Extreme macro


Micro SD card magnified

Micro SD card magnified

During prolonged rainy months, we get bored. Under my climate, this usually would fall on November, but 2019’s May was the coldest in 26 years, according to news of the time, persistently raining, and thus the same mechanism kicked in.

I read that you can achieve a much stronger zoom into individual objects by reversing your camera lens in regards to how it is attached to the DSLR. In short, you mount it backwards – and the shorter the designated focal length, the stronger the magnification factor.

The result, seen above, blew me away – this is merely the edge of a micro SD card, yes, that tiny memory card that we all are afraid to lose due to its tiny size. You can see the uneven surface of the plastic that, under any other circumstance, would appear smooth as a baby’s bottom, as well as fibres of the table on which the card is rested. Bear in mind, the card is smaller than a fingernail!

The lens used was a kit Canon 18-55 mm EF-S 1:4-5.6 IS STM lens held backwards to the sensor. This resulted in an extreme magnification for any practical usage in area of photography, and flirts with low-powered microscopic imaging.

As I was writing in my article about telescopes, common optical devices used for observing the world are divided by their structure into refractors (lenses), reflectors (mirros) and catadioptrics (lenses and mirrors). One of the points I raised was that a camera lens and a refracting telescope are essentially the same type of device. Here we get reminded that optical microscopes are also a member of this family.

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