Saturday, August 25, 2007

Single Focal Length (Four Thirds System)

8mm f3.5 Diagonal Fisheye Lens
(16mm: 35mm equivalent)

OLYMPUS : ZUIKO DIGITAL ED
8mm f3.5 Fisheye



This high-performance diagonal fisheye lens has a diagonal angle of view of 180-degree, enabling ultra-close-up photography at 2cm from the lens front, while with exaggerated perspectives and distortion.
An ED (Extra-low Dispersion) lens component is incorporated to ensure sharp imaging performance with minimal chromatic aberration at the periphery of the image. Imaging a mysterious world invisible to ordinary human vision, the fisheye lens enables creative photographic expression that challenges conventional views of the world.


Lens construction = 10 elements in 6 groups
Closest focusing distance = 0.135m / 5.31 in.
Maximum image magnification = 0.22x (0.44x:35mm equivalent)
Filter size = none
Dimensions = f79 x 77mm / f3.11 x 3.03 in.
Weight = 485g / 17.1 oz.
Accessories = Hood (built-in), Case




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24mm f1.8

SIGMA: 24mm f1.8 EX DG ASPHERICAL MACRO

This large aperture F1.8 standard lens has a minimum focusing distance of 18cm (7.1 in.) and a maximum magnification of 1:2.7. Two aspherical lenses ensure the utmost correction of distortion and aberrations. The floating focus system provides high optical performance from 18cm to infinity. The Dual Focus (DF) system makes the lens easy to hold and eliminates focus ring rotation during auto-focusing, making the lens particularly suitable for accepting the petal-type lens hood.


Lens construction = 10 elements in 9 groups
Closest focusing distance = 0.18m / 7.1 in.
Maximum image magnification = 0.37x (0.74x:35mm equivalent)
Filter size = 77mm
Dimensions = f83.6 x 87.9mm / f3.3 x 3.5 in.
Weight = 520g / 18.3 oz.
Accessories = Hood, Case




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25mm f1.4 (50mm: 35mm equivalent)

Panasonic: LEICA D SUMMILUX 25mm f1.4 ASPH

This lens, which features 10 lens elements in 9 groups, including one large-diameter aspherical lens, combines outstanding F1.4 brightness at maximum aperture with an exceptional optical performance. The use of one Super ED lens and three ED lenses suppresses chromatic aberration to minimize color bleeding. A floating focus system allows macro shots at a closest focusing distance of 38 cm. An aperture ring on the lens barrel gives this lens, when mounted on the LUMIX DMC-L1, a familiar analog operating feel.


Lens construction = 10 elements in 9groups
Closest focusing distance = 0.38m / 14.96in
Maximum image magnification = Apporox. 0.17x (35mm film camera equivalent)
Filter size = 62mm
Dimensions =f77.7mm / 3.06in
Weight = 510g / 18oz
Accessories = Lens Cap, Lens Hood, Lens Rear Cap, Lens Storage Bag




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30mm f1.4
(60mm: 35mm equivalent)

SIGMA:
30mm f1.4 EXDC HSM


SLD (Super Low Dispersion) and ELD (Extra Low Dispersion) glass elements eliminate transverse chromatic aberration, while an aspherical lens corrects various other aberrations and ensures sharp imaging performance at any point from the closest focusing distance of 40cm to infinity.
An HSM drive increases the speed and quietness of autofocusing and enables fulltime manual focusing, making this large-aperture standard lens applicable to a wide range of scenes.



Lens construction = 7 elements in 7 groups
Closest focusing distance = 0.4m / 15.75 in.
Maximum image magnification = 0.1x (0.2x:35mm equivalent)
Filter size = 62mm
Dimensions = f77.8 x 63.9mm / f3.06 x 2.52 in.
Weight = 410g / 14.5 oz.
Accessories = Hood, Case





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150mm f2
(300mm: 35mm equivalent)

OLYMPUS : ZUIKO DIGITAL ED
150mm f2.0


Super ED (Extra-low Dispersion) and ED lens elements provide effective compensation for minimized axial chromatic aberration common with telephoto-type lenses, while inner focusing and floating mechanisms ensure fast, accurate autofocusing.
Offering fine imaging performance throughout the shooting range, this telephoto lens also features a compact, highly mobile body.



Lens construction = 11 elements in 9 groups
Closest focusing distance = 1.4m / 55.12 in.
Maximum image magnification = 0.13x (0.26x:35mm equivalent)
Filter size = 82mm
Dimensions = f100 x 150mm / f3.94 x 5.91 in.
Weight = 1,465g / 51.7 oz. (without tripod adapter)
Accessories = Detachable tripod adapter, Hood, Case





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300mm f2.8
(600mm: 35mm equivalent)

OLYMPUS : ZUIKO DIGITAL ED
300mm f2.8

Available only by special order, this superb, carefully crafted large-aperture, super-telephoto lens delivers imaging performance that simply outclasses anything you�ve ever seen.
Three ED (Extra-low Dispersion) lens elements eliminate chromatic aberration and ensure uniform, clear imaging performance throughout the image plane, preventing MTF degradation all the way to the image periphery. A real gem featuring both high mobility and outstanding picture quality at the super-telephoto position.




Lens construction = 13 elements in 11 groups
Closest focusing distance = 2.4m / 94.49 in.
Maximum image magnification = 0.15x (0.30x:35mm equivalent)
Filter size = 43mm
Dimensions = f127 x 285mm /f5.00 x 11.22 in.
Weight = 3,290g / 116.0 oz.
Accessories = Drop-in filters (4 types), Tripod adapter (built-in), Hood, Case




http://www.four-thirds.org

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