BirdForum is the net's largest birding community dedicated to wild birds and birding, and is absolutely FREE!

Register for an account to take part in lively discussions in the forum, post your pictures in the gallery and more.

Reply to thread

Message: <blockquote data-quote="rezMole" data-source="post: 1209344" data-attributes="member: 18597">I used a Tamron 200-500mm lens for ages, and loved it. However, I always wanted a prime, so ended up getting a Sigma 500mm (no way could I afford a Nikon 500mm). I thought I'd keep the Tamron because it was lighter and therefore better as a walkabout lens. However, after 6 months, I had never used the Tamron, so I have now sold it.The Tamron was pretty rubbish with the Kenko converter, whaereas the Sigma prime and converter produces very good pictures with little if any loss of quality - even though I have to focus manually.</blockquote>