Thinking @ Speed of Light

I recently bought a a Lens Reversal Ring   for my DSLR. It is a pretty nifty gadget available at dirt cheap prices. The way it works is you screw it on the filter thread of your lens and then mount the whole lens to your camera in a reverse orientation. What this essentially does is it converts your lens into a macro lens lens (You can focus on things that are super close to your lens). Obviously there are some disadvantages to this approach rather than getting a proper macro lens. Firstly as your lens is mounted in reverse you don't have any control over the electronics (So auto-focus). Secondly, in case of canon lenses (in Nikon it closes down) the lens opens up the widest aperture (with no control) which can be a problem some times as you get a really shallow DOF which causes issues sometimes. For the second issue there is a workaround and it works (well sort of - alteast on Canon 600D and other similar cameras). Lets say you want to click a pic with an aperture...

I've been learning how to play the guitar for a few now days. As customary I had to render out a 3D image of one (not the exact guitar I'm learning on) I downloaded the basic structure of a guitar form some site a few days back (I forgot the link from where). Anyways it was a simple low poly model so I had made a lot of changes to the same. Refined the whole thing. Did the texturing, lighting and camera setup. After that rendered the whole thing out (took about 20 minutes for each image as 4K). The DOF was added later in Photoshop as rendering it out was too tedious.

I was playing around with DOF(Mental Ray) in 3Ds Max 2013. Here are some sample images that i got: