Robert Tilt
Active member
Thanks to every one who helped me to decide that the Canon lens was the best choice for me!
Next question - in view of the cost savings - does anyone know if the Kenco Teleplus 2x converter is worth using - I already have one which is actualy useless with the sigma 170-500 but that is probably down to the lens (and lack of solid support)?
Will the IS still work - or must I buy canon converters?
On a similar subject - I want to get an extension tube for dragonflies etc - what length and must it be Canon to maintain full IS etc?
Thanks! :clap:
Next question - in view of the cost savings - does anyone know if the Kenco Teleplus 2x converter is worth using - I already have one which is actualy useless with the sigma 170-500 but that is probably down to the lens (and lack of solid support)?
Will the IS still work - or must I buy canon converters?
On a similar subject - I want to get an extension tube for dragonflies etc - what length and must it be Canon to maintain full IS etc?
Thanks! :clap: