Sign in to follow this  
Followers 0

What x zoom do

3 posts in this topic

Posted

My dad wants to go from a compact digital camera with 5x zoom to a DSLR in the

Share this post


Link to post
Share on other sites

Posted

55/18 :p

the x amount of zoom means nothing though, but basically an 18-55 would have roughly 3x zoom I believe.

But this is where a lot of confusion comes in. compact cameras often refer to their lenses as 28mm wide angle, whihc means nothing, what they mean is 28mm equivalent. and because of the crop, the 18 mm lens in a 1.6 crop DSLR is basically a 28mm equivalent as well.

Of course you need to learn that the x aount of zoom is useless and instead use mm's. afterall while a 18-55 lens has 3x zoom, a 70-200 lns has 2.8x zoom, so less x zoom, but, it's still got fare more zoom than the 18-55 since it starts farther out. of course you could do 200/28 and get a maximum zoom on that lens compared to a base 28 of 7x. but, it doesn't make much sense.

basically, in short. forget about *x zoom levels.

Share this post


Link to post
Share on other sites

Posted

As stated above, "X" zoom only means the ratio between the longest and shortest focal lengths on a lens.

18-55 lenses are usually your main walkaround when getting started, they do not zoom in very much compared to some compacts but as you get more into photography you'll see that one rarely uses long telephoto lenses unless photographing wildlife or sporting events.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0

  • Recently Browsing   0 members

    No registered users viewing this page.