I could really use some help on the one.  I am a computer person first and photographer second.  Presently I take all the photos for the real estate agency that I work for; I even use the 0-360 for home tours.  Now our office would like better quality tours and to create more tours of their commercial spaces...something that the one shot is not really good for.  Anyway, I have been browsing the recommended equipment and the photography techniques.  It seems to be a bit over my head right now but I think I could pick it up.  My question is, we are going with the Canon 20d system with the Sigma F/3.5 (as recommended on the site)...now, which type of shots should I be looking at...drum, circular?  Their "Panorama Photography" link is a bit confusing and I have not been able to find any information by doing searches in the forum.  Thanks for any help.

We have the Canon 20d and the Sigma 4 (similar to 3.5).  Because of the Canon's CMOS sensor 1.6 crop factor,   this means that you should take 4 images at 90 degrees and optional + 1 T (top or up shot). 

You do not really need to take the Top image if you tilt your lens up a few degrees - that should make the 4 images converge better at the top.  You will see a small merge point at the top but that is ok for some folks.

Who is "Their link" ?  Please try this link for more 20d and Sigma panorama photography information.  There are a number of downloadable .pdf information files here.

http://www.360texas.com/services/software/agnos/index.htm

Canon 20D with Sigma 8mm = "Drum" images stitching with Panoweaver 4.0 is not a problem. (4 Shots at 90 degrees Minimum) 4+T and 4+TB do-able with correct panohead. I suggest www.agnos.com MrotatorTCPS or www.nodalninja.com Nodal Ninja 3. Tell 'em Smooth sent you!

Regards, Smooth

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