| Re: Which Lens - Advice needed please!
As others have said the choice is bewildering and I can only speak of the lenses I have experience of. The Sigma 50-500mm is a very versatile lens capable of excellent shots in the right hands. It does take a bit of getting used to but as Graham, (glsammy) mentioned it is an excellent lens for dragonflies and butterflies as well as birds.
If you aren't bothered about a zoom I would highly recommend the Canon 400mm f5.6L USM lens. It's a prime lens or in other words the best quality glass and it's as sharp as they come.
Roger |