Friday, 22 March 2013
Lens Review: Canon EF 135mm F/2L USM
The Canon EF 135mm f/2 L USM is one of the medium tele lenses in the Canon lineup and a member of Canon's prestigious "L" (Luxury) class. A few years ago we performed a test in the APS-C scope already and it turned out to be a superb performer here so it's naturally interesting to check its qualities on a high resolution full format body as well now.
Lens Review: Canon EF-S 55-250mm F/4-5.6 IS
Canon EF-S 55-250mm F/4-5.6 IS
TECHNOLOGY
Bokeh: The 55-250 has a circular aperture opening for more-rounded out-of-focus highlights which is nice.
Auto-focus: Micro Motor AF (autofocus) delivers relatively slow AF but focus accuracy is not a problem. Of course, being a narrow aperture lens (relatively deep depth of field) helps in this regard. FTM (Full Time Manual) focusing is not available. Actually, the manual indicates that you should avoid touching the focus ring during AF as it physically turns.
Colors: Colors produced by the 55-250mm F/4-5.6 are decent for a general user although the contrast is a bit low.
Chromatic Aberration (CA): Flare and CA are very well controlled and color cast is not noticed.
Magnification: The Canon EF-S 55-250mm f/4-5.6 IS Lens has a short MFD (Minimum Focus Distance) which yields a very high MM (Maximum Magnification) for a non-macro-specific lens.
Thursday, 21 March 2013
Canon EF 50mm War - F1.2 vs F1.4 vs F1.8
So
finally you have invested in a new DSLR and
are now looking for a good portrait lens which works well in low light?
One questions which has been repeatedly asked by almost every shutterbug is
about the 50mm lens from Canon. The Canon 50mm comes in 3 different models. 50mm
F1.2, 50mm F1.4 and 50mm F1.8. All of
them have a fixed focal length. To actually come to a conclusion on which one
to buy lets hit a comparison between the three.
Subscribe to:
Posts (Atom)