[KamKamdy]

Recently I bought a 0.5x wide and 2.0x conversion lens for my 5060, the 0.5x lens is connected to a macro lens as a unity, I have the following questions:

1. The wide end of 5060 is 27mm, but the effective focal length after installing the 0.5x wide coverter is around 20mm only (should be 13.5mm), Why? If the macro lens is removed from the wide converter, the focal length seems close to 13.5mm but it will be seriously out-focused, the wide converter can not be attached to the adapter directly.

2. The effective focal length after installing the 2.0x tele converter is also around 150mm only (should be 220mm) Why?

The brand of the lens are

Pro tama - Wide Conversion len
Focus optics - Tele Conversion len

Thanks for your reply.