@LightBender Unfortunately, there's a thin line between "surprise" and "shock", and I think some of the submissions are closer to "shock". I think this subject is a little too broad for a pop photo competition. I can bold and underline the "viewer" part though...
@LightBender I've noticed that case, but I think it's a combination of youth, and perhaps cultural differences...?
@scottbb I had not considered the close nature of "surprise" and "shock" is some people's usage. That's very interesting. Also, I think youth is the most likely culprit. Though I suppose I'd be a little angsty too if I had to live in the bay area. :D
@scottbb I think I should have been more specific. I think I was more concerned about pricing. Is there any chance that EF is more common and so you'll easily and get EF lenses in less price as compared to EF-S? Or vice versa?
Also, I read that EF-S supports EF lenses too. But not sure if EF supports EF-S lenses. So I was thinking EF-S could be more flexible.
He says that using EF-S on EF mount can create some camera problems. So I feel we are a bit restricted with EF mount. So won't it be more flexible to have EF-S Mount instead? As it supports both.
@Vikas EF vs EF-S comes down to: do you want to use a full-frame sensor (24 mm x 36 mm), or a 1.6 crop sensor (15 mm x 22.5 mm)? If you want a larger sensor, you need a lens mount that can accomodate it (EF). Because the sensor on EF-S bodies is smaller, they can accept the larger EF lenses, but the inverse is not true: you can't use EF-S lenses on EF bodies (I think there might be a couple exceptions, or workarounds, but it's easier to just ignore that) (also, I'm not a Canon person, so...
... I don't really know). Smaller sensors and smaller glass is less costly to produce, so EF-S systems tend to cost less. But as I said, it still allows you to use EF glass if you find something you really like. If you commit to an EF body, you're committed to EF glass.
@Vikas EF lenses project an image circle large enough for FF cameras with 36x24 mm sensors. EF-S lenses project a smaller image circle that covers APS-C cameras with (roughly) 22.4x15 mm sensors. In general, most EF lenses are higher quality than EF-S lenses, sometimes significantly so. The higher quality lenses also cost a lot more.
@Vikas Using a Canon APS-C camera does allow one to use either EF or EF-S lenses. But in exchange one settles for a smaller sensor. Larger sensors perform better in many scenarios, particularly in low light with moving subjects. They also make blurring the background easier. In the end it all depends upon what you're willing/able to spend and what kind of image quality you must have or what you're willing to settle for.
