In my opinion, a light tent is a tool that is really not necessay unless you do a lot of photography outdoors and are plaque by breezes or very bright light. I have been photographing insects and flowers for a few years and I find that portable reflectors, use of ND filters and paying attention to F-stops and lighting angles you can do quite well. I donot have much experience photographing orchids or flowers inside. Whether the tent is of any important use I don't know. I think before I purchased one I would make a homemade version and try it out. Light tents are discussed in several nature and macro photography books. In addition there is information on the net.
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