DorinDXN
Posts: 1692
Location: Timisoara, Romania
Registered: 14 Nov 2006
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New pano with my new Sigma 8mm 3.5
Posted: 25 Nov 2007 at 19:50 GMT
updated: 25 Nov 2007 at 19:57 GMT
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Hi!
This is another pano made with my new Sigma 8mm 3.5
dorin.devalvr.com/pano/sigma2.html
Canon 350D + Sigma 8mm 3.5 NN3, Giottos VT-809 Tripod, remote, mirror lock-up,
6 around +T+B, this is also my first pano made with PTGui
note
I used PTGui this week-end to try some new kind of pano, that will need to wait at least one week to publish some results, anyway the method required using three kind of lenses/projections as input images in the same project in PTGui: equirectangular, rectiliniar at 18 mm and the third at rectiliniar at 55mm. PTgui really impressed me about easyness of placing control points beetween images with different kind of lenses, huge difference in resolution per degree beetween photos in the same project.
end note
This published here now is a regular pano not done by method described in note.
comments are welcome,
Dorin
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bigwade
Posts: 270
Location: Netherlands
Registered: 19 Oct 2005
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Re: New pano with my new Sigma 8mm 3.5
Posted: 25 Nov 2007 at 20:18 GMT
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Hi Dorin,
Looks good !
why 6 around ? 4 will do ! (+ 1T/B)
A bit higher viewpoint would make the pano more interesting !
Have Fun !
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spyboy
Posts: 240
Location: New Hampton, NH, United States
Registered: 7 Oct 2006
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Re: New pano with my new Sigma 8mm 3.5
Posted: 25 Nov 2007 at 21:29 GMT
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I have the 350D/Rebel XT & the Sigma 8mm f/3.5 fisheye as well.
I shoot 6 around (60 degrees) instead of 4. Part of this is because of the 1.6 cropped image (not fullframe) and I find that PT Gui finds more stitch points this way.
Kirk
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Ken Warner
Posts: 367
Location: Mammoth Lakes, United States
Registered: 14 Aug 2004
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Re: New pano with my new Sigma 8mm 3.5
Posted: 26 Nov 2007 at 1:43 GMT
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Wow, that't really nice. The image is so crisp. I expected the airplanes and clouds to move. I saw no CA and almost no fringing on high contrast areas. What a nice lens.
And DelaVR is just head and shoulders over any other viewer I've seen. That little trick with the magnifier popping up when the scroll wheel is pushed. Nice! I might steal that...
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Oender
Posts: 172
Location: Mexico City, Mexico
Registered: 16 Apr 2007
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Re: New pano with my new Sigma 8mm 3.5
Posted: 26 Nov 2007 at 5:07 GMT
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DorinDXN said: Hi!
this is also my first pano made with PTGui
Nice pano Dorin! Thanks 4 share! keep posting more. Welcome to ptgui 
 Oender
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John Houghton
Posts: 2308
Location: Hitchin, United Kingdom
Registered: 17 Jan 2005
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Re: New pano with my new Sigma 8mm 3.5
Posted: 26 Nov 2007 at 10:19 GMT
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Very nice overall, Dorin. To be picky, the nadir isn't quite perfect though. There are some broken lines and there's clear evidence of cloning too, which I wouldn't have expected since you took a down shot - or was that taken on the tripod?
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DorinDXN
Posts: 1692
Location: Timisoara, Romania
Registered: 14 Nov 2006
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Re: New pano with my new Sigma 8mm 3.5
Posted: 26 Nov 2007 at 12:35 GMT
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Thank you for replies.
bigwade said: Looks good !
why 6 around ? 4 will do ! (+ 1T/B)
A bit higher viewpoint would make the pano more interesting
Yes 4 certainly was enough do even without extra 1T/B the tripod was clonned out anyway.
The viewpoint was preciselly determined from a good reason, see extra details bellow.
spyboy said: I have the 350D/Rebel XT & the Sigma 8mm f/3.5 fisheye as well.
I shoot 6 around (60 degrees) instead of 4. Part of this is because of the 1.6 cropped image (not fullframe) and I find that PT Gui finds more stitch points this way.
Even on 1.6 crop can be done with 4 shoots with panohead tilted up at 5 degrees, of course, the lenshoodlike ring from front must be removed to have 180 degrees covered up-down, camera in portrait mode.
Ken Warner said: Wow, that't really nice. The image is so crisp. I expected the airplanes and clouds to move. I saw no CA and almost no fringing on high contrast areas. What a nice lens
the correction of CA was done in DPP 3.2 as described here
www.panoguide.com/forums/tipsntricks/3943/
I think, it could be done better, once I'll have more experience with this.
Oender said:
Nice pano Dorin! Thanks 4 share! keep posting more. Welcome to ptgui
Thank you Oender 
John Houghton said: Very nice overall, Dorin. To be picky, the nadir isn't quite perfect though. There are some broken lines and there's clear evidence of cloning too, which I wouldn't have expected since you took a down shot - or was that taken on the tripod?
You're absolutely right, this pano has a story, the nadir shot was from tripod becouse this pano suppose to be the first level from a multi details level pano the outer two rings was taken with a rectiliniar lens at 18mm and 55mm without changing the viewpoint. so the patching of the nadir was ment to be done from rectiliniar shoot.
first level was a complete sphere with FE, the second level has covered all the buildings there at 18mm (29mm FF equiv) the third was directed to shops and church at 55mm (88mm FF equiv).
After a weekend of testing I postponed the release of my multi level detail pano and I made this pano "beauty" and publish it using only FE shoots, the tripod and vertical arm of NN3 was quickly removed by clonning, No doubt I could done a better job on that, thanks for pointing that out.
Dorin
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bigwade
Posts: 270
Location: Netherlands
Registered: 19 Oct 2005
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Re: New pano with my new Sigma 8mm 3.5
Posted: 26 Nov 2007 at 17:46 GMT
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Hey Dorin,
don't meen pole, but 1,5m or 1,9 meters does matter and you could still do the same 3 resolution trick.
Have Fun.
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Mark Schuster
Posts: 730
Location: Welwyn Garden City, United Kingdom
Registered: 25 Jan 2006
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Re: New pano with my new Sigma 8mm 3.5
Posted: 26 Nov 2007 at 21:49 GMT
updated: 26 Nov 2007 at 22:07 GMT
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Hi Dorin,
Congratulations for your new equipment. Nice panorama. Nice juxtaposition of buildings from different eras. Block of flats (1950s?), church, but is it pre- or post- Soviet? - Are the orange and yellow buildings - old, or modern replicas? - The white building at the end of the boulevard looks distinctly Soviet era. As for the sculpture? Tell us what that represents. That’s what panoramas are for. Gets our imagination going.
But now a criticism. The entry point of your scene has the buildings leaning over a bit. Please keep them vertical, or alternatively leaning over a lot so it looks intentional, not in error.
Nice stuff though.
Mark
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DorinDXN
Posts: 1692
Location: Timisoara, Romania
Registered: 14 Nov 2006
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Re: New pano with my new Sigma 8mm 3.5
Posted: 27 Nov 2007 at 11:53 GMT
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bigwade said: don't meen pole, but 1,5m or 1,9 meters does matter and you could still do the same 3 resolution trick.
Hi Frank
For this test I was suppose to be able to look through camera viewfinder for zoom at 18mm and 55mm high resolution levels and to look also at NN3 degrees marks on lower rotator as I don't used detent system on NN3.
Although will be nice for me to be able to do both with camera at 1,9 metters I simply can't.
