DPReview.com is closing April 10th - Find out more

Excellent Lens for the Price.

Started Dec 28, 2015 | User reviews thread
Mr Low Notes
OP Mr Low Notes Junior Member • Posts: 28
Re: Excellent Lens for the Price.
2

What is the difference between the newer and older version?

Here you go as simple as I can put it.

The older versions 1 and 2:

12 elements in 10 groups.

A UD glass element to reduce chromatic aberrations (color fringes and halos).

Front extends when zoomed to longer focal lengths.

Front-group focus, the front rotates and extends slightly when focusing.

Uses a DC motor and gear reduction to move focusing elements and is a bit slow and noisy.

IS rated to about 3 stops. Makes a slight noise when working.

The newer STM version:

15 elements in 12 groups. (More Glass!)

1 UD glass element to reduce chromatic aberrations (color fringes and halos).

Rear focus.

Front extends when zoomed to longer focal lengths, but doesn't rotate when focusing.

New STM, STepper Motor, focus drive is pretty much silent and fast. Much like USM.

IS is silent and rated to 3.5 stops.

Perfect for video which is most of the reason Canon developed it.

Much better overall and Sharper!

I hope this helps,

MLN

Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow