Panasonic 45mm Macro Lens Underwater Test

I have used Panasonic 20mm and 14-42mm kit lens for underwater photography for more than two years. These two lens can't focus on close objects, so it's really difficult to use them to take pictures of small stuffs with good results. Hence, I bought a second hand Panasonic 45mm Macro lens to improve my underwater pictures.

The minimum focus distance of the lens on the lend is 15cm(0.49ft). How big the object taken by the lends can be? The diameter of the coin below is 2.6cm(1.02in), and the image of it taken by Panasonic GF1(4/3 mirror less) underwater is like this:

So, if you take a picture of a coin-size frogfish, it will be approximately like this:

The following pictures are edited without cropping:

When I take pictures of smaller critters, I will also add FIT+5 and FIT+10 diopters. If you take a picture of a frogfish smaller than a finger nail, it will be approximately like this:

The following pictures are edited without cropping:

I went diving in Dauin, Philippines few days ago and took the pictures with this Panasonic 45mm Macro lens with double strobes. The following pictures are edited with cropping:

(critters bigger than 5cm / not minimum focus distance)

(critters smaller than 2cm / tried to take them at minimum focus distance)