Originally posted by Ari All: Thank you for your very good advice! I have decided to go with the Manfrotto geared head - I want to get these jobs done as quickly as possible (there are a lot to do) and I think the geared head will help speed everything up.
Might be a bit late to help you out, it seems, but if anyone else looks up this thread...
Just get the Nodal Ninja 3.
It's better built, smaller, lighter, just as flexible (you "set it and forget it" - gears? WTF for?) and most importantly for you... it is far less expensive for getting into 360 panos.
Spend your money on a good tripod or the 10-17mm fisheye, if you haven't already got one.
That said, I've also owned and used the Manfrotto 303SPH, a 360 Precision (hella $), Agnos Mrotator, a home-built head, as well as a goofy-cool Novoflex panohead that I borrowed from a friend (also hella $) and some stuff cobbled from macro-rails and large-format camera gear.
Why so many panoheads? After 9 years of doing 360 panos, you get like this.
My current setup is a Nodal Ninja 5 (the larger one for cameras with grips) and their RD-16 rotator. That rotator is pretty much a clone of the Manfrotto 300 rotator base, but it feels more "positive." I also have the Nodal Ninja 3 as a "backup" if I take the battery grip off my K20D, or want to loan it out to someone else. Nodal Ninjas are very precisely machined from aluminum, and can take a lot of abuse and weight.
But why not the trusted and respected brand of Manfrotto? Simple: the 303SPH is not a purpose-built device, rather a collection of mounting plates and macro rails with a rather sloppy rotator on the bottom.
The Manfrotto also weighs an f-ing ton, and barely collapses to the size of a workman's lunchbox (which could hold 3 Nodal Ninja 3's). Heck, almost all of the other panoheads I've used easily trump the Manfrotto, with the exception of my wooden home-built head... but that's because I suck at woodworking.
Finally, if you intend on doing a lot of these 360s, or even just a few, the "gearing" won't help you for anything but the initial setup of finding the "no parallax/ nodal point." Once you've found it (with any head) you tighten the screws and
never move that rail again... (well, unless you have lots of different lenses to use, which isn't for 360s, but high-res "mosaics" and even then most folks have a preferred tele for that!)
Oh yeah, the Nodal Ninja also includes "rail stops" which allow you to disassemble the whole head and never lose that "point" when you put it together again and mount your camera.
But then again, don't take my word for it alone... read this guy's take on both (from a few years ago):
Rosauro Photography - 303SPH VR Head Review, Panoramas, Toronto Virtual Tour Rosauro Photography - NN3 VR Head Review, Panoramas, Toronto Virtual Tour, 360° Panoramic Views
Finally, the same guy has a good overview of the process (for a Nikon guy...):
Rosauro Photography - Intro To Panoramas, 360° Panoramic Views, VR Head Reviews