I have just received my new Canon EF-S 10-22 ultra-broad angle lens. This is a single of Canon's most well-liked lens and is developed for the "crop sensor" collection of DSLR. A lot more on what randy jackson recent  a crop sensor is afterwards. My initial believed right after a few of frames is "Wow, this is genuinely broad, it wraps all around my block."

The problem of the day is why do I need to have a 10-22mm extensive angle lens. I by now have a EF-S 18-fifty five zoom that arrived with Canon X1i digital camera. So what am I heading to do with that additional 8mm of width for a extensive angle shot. That 8mm is like a football field when I am shooting a landscape in the distance (well probably not fairly a football area, but near).

There is a fantastic require for individuals of us that shoot landscapes for a broad angle lens. As you may possibly observe in my landscapes I are inclined to shoot extremely extensive pictures with mountains or red rocks in the foreground and the horizon in the distance. I have been shooting most of my landscapes at 18mm with my kit lens on the T1i. That indicates that I am shooting at 28.8mm in movie 35mm measurement. This is since the T1i is a crop sensor digital camera with a issue one.6x.

Now I have to describe the crop sensor things. Suffice to say that there are three ratios of crop sensors in the Canon line of cameras complete sensor, 1.3x, and 1.6x. This refers to the ratio of the sensor (the computer chip that sees the image and translates it to electronic). The total sensor is the exact same dimension as the 35mm digicam of a long time past. The two other ratios are, in result, a subset of the entire sensor and the 35mm film size. For practical purposes this signifies that the full sensor would see the entire football area, the 1.3x sensor would see inside of the 20 property lines and the one.6 factor would seize within the thirty garden lines. Now, you math majors out there do not maintain me to the specific proportions, I am just making an attempt to illustrate the idea.

Right here is a list displaying what Canon cameras have which sensor:


Canon EOS 1Ds, Mark II and II (Complete Body)
Canon EOS 5D and 5D, Mark II (Total Body)
Canon EOS 1D, Mark III,IV (one.3x Crop Frame)
Canon Digital Rebel, T1i,XSi,XS (1.6x Crop Body)
Canon EOS 20D,30D,40D,50D,7D (one.6x Crop Body)


Now what does all this have to do with me wanting, needing, lusting right after a ten-22mm vast angle? Now you know that this lens will fit on my digital camera (whew, that took a prolonged time). You will also know that the 10mm, the widest of the extensive angle, is truly a 16mm on my digicam compared to how it looks on a entire frame digicam. That is nonetheless really good and will seize genuinely ranging views of people red rocks that I am so fond of.

What about the other characteristics of the lens? All the testimonials I have study demonstrate it to be a extremely high quality "glass." Canon designates their leading-of-the-line lenses with the letter "L" in the description. Though the EF-S ten-22 f/3.5-4.five does not carry the "L" designation, the use of 3 aspheric elements and one SD aspect is a common characteristic of a high quality lens. My initial 1st shots with the lens left me with the impression of how clear and sharp it is.

This has quality optical elements and is not a "very low-conclude, customer sort lens". Some pundits have advised that if it had not been an EF-S form lens, it might have received the "L" designation, but considering that it will not fit on a professional stage DSLR (EOS 5D,1Ds series), Canon did not give it a "professional" L designation. In simple fact, no EF-S lenses have the "L" designation to day.

EF-S lenses, of program, are intended for use only with APS-C (1.6x) sensor Canon DSLRs and will currently only bodily mount on the Digital Rebel sequence, and EOS 20D,30D,40D,50D 7D. The EF-S design and style allows the rear component to be nearer to the sensor then with EF lenses, improving image quality, specifically at the shortest focal lengths. The "S" in EF-S implies "brief again focus" and now you know why.

There are many technical good reasons that this lens is great for wide shots and landscapes. The reviews have proven that it is extremely sharp and extremely quickly when vehicle focusing. On the unfavorable aspect I will be aware that, if you use this lens when looking at a man or woman up near it will make them search like they are standing in the circus exhibit with the distorted mirrors. It is clearly created for people pictures that are as extensive as all outdoors.