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#2701 Dom543

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Posted 12 February 2015 - 04:51 PM

Although the full moon is now past history, I still post the last two of my H-alpha images from last week. They are from the opposite ends of the image scale range of my camera lenses and may be useful as targets that fit certain frames.

 

Flame and Horsehead Nebulas with a 300mm f4 Takumar lens and Lodestar x2c with LodestarLive v.011.

Attached File  Flame.and.Horsehead_3x60s_c60-s2.5_2015.2.7_22.13.23.jpg   115.5KB   8 downloads

 

Barnard's Loop with a 35mm f2 Takumar lens and Lodestar x2c with LodestarLive v.011.

Attached File  Barnard.s.Loop_5x90s_c60-s2.5_2015.2.9_23.14.46.jpg   133.79KB   7 downloads

 

I searched this album and couldn't find any EAA image of Barnard's Loop. I was pleasantly surprised how easy it was to get it with the Lodestar and H-alpha filter. I mean-stacked 5 frames because it made the final images nice and smooth. But even the first single frame was fully enjoyable.

 

Clear Skies!

--Dom


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#2702 Don Rudny

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Posted 12 February 2015 - 05:33 PM

Excellent, Dom.  I didn't realize how wide the FOV is in your second image until I saw the HH/Flame near the top of the frame.

 

Don



#2703 Relativist

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Posted 12 February 2015 - 06:02 PM

I agree that's excellent, IMO it illustrates quite well framing and the difference in speeds f/2 vs f/4 give (taking into account differing FOVs). In addition it shows us that if we open our minds, targets that seemed out of reach might really not be.



#2704 budman1961

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Posted 12 February 2015 - 08:29 PM

Here is a quick Rosette Nebula from Last night.  29 seconds, no stacking or PS enhancements.

 

Meade 6000 80mm, MFR-5-II focal reducer, Meade Broadband Nebula filter.

 

Rosette Nebula
 
Thanks for looking!
 
Andy


#2705 Don Rudny

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Posted 14 February 2015 - 02:49 PM

Hi All,

 

Had fun night last night trying to view HCG50 with the Lodestar and Lodestar Live.  Saw some other things along the way and ended with Eta Carinae that is starting to rise earlier now.  The mono LS does appear to give greater detail.  The color  LS is not bad, but the Ha is affected by the Bayer mask and loses resolution.

 

Attached File  image.jpg   166.56KB   9 downloads

Attached File  image.jpg   66.5KB   7 downloads

Attached File  image.jpg   123.83KB   5 downloads

Attached File  image.jpg   30.5KB   10 downloads

 



#2706 Don Rudny

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Posted 14 February 2015 - 02:50 PM

Attached File  image.jpg   110.39KB   8 downloads

Attached File  image.jpg   153.17KB   7 downloads


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#2707 Dom543

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Posted 15 February 2015 - 12:13 AM

Great images of Eta Carinae Don! I believe that these are the first EAA images of Eta Car I have seen taken from the US.

It is also interesting to see how much more finer detail the mono images show.

 

Keep those great images coming!

--Dom



#2708 John59

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Posted 16 February 2015 - 02:09 AM

Hello everyone!
Sorry for being away for so long.
Between moving to night shift and having very uncooperative weather I have not had much time to do any astro-video activities.
However I caught a break a few nights ago and had a very clear and stable sky and it was a night off from work as well.
I am particularly excited about this posting as I have been testing a prototype focal reducer from Astro-Video Systems.

This is a reducer intended to take a F10 SCT and reduce it to F1.8 through the rear specifically with 1/3 inch CCD sensors.
I have a couple of comparisons that I am loading up.
If you want more information please go to http://www.astro-vid...l-reducers.html

This first image is M64 at  through my C11. 

I am using an Astro-Video Systems MK IV in all the comparisons.

This is what I typically see when looking at galaxies.

Attached File  M64 256 57.jpg   54.64KB   5 downloads



#2709 John59

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Posted 16 February 2015 - 02:10 AM

This is with the prototype reducer.

Attached File  M64 256 35 Super Reducer.jpg   58.96KB   8 downloads


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#2710 John59

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Posted 16 February 2015 - 02:13 AM

Due to the FOV of the C11, I usually use the C11 for planetary nebula, globs etc.

I normally use my six inch refractor for galaxies. 

This is NGC4565. 

This is also known as the Needle Galaxy without the reducer.

 

Attached File  NGC4565 int256 Gain63.jpg   178.44KB   6 downloads



#2711 John59

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Posted 16 February 2015 - 02:15 AM

Here is NGC4565 with the reducer. 

I could get use to this.

With this prototype reducer and the light gathering capability of the C11, I may rethink my setup for galaxies.

Attached File  NGC4565 Int128 Gain57 Super reducer.jpg   116.04KB   7 downloads



#2712 Dwight J

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Posted 16 February 2015 - 12:00 PM

What were the lengths of the integrations and was a filter used?  I am glad you can now fit these objects in the longer scopes.  Galaxies are helped by using larger aperture.



#2713 David B in NM

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Posted 16 February 2015 - 12:22 PM

Dwight,

 

When I clicked the image this info came up at the bottom:

 

NGC4565 Int128 Gain57 Super reducer.jpg -

 

It appears to be a 2 second integration.

 

 

David B in NM



#2714 John59

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Posted 16 February 2015 - 03:18 PM

What were the lengths of the integrations and was a filter used?  I am glad you can now fit these objects in the longer scopes.  Galaxies are helped by using larger aperture.

Hello Dwight,

The integration time was 2 seconds with a gain of 57.  

The filter used was Orion's Skyglow Imaging Filter.

There are several other settings that are specific to this camera and I am not sure they would be helpful.

Also you will notice some dust motes in the frame.

I found smudges on the front lens after all the captures.

I can go to higher integration and less gain but the idea here was fastest time to display with a good presentation.

I am liking what I see, but this is still prototype and still needs a bit more testing.

I plan on testing in my C8 as soon as the weather permits.  

This has potential to be a great accessory for these smaller scopes.

Keep in mind this is being developed for the 1/3 sensors.

I have no idea what this the results would be with a 1/4 or 1/2 sensor.



#2715 Dwight J

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Posted 16 February 2015 - 03:21 PM

Thanks David, I should've clicked.  Super result for short integrations John!  I don't see evidence of abberations so it would be interesting to see what it would do with a 1/2" sensor.  



#2716 Dom543

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Posted 17 February 2015 - 01:03 AM

Hi John,

 

I would be curious to see some nebula images. E.g the Crab or Thor's Helmet should be suitable targets for your 500mm focal length.

 

Thanks,

--Dom



#2717 RandyC

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Posted 20 February 2015 - 12:34 PM

Hi all, Here are some fantastic new shots taken with my new Sony A7s. The large full frame sensor combined with the BionZ processor elminates virtually all noise. The contrast is excellent and can be adjusted manually as well. You can use a photo image enhancer to really bring out details with one-click, like Fotor. These images were taken with the A7s using the HEUIB-II filter at 5min exposure, iso2500, BionZ NR and Fotor Auto.

 

Thanks for looking. Enjoy!

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#2718 RandyC

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Posted 22 February 2015 - 12:21 AM

Got 9 galaxies in Virgo last night. https://www.flickr.c.../galaxygardens/

 

all 6 mins iso1600, c11/f10, a7s



#2719 nytecam

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Posted 24 February 2015 - 05:40 PM

Some of tonight's haul eg Lynx quasar @ 12BLY [30s]; N2419 GC Lynx {120s]; Eskimo PN [20s] - full data on images.

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