Re: PESO: My first DeepSkyStacker attempt

Agreed! Cheers, Christine On Oct 17, 2013, at 5:53 AM, Chris Mitchell wrote: > Superb Darren. > Chris > > On 16 October 2013 00:00, Darren Addy wrote: >> Y'all may recall >> (hey, that rhymes!) >> the m31 (Andromeda galaxy) image I shared a few days ago. It was a >> single 45 second exposure

Re: PESO: My first DeepSkyStacker attempt

Superb Darren. Chris On 16 October 2013 00:00, Darren Addy wrote: > Y'all may recall > (hey, that rhymes!) > the m31 (Andromeda galaxy) image I shared a few days ago. It was a > single 45 second exposure and made from a single in-camera JPEG (not > even the RAW file). > Refresher link: http://www

Re: PESO: My first DeepSkyStacker attempt

On Wed, Oct 16, 2013 at 06:10:22AM -0500, Darren Addy wrote: > Thanks to all for the encouraging words. > > Regarding aiming, I did see one guy say that shining a laser pointer > into the viewfinder (and therefore bouncing off the prism, mirror and > out the lens) makes a nice aiming device. I hav

Re: PESO: My first DeepSkyStacker attempt

On Wed, Oct 16, 2013 at 06:10:22AM -0500, Darren Addy wrote: > Thanks to all for the encouraging words. > > > Astronomical stacking is a bit like the old days of film. You don't > get quite the instant gratification of digital because you need to put > a number of exposures together and coax the

Re: PESO: My first DeepSkyStacker attempt

Ok, just a matter of vocabulary :) Le 16/10/2013 23:31, Darren Addy a écrit : I knew what "flats" were, but the "flat field images" made me wonder if you might be referring to something else. Thank you Stéphane! On Wed, Oct 16, 2013 at 3:58 PM, poirierstephane wrote: And I precise I don't alw

Re: PESO: My first DeepSkyStacker attempt

I knew what "flats" were, but the "flat field images" made me wonder if you might be referring to something else. Thank you Stéphane! On Wed, Oct 16, 2013 at 3:58 PM, poirierstephane wrote: > And I precise I don't always do the axis calibration the same order, it's > totally random ;-) > Also you

Re: PESO: My first DeepSkyStacker attempt

According to such a map for France, I'm in a yellow-to-orange zone located about 50 km (30 miles) south of Paris (11,500,000 people in the whole urban area !) I shoot the deep sky from this place: http://goo.gl/maps/FsbE9 Le 16/10/2013 22:50, Darren Addy a écrit : I have not yet learned how to

Re: PESO: My first DeepSkyStacker attempt

And I precise I don't always do the axis calibration the same order, it's totally random ;-) Also you asked me a few days ago (on pentaxforum if I'm right) what I mean by: "Otherwise you need to add your own flat field images in the pp." Flat fields images are used to correct images from optical

Re: PESO: My first DeepSkyStacker attempt

I have not yet learned how to do a real accessment of the night sky conditions (transparency, minimum magnitude, etc). I need to do that. This image was taken before the 23% moon had set in the extreme west, and I was about 7 miles outside of a town of 35,000 people, but looking away from it. I did

Re: PESO: My first DeepSkyStacker attempt

Yes of course I already known you Darren, but I'd didn't pay attention to your name in your original message, my apologizes ! About the calibration, I proceed not particulary slowly, only the time it takes for me to carefully rotate the camera around the 3 axis. 45 seconds exposures for 135mm l

Re: PESO: My first DeepSkyStacker attempt

Hi Stéphane, Your work is my inspiration and I have shared the link to your K-5/O-GPS1 work in many, many places. (We have corresponded via email in the past). Thanks for your link to your procedure. I was wondering if you could describe the way you do the "precise calibration". For example, do yo

Re: PESO: My first DeepSkyStacker attempt

Very cool result :) But I suspect you benefit of good sky conditions, isn't it ? I also use DSS and I got a very similar result (although with the a K-5 & DA*200): poirierstephane.free.fr/photos/picture.php?/3542/category/132

Re: PESO: My first DeepSkyStacker attempt

That's just entirely too cool, Darren. I guess I'm going to have to put you in my plonk file so I won't be tempted to get one of those GPS modules until I can scrape up enough pennies to get a K-3 and a new computer to handle the files. And it doesn't help that I've rediscovered my obsession w

Re: PESO: My first DeepSkyStacker attempt

Here is a nice explanation of the process of taking astrophotography without a tracker (just a tripod mounted camere). He does a good job of explaining the various parts of the stacking process (Light frames, dark frames, bias frames (but not flats, which he does not use. Flats help DeepSkyStacker

