What is the difference between EF-S 18-55mm and EF-S 18-135mm?
I know there is a similar question that was asked here, but I could not get any answers there. Hence asking again:
Looking to buy the Canon 600D. But there is a huge difference in price due to the lens kits. What is the differentiating factor between these lenses?
Thank you for the clarifications.
(That's not the question you linked; it's more specifically exactly the same, and it has answers.)
The 18-55mm lens in the first (cheapest) kit is a "standard zoom", an equivalent to the classic 28-80mm zoom for film SLRs. It's versatile range being wide enough at 18mm for most landscape and interior shots, and long enough at 55mm to shoot tight portraits (head and shoulders) whilst being a comfortable distance from your subject (which also avoids any weird perspective effects).
The 18-135 is encroaching on "superzoom" territory, going from the same wide angle 18mm but all the way to 135mm, allowing you to shoot subjects that are two and a half times as far away as the 18-55mm lens. This extra range adds to the complexity of the lens design accounting for the difference in price.
Whether this is worth the additional cost is up to you. In general it is better to get different lenses for different purposes rather than a single jack of all trades lens, however if you want to travel light, or are a casual photographer and don't want to change lenses all the time it may be the right lens for you.
There are several tools online (such as this one, select "DX" as the format and compare 18mm, 55mm and 135mm) to help visualise the results of different focal lengths.
So if I am a casual photographer (weekend getaway shooting), I would not go wrong buying the 18-135mm lens right? Or is the 18-55mm lens recommended?
@Arpith I wouldn't say the 18-55mm lens is recommended, it's the lowest cost option and pretty much a bare minimum in terms of getting images out of the camera. It's so cheap it's not worth going body only (unless you already have a comparable all rounder lens). The 18-135 is a step up, in terms of versatility, but also price and size. The question is, are you going to want to shoot far away objects often? Are you going to want to shoot far away objects often enough to buy a dedicated telephoto lens?