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Message: <blockquote data-quote="Vespobuteo" data-source="post: 3664472" data-attributes="member: 120830">1. A hybrid super-zoom might be a starting point. Lumix FZ300 is one alternative. In good light the quality is OK. Lens gives 600mm/f2.8 at max zoom (12x magnification) and it has 4k video which is nice. For documentation purposes it would work fine. Works for macro as well.  It's not too heavy either (640g) and the price (400€) is cheaper than any decent tele zoom lenses for the D3100.2. Another alternative is getting Nikon's 18-300mm/6.3 DX II or something similar. Not too heavy and large with a flexible zoom range. Price around 650€.3. Tamron's latest 100-400mm/6.3 is a bit more expensive but gives more reach. Price about 800-900€. Weight is around 1,1 kg so it will feel rather heavy and unbalanced on the D3100.</blockquote>