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Hello. Todays' topic in Point TV is the 10-24mm wide-angle zoom from Tamron.
The first question obviously is: who needs wide angle lenses? Some photographers doing landscape?
In reality, this is not so narrow.
If you are shopping for a lens, the first one that you think you'll need is a tele lens because
you can use it to capture distant objects and who wouldn't like some candid photography?
However, there are many situations where a tele lens is absolutely useless.
For example, walking down some narrow old town streets, you would like to capture facades,
churches in their full height. Indoors you would need to take some birthday snaps, group photos
and you can't fit everyone in the frame using a tele lens. This is the situation that
calls for a wide-angle lens. I might say that a wide-angle lens is the second most important
lens after a portrait lens because it lets you capture almost anything in a more interesting way.
What does a wide-angle lens look like? It looks almost like any other lens to the naked eye.
Those focal length markings on the barrel show the difference, 10mm is a really wide angle.
This is the zoom ring, enabling you to use zoom and it has a focus ring for manual focussing.
It looks like any other lens from distant but the captured images are different.
Lets go and see, what's the difference then.
We have found a subject which can not be captured using a tele lens. A wide-angle lens,
on the other hand, will help us alot. Walking around town we stumbled upon this church.
Our wide-angle lens helped us to capture it. We would have got only details using
a tele lens, some architectural parts of it and never the church as a whole.
This lens enables us to do it. Lets give it a try.
Here it is. The whole church fits in the frame using this wide-angle.
Here we see the special feature of wide-angle lenses: the perspective distortion.
Because the image is compressed so to speak, the distant objects appear to be even farther.
This effect can be seen when capturing buildings: the upper part of the image seems as if compressed.
We can avoid this by selecting correct perspective so there would be no trapezoid effect.
We can also correct this later on using image editing software.
Anyway, we have captured the whole church in all its grandness without having to do it from miles away.
Barrel distortion is considered the biggest drawback of wide-angle lenses:
all straight lines which are parallel to the frame edges are curved inwards.
The Tamron 10-24mm is especially attractive lens because it exhibits almost no barrel distortion.
The best way to check for barrel distortion is to take pictures of straight vertical lines at
eye level and check the images for barrel distortion on computer screen.
Lets test it now using a door. We have a town hall side door here. I'm going to take a few snaps
at the widest 10mm setting so we can check the extent of barrel distortion.
Such test photos can be cool because there are many interesting doors in the world.
Looking at the photo briefly, the barrel distortion doesn't disturb at all.
If you were to check it with a ruler, then of course you would find some distortion.
With wide-angle lenses, distortions are partly inevitable but the brilliance of this lens lies
in the minute amount of it - doesn't disturb at all. If you don't mention it, almost no one notices.
In addition to beautiful but boring architectural and cityscape images, the wide-angle gives us
the opportunity to capture very interesting images thanks to its perspective distortions.
You can capture images you don't see everyday which of course presupposes you are not
scared of getting dirty and that you know how to use your creativity.
In this way we can get images usually not found in tourist guides or elsewhere.
Although we like to take candid snaps of people using a tele lens, the same can be
done by using a wide-angle lens. I'll pretend I'm photographing other objects but thanks to
the extremely wide angle of view, some bystanders will be captured as well.
It seems to me that our little espionage was absolutely successful.
The fact that wide-angle lenses exhibit strong perspective distortions, can be actually useful.
We can take interesting images. The large objects in the background appear smaller than
the small objects in the foreground, inverted perspectives so to speak.
Lets include this leaf and those cannons in one frame.
Here we go. Quite interesting photo. Because the perspective is so much different
compared to the human eye, it enables us to get more fascinating photos.
This was the Tamron 10-24mm f/3.5-4.5 ultra wide angle zoom lens.
What were the significant features then? Like I said, by using a wide-angle, we can
fit more into the frame than compared to tele lens or even a normal lens.
We can also take candid photos of persons, we can find interesting perspectives.
Basically you don't need to use such a big cannons on your camera all the time.
Also, the first and last scenes of this movie were shot using the same Tamron 10-24mm lens.
This means you can also take extremely interesting movie clips.
See you soon!