panorama software,virtual tour software
Alternate Text
Joined: 2009-08-30
Send Msg:
Posts: 64
2009-09-12
#1

find No Parallax Point

hi, does anybody know how can I find the "No Parallax Point" using a Nodal Ninja 180 .?

 

P.S.     Hello, Smooth : I wont delete posts. I promess

 


Regards, Sal
Alternate Text
Joined: 2008-11-08
Send Msg:
Posts: 45
2009-09-12
#2
The lens and the camera body you use, could help
Mac OS X Tiger Or Leopard - VMWare fusion 2.05
Alternate Text
Forum Moderator
Joined: 2002-11-23
Send Msg:
Posts: 5438
2009-09-13
#3
This has been covered many times on this and various other forums.

Here is a link to my method.

The Grid is another method.

John's window method.

Regards, Smooth
Alternate Text
Joined: 2009-08-30
Send Msg:
Posts: 64
2009-10-01
#4

hi Smooth:

I follow exactly the instructions in this website to found the NPP, I think I found it.

http://www.red-door.co.uk/pages/productpages/nodal-ninja-parallax-nodal-point.html

And then...

I am showing you some pics of my NN 180 & lens, Dont know if you can notice if it looks ok. Please tell me if it looks ok...

http://www.panoramicosespectaculares.com/nn180.htm


Regards, Sal
Alternate Text
Joined: 2009-08-30
Send Msg:
Posts: 64
2009-10-01
#5

seems that PTGui is blending better

Could you check me this sample please, hope you tell me that I found the NPP, or maybe I am closer

http://www.panoramicosespectaculares.com/im.htm


Regards, Sal
Alternate Text
Forum Moderator
Joined: 2002-11-23
Send Msg:
Posts: 5438
2009-10-02
#6
Sal,

Your images were NOT shot at 120 degree intervals but none the less I stitched them up.

Next time be sure to shoot at position "0" position "120" and position "240" with the small blue thumb screw in the 120 degree hole the click stops will guide you.

Your panorama (right click "save as") and then view locally.

The NPP is OK, whether it is perfect is hard to say with these tiny, unevenly spaced images. But I would think it's close enough.

Regards, Smooth
Alternate Text
Joined: 2009-08-30
Send Msg:
Posts: 64
2009-10-02
#7

ok thanks.

Why sometimes the rotator is in the "0" position to start, and why sometimes is a little moved to left    ..I.E. ? How important is this?? How to set it always in "0" to start ?

Do you mean that the NPP could be ok, in what of the images I send you?
is it here ? : http://www.panoramicosespectaculares.com/nn180.htm (I ask you this just to be sure where to set the T-adapter)

John Houghton post me to save as .PSD & Individual layers to campare the poles to see if one is moved (What are the poles ? ) are they the side of the images, where they blend, o where we should set control points.


Regards, Sal
Alternate Text
Forum Moderator
Joined: 2002-11-23
Send Msg:
Posts: 5438
2009-10-02
#8


Sal,

It is hard (no impossible) to tell by looking at a photograph to see if you have found the correct NPP. What the photo does tell me is that you have now correctly assembled all of the pieces.

To set the T20 correctly means that you have the "exact" centre of the lens in line with the exact centerline of the tripod. To get it exact will take more than a simple look with your eyes.

The back and forth on the NN180 can be with 10mm of "exact" and still yield acceptable NPP results. Though you want to be as close as you can get. Left to right is just as important as back and forth and there is an argument to say even more so!

What John is saying is beyond your capabilities at this stage. The "poles" he is referring to are the poles shown in the NPP movie you posted a link to. That method is only a rough and ready solution and not anywhere near as exacting as the 3 I listed above. Still, it is good enough to get you started. I don't see any reason for you "at this stage" to worry about saving to *.psd.

"0" position is always "0", that NN180 is very accurate and so long as the small blue thumb screw is tight the same position should be obtained everytime. If you are talking "micro" tenths of a millimeter then this is nothing to worry about at all.

You need to sit back and work you way through things slowly until you understand the processes (1 at a time).

....and you thought shooting panoramas was easy!
There is a learning curve that never stops.

Regards, Smooth
Alternate Text
Joined: 2009-08-30
Send Msg:
Posts: 64
2009-10-02
#9

Hi Smooth

I think a made a better Panorama, tough is still not very aligned, it looks better than the others.

The question is the following:

At first I tried to blend it with PTGui, and this didnt blend anything, just as soon as click on "Align Images", it just showed one of the images on the Panorama Editor, "equirectangular" selection, (dont know why) if  at start the Camera / lens Parameter, shows:

Automatic

Lens Type: Circular

Hor Field Of View : !80

(So i got frustated again with PTGui) Then I went to Panoweaver, and this made me happy, because this blended the panorama, as I say, with a little misaligned, that I consider they re not problem, I can fix them.

Do you know why PTGui didnt blend it ok, and why Panoweaver, did ?

Are there any special settings for PTGui ?


Regards, Sal
Alternate Text
Forum Moderator
Joined: 2002-11-23
Send Msg:
Posts: 5438
2009-10-03
#10
Sal,

Both Panoweaver and PTGui are very capable of stitching your images. It would seem Panoweaver deals with them in an "automatic" way better than PTGui for you. Panoweaver GUI is far easier to use and understand IMHO.

A better understanding of each software package by learning it fully would help you stitch them no problem. In either case you would have to place manual control points to get a correct stitch.

Your lens works out to be 189.7 Circular on my last test with your images.

Regards, Smooth
Alternate Text
Joined: 2009-08-30
Send Msg:
Posts: 64
2009-10-04
#11

hello Smooth:

I really want to thank you, for all your help, that you have give to me. I am impress about the way you can manage everyting about the Pano business.

By the way, I think I will go with Panoweaver, I consider it easier for beginers, which I am. Later, I will try to study and go deep into PTGui, it is a great software also, but it requres more knowledge.

I think I already set my NPP, I will keep testing and testing, shooting panos.

this is what I am doing right now......

 

Thank you, Smooth for your patience, I ll be around this forum, reading

 


Regards, Sal