hi

I've got this slight stitch error which i know is a slight misalignment. The kit is a D70 with Sigma 8mm. As the fault is much more pronounced on the top and bottom lines, can someone give me any pointers as to which way to adjust?  Its using an Agnos MrotatorT bracket and I've already lined up the horizontal adjustment to minimise the jutting effect on the base of the tripod. 

Also - would the camera have to be exactly horizontal as the bracket doesn't lock in very well occasionally and I wondered if it wasn't bang on whether that was causing some problems? A spirit level on the camera shows its pretty good...

Cheers

Andy

PS - Cheers to Smooth for giving me such good pointers last question - I'm a lot closer now, thank you!

Hi, there

When photograph, keep the camera and lens stable in horizontal level. Otherwise, it will be difficult to stitch perfectly. Otherwise, please try to correct the image in Photoshop.

As many members have said in previous posts, align the first shot but not the following shots.

Is the misalignement only at the bottom or does it follow up all the way through?

No - its only at the bottom. Very occasionally it appears to be spot on, but most of the time there are slight errors like this. Most of the time onto grass gravel, carpet etc it doesn't matter, but something like these tiles will show it up.  I know I'm right on the edge of the lens though!

I find it very difficult to get the D70 itself exaclty level - I can level the tripod easily, but there is some slack in the Agnos bracket in the horizontal position and the camera is heavy so sometimes sags .... I've not found a good place to put a spirit level on it yet?

Andy

Quote: Originally posted by andy05 on January-12-2006

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 I've not found a good place to put a spirit level on it yet?

Andy

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Hey Andy,
Try a hot-shoe level works great on my canon and should also work fine on your nikon.  Hope this helps you out.

Pixel

Hi Friends,

I have the exact same problem described as above. The error only happens at the very bottom and at the very top.

I use a tripod leveler and a remote. Do you think this is a nodal point issue?

General Lee

I too had some stitch errors that I can not post at this time to view for I am at work away from my computer.  However, 360 Dave and I talked about these issues on another thread.  He gave me an idea of using the matching points to see if it would correct.  I have not yet done this but will post results here when achieved.  Just thought I would share the idea.

Regards, Pixel

I have tried matching points. I have tried setting 6 and 10 points.

I have also tried setting 6 points and then setting 6 different points on the same pano and still get the error.

Sometimes it is really bad. At other times it is not. I am just not sure what is causing this. Mabey my rotator needs maintenance, or mabey  my tripod is wearing out.

But sometning is causing these paralax errors.

General Lee

With out seeing the affected images it is really hard to determine the issue.

First make sure you are stitching Drum or Full Frame (there is a personal joke here). 

I think the reason PW 4 has X and y dimension adjustments is because sometimes inside the camera the SENSOR is not perfectly aligned with the perpendicular lens axis.  Means the sensor is off center from the center of the lens.  Even different Canon 20d camera sensors can be off set by a few microns.

PW4 allows you to adjust the center of the sensor/ image with the lens as well as.. making cropping adjustments to remove the black background and light fall off purple fringe the at  the lens edge rim.  Thats where the glass meets the metal lens housing.

If Drum.. check the image "sensor" alignment X and Y and R for radius by trying to make it larger or smaller radius.