March 06, 2015, 06:37:58 AM

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Messages - emag

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Landscape / Re: Deep Sky Astrophotography
« on: March 01, 2015, 02:16:49 AM »
   I've been looking up at the sky for 50+ years and pointing a camera at it, with and without telescopes, for most of those years.  Never had extremely deep pockets, so I've learned to make do with what I can.  I do most of my imaging with a CG5-ASGT mount to which I attach any one of several scopes / cameras.  Due to light pollution in my area, I'm limited to subs of 30 – 90 seconds unless I travel to a dark site.  Living at sea level, I also have frequent issues with seeing – deconvolution is a must when processing with PixInsight.  I have no problem getting seeing-limited stars with a 2000mm telescope, although I often bring it down to ~1250mm with a focal reducer or use a 1000mm scope.  An EQ6 class mount would be better, but it costs more than I'm willing to spend right now and wouldn't do anything for seeing.  This image of Thor's Helmet is cropped from a stack taken with a 6D on an 8 inch f/5 Newtonian.  My field computer was OOC that night, so these were 30 second subs, unguided.

   For carrying a camera with a wide to medium telephoto lens, I adapted my old C8 drive base to hold a tripod head.  Even that old spur gear drive is good for 30 second exposures.  These old C8 scopes, with wedge and tripod, are often available for a great price on Astromart.  If you can find one of these, a little bit of wood and a few hours work will get you a tracking camera mount that works quite well.

And an image of Orion with a modified 40D and an EF50/1.8, taken with that mount.  That lens is somewhat atrocious unless stopped down to at least f/3.5.  I have a old Takumar 50/2.0 and a Dandelion adapter, I've used it for day shots but now I'm curious to try it for astro. 

NGC2467, taken with the 6D on the C8 with focal reducer, guided.  A good but not great night, I was driving through fog on the way home.

EOS Bodies - For Stills / High speed video of 7D mirror and shutter
« on: February 07, 2015, 11:55:01 AM »
I thought this was interesting.  10,000 fps video of a 7D mirror and shutter in action.

EOS Bodies / Re: 6D Mark II speculation...
« on: February 04, 2015, 09:21:39 PM »
6Da anyone?

EOS Bodies / Re: What will become of the 5D Mark III?
« on: February 02, 2015, 10:37:12 PM »
It will find its way into my camera bag, my 6D will go off for astro modification and I will be done with camera bodies for a long time.

Landscape / Re: Deep Sky Astrophotography
« on: January 11, 2015, 12:02:54 AM »
We had our ONE clear night, first in 3 weeks......and I had to go to NOLA that night.  4/5 days until the next possible night.  New field flattener hasn't seen a single photon.

Lenses / Re: Any ideas on getting good focus when shooting thru glass pane?
« on: December 23, 2014, 08:46:24 PM »
The glass may be squeaky clean, but it's not optical glass and is likely not very flat on either surface.  If a MF shot doesn't look good either, then that's your issue.  Using telephoto magnifies the problem. 

And yes, Puerto Rico is one of our infamous welfare states.
Someday you should visit the Commonwealth of Puerto Rico.  Bring your camera and enjoy the natural beauty of the "infamous welfare state."  Welfare caseload per capita in Puerto Rico is lower than in 34 other states/territories and the District of Columbia.

Lenses / Re: Buying Advice: What First Lens for a Full Frame?
« on: December 16, 2014, 10:36:45 PM »
No  matter what else you get, be sure to get the 50/1.8.  Dirt cheap and optically excellent.  If it falls to the ground on a cold night while you're shooting astro because you foolishly placed it on the bumper and forgot........get another one.  ;D

I just don't understand the value put on this photo.  'Bella Luna' is hideous. But he does good work in general.  I could see it fetching 100's, maybe 1000's at most.  I guess it's all about marketing.

EOS Bodies / Re: Patent: Sensor Technology
« on: November 29, 2014, 11:19:51 AM »
what I could get out of it from the link provided filtering the japanese signs through babylon translater:

I think I sprained my brain reading that............l :D

Street & City / Re: Famous icons in your city
« on: November 17, 2014, 09:22:58 AM »
Wait... wait - one of the first carousels in the USA is here and a church from the days of the whaling industry is still being used. I guess I will have to take some picts. I'll have to start a new forum - Semi-famous little town landmarks.
......I keyed in on the carousel and whaling industry...are you near Westerly?  I grew up there. 

.........three pages on this 'new sensor design' topic and not ONCE has anyone mentioned DR???  Y'all are slipping......
(oops, I see it was mentioned whilst I was typing)

I partially agree with OP's sentiments.  My old Vista 32 laptop runs software my Win8.1 machine won't, some of which is important to me for astrophotography.  When the left hinge pinched the video cable (common HP problem), I bought the Win8.1 laptop, then took my time and replaced the video cable in the Vista laptop, installed a SSD and made it a dual boot Ubuntu/Vista.  It's now the laptop I take to the field for astro sessions.  Ubuntu and Wine run *most* of what I want, but when needed I can boot into Vista for those programs that refuse to run properly with Wine.  There may be a remedy but it's beyond my abilities.  As a bonus, Ubuntu boots (and shuts down) faster than I can fart, and that's pretty darn quick.  Great for when I just want to check email or peruse the latest DR argument on CR.  Personally, I consider $10/month for always having the latest version of Photoshop a fair price, and Adobe has stated that Lightroom will always be available as a standalone version.

EOS Bodies / Re: Next Rebel Going EVF? [CR1]
« on: October 02, 2014, 09:30:17 AM »
One advantage my old G2 has over my DSLRs is high speed sync without having to use an expensive HSS capable flash.  Maybe this CR1 camera would have this capability. 

Landscape / Re: Flowers and other Flora
« on: September 02, 2014, 10:56:48 PM »
In my sister-in-law's garden

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