14/04/25
Tokina atx-m 11-18mm F2.8 X - Lens overview, Highlighted Features and Specifications
17/06/23
Exposition Animaux Fantastiques @ Musée du Louvre-Lens
20/07/19
The "Moon lens" ZEISS Biogon 5.6/60: A camera lens custom-made for the Moon
17/09/16
Alpa & Hasselblad Cooperation: Hasselblad and Alpa Sharing Expertise
and Hasselblad HC 2.8/80 mm mounted
and Hasselblad HC 2.8/80 mm mounted
ALPA
www.alpa.ch
23/11/08
Mamiya Sekor AF 28mm f/4.5 D Lens
Mamiya Sekor AF 75-150mm f/4.5 D Zoom Lens
- Compatible cameras: 645AF (requires upgrade to 645AFD), 645AFD, 645AFDII, ZD camera (requires firmware upgrade)
- Optical construction: 11 elements in 10 groups
- Angle of view: 50 ~ 26 degrees
- Aperture range: f/4.5 ~ 32
- Min. focus distance: 3.3ft. (1m)
- Max. magnification: 0.09 ~ 0.16x
- Area covered: 545 x 409mm (at 75mm) - 293 x 220mm (at 150mm)
- Equivalent in 35mm: 47 ~ 93mm
- Filter diameter: 77mm
- Hood: Bayonet type
- Dimensions (LxD): 5.7 x 3.4in. (145 x 86mm)
- Weight: 2.5lbs. (1.14kg)
13/11/08
Nikon-Nikkor 50mm f/1.4 Manual Lens
Specifications Nikon-Nikkor 50mm f/1.4 Manual Lens
- Lens construction: 7 elements in 6 groups
- Closest focusing: 0.45m/1.5 ft.
- Picture angle: 46°
- Filter attachment size: 52mm
- Hood: HS-9, HR-1
- Dimensions: 63 x 40mm
- Weight: 250g
Nikon-Nikkor 50mm f/1.2 Manual Lens
Specifications Nikon-Nikkor 50mm f/1.2 Manual Lens
- Lens construction: 7 elements in 6 groups
- Closest focusing: 0.5m/1.7 ft.
- Picture angle: 46°
- Filter attachment size: 52mm
- Hood: HS-12, HR-2
- Dimensions: 68.5 x 47.5mm
- Weight: 360g
Nikon-Nikkor 35mm f/1.4 Manual Lens
Specifications Nikon-Nikkor 35mm f/1.4 Manual Lens
- Lens construction: 8 elements in 8 groups
- Closest focusing: 0.2m/0.7 ft.
- Picture angle: 74°
- Filter attachment size: 52mm
- Hood: HN-2
- Dimensions: 63
Nikon-Nikkor 28mm f/2.8 Manual Lens
Specifications Nikon-Nikkor 28mm f/2.8 Manual Lens
- Lens construction: 8 elements in 8 groups
- Closest focusing: 0.2m/0.7 ft.
- Picture angle: 74°
- Filter attachment size: 52mm
- Hood: HN-2
- Dimensions: 63
Nikon-Nikkor 20mm f/2.8 Manual Lens
Specifications Nikon-Nikkor 20mm f/2.8 Manual Lens
- Lens construction: 12 elements in 9 groups
- Closest focusing: 0.25m/0.85 ft.
- Picture angle: 94°
- Filter attachment size: 62mm
- Hood: HK-14
- Dimensions: 65 x 42.5mm
- Weight: 260g
07/11/08
Sigma lens 18-50mm F3.5-5.6 DC HSM for Nikon

- Focal Length: 18-50mm
- Minimum Aperture: F22
- Lens Construction: 8 Elements in 8 Groups
- Angle of View: 76.5°- 31.7°
- Number of Diaphragm Blades: 7
- Minimum Focusing Distance: 25 cm / 9.8”
- Maximum Magnification: 1:3.5
- Filter Size: 58 mm
- Lens Hood: Bayonet Type
- Dimensions: Diameter: 69.6 mm / 2.7” x Length: 60 mm / 2.4”
- Weight: 250 g / 8.8 ounces
- Mount (AF): Nikon
29/10/08
Firmware Update for Olympus Zuiko Lens ED 40-150mm F4.0-5.6
Firmware Update for Olympus Zuiko Lens ED 35-100mm F2.0
Firmware Update for Olympus Zuiko Lens 14-42mm F3.5-5.6
Firmware Update for Olympus Zuiko Lens 35mm F3.5 Macro
Firmware Update for Olympus Zuiko Lens 25mm F2.8
17/09/08
Carl Zeiss Tele-Tessar T* 4/85 ZM

