How do we caliberate a shot in MM ?[#ff3800]

Hello nirakarsethy,
what exactly is your question about? Can you please explain more in detail?
Best regards
Tim

My problem is my footage slightly bends inwards due to the lens. So how can we caliberate the camera according to the lens. MM does it automaticly or We have to give any lens destortion

MM will automaticly estimate the lens distortion:  
Select the camera once you loaded your sequence. In the "project window", choose the "Camera" tab. Set the "Distortion" in the "Advanced" tab to "Constant initialized". MM wil estimate the olens distortion when solving the 3D track.
Best regards
Tim

@timefx
 
i found like automatic lens distortion calculation is going wrong.?. is it problem with my solve?. coz i tried the same footage with afx. both r giving diff values. also in afx my footage became 100% undistorted. . also i can't export undistorted footage from realviz. plz tell me the procedure  exporting undistorted image.

Dear Your,
 
different approaches may result in different values.
The same distortion values may give different results in different software, since it is a "mesure-less" value.
To undistort footage, I use "DistoIma.exe", a freeware DOS-command you can download by logging-in at the REALVIZ website http://sfx.realviz.com/downloads/patches/index.php > Patches and Upgrades > Freewares > DistoIma (last one down on the page)
 
Best regards
 
Tim