Canon EF 100mm f/28L IS USM 1-to-1 Macro Lens for Canon Digital SLR Cameras |
EF 100mm f 2.8 Macro USM has excellent diaphragm:
- Canon finally obtained it right along with NINE blades.
- Round to f/5.6, nonagonal from f/8 on.
- Stops down to f/32.
- Just like al SLR lenses, the diaphragm is definitely never perfectly symmetrical at smaller apertures. This is certainly normal; this is not a LEICA rangefinder lens, which are about the only lens whose diaphragms are completely symmetrical at all apertures.
- The EOS system does not indicate the truth f/stop as focused more closely. If applying a additional lighting meter - which isn't most likely - you will have to compensate manually for the natural light loss as focused more closely.
- EF means "electronic focus," meaning that there is an autofocus continuous motor inside the lens by itself. All Canon lens since 1987 have been EF.
- L implies as expensive as L.
- IS implies Image Stabilization.
- USM implies Ultra-Sonic Motor, meaning AF is definitely pretty much quiet.
Example photo taken with Canon EF 100mm f/28L IS USM |
For picture quality, it really significant & invaluable to get this IS on a macro lense. The IS made the big difference among Canon EF 100 f28 Macro with this new Canon EF100mm f28L Macro IS USM lens:
In the exact same aperture (let say 3.2); the brand new 100mm 2.8L IS generated better bokeh and also improved contrast, colour. On lower speed (below 1/60) - the brand new 100mm 2.8L IS definitely defeat the non-IS. A picture at 1/20s using IS enable is actually clearer as compared to 1/100s of the older lense (without IS).
It weighs in at about below you'd probably earliest expect, that often is a good point. it is well suited for apply just like a normal purpose telephoto, specially if you'd like close up focus flexibility. This Canon EF 100 is really a compromise. It is a lens best managed from the area just like a collaboration macro and as well average telephoto.
Fot detail features and specification, please http://www.CanonEF100.com