doesn´t work with ifeature5

Can you elaborate on what the problem is?

If you’re trying to get the images to open in lightbox, the plugin disables lightbox effects by default, since it’s assumed most people will be linking to pages or other sites. To enable it, you can either change the setting at the image level (under where you enter the custom url) or on the whole gallery at once by adding ‘preserve_click_events=”true”‘ to your [gallery] shortcode.