Not just an issue with Jessops 2x converter; the problems with AF applies to all Teleconverters but whether they work with the lens AF depends on the full-open aperture of the lens and the particular make and model of camera body. Some lenses/bodies will still AF but only in live-view if they have that feature.

Problematic for sure and worth trying a budget make (e.g. Jessops/Kenko) to see whether or not you get on with it before deciding to splash-out on a more expensive model.

[code]

function add_class_attachment_link($html){
$postid = get_the_ID();
$html = str_replace('<a','<a rel="lightbox"',$html);
return $html;
}
add_filter('wp_get_attachment_link','add_class_attachment_link',10,1);

[/code]

Tested with lightbox plus plugin.

thanks

Could somone or Phil insert Next & Previous buttons to PHP? … or tell me how to do it?

Thanks.