27/05/08
Sigma APO 200-500mm F2.8 /400-1000mm F5.6 EX DG ultra telephoto zoom lens
Gentec introduces new Sigma APO 200-500mm F2.8 / 400-1000mm F5.6 EX DG ultra telephoto zoom lens



Gentec International is pleased to announce Sigma’s new APO 200-500mm / 400-1000mm EX DG ultra telephoto lens offering a fast F2.8 aperture at the 500mm focal length and F5.6 at 1000mm.
This powerful lens covers widely used focal lengths from 200mm to 500mm and maintains the large F2.8 aperture throughout the entire zoom range, making the lens ideal for astrophotography, portraits, wildlife, and sports. The dedicated attachment doubles the focal length range and ensures autofocusing with an aperture of F5.6 all the way up to the 1000mm focal length.
A Special Low Dispersion (SLD) glass element and three Extraordinary Low Dispersion (ELD) glass elements provide excellent correction for all type of aberrations. Sigma’s super multilayer coating reduces flare and ghosting to ensure high image quality throughout the zoom range. The lens hood, designed exclusively for this lens, blocks out extraneous light. A 72mm filter can be inserted at the rear of the lens, and a circular polarizing filter can be used in situ thanks to the ingenious internal rotation mechanism. The dedicated lithium ion battery is used to power the zooming and autofocus operation; this battery is built into the lens barrel. For the convenience of the photographer, focusing distances and focal lengths can be viewed on the built-in LCD panel.
The suggested retail price of the APO 200-500mm F2.8 / 400-1000mm F5.6 EX DG lens is $19,999.95. The lens includes a 400-1000mm F5.6 Attachment, Battery Pack (BP-21), Battery Charger (BC-21), Dedicated Hard Case, and Carrying Strap.
SPECIFICATIONS:- Focal Length: 200-500mm (400-1000mm with Attachment)
- Minimum Aperture: F22
- Lens Construction: 17 Elements in 13 Groups
- Angle of View: 12.3°- 5°
- Number of Diaphragm Blades: 9
- Minimum Focusing Distance: 200-500 cm / 78.7-196.9”
- Maximum Magnification: 1:7.7
- Filter Size: 72 mm (Rear)
- Dimensions Diameter: 236.5 mm / 9.3” x Length: 726 mm / 28.6”
- Weight: 15,700 g / 553.7 ounces
- Mounts (AF): Canon, Nikon, Sigma
About Gentec International
Gentec International is Canada's leading consumer accessory products company supplying a complete range of photo, video, digital, sport optics, home theatre, electronics, wireless and mobile audio products to the Canadian retail marketplace. Gentec offers prominent brand names such as Optex, Sigma,Velbon, Roots, SanDisk, Sunpak, Bushnell, Tasco, Zeiss, PlanetWireless, Energy, Sony, Electrohome, Prolink, Stinger, Peripheral, and Best Kits & Accessories.
Photos (c) Sigma Corporation - All rights reserved
29/01/08
Nikon PC-E Nikkor 24mm f/3.5D ED
Wide-angle NIKKOR lens with Perspective Control
- Wide shifting and tilting range (shift: ±11.5mm; tilt: ±8.5°)
- ±90° lens revolving capability for versatile tilt/shift effects
- Maximum reproduction ratio of 1/2.7 (at 0.21m)
- Three ED-(Extra-low Dispersion) glass elements provide superior sharpness and colour correction by effectively minimizing chromatic aberration
- Three aspherical lens elements minimize various types of lens aberration
- Nano Crystal Coat virtually eliminates internal lens element reflections, effectively reducing ghosting and flare
- High-performance Nikon Super Integrated Coating delivers superior colour reproduction while substantially reducing ghosting and flare
- Rounded nine-blade diaphragm for more natural appearance of out-of-focus image elements
- Lens aperture can be preset using an aperture ring and the aperture stop-down button
- Auto aperture control with electromagnetic diaphragm is possible with the Nikon D3 and D300