Another Astrofest Rho Ophiuchi

[Garbz]

Well dataloss hits everyone.

Repost of my shot of Rho Ophiuchi, see if it stays up for more than an hour or two this time.

Few hours with a D800 and a 200mm lens.

[Garbz]

And since I was halfway through replying to this thread when the dataloss happened:



Nikkor AF 80-200mm f/2.8D, ancient one.



Stoked. I get the feeling my Corona Australis shot will be better from the camera than the telescope too. The widefield stuff is quite fun.



I left mine outside during a storm. I think it'll survive a little cold weather :-)
The only reason I went for any kind of sharpening was I accidentally shot at f/2.8 the original was actually quite soft. Normally I just reach for Unsharp Mask because I fail at deconvolution, but I may have been looking over your shoulder when you did it last week and may have picked up a trick or two. ;)

[Elio]

A beautiful image of a spectacular area!

[RickS]

I have a D700 that has been at -30C shooting the Aurora Borealis in Norway so it gets the outside duties at present :)

I'm glad if I was able to help. Deconvolution is like a free lunch :D

[Garbz]

My D200 failed at -55C in Canada. It was like watching a slow motion train-wreak. First the camera got slow focusing, then the focusing system failed, then it became stiff to zoom, then the mirror got audibly slower to move, the LCD stopped refreshing (the black / white flashes changed to smooth shades of changing grey), and finally I pushed the shutter and didn't hear the mirror come down again. The camera could only say ERR. Came good after a nice thawing in the car though :-). It was hard keeping batteries warm so they keep working.

Also my experience with deconv thus far is that if there's any noise on the background of the image it turns the noise profile to complete garbage. I'm sure I've been doing something wrong :rolleyes:

[RickS]

I use a mask to protect low signal areas. Just grab a copy of the Luminance (or the image itself if it's grayscale) and stretch it with the blacks clipped a bit.