For the best results you need good lighting. External flash units (or strong halogen lights) in connection with a lightent (or solid background) are a must for achieving best results.
Depending on your budget, you can buy (an expensive) motorized turntable that connects with your camera and computer and does the rotation, the shutter release and the file download automatically.
If you are low on budget, or just want to try out the 360° product photography, you can buy a lazy suzan turntable and cover it with white sheet of paper. This is what I have actually done for the shots of the Deuter(TM) backpack:
Lighting & scene setup (solid color background) are more important than a camera. Nowadays, even 5 years old digital cameras have enough megapixels for a 360° product view for your website. The only important thing is that you can lock the aperture and shutter speed and manual focus settings. You want to keep these settings the same for all shots.
You’ve put already great effort and time to shoot the product photos. Just one additional step is necessary to make them look perfect – cut out the background. This step is not necessary if your lightning & background setup was perfect and the background is good the way it is.
You can outsource this task to online services ( like clippingmagic.com or others).
Now you can use the photos and import them into the 3DRT Setup Utility and export a 360° product view for your website!
Also don’t forget to backup your photos 🙂