|
|
|
|
|
|
|
|
|
|
|
Sigma 28-135mm
F3.8-5.6 Aspherical IF Wide Angle Telephoto Zoom
Macro Lens
| Sigma 28-135mm f3.8-5.6 Aspherical IF Macro is one of several lenses introduced at PMA 2000 by Sigma Corporation. Incorporating aspherical optics, plus a floating inner focusing system, this lens minimizes spherical aberration and stigmatism. This lens can focus from infinity to 19.7 inches at all of the focal lengths without close-up accessory, and as close as 9.4 inches (1:2 reproduction ratio) at the 135mm zoom position. This lens incorporates an inner focusing system and features a non-rotating front lens barrel for convenient filter use. A custom designed "Perfect Hood" with bayonet mount is provided to prevent extraneous light from degrading the image quality. |
| Construction |
12 Groups / 13 Elements |
| Angle of view |
75.4°-18.2° |
| F stop range |
22-32 |
| Closest Focusing Distance |
50 macro (24)cm / 19.7 macro (9.4)" |
| Maximum Magnification |
1:2 |
| Filter Size |
62mm |
| Dimensions (Length x Diameter) |
75 x 75mm / 2.9 x 2.9"
Full Extended Length 119.5mm / 4.7" |
| Weight |
410g / 14.5" |
For Canon
|
For Nikon
|
For Pentax
|
For Konica Minolta
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
