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...
... to fully enjoy it, I spent some time mastering my focusing skills (remember, no automatic focus).
It forced me to think spatially. I had to understand where the focus area is before a runner comes and start taking pictures once they enter it.
Another tip. As you take continues shots, makes sure that they are written fast enough so there is no delay. Get the fastest card that is available to you and set the image size to medium or small.
It's ok to have a good shot in a smaller file...
Of course, you get what you pay for, and in comparison to the modern lenses, old ones are behind.
But they are cheap, let you experiment, save money. You can travel and take maybe a bit less perfect pictures, but they are still better than no pictures at all!
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