Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: Not bad...
Review: Although the manual says it's only for Tamron lenses, works with my Nikon Lens... Ok, here's the straight dope: Slow focusing! In many cases, you will need to switch to manual focus because of the drop in f-stop. Remember, you lose 2 f-stops with this converter. What else can I say... Simple to use. You'll probably need to use a tripod when using this teleconverter with anything over 150mm. Well made. Seems to have quality glass. In the end, all I can say is it's not a $10,000 lens so don't expect perfection. However for an amateur or serious hobbyist and even semi-pro and for some pros, it'll fit the bill.
