A&P Rosetta Nebula

Discussion in 'Lifestyle' started by EWhytsell, Jan 25, 2009.

  1. EWhytsell

    EWhytsell New Member

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    Here's another with the 28-135 @ 135mm. This time its 5 5 minute frames. A light pollution filter was installed to increase the contrast.

    [​IMG]
     
  2. AmosBanks

    AmosBanks New Member

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    Damn, we're lucky to be able to see a planet or two here in Chicago! You must be in the boonies to have no lights to interfere.
     
  3. Gvidon

    Gvidon New Member

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    Can you post all the amazing pictures you have taken so far?
     
  4. EWhytsell

    EWhytsell New Member

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    That pic will get better next time it gets clear out. The 5 minute frames were barely enough so next time I'll go to 7-8 minutes and see how that does. Also clouds moved in again.
     
  5. EWhytsell

    EWhytsell New Member

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    Processed it some more and got this. Now I'm very impressed with the 40D's low noise operating at 0 degrees. In summer I'd need 60-80 frames to cancel the noise and 20 dark frames. This was only 5 5 minute frames and 3 5 minute dark frames.

    [​IMG]
     
  6. kill_turu_kill

    kill_turu_kill Turu the Terrible OT Supporter

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    Nice Evan. Which LP Filter do you use?

    I've got the Astronomik CLS, and it's pretty impressive. From the site I have been using, It increased my exposure times from 90 seconds at f4 ISO 1600 to 5 minutes.
     
  7. MawcDrums

    MawcDrums Active Member

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    do you have a tracker to stay aligned with the motion of the stars? Where do you buy something like this?
     
  8. EWhytsell

    EWhytsell New Member

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    5 minute frame means shutter open for 300 seconds in this case. I did that 5 times and stacked them to average out the noise.

    I got the same filter and love it. Great savings over having to buy several filters for lens, scope, and eyepieces.

    The equipment is on an equatorial mount so that it can track with the earths rotation.
     
  9. Gvidon

    Gvidon New Member

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    Bulb
     

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