Description
Irix 150mm f/2.8 Dragonfly
Model: IL-150DF-KCamera mount: Pentax K
Modern and versatile macro telephoto lens designed for full-frame high-resolution DSLR cameras. Its large aperture of f/2.8 facilitates shorter exposure times, while its moderately long focal length of 150mm provides an excellent compromise between the narrow viewing angle desired in advertising and portrait photography, and the convenience of hand-held photography. The unique feature of the Irix 150mm f/2.8 lens is the 1:1 Macro reproduction ratio already available at a focusing distance of 0,345m.
The lens is equipped with an aperture mechanism consisting of 11 aperture blades with a rounded shape which provides a pleasant blur of background and points of light. High precision of focusing across the entire range is ensured by a wide, rubber-coated focus ring with a rotational angle of 270°. An additionalFocus Lock ring ensures that the focus position remains fixed when needed.
The Irix 150mm f/2.8 Macro 1:1 is the first lens available in the new Dragonfly series, which combines the lightness and perfect ergonomics of the Firefly and the durable magnesium housing used in the Blackstone.
Key features of the Dragonfly version:
- Lightened Aluminium internal frame
- Lightweight composite housing reinforced with Al-Mg alloy and anti-scratch finish
- The anti-slip texture on the focusing ring
- Engraved markings covered with UV reactive paint
- Superior dust and moisture protection (5 sealings)
Technical data
Image size |
35mm ”Full Frame” |
Focal length |
150mm |
Field of View |
16,2°(diagonal) |
Focusing range |
0,345 m (1.1 ft)- ∞ |
Focusing type |
manual with lock function |
Aperture range |
f/2.8 – f/32 |
Aperture control |
via camera |
Aperture shape |
11 rounded blades |
Lens construction |
12 elements in 9 groups |
Front filter thread |
77 mm |
Magnification ratio |
1:1 (at 0,345 m) |
Bayonet mount |
Pentax K |
Dimensions (D x H) |
87 x 128 mm (3.43”x 5.04”) |
Weight |
840 g (1.81 lbs)
|
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