lens

[cruso]

Hi my wife is after this lens Canon EF 70-300 f/4-5.6L IS USM Lens dose anyone know if a 1.4 converter work on this lens ?

 

[lostsoulal2]

I have the Canon EF 70-300 L f4-f5.6 IS USM lens and it works well in combination with the Kenko 1.4 Pro 300 DGX (blue spot) teleconverter on my 7D - The Canon 1.4 II extender is not compatible because of the physical lens protrusion into the end mount, but will operate in the limited range of 250-300mm.

 

[cruso]

thanks for the reply lostsoulal2 so the kenko converter will go throught the full range then if I understand right then? and the canon dose not

 

[lostsoulal2]

thanks for the reply lostsoulal2 so the kenko converter will go throught the full range then if I understand right then? and the canon dose not

That is my experience using both with the 7D - the Canon only operates in the limited range 250-300mm, whereas the Kenko will cover the full range, but as you would expect in poor light/lack of contrast detail it hunts a little at the extreme end of the focal range (~275mm > @ F/8), but overall the IQ is very good.

 

[cruso]

thanks for the help