panorama software,virtual tour software
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Joined: 2004-03-10
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2004-03-16
#1

mRotatorB - strange behavior

Hi!

When I set up the levelling bubble properly and move the camera 180deg the bubble is out of range.

Set up: http://www.su-n.de/images/mrotator/IMG_0103.JPG
Correct: http://www.su-n.de/images/mrotator/IMG_0104.JPG
180deg moved: http://www.su-n.de/images/mrotator/IMG_0107.JPG

is there something wrong with my setup? Should I take pics when the bubble is out of the middle or should I re-adjust the bubble?

Greetings,

Sven


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Joined: 2003-01-04
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2004-03-16
#2

I think Agnos could help you with that one.

Try to adjust the bubble on the second shot. If you get better stitching results there's your answer. Kaidan sells the quick tilt leveler for this.

Also, there's a couple of other people here using the mrototor and i don't remember them adjusting it.


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2004-03-17
#3

It is not uncommon for the bubble to be out on your second or third shot it is very common on a un-level surface like a hill etc.

I do NOT recommend you re-levelling (Micro Levelling) on each shot as the results are often poor. The Kaidan tilt leveller is a good investment (I use one and fully recommend it) but is not going to stop the movement of the spirit level bubble from one position to the next. Be careful that the weight of your camera and lens is not (bending/warping) your tripod. A heavy duty quality tripod is a must.

After looking at your photo's your tripod looks to be of a high standard. Also the bubble movement between position one and two is not really worth worrying about in my personal opinion!

Regards, Smooth


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2004-03-26
#4
It does appear as if the weight of the camera, considering the overall length of the set-up, is causing this to occur. The question is... are ur stiches coming out ok or is there a problem with them??
If I only had an hour to chop down a tree... I'd spend 45 mins sharpening the axe.
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2004-03-26
#5

Well, after I re-adjusted the cam horizontally 3 shot panos are stitched excellent!
Setting the levelling for the 1st shot correctly and don't care about the other 2 shots. That's it.

Cheers,

Sven =)


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Joined: 2002-10-04
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2004-03-26
#6

Sven,

What was your method for determining that it was a horizontal problem, and of course your method to correct it?

Based on the advice of others here using the Mrotator, I placed my order a couple of days ago.  I know it will take a couple of weeks to get it so I'd like to brain up on set up issues before it shows up.

Thanks!

Bo


Bo
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2004-03-26
#7

It took 2 1/2 weeks for me! So be prepared ;-)

Well, I noticed errors while stitching. The pics simply didn't matched with auto-stitching.

My trick to correct horizontal disalignment was simply to add something with a correct 90 deg angle to the mrotator. then this line has to fit with the bottom of your cam. it's a little bit tricky, but when you got the real position, be sure to screw on the screw hard :)

http://www.su-n.de/images/90deg.jpg

I hope you understand my painting... Try that the long lines match when moving your head back and forward and the paper has to be attached correctly at the site at the rotator that you've exactly 90deg.

Cheers,

Sven =)


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2004-03-26
#8
Sven, your "painting" (picture) is easy to understand, but your method may not work for everyone: it presupposes that the ccd chip inside the camera is perfectly level, which is not always the case. If your method worked for you, that's wonderful, your problems are solved, But for others (like me) additional adjustment was necessary to get a perfectly horizontally level...
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2004-03-27
#9

Ah, yes. I remember about this issue. How did you solved this problem?
As I said, only my 3 shot panos match good. 2 shot panos don't. Maybe I've to readjust, too??

Greetings,

Sven


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2004-03-27
#10

OK!

Today I bought a very long water-level unit and set up my tripod/cam to the correct levelling using the bubble in the mRotator. As you see, I might need to re-adjust the cam.
http://www.su-n.de/images/hori.jpg

Cheers,

Sven =)


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2004-03-27
#11

Hi all,

Sven I own the equipment you do (that is Nikon Coolpix 5700, FC-E9, MRotator by Agnos.)

The rotator has been in my hands for about 5 days now so I cannot recommend/suggest anything.

  • I called Agnos and they recommended to set up the right level on the first shot only. According to them it is matter of cents of millimiters which makes the bubble go out of range.
  • Maybe it is because my standard as not as high as yours but I really cannot complain with regards to the stitches...

Although I have not pay much attention to the horizontal alignment, photos are most of the time stitching just perfect by using the automatic attachment in Panoweaver.

Sometimes yes, I need to manually amend the attachments but it is due to very small details....  (and the manual stitch is another matter I need to look into....).

For instance, let's look at the following pic. Is it bad?  I am not quite sure... I can see some stictch issues... (se red squares) but hey in the last 2 months I had been trying sticthing pics made without rotator and this seems a dream to me!!

Please tell me what's wrong if you see any .

http://www.tamtorino.it/Tests/RGConRotator1s.JPG

 

  • Having said that I did wonder at some point about levelling the camera. What I did was to use a bubble level  slotted into the camera. I set up the system and made sure the Rotator level was aligned:

http://www.tamtorino.it/Tests/3Ss.jpg

Then I looked at the bubble level in the camera.I believe the second bubble should give me the horizontal alignment (always relative to the ground and the tripod, of course). For instance the following pic shows the camera before being adjusted (the second bubble lev is out so to me the camera need to be adjusted).

http://www.tamtorino.it/Tests/4s.jpg

  • One more thing I would like to ask: which focal lenght can you achieve with your 5700? As for me I cannot go any bigger the 11.6 mm (but usually I use 10.7 mm)

thanks dlot