How do I go about creating this effect in Photoshop cs6?
Don't forget to mark this question as useful :)
This is how I would go about it. You will need an image in good resolution (as big as the zoomed part). Pardon my very simple samples, I hope you can get the idea anyway!
Open the image. Make a round selection of the part you will want zoomed in using the
Elliptical Marquee Tool.
Once you have your circle selected, copy and paste in a new layer (one way is to use right click on the selection, then
Layer Via Copy).
In a new document -or using the same one-, resize your original image so the background looks 'smaller'. Keep your circular selection layer in the original size (don't use
Image > Image Size, instead use
Add a 5px (more or less) white stroke to the circular shape using
Blending Options > Stroke.
Add a 90 degrees shadow (going up-down) using
Blending Options > Drop Shadow.
You can add more effects to make the lense look a little more realistic. For example, you could use the Warp Tool (
Edit > Transform > Warp) to make the circle more 'bloated', or you could also add a darker Inner Shadow (in the layer,
Blending Options > Inner Shadow).