Dorin
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DorinDXN
Posts: 1692
Location: Timisoara, Romania
Registered: 14 Nov 2006
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Re: New pano with my new Sigma 8mm 3.5
Posted: 27 Nov 2007 at 13:07 GMT
updated: 27 Nov 2007 at 13:20 GMT
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Mark Schuster said: Nice juxtaposition of buildings from different eras. Block of flats (1950s?), church, but is it pre- or post- Soviet? - Are the orange and yellow buildings - old, or modern replicas? - The white building at the end of the boulevard looks distinctly Soviet era. As for the sculpture? Tell us what that represents. That’s what panoramas are for. Gets our imagination going.
As you look at the church which was build around 1937-1940 en.wikipedia.org/wiki/Timi%C5%9Foara_Orthodox_Cat...
the buildings at the right are from 1910-1915
the buildings in the left maybe around 1960
The white building at the end of the boulevard is the oldest there around 1870
The sculpture is called Crucifixion the work of
PAUL NEAGU (b. 1938 Bucuresti/Romania - d. 2004 London/UK)
www.paulneaguhyphen.com/
You might find some of his art work near you, I guess.
I contacted that website in order to donate this pano to the website if them are interested.
This place was also the very place where the last era, back in 1989 was meant to change.
The initial tilt of the camera in this pano is indeed set at +5.00 degrees not by error.
Dorin
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Mark Schuster
Posts: 730
Location: Welwyn Garden City, United Kingdom
Registered: 25 Jan 2006
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Re: New pano with my new Sigma 8mm 3.5
Posted: 27 Nov 2007 at 19:57 GMT
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Dorin,
I hope you didn't think I was citisizing your composition, or town. I found it very interesting.
As I have said before, I would love to visit your country sometime. In the meantime, I've got your panoramas.
BUT +5%. Yes many of us use this technique with fisheye lenses to avoid making a separate zenith. I do! But then I correct the tilt in PTGui. Here is one.
panoradiant.co.uk/x/kitchenqtvr.html
Just 6 around in a confined space. No up. No down. 7.5mm fisheye on a 300D. Close to your 8mm on 350D (I think).
Come on Maistro. You are a far better technician than me, so why am I telling you all this? Please straighten up your buildings, just for me, and I will try to avoid clones in future.
Kind regards,
Mark
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DorinDXN
Posts: 1692
Location: Timisoara, Romania
Registered: 14 Nov 2006
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Re: New pano with my new Sigma 8mm 3.5
Posted: 27 Nov 2007 at 20:11 GMT
updated: 27 Nov 2007 at 20:12 GMT
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Mark Schuster said: Please straighten up your buildings, just for me, and I will try to avoid clones in future.
Kind regards,
Done it, now the start tilt is 0, we have a deal 
Note: I might accept clones if them are at that yaw sepparation to be impossible to see simultaneosly on the screen.
thanks,
Dorin
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Mark Schuster
Posts: 730
Location: Welwyn Garden City, United Kingdom
Registered: 25 Jan 2006
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Re: New pano with my new Sigma 8mm 3.5
Posted: 27 Nov 2007 at 22:36 GMT
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Thanks, Dorin.
The church is incredible. I'm far from devout but I do appreciate great art. Could we have some more? Closer in, if possible and a bit off to the side. What about an interior? That really must be something.
Mark
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DorinDXN
Posts: 1692
Location: Timisoara, Romania
Registered: 14 Nov 2006
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Re: New pano with my new Sigma 8mm 3.5
Posted: 28 Nov 2007 at 11:06 GMT
updated: 28 Nov 2007 at 11:14 GMT
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Mark Schuster said: The church is incredible. I'm far from devout but I do appreciate great art. Could we have some more? Closer in, if possible and a bit off to the side. What about an interior? That really must be something.
A virtual tour of the Timisoara Orthodox Cathedral is something I whish to do in the future, when I'll be good/skilled enough to do that.
Until then I can let you to zoom in much more toward the Cathedral, only there
Works only in DevalVR
dorin.devalvr.com/hires/Pano.html
A note, for this pano, two lenses were used, you can see the clock moving reflecting those minutes which took me to change the lens, to wait for that green big car to pass near me, and make another two sets of high resolution images from which I used for this sample only one the first near set
Dorin
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