I have several questions about the type of equipment I would need for future development and expansion of activity for product photography. I have a Canon 20D with a 17-85mm f/ 4-5.6 USM IS <br> My general question is what type of lens is suitable for product photography?<br> What specification should it have? For studio shooting (not large format camera).<br> My idea of product photography is relatively small items, such as wall clock, watches, food etc. <br> I need to know, for instance, what lens would suit light tents, should it be a wide lens, macro or..? what kind and...<br><br> If anyone could also advise on the lighting set power interms of w/s or joule, I would appreciate that.