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My Lenses |
Canon USM EF-S 10-22, f/3.5-4.5:
- Equivalent to 16 -
35.2 (35mm format)
- Minimum hand held
speeds (1/f-length): 1/15 1/30 sec
- Very little
vignetting at any focal length or aperture
- Adjusting the
polarizer for maximum effect will usually result in uneven sky
brightness with any wide lens. Avoid using polarizer at 10mm
- Sharp across all
apertures, even at f3.5 slight increase in sharpness at f4.0/5.6
- Little CA, mostly
at 10mm end
- Closest Focus:
0.24m / 9½ inches
- Filter Size: 77mm
- Weight: 385g / 13.6
oz
- Field curvature at
the wide end can make it difficult to work with. Bodies like the EOS350D
arent accurate enough with focusing to decide that infinity really IS
infinity, so you need to manually focus at 10mm for sharp landscapes (or
use f16)
- If you are using
the cokin system then you can't go all the way out without getting
vignetting from the filter holder
Canon USM EF 28-105 f/3.5-4.5:
- Equivalent to 44.8
168 (35mm format)
- Minimum hand held
speeds (1/f-length): 1/45 1/168 sec
- Sharp from f5.6,
seems best at f8
- Stop to f8 to
suppress soft edges
- No zoom creep
- Closest Focus: 0.5m
/ 1.6 ft.
- Filter Size: 58mm
- Weight: 375g / 13.1
oz
Canon USM EF 100-300, f/4.5-5.6:
- Equivalent to 161
480 (35mm format)
- Minimum hand held
speeds (1/f-length): 1/161 1/480 sec
- Softer at long end
- Best at f8 - f11
- Dips badly at
f22-f32
- Closest Focus: 1.5m
/ 4.9 ft.
- Filter Size: 58mm
- Weight: 540g / 1.2
lb
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