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Lunar and Astro Photography (7)

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WestCoastCannuck View Drop Down
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Post Options Post Options   Quote WestCoastCannuck Quote  Post ReplyReply Direct Link To This Post Posted: 03 September 2019 at 07:56
Great stuff CLK! I hope I don't get bit by the DSO bug... I REALLY don't have the time for it! lol

Here is my effort from earlier this evening at dusk.

At 11 degrees its not much good to shoot..... but I shot anyway to practice with the new mount/camera/software. I still have not tried my 6 inch Newtonian I just picked up and I already have yet another scope on its way - snagged a used Celestron C8 in great shape at a good price.    Pretty excited.... :) Can hardly wait for some nice high partial moons to shoot! I should be set for a while now. haha

This a stack of 390 best frames of 1560. Minolta 300/2.8 @ 900mm, ASI183MM camera, iOptron AZ Mount Pro.

Processed with Firecapture, AS!3, IMPPG and LR6.

Picked up a line in this stack somehow in the processing. Ah well.

19.4 % waxing



Edited by WestCoastCannuck - 03 September 2019 at 08:22
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clk230 View Drop Down
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Post Options Post Options   Quote clk230 Quote  Post ReplyReply Direct Link To This Post Posted: 03 September 2019 at 10:49
Really nice Mike. The ~20% moon also makes for some great compositions. I'm looking forward to hearing how the new purchases turn out. TFS
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Post Options Post Options   Quote mikey2000 Quote  Post ReplyReply Direct Link To This Post Posted: 12 September 2019 at 22:24
CLK - good start on DSOs! They are addictive and (expensive) to photograph! You get some interesting ones in the southern hemisphere...

Mike -I see you have and ASI astro camera! Welcome aboard! I presume you are soon needing to buy an extra disk drive to cope with the floods of data....
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    Post Options Post Options   Quote mikey2000 Quote  Post ReplyReply Direct Link To This Post Posted: 12 September 2019 at 22:38
    M51 Whirlpool Galaxy

    Here is this year attemp at this popular target. Shot in May with about 4 hours of exposures.
    (ASI600mm-Cooled L, R, G and B about an hour each plus one hour Ha, Skywatcher 200PDS scope on EQ6R mount)
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    clk230 View Drop Down
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    Post Options Post Options   Quote clk230 Quote  Post ReplyReply Direct Link To This Post Posted: 12 September 2019 at 22:59
    Mike, that's an awesome image, I love it!
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    Post Options Post Options   Quote jmeviking Quote  Post ReplyReply Direct Link To This Post Posted: 12 September 2019 at 22:59
    Moon landscape

    Remember a good photo is only one that has been taken....frozen in time...
     



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    Post Options Post Options   Quote jmeviking Quote  Post ReplyReply Direct Link To This Post Posted: 12 September 2019 at 23:01
    The Moon....



    Remember a good photo is only one that has been taken....frozen in time...
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    WestCoastCannuck View Drop Down
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    Post Options Post Options   Quote WestCoastCannuck Quote  Post ReplyReply Direct Link To This Post Posted: 15 September 2019 at 17:37
    @ Mike
    Outstanding M51 effort Mike! Yeah... 4 hours of data gathering. I simply can't go there. I don't have a yard, virtually all my sessions are setting up somewhere away from my house. (Hence my choice of a good travel Alt AZ type of mount.) Occasionally, the moon is just at the right angle for shooting from my driveway - those nights are great even if data is no good!


    Originally posted by mikey2000 mikey2000 wrote:


    Mike -I see you have and ASI astro camera! Welcome aboard! I presume you are soon needing to buy an extra disk drive to cope with the floods of data....


    I see you are using an 8 inch Newt! I was going to get one, but it would be pushing my luck with my mount - the weight not so much, just the size for catching wind. Views must be breathtaking on good nights.

    Yes, the data stream was quite a shock to me. 37.5 GB for a 2 minute clip!! LOL.... But, though I have yet to have a night worth posting or even shooting
    I have been practicing and have come to a workflow that I am happy with.

    I am not keeping the raw data - not even moving it temporarily to my PC. I run my camera from a new cheapish laptop with an SSD - it is fast enough to capture at about 75% of the camera's full output - (20mp uncompressed @ 15fps 8bit or 8fps 16bit - 8bit good enough for moon) I then transfer the data to a great and cheap 500GB external SSD I took a chance on. (transfers "in the field" at about 200-250MB/sec). Once home, I process on my PC directly from the external SSD. Working speeds very respectable. I then move only the stacked files to permanent storage. For any spectacular nights, I will also move the source files of the best stack. (5 or 10% best or whatever it is) So, actually much less data archived than my old DSLR routine.

    I am very much looking forward to playing with all my options with good moons. I still look forward to using my lenses - just because I can. The two scopes will bring things to a new level too I hope.

