I just got my new Canon EF-S 10-22 ultra-wide angle lens. This is one of the most popular Canon lenses and is designed for the "sensor crop" series of DSLRs. More information about what a sensor is then collected. My first thought after a couple of frames is "Wow, this is really wide, wraps around the building."
The question of the day is because I need a 10-22mm wide angle diffuser. I already have an EF-S 18-55 zoom supplied with CanonX1i camera. So what will I do with it more than 8 mm in width for a wide angle shot. 8 mm which is like a football field when I'm shooting a landscape in the distance (and maybe not quite a football field, but close).
There is a great need for those of us who shoot a wide angle lens for landscapes. As you can see in my landscapes tend to shoot wide shots with the mountains and red rocks in the foreground and the horizonin the distance. I was shooting most of my landscapes with my 18mm lens kit on T1i. This means they are shooting at 28.8 mm in 35mm format. This is because the T1i is a camera with a 1.6x sensor crop factor.
Now I have to explain things crop sensor. Suffice it to say that there are three reports of crop sensors on the line camcorders Canon full sensor, 1.3x and 1.6x. This refers to the ratio of the sensor (the chip that sees the image andtranslates to digital). The sensor is the same full size 35mm camera of past years. The two other reports are in fact a subset of the full sensor and 35mm film. In practical terms this means that the sensor would see the entire full football field, the sensor would 1.3x yard inside the lines 20 and the 1.6 factor that captures within 30 yard lines. Now, the math majors out there I keep the proportions correct, I'm just trying to illustrate the concept.
Here is a list showing how their sensor Canon cameras:
Canon EOS 1Ds Mark II and II (Full Frame)
Canon EOS 5D and 5D Mark II (Full Frame)
Canon EOS 1D Mark III, IV (1.3x Crop Frame)
Canon Digital Rebel, T1i, XSi, XS (1.6 x Crop Frame)
Canon EOS 20D, 30D, the 40D, 50D, 7D (1.6 x Crop Frame)
Now, what all this has to do with me wanting, needing, lusting after a 10-22mm wide angle? Now you know that this goal is best for my > Camera (damn, that took a long time). You also know that the 10mm, the widest of wide angle, is actually a 16 mm on my camera than it appears on a full frame camera. Which is still very good and really captures ranging views of those who are so fond of red rocks.
What about the other characteristics of the lens? All the reviews I've read make it a very high quality "glass." Canon designates their top-of-the-lineLenses> with the letter "L" in the description. Although the EF-S 10-22 f/3.5-4.5 does not carry "The designation" means the use of three aspherical elements and an SD is a common feature of a lens quality. My first first shots with the lens I was left with the impression that it is as clear and crisp.
This has a quality of optics and is not a "low-end target of consumer type. Some experts have suggested that if it was not a type EF-S lenscould have received the designation "L, but since it is not appropriate for a pro level DSLR (EOS 5D, 1Ds series), Canon does not give a" The professional designation. In fact, not EF-S have the "L" designation to date.
EF-S lenses, of course, are only designed for use with APS-C (1.6x) sensor Canon DSLR and currently only physically mounted on the Digital Rebel series and EOS 20D, 30D, 40D, 50D 7D. The EF-S design allows the item back to be closer to the sensorthen EF, improve image quality, especially in shorter focal lengths. The "S" in EF-S means "fire while ago" and now you know why.
There are many technical reasons that this goal is good for long shots and landscapes. The reviews have shown that it is very strong and very fast when autofocus. That will be noted on the downside, if you use this aim a person looking closely will make them look like they are standing inThe circus shows with distorted mirrors. It 'clearly designed for those shots that are as wide as all outdoors.
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