Re: PESO: My first DeepSkyStacker attempt

On Wed, Oct 16, 2013 at 7:06 AM, Matthew Hunt wrote: > might work well for your application (aside > from having to swap between the O-GPS1 and the finder). I think that "aside from" is a biggie. If you break the connection between the O-GPS1 and the camera (or turn off and back on the O-GPS1) yo

Re: PESO: My first DeepSkyStacker attempt

On Wed, Oct 16, 2013 at 7:10 AM, Darren Addy wrote: > Regarding aiming, I did see one guy say that shining a laser pointer > into the viewfinder (and therefore bouncing off the prism, mirror and > out the lens) makes a nice aiming device. I have one ordered, but it > hasn't shown up yet. If that

Re: PESO: My first DeepSkyStacker attempt

> Regarding aiming, I did see one guy say that shining a laser pointer > into the viewfinder (and therefore bouncing off the prism, mirror and > out the lens) makes a nice aiming device. Heh! Try _that_ with a mirrorless camera. Score one for the DSLR. ;-) Fine work, Darren! On Wed, Oct 16, 20

Re: PESO: My first DeepSkyStacker attempt

Very impressive shot... SO this is exposure stacking? Very cool... Mark On 10/15/2013 7:00 PM, Darren Addy wrote: Y'all may recall (hey, that rhymes!) the m31 (Andromeda galaxy) image I shared a few days ago. It was a single 45 second exposure and made from a single in-camera JPEG (not even t

Re: PESO: My first DeepSkyStacker attempt

Thanks to all for the encouraging words. Regarding aiming, I did see one guy say that shining a laser pointer into the viewfinder (and therefore bouncing off the prism, mirror and out the lens) makes a nice aiming device. I have one ordered, but it hasn't shown up yet. If that works it would make

Re: PESO: My first DeepSkyStacker attempt

The banner has disappeared. It's probably just an occasional advertisement that pops up. I'm pleased that I can now see the lower left corner of Darren's excellent photo. Paul On Oct 16, 2013, at 12:26 AM, David Mann wrote: > On Oct 16, 2013, at 2:07 PM, Larry Colen wrote: > >> On Tue, Oct 1

Re: PESO: My first DeepSkyStacker attempt

You know, somewhere out there in that cosmic vastness, back in the endless aeons of space, beyond the furthest edges of time, there are probably many hundreds of ancient civilisations where that beautiful scene of Frank's with the loving father and his son on the bicycle is being played out in m

Re: PESO: My first DeepSkyStacker attempt

That's very impressive. I imagine you will get very good indeed at this, and I look forward to watching it happen. B > On 16 Oct 2013, at 00:00, Darren Addy wrote: > > Y'all may recall > (hey, that rhymes!) > the m31 (Andromeda galaxy) image I shared a few days ago. It was a > single 45 second

Re: PESO: My first DeepSkyStacker attempt

On Oct 16, 2013, at 2:07 PM, Larry Colen wrote: > On Tue, Oct 15, 2013 at 08:38:04PM -0400, Paul Stenquist wrote: >> As I said, a fabulous shot. But what's with Flickr putting a banner in the >> corner of your frame, covering part of the image -- "Try our New Photo >> Experience." And people co

Re: PESO: My first DeepSkyStacker attempt

On Oct 16, 2013, at 4:22 PM, Stan Halpin wrote: > Thanks for the explanation Darren. I'm thinking I'll go buy a lottery ticket > and then shop around for a used observatory when I get ready to try my hand > at this. Maybe you could borrow Hubble while it's on furlough. Cheers, Dave -- PDML

Re: PESO: My first DeepSkyStacker attempt

I wish I could get Google sky for my k5. That would make aiming shots like this a lot easier. Alternatively you could in theory set the ogps on a target and it could tell you how to correct on subsequent shots. It's just a simple matter of programming. Darren Addy wrote: >You are technically

Re: PESO: My first DeepSkyStacker attempt

Thanks for the explanation Darren. I'm thinking I'll go buy a lottery ticket and then shop around for a used observatory when I get ready to try my hand at this. stan On Oct 15, 2013, at 10:12 PM, Darren Addy wrote: > You are technically correct, Stan. But I was out there for approx. 75 > minu

Re: PESO: My first DeepSkyStacker attempt

You are technically correct, Stan. But I was out there for approx. 75 minutes to get my 6 minutes of integrated exposure time. After doing the precise calibration, a lot of my first shots were complete misses (Andromeda not even in the frame). And then when I finally located it and started taking i

Re: PESO: My first DeepSkyStacker attempt

Huh. I had imagined that you would locate the target or target region, set the camera, fire a series of shots, and then stack away. From your comments it seems that you need to re-target the target for each shot. I know the stars are "moving" relative to us, but I hadn't thought they would move

