Tuesday, May 31, 2011

The User’s Review: Canon Zoom Lens EF 28-105mm 1:4-5.6 vs. 28-90mm 1:4-5.6 III



Similarities: 1:4-5.6; midrange zoom from 28mm; macro; plastic mount; 58mm filter; similar size when fully retracted.


Differences: 

EF 28 – 105 mm
EF 28 – 90 mm III
Longest zoom mm
105
90
Macro m/ft
0.48/1.6
0.38/1.3
Shortest at moom length mm
28
50
Longest at moom length mm
105
90
Focus ring
Stable
On the front piece and move
Front piece
Not turning and moving with the focus ring
Turning and moving with the focus ring
Rear lens
Sealed on the barrel
Move with internal barrel



Conclusions: I prefer the 28-105mm zoom. It has 1) a wider zoom range, 2) internal focusing (lens length will not change with focusing), and 3) sealed rear end to avoid dust into the barrels from this end.

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