On 4 Feb 2006 at 17:42, Jan van Wijk wrote: > Quality seems quite good, can hardly see a difference between > this 1.7 one and the two 1.4x or 2x L converters when used on > the 300mm (and 510mm f/5 on the *istD is good for wildlife :-)
>From a set of semi-formal tests using the AF1.7, 1.4X-L and 2-XL convertors my 1.7 appeared to perform the best. It offered optimum performance at wider apertures than the X-L convertors on the four 200mm + lenses that I tested them with. Rob Studdert HURSTVILLE AUSTRALIA Tel +61-2-9554-4110 UTC(GMT) +10 Hours [EMAIL PROTECTED] http://members.ozemail.com.au/~distudio/publications/ Pentax user since 1986, PDMLer since 1998