Amit Kumar Singh

wpoets

Aim of this plugin was to create a simple lightbox, to be used with the images on the post, it helps you add your images as you do now, it will take care of rest of the things. It works transparently without adding any extra work on your part.
For more information check out the <a href="http://amiworks.co.in/talk/akwplightbox/" title="akWPLightbox : simple lightbox for wordpress" rel="nofollow ugc">plugin homepage</a>.
Tip: To keep track of this plugin’s evolution and features, you are advised to <a href="" title="Grab Amiworks RSS Feed" rel="nofollow ugc">subscribe to the author’s feed</a>

akWPLightbox

It makes all the image in a post that are linked to larger images, to open with lightbox effect.

dath

With the SimpleGal plugin you can simply create galleries. 
Just upload your images, add the SimpleGal Shortcode to your posts or pages and the gallery will appear. 
For an optimal gallery view you should install a lightbox plugin.
Mit dem SimpleGal Plugin kannst du ganz einfach Galerien erstellen. 
Einfach deine Bilder hochladen, den SimpleGal Shortcode deinem Artikel oder deiner Seite hinzufügen und schon ist deine Galerie fertig. 
Für eine optimale Galerie-Darstellung solltest du ein Lightbox-Plugin installieren.
Available languages: English and German

SimpleGal

Create an Image-Gallery in 5 simple Steps. Just add the shortcode to your posts.

akWPLightbox vs SimpleGal