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#1751 John59

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Posted 24 October 2012 - 03:48 PM

Nice result mega!

#1752 nytecam

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Posted 25 October 2012 - 03:09 AM

Very impressive HH in 90s :grin: As they say "try eyeballing that one!!!" :confused:

#1753 CONQUEST1

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Posted 25 October 2012 - 08:15 PM

First Jupiter. Skies 3. Frame capture/snapshot. Untouched jpeg. Equip specs: Orion 8" SVP, SCB2000 (zoom set at 2.3), 2x barlow'd, IR cut. What f.l. is the Sammy out of the box, no zoom (compared to an eyepiece)?

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#1754 mclewis1

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Posted 25 October 2012 - 09:46 PM

What f.l. is the Sammy out of the box, no zoom (compared to an eyepiece)?

1/3" sensor = approximately the fov of a 6mm 50° eyepiece (like a Plossl)

Really nice Jupiter by the way Jerry.

#1755 CONQUEST1

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Posted 25 October 2012 - 10:28 PM

Mark,
Thank you very much. So, with my 203mm aperture and 1000mm focal length, my calculation should be (appx.): 1000/1.4 = 714x? Wow, I don't know if that is possible with my scope. Does that seem right?
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Jerry

#1756 mclewis1

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Posted 26 October 2012 - 10:30 AM

Jerry,

First actual magnification comparisons get a little silly with digital cameras since you can change the final representation at will. Actual magnifications rely on how you reproduce the image that's on the CCD/CMOS sensor.

With your Sammy and a 1000mm scope Jupiter will appear to be the same size when measured against the fov of a 6mm Plossl eyepiece as across the fov of the camera. A 6mm eyepiece in your scope will produce about 167X.

For your Jupiter shot with a 2x Barlow your working at about 2000mm ... so about 333x, then with the digital zoom at 2.3x you'd be at something equivalent to 767x. Yes, this is magnification that likely wouldn't be very useful visually, but remember that you're actually capturing at 333x and only then increasing the magnification of the image within the camera.

The video camera is however running at many frames per second (depends on what exposure settings you used) and so it's "freezing" the seeing. I'll bet looking at all the individual frames in the video stream that the majority of them wouldn't be very good.

#1757 CONQUEST1

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Posted 26 October 2012 - 10:56 AM

Mark,
Thanks again, very informative. Yes, the avi. stream is rough. Respectfully, how is it that you come by all your knowledge related to these questions, if I may?
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Jerry :bow:

#1758 Murali

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Posted 29 October 2012 - 03:28 PM

My first astro images! Taken from the image on a 9 inch LCD monitor using a mobile phone camera. No post-processing (should be obvious:) except for resizing for submission.

Date: Oct 26, 2012
Location: India
Telescope: ES AR152 F/6.5 Refractor
Mount: Manual Alt-az
Camera: Mallincam Jr. (ALC: OFF, AGC: OFF, SENSE: OFF)

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#1759 John59

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Posted 29 October 2012 - 11:48 PM

Here is M2 captured through a C11 mounted on a CGEM-DX with a near full moon. The NTech video camera was set with AGC low and sense up X64 with a .5 Focal reducer, hence the coma at the edges.

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#1760 Craig in Tacoma

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Posted 12 November 2012 - 11:09 PM

Nice Image, stacked or otherwise..Here is a shot I took from my first light broadcast of M27.I used my Astro Tech 72mmED with the MC Universe and a 2" extension tube, no filtering, a single 50 second exposure, gain at 18.25, Gama at -15, Contrast at -20, Auto white balance.. Picture cropped to 800x800 aprox

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#1761 Craig in Tacoma

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Posted 12 November 2012 - 11:15 PM

And here is one taken of M42/43 and NGC1977 together, 2 min 30 sec, Gain at 16, Contrast at -20, Gama at -9, Astro Tech 72mm ED refractor, 2" extension tube, thru a closed window!!

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#1762 Dwight J

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Posted 22 November 2012 - 01:14 AM

This is a polar ring galaxy in Aries, NGC 660. Taken with a C14 @F3.3 - a single 3 minute exposure using a Mallincam Extreme and an IDAS LPS filter. Screen grab.

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#1763 Dwight J

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Posted 22 November 2012 - 01:18 AM

HorseHead nebula - C14 @ F3.3, Mallincam Extreme, IDAS LPS filter, 2:30 minute exposure

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#1764 Dwight J

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Posted 22 November 2012 - 01:20 AM

I was lucky to get NGC 253 just as it culminated just above the local horizon. Same exp, scope, and camera as the Horsehead above.

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#1765 Dwight J

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Posted 22 November 2012 - 01:21 AM

Lastly, the Eskimo Nebula using the C14 at F11 and a 3 second exposure using the Mallincam Extreme and the IDAS filter. Seeing was poor.

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#1766 nytecam

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Posted 22 November 2012 - 05:37 AM

Very nice images Dwight :bow: but 60m exp = video or CCD imaging :o

#1767 Dwight J

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Posted 22 November 2012 - 01:43 PM

I getcha. :lol:

#1768 John59

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Posted 12 December 2012 - 12:29 AM

Here is a snapshot of M1 taken 12/11/12. This was through my ES AR152 with a StellaCam III. This is from my very light polluted drive way.

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#1769 John59

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Posted 12 December 2012 - 12:30 AM

Here is a snapshot of NGC 891 taken 12/11/12. This was through my ES AR152 with a StellaCam III. This is also from my very light polluted drive way.

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#1770 John59

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Posted 16 December 2012 - 12:33 PM

Here is Orion Nebula with my StellaCam III
x128 with ES AR152

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#1771 Dwight J

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Posted 21 December 2012 - 07:43 PM

Here is an image of Comet Linear as it scoots through Ursa Major near Megrez last night while I was broadcasting on NSN. Screen grab of Mallincam VSS+, 6" Celestron SCT, F3.3 focal reducer, Lumicon Deep Sky filter, and 112 sec exposure.

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#1772 mega256

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Posted 27 December 2012 - 12:58 PM

This is K5 from last night,C14@F2,mcx-EX, agc 0 and 30 seconds..

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#1773 mega256

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Posted 27 December 2012 - 01:00 PM

and one more of K5 from last night

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#1774 nytecam

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Posted 28 December 2012 - 10:01 AM

Nice images there :bow: Here's M42 via Lodestar-C in 10s exp

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#1775 nytecam

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Posted 28 December 2012 - 10:03 AM

and M43 in 20s exp - these two are very bright :o

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