Re: PESO: My first DeepSkyStacker attempt

Thanks to all who have looked (and/or commented). The image is a crop of what I got from doing an "overlap" stack in DSS. It is difficult to frame each sub-exposure exactly the same (particularly when simply using a ballhead), but with DSS that doesn't matter because it will stack only the common p

Re: PESO: My first DeepSkyStacker attempt

On Tue, Oct 15, 2013 at 08:38:04PM -0400, Paul Stenquist wrote: > As I said, a fabulous shot. But what's with Flickr putting a banner in the > corner of your frame, covering part of the image -- "Try our New Photo > Experience." And people complain about ads on photo.net?? Bizarre. I don't see t

Re: PESO: My first DeepSkyStacker attempt

As I said, a fabulous shot. But what's with Flickr putting a banner in the corner of your frame, covering part of the image -- "Try our New Photo Experience." And people complain about ads on photo.net?? Bizarre. Paul On Oct 15, 2013, at 7:00 PM, Darren Addy wrote: > Y'all may recall > (hey, t

Re: PESO: My first DeepSkyStacker attempt

Wow! Cheers, frank Darren Addy wrote: >Y'all may recall >(hey, that rhymes!) >the m31 (Andromeda galaxy) image I shared a few days ago. It was a >single 45 second exposure and made from a single in-camera JPEG (not >even the RAW file). >Refresher link: http://www.flickr.com/photos/pixelsmithy/10

Re: PESO: My first DeepSkyStacker attempt

Good point. stan On Oct 15, 2013, at 7:48 PM, Paul Stenquist wrote: > I think there are times when the subject of a photo is so significant that > centering is desirable. This is one of those times, > > Paul via phone > >> On Oct 15, 2013, at 7:38 PM, Stan Halpin wrote: >> >> Very nice ind

Re: PESO: My first DeepSkyStacker attempt

I think there are times when the subject of a photo is so significant that centering is desirable. This is one of those times, Paul via phone > On Oct 15, 2013, at 7:38 PM, Stan Halpin wrote: > > Very nice indeed! > > Note that the following is a serious question and is in no way intended to

Re: PESO: My first DeepSkyStacker attempt

Very nice indeed! Note that the following is a serious question and is in no way intended to diminish your accomplishment and the complexity of producing this sort of image . . . A classic problem with newbies is the tendency to put the main subject in center-frame. A similar problem with us m

Re: PESO: My first DeepSkyStacker attempt

Excellent attempt! I do note that a lot of the stars in the lower half of the image have a faint companion just below them, so something is not aligning during the stacking process. Still, the detail in M31 is amazing. I've been getting more into astrophotography, as well, but with an old Niko

Re: PESO: My first DeepSkyStacker attempt

Awesome! - Marco On Oct 15, 2013, at 4:00 PM, Darren Addy wrote: > Y'all may recall > (hey, that rhymes!) > the m31 (Andromeda galaxy) image I shared a few days ago. It was a > single 45 second exposure and made from a single in-camera JPEG (not > even the RAW file). > Refresher link: http://

Re: PESO: My first DeepSkyStacker attempt

Very cool! On Tue, Oct 15, 2013 at 06:00:44PM -0500, Darren Addy wrote: > Y'all may recall > (hey, that rhymes!) > the m31 (Andromeda galaxy) image I shared a few days ago. It was a > single 45 second exposure and made from a single in-camera JPEG (not > even the RAW file). > Refresher link: http:

Re: PESO: My first DeepSkyStacker attempt

Superb! Paul via phone > On Oct 15, 2013, at 7:00 PM, Darren Addy wrote: > > Y'all may recall > (hey, that rhymes!) > the m31 (Andromeda galaxy) image I shared a few days ago. It was a > single 45 second exposure and made from a single in-camera JPEG (not > even the RAW file). > Refresher link:

Re: PESO: My first DeepSkyStacker attempt

Impressive results! Godfrey > On Oct 15, 2013, at 4:00 PM, Darren Addy wrote: > > Y'all may recall > (hey, that rhymes!) > the m31 (Andromeda galaxy) image I shared a few days ago. It was a > single 45 second exposure and made from a single in-camera JPEG (not > even the RAW file). > Refresher

PESO: My first DeepSkyStacker attempt

Y'all may recall (hey, that rhymes!) the m31 (Andromeda galaxy) image I shared a few days ago. It was a single 45 second exposure and made from a single in-camera JPEG (not even the RAW file). Refresher link: http://www.flickr.com/photos/pixelsmithy/10181475554/ Well, I finally got to attempt my f