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Thread: M42 (Orion Nebula)...1 Sec Exposures With Results That May Just Surprise You!!!

  1. #91
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    Default Re: M42 (Orion Nebula)...1 Sec Exposures With Results That May Just Surprise You!!!



    The main impact of LP is that it limits the exposure length. So if you are doing short exposures anyway it is less of an issue.

    Where I live a magnitude 4 star can only be seen on the best of nights, still it was possible to take an image like this (and that was only imaging for less than 30 minutes - I hope I can produce something better in the future).
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  3. #92
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    Default Re: M42 (Orion Nebula)...1 Sec Exposures With Results That May Just Surprise You!!!

    Christian,

    That's a very nice M27 image for only using 10 second exposures. It's actually better than mine using 30 second exposures. Although you had a total exposure time of about a half hour, and I only had about 17 minutes on mine. I was using an 8" SCT for mine, too.

    I was wondering the same thing about the LP, and whether it would have any effect on an exposure that is only 1 second long?
    Mark :0)

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    Default Re: M42 (Orion Nebula)...1 Sec Exposures With Results That May Just Surprise You!!!

    Hi 3D Romeo,

    shift of memory helped, did a +700 registration of a M33 series, though only 398 accepted due to "quality", but those pull through. However M33 is a apparently a hard cookie to get details from, if judging from sky-map.org detailed shots. This is about what I got with nearly 4 h exposure. Currently doing a 600 shot, 15 sec exposure series of NA/Pelican to see if shorter time gives less corona.
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    Default Re: M42 (Orion Nebula)...1 Sec Exposures With Results That May Just Surprise You!!!

    Quote Originally Posted by FreddeF View Post
    Hi 3D Romeo,

    shift of memory helped, did a +700 registration of a M33 series, though only 398 accepted due to "quality", but those pull through. However M33 is a apparently a hard cookie to get details from, if judging from sky-map.org detailed shots. This is about what I got with nearly 4 h exposure. Currently doing a 600 shot, 15 sec exposure series of NA/Pelican to see if shorter time gives less corona.
    Good to hear that you're now able to stack your images.

    Something you have to remember with most pre-built computers and laptops, especially from the big house manufacturers, is that the components inside are usually just "basic" or "beginner" level items (unless specifically noted). Take the memory for instance, most people just look at the type of memory, or the amount of memory. But anybody that is into building computers, or over-clocking them, knows that there are a LOT of grades, and classes of memory, that can effect how your computer performs. Same goes with most of the components in your computer. Which is why some times a program may work fine on one machine, and not on another...or as you just discovered, sometimes simply just swapping a one component can make a big difference.

    WOW...4 hrs of exposure time on M33, and still not much detail. Sorry, I have to take your word on that. Because I can't view your image right now do to my slow dial-up internet connection. I plan on photographing M33 as soon as I get my mount sorted out. I'm not sure if it's bright enough to capture with 1 second exposures, like I did with M42?
    Mark :0)

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    Default Re: M42 (Orion Nebula)...1 Sec Exposures With Results That May Just Surprise You!!!

    When looking at Google Pictures, M33 seem to be a demanding object, a 3-400 mm tele maybe a bit on the short side, as well as my older one not having enough quality. The 4 h one has a bit more light, than my previous one, being 121 shots, approximately ~1.15 h, but not that much and I think it also lost in detail as well.

    Question is, you got a very good result with the 1 sec, but what can you produce with say 5 or 10 sec exposures, same tele, same number? Are you going to blow us others away ?
    Last edited by FreddeF; 09-26-2013 at 07:57 AM.
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    Default Re: M42 (Orion Nebula)...1 Sec Exposures With Results That May Just Surprise You!!!

    Sounds like a nice challenge Fredde...But 1 second is the longest exposures I can take from my fixed tripod without getting serious trailing in my images. And once I get my iOptron ZEQ25 mount all sorted out, I'll be going back to more "normal" AP exposure times of 2-5 minutes long. So as interesting as it might be to try out other short exposure images with 5 and 10 second exposures. I don't see it happening any time soon. I've already put my shutter mechanism through enough torture already with the 4000+ images I took over this 2 day experiment.

    Nice images of M33...a lot better than what I was expecting to see from such short exposures.
    Mark :0)

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    Default Re: M42 (Orion Nebula)...1 Sec Exposures With Results That May Just Surprise You!!!

    Just watned to say thanks for the thread, Mark (and everyone that contributed). Nice images, but I'm not sure about racking up all the exposures on my aging T2i. Some good food for thought, though!

    And...it gives the thread a little bump-up for new-users signing on.

    Ed

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    Default Re: M42 (Orion Nebula)...1 Sec Exposures With Results That May Just Surprise You!!!

    Great images Mark. I have just purchased a T2i and bought a decent tripod and was going to have a go at taking photos of DSO's. Your photos are very inspiring. I too saw that video of Forrest Tanaka. I will definitely give this a try.
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    Default Re: M42 (Orion Nebula)...1 Sec Exposures With Results That May Just Surprise You!!!

    Please note that Necro posting is discouraged on this forum as per our forum rules and terms of service.

    Please take a look at the date of the original post before making a reply.
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