I've uploaded a folder called pano here..

http://idisk.mac.com/deepvisual-Public

ah so that's what it is...
bum.

Thanks anyway. I'll bodge these in photoshop and re-adjust the Nodal Ninja ready for next time.
I got the 4.5 to do ultrawide timelapse as I do a lot of work in planetariums... its great for that!

deepvisual wrote:

I've uploaded a folder called pano here..

http://idisk.mac.com/deepvisual-Public

You should only need to shoot 3-around, plus optional nadir or zenith, with the Sigma 4.5mm FE on a Nikon D300s.

There's something strange about your images; the FOV doesn't seem right somehow - the image circle is too small - for a Sigma 4.5mm FE on a Nikon D300s cropped 1.5x sensor.

Here's a sample image set shot 3-around, plus zenith, with that lens on a D300:
http://tinyurl.com/ydxqovk

I am seeing an image circle of approx. 2330 pixels - compared to a circle of approx. 1800 pixels from your images. And I'm not sure why this is. If this was Sigma 8mm f3.5 I'd suggest you had left part of the lens cap on the lens, but...

Update: and that is what is happening here I think. It seems the Sigma 4.5mm FE has a two-part lens cap like the Sigma 8mm f3.5 and you have not removed the second part of the lens cap and thus have limited the FOV.

I quote from this review:
http://dimagemaker.com/2008/07/11/sigma … ns-review/

"One trap to avoid is the lenscap: it is in two parts. I missed this the first time shooting and only realized when examining the images later. There is a normal lenscap but this attaches to what looks like a lens shade whose purpose is to keep the lenscap off the front element of the lens."

Another 3-around sample image set using the Sigma 4.5mm FE this time on a D80:
http://www.agnos.com/dati/download/samp … nevale.zip

.........
However you look at it, IMO the Sigma 4.5mm FE is not a great choice for panos, you're getting a rather low res. spherical pano from relatively a high end DSLR with this lens.

For most purposes the Sigma 8mm f3.5 FE, or the Nikkor 10.5mm FE, or the Samyang 8mm FE are all better choices.

Last edited by mediavets (2010-03-15 19:16:42)

That is probably the most EPIC FAIL I've seen reported on those forums

I'm quite happy about it.
proves I'm human after all..

my worst ever fail was sitting down in the middle front row seat of the london Palladium during rehearsals.
They hadn't told me all the seats had been taken out and then replaced and that none of them were bolted down - and of course theatre seats are all joined together in rows
So the whole front row fell over
which knocked over the 2nd row
etc etc.

took out over 300 seats..

but hey, two dumb ass mistakes in a 25 year career.. I can live with that.

@deepvisual

... you have my deepest compassion
Nevertheless.... Sigma is special with their UWA -Lenses . They all suffer the same illness: There is a hood over the dedicated hood

I made this mistake too... only once, but yet.

Greetings
Georg

PS: I´d like to see your picture taken correctly.  Looks fairly pretty to me....

Same thing on the Sigma 12-24mm.  It makes sense here-if you're shooting at the telephoto end, you can use an 82mm filter.

Even if you know the lenscap has two parts, its easy to forget it, and not take the second part off.

gkaefer wrote:

did never see a  "Sigma 4.5mm FE". One question - because of lack of imagination:
what are the reasons for having this split model of lenscab?
does someone can contribute an image ... ?

;-)
Georg

Sigma 8mm FE but same style I guess:

Last edited by mediavets (2010-03-17 15:32:00)

klausesser wrote:

mediavets wrote:

gkaefer wrote:

did never see a  "Sigma 4.5mm FE". One question - because of lack of imagination:
what are the reasons for having this split model of lenscab?
does someone can contribute an image ... ?

;-)
Georg

Sigma 8mm FE but same style I guess:

?? I don´t see any difference with the cap. . . .

best, Klaus

;-) it was written "two-part lens cap" - the image shows me one lens cap and one glare whatever...
Georg

gkaefer wrote:

;-) it was written "two-part lens cap" - the image shows me one lens cap and one glare whatever...
Georg

It's a two part lens cap you have to have the ring element on the lens to attach the other part.

I just pull off/push on the whole thing now. But one's first thought is just to remove the circular 'cap', and then you'll wonder why the image FOV is not as large as you expected!

deepvisual wrote:

as requested, more information about the panorama:

http://www.youtube.com/watch?v=ZLL8VG5ON_E

http://www.absolutehollywood.com/strato … -dome.html

Hi!

You should review the size. The pano loads far too log (i have a 16MB cable) - despite of a quite low resolution. And i would alter the rotation speed: i find it´s too fast. Also you should limit the zoom-back range.
I guess you used the "embed all files" option - better don´t. Having the xml fiies extra you can control all these things.

You need the KRPano unlimited license.

best, Klaus

Last edited by klausesser (2010-03-19 01:13:00)