So here is the whole setup that I have been using.

Canon 70-200 f/2.8 (77mm filter thread)

Step down ring 77mm to 52mm (not ideal as it causes a lot of vigneting but most L series lenses are 77mm.

Reverse ring adapter 52mm male to 52mm male.

Sigma 28mm f/2.8 with manual aperture ring (52mm filter thread).

Basically every piece couples with the following in the order I listed them.

I could go about all the technical stuff but there are people that had already published this information and explained better than I could. So here are two of the links that I have checked:

Have fun.

I have been trying a new (for me) technique for Macro photography and I am quite pleased with the results.

This is done by connecting two lenses by the filter thread effectively using one of the lenses in reverse. Focusing becomes really hard as the deep of field is so shallow that even one millimetre of movement changes the focus in a very dramatic way.

A friend asked me to photograph the lens setup so he can have a look at how are the lens mounted and attached. That will be the following post in English. I have to repost this in Spanish for all my other friends.

Let us know what do you think of the fly’s face.