Lens Summary
Brand: Sigma
Also Known As: Sigma 70mm f/2.8 Macro
Lens Type: Prime Lens
Format: Full Frame / FX
Focus: Autofocus
Lens Mount: Canon EF, Nikon F, Pentax K, Sigma SA, Sony Alpha
Release Date: N/A
MSRP Price: $449
Made in: Japan
Infrared Rating: Poor
Production Status: In Production
Lens Description: The Sigma Corporation is pleased to announce the launch of the new Macro 70mm f/2.8 EX DG lens . This medium telephoto macro lens is ideal for both digital SLR cameras and 35mm film SLR cameras. The 70mm focal length gives an equivalent field of view as our popular 105mm macro lens when used on digital SLR cameras with an APS-C size image sensor. The design of this lens makes it suitable for taking pictures in all situations from infinity to 1:1 macro, both with natural light conditions or flash. A Special Low Dispersion (SLD) lens and two high refractive index SLD lenses provide excellent correction for all types of aberrations and produce an exceptional level of optical performance. Sigma\'s super multi-layer lens coating reduces flare and ghosting, and helps create a natural color balance. The floating focus system provides extremely high optical performance from infinity to 1:1 Macro. A Focus Limiter Switch is incorporated on the lens, improving the speed and accuracy of autofocus by limiting the focus range. A screw-in lens hood is included for convenient use of circular polarizing filters. Features: Special Low Dispersion (SLD) lens and two high refractive index SLD lenses provide excellent correction for all types of aberrations Super multi-layer lens coating reduces flare and ghosting Floating focus system provides extremely high optical performance from infinity to 1:1 Macro Equivalent field of view to 105mm macro lens when used on a digital SLR camera with an APS-C size image sensor
Sigma 70mm f/2.8 EX DG Macro Specifications
Lens Specifications | |
---|---|
Lens Type | Prime Lens |
Focal Length | 70mm |
Mount Type | Canon EF, Nikon F, Pentax K, Sigma SA, Sony Alpha |
Format | Full Frame / FX |
Compatible Format(s) | 35mm Film / Full-Frame Digital Sensor DSLR (APS-C Sensor) |
Compatible with Teleconverters | No |
Maximum Reproduction Ratio | 1:1 |
Optical Stabilization (Image Stabilization) | No |
Aperture Information | |
Aperture Ring | Yes |
Maximim Aperture | f/2.8 |
Minimum Aperture | f/22 |
Maximum Angle of View (Full frame or larger format) | 34.3° |
Optical Information | |
Lens Elements | 10 |
Lens Groups | 9 |
Diaphragm Blades | 9 |
Aspherical Elements | 3 SLD glass elements |
Focus Information | |
Focus | Autofocus |
Built-in Focus Motor | Yes |
Minimum Focus Distance | 0.25m |
Distance Information | Yes |
Filter Information | |
Filter Size | 62mm |
Accepts Filter Type | Screw-on |
Physical Characteristics | |
Weather / Dust Sealing | No |
Mount Material | Metal |
Dimensions | 7.62 x 9.40cm |
Weight | 525g |
Other Information | |
Available in Colors | Black |
I do have this lens and i must say, it is an amazing lens.. mine needed some calibration (microadjustment) and after i did that, it was even more amazing. crisp sharpness and good contrast.
what do you mean by calbration/microadjustment?