    This past friday I made a little adapter so I can use 1.25" inch astro filters on my Minolta big whites.    The reduced image circle is fine for the 1 inch sensor of the ASI camera. I have a long pass Baader I look forward to trying out on the moon. I am quite happy how it turned out. Works perfectly - the filter itself only JUST fits in the filter drawer slot with only about .1mm to spare, was an enjoyable challenge making this.....





    Clear Skies!!

    Mike



       

    Edited by WestCoastCannuck - 15 September 2019 at 21:25
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    Post Options Post Options   Quote mikey2000 Quote  Post ReplyReply Direct Link To This Post Posted: 15 September 2019 at 21:25
    Light pollution is indeed massively frustrating for those deep sky targets.. I have a narrow slot between our house and the neighbours plus whatever passes directly overhead. Also, there are several streetlights that beuatifully illuminate some parts of our garden.    That leaves about a one-month window of opportunity for the various targets that pass by year by year.

    Combine that with UK weather and the moon cycle...... 4 hours on-target is my personal best, so I'm extra pleased with my shot above.

    Well, the stars will still be there next year :-)
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    Post Options Post Options   Quote mikey2000 Quote  Post ReplyReply Direct Link To This Post Posted: 15 September 2019 at 21:26
    @jmeviking - nice shots! The beyond-real PP gives a nice touch.
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    Post Options Post Options   Quote clk230 Quote  Post ReplyReply Direct Link To This Post Posted: 15 September 2019 at 21:59
    Originally posted by WestCoastCannuck WestCoastCannuck wrote:

    This past friday I made a little adapter so I can use 1.25" inch astro filters on my Minolta big whites.
    Beautiful neat machining Mike. I always love seeing the handy-work of those skilled the mechanical arts.
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    Post Options Post Options   Quote WestCoastCannuck Quote  Post ReplyReply Direct Link To This Post Posted: 16 September 2019 at 03:26
    Originally posted by mikey2000 mikey2000 wrote:

    Light pollution is indeed massively frustrating for those deep sky targets.. I have a narrow slot between our house and the neighbours plus whatever passes directly overhead. Also, there are several streetlights that beuatifully illuminate some parts of our garden.    That leaves about a one-month window of opportunity for the various targets that pass by year by year.

    Combine that with UK weather and the moon cycle...... 4 hours on-target is my personal best, so I'm extra pleased with my shot above.

    Well, the stars will still be there next year :-)


    Yep. I can imagine the frustration. Four hours WOULD be quite something given that viewing situation! Takes a certain kind of patience that.      Tremendous result though!


    Originally posted by clk230 clk230 wrote:

    Beautiful neat machining Mike. I always love seeing the handy-work of those skilled the mechanical arts.


    Thanks CLK... now just have to send it off for Black anodizing with the next batch going out at work.
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    Post Options Post Options   Quote clk230 Quote  Post ReplyReply Direct Link To This Post Posted: 16 September 2019 at 09:11
    Here's some images from late Aug 2019 when we had some beautiful clear nights near Adelaide. I've been trying out different lens I already have to see if they're any good for astrophotography. I found the Minolta 100-200mm f/4.5 isn't too bad. It does a reasonable job of keeping the stars reasonably round even into the corners although, as expected for an lens this vintage, it struggles with chromatic aberration which even RawTherapee wasn't able to completely mitigate (especially in the Antares image). With that said let's get into the images...

    #1 Antares

    11x 60s f/4.5 ISO800

    #2 Lagoon and Trifid nebulae

    9x 60s f/4.5 ISO800

    #3 Large Magellanic Cloud

    15x 60s f/4.5 ISO1600

    #4 Small Magellanic Cloud

    15x 60s f/4.5 ISO1600

    All images taken with Sony A65 and Minolta 100-200mm f/4.5 on Star Adventurer
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    Post Options Post Options   Quote WestCoastCannuck Quote  Post ReplyReply Direct Link To This Post Posted: 21 September 2019 at 23:29
    Fabulous work CLK!!

    Me, I am still learning my new gear - pretty sure I need to make my exposures faster... at any rate, I still have yet to get a night in with the C8. Clouds rolled in as I was setting up this morning, and at sunrise I gave up - C8 was ready to go.

    Got one burst in with my 300/2.8. Only a few crops are worth sharing.







    Set-up for the shot the 3 above were cropped from. *** edit - missing the 3X converter that was on it for the shots - I "zero in" with the naked 300 first for the wider field.

    I should probably mention that this road is blocked off, no lights or access with a vehicle - for dog walkers and hikers... and just ME at night. ;)



    Never got a chance with the bad boy here.... One of these days. Hopefully tomorrow AM.






    Edited by WestCoastCannuck - 21 September 2019 at 23:41
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