The easy-to-use, all-round telephoto lens
This lens is frequently used for distortion-free close-up portraits, particularly in fashion and in advertising photography involving kids that need to be photographed from a distance to appear natural. The optical performance, although optimized for infinity, has been kept very high, even close-up, to enable professional results in studio portrait and product photography. The shallow depth of field makes the Sonnar® T* 5,6/250 CFi lens ideal for blurring out unwanted backgrounds, making the subject stand out impressively.
The optical system is designed for high performance and corner-to-corner uniformity at wide open aperture. The optical materials chosen make this lens very unsusceptible to thermal fluctuations, so it can be safely used in radiant heat from direct summer sunshine, heavy industry furnaces, jet propulsion test beds, rocket launch sites and the like.
|Focal length||243.4 mm|
|Aperture range||f/5.6 - f/45|
|Angular field (hor./vert./diag.)||13°/13°/18°|
|Focusing range (from film plane)||2.5 m - ∞|
|Working range (from front end)||2.2 m|
|Number of elements/groups||4/3|
|Image ratio at closest range||1 : 7.8
|Negative-size||55 x 55 mm|
|Coverage at close range||427 mm x 427 mm|
|Filter connection||bayonett, series 60
|Dimensions||Ø 120.0 mm, length 105.5 mm|