A friend of mine figured out that my 135mm $14.00 lens is the fastest one.
A lens speed is actually quantifying its aperture, or the amount of light it gets trough.
This one is f/2.8.
With a wide open aperture, the shutter speed is the fastest (thus the name).
However, the dept of field is the shallowest. This means that the focus area is limited. It's is usually desired for portraits.
It is also required for action shots, to get them sharp...
... than missing it completely, because your camera was writing a previous shot while the runner got right into the focus!!!
Clearly, I have plans on expanding the collection.
I've ordered a 500mm lens.
I want to get a 50mm/1.4 lens for portraits. They are quite expensive, but give a very shallow dept of field. 28mm/2.8 is also in my wish list.
Importantly, I want to get a telecoverter, it's an addon that increments the focal length of an existing lens.
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