: Javier1978]
      #3350242 - 09/22/09 10:10 PM Attachment (18 downloads)
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M 20

--------------------
6" f5 Sky Watcher Reflector
Eq3 mount (Dual Axis)
Unmodded Canon 300 D

Edited by Javier1978 (09/22/09 10:11 PM)

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Javier1978
sage


Reged: 02/12/09
Posts: 227
Loc: Buenos Aires, Argentina
Re: NGC 253 - M20 - M42 - 6" f5 Reflector - eq3 new [Re: Javier1978]
      #3350247 - 09/22/09 10:11 PM Attachment (17 downloads)
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and M42

--------------------
6" f5 Sky Watcher Reflector
Eq3 mount (Dual Axis)
Unmodded Canon 300 D

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Alex Gorstan
member


Reged: 05/26/09
Posts: 25
Loc: Owings Mills, MD
Re: NGC 253 - M20 - M42 - 6" f5 Reflector - eq3 new [Re: Javier1978]
      #3350256 - 09/22/09 10:14 PM
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beautiful shots.. something i'm aspiring to do someday soon! m20 is my fave of the above.

--------------------
CGEM 925
2" EP Kit
12x50 Nikon ActionMaster




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Taylor
professor emeritus
*****

Reged: 07/10/05
Posts: 558
Loc: Federal Way, WA
Re: NGC 253 - M20 - M42 - 6" f5 Reflector - eq3 new [Re: Alex Gorstan]
      #3350596 - 09/23/09 01:18 AM
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Those are very good for 30s pics.

--------------------
Some OTAs, a mount, some eyepieces, and some cameras

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Javier1978
sage


Reged: 02/12/09
Posts: 227
Loc: Buenos Aires, Argentina
Re: NGC 253 - M20 - M42 - 6" f5 Reflector - eq3 new [Re: Taylor]
      #3354597 - 09/24/09 08:17 PM
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Thanks guys for your coments!

--------------------
6" f5 Sky Watcher Reflector
Eq3 mount (Dual Axis)
Unmodded Canon 300 D

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8buck
member


Reged: 02/12/09
Posts: 54
Loc: Idaho
Re: NGC 253 - M20 - M42 - 6" f5 Reflector - eq3 new [Re: Javier1978]
      #3354651 - 09/24/09 08:51 PM
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AWESOME! People do still say awesome, right? haha I hope to be getting pics at least half as good as yours soon! I'm just starting to learn.

--------------------
NexStar 1100 GPS (EPs Celestron 22mm - Celestron Plossl 32mm) SOUTHEASTERN IDAHO

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Igor
super member


Reged: 04/20/06
Posts: 125
Loc: Croatia
Re: NGC 253 - M20 - M42 - 6" f5 Reflector - eq3 new [Re: 8buck]
      #3355312 - 09/25/09 04:01 AM
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Amazing! And with that equipment?! I especially like NGC253.
I have the same mount and 5" f5 scope but never tried imaging trough it (infocus travel problem ) but I'm using it with my camera lenses. Have you ever tried longer exposures or maybe autoguiding?

--------------------
GSO 250/f5 dob
Skywatcher Explorer 130p @ EQ3
Baader modified 350D and bunch of old M42 lenses


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Javier1978
sage


Reged: 02/12/09
Posts: 227
Loc: Buenos Aires, Argentina
Re: NGC 253 - M20 - M42 - 6" f5 Reflector - eq3 new [Re: Igor]
      #3355464 - 09/25/09 07:47 AM
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Thanks guys. I really aprreciate your kind words.

8buch, I´m sure you will take pictures soon, it´s very funny and interesting, you will love it.

Igor, I know about about the infocus travel problem in that OTA, but I know some people who have replaced the original focuser to image with DSRL, with great results.

I spend a lot of time, something like 2 hour, to make a really accurate polar alignment with the drift method. With this, the eq3 can give up to 45-60 seconds, but since the PE in really high, you have to discard a lot of frames.

I´m looking foward to modify the pad to be able to guide with a very unexpensive short refractor and a SPC 900.

I´ve tried manual guiding, but the barlowed 70/400 refractor is not enough too guide 750 FL.

Good luck!

--------------------
6" f5 Sky Watcher Reflector
Eq3 mount (Dual Axis)
Unmodded Canon 300 D

Edited by Javier1978 (09/25/09 01:12 PM)

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Igor
super member


Reged: 04/20/06
Posts: 125
Loc: Croatia
Re: NGC 253 - M20 - M42 - 6" f5 Reflector - eq3 new [Re: Javier1978]
      #3355588 - 09/25/09 09:32 AM
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Quote:


Igor, I know about about the infocusing travel problem in that OTA, but I know some people who have replaced the original focuser to image with DSRL, with great results.




I didn't know that! And what replacement focuser did they use if you remember?



Quote:

I´m looking foward to modify the pad to be able to guide with a very unexpensive short refractor and a SPC 900.




I did that and it's well worth it, IMHO.

--------------------
GSO 250/f5 dob
Skywatcher Explorer 130p @ EQ3
Baader modified 350D and bunch of old M42 lenses


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Javier1978
sage


Reged: 02/12/09
Posts: 227
Loc: Buenos Aires, Argentina
Re: NGC 253 - M20 - M42 - 6" f5 Reflector - eq3 new [Re: Igor]
      #3356058 - 09/25/09 01:17 PM
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I´m going to check out to be sure, but I think the Orion crayford would work to do DSRL prime focus imaging.

--------------------
6" f5 Sky Watcher Reflector
Eq3 mount (Dual Axis)
Unmodded Canon 300 D

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