Tuesday, October 18, 2011

Nikon 13mm f/5.6


The Nikkor 13mm f/5.6 is an ultra-wide angle rectilinear lens which was manufactured by Nikon for use on Nikon 135 film format SLR cameras up until 1998, after which time it was discontinued. Photographers called this lens as Holy Grail, since this lens is very difficult to find. Only about 350 were made, and made only for special order.

The 13mm is one of Nikon's best lens. The Nikon 13mm is the widest non-distorting professional SLR lens ever made. It’s known that each Nikon 13mm lens blessed by a Shinto priest, and domestic customers were invited to their lens' ceremony. Not only does the 13mm cover a wider undistorted angle than any other professional SLR lens ever made, it does so with much less distortion Nikon's ordinary normal and wide lenses! The 13mm works great even on the D3X. 

Distortion
The 13mm f/5.6 has very little distortion, while most normal and common wide lenses have more. Your biggest issue will be keeping your rig square more than worrying about any curvilinear distortion of the 13mm lens. Nikon has a hard enough time making a 35mm or 28mm lens without distortion, yet this 13mm has far less. You can see sample image below (taken from wikipedia):


Falloff
Fallof never be a problem for Nikon 13mm f/5.6 lense, even if you use this lens wide open.

Filters
Since this Nikon 13mm is very rare, no filters were found fit over the front, even if you make some custom-made filter, it will be not good idea since any dirt on the filter would be in focus in your images.

Ghost
This Nikon 13mm will produce some ghosts if you shot by pointing it into the sun; but it’s very minor ghost.

Features
  • Very little distortion and lateral chromatic aberration.
  • Close Range Optical Correction (CRC) system: floating lens elements are used to reduce aberrations at close focusing distances
Construction
  • 16 lens elements in 12 groups
  • Extreme retrofocus optical design with backfocus of more than three times the focal length.
  • Triplet/Tessar type master lens group behind the aperture.
  • Wide angle lens group in front of the aperture to reduce the image size.
Versions
  • Nikkor F 13mm f/5.6 - March 1976 (non-AI). Serial numbers began with: 175021.
  • AI Nikkor 13mm f/5.6 - June 1977. Serial numbers began with: 175055.
  • AIS Nikkor 13mm f/5.6 - March 1982. Discontinued in 1998. Serial numbers began with: 175901

 

Monday, October 17, 2011

Olympus E-420 Review


“The Olympus E-420 delivers the professional-grade image quality of a digital SLR with the simple operation of a point-and-shoot camera,” said John Knaur, senior marketing manager - DSLR, Olympus Imaging America Inc. “Thanks to the camera’s small size and lightweight body, users can take the E-420 everywhere, and they will never miss another shot because the of the camera’s straightforward controls. Measuring 5.1 inches by 3.6 inches by 2.1 inches (excluding protrusions), it is the world’s smallest digital SLR, furthermore, combination with Olympus Digital 25mm f/2.8 Pancake lens.
Olympus Digital 25mm f/2.8 Pancake lens 
In addition to the new Olympus E-420, a unique lens is also introduced. The Olympus Digital 25mm f/2.8 is a so-called pancake lens. Whereas it was mainly Pentax that used to rule over these lenses, Olympus seem to have keenly joined in exploring this niche market. 



This lightweight 10-megapixel DSLR offers heavyweight technologies, including a bigger, more viewable 2.7-inch LCD and consumer-friendly fast On-Screen Autofocus, Face Detection, Shadow Adjustment Technology and Perfect Shot Preview to get the most out of the Live View experience. At 2.7-inches, the portable E-420 LCD is large enough for users to compose and review images without squinting. The small camera’s LCD is not just larger, it is part of a camera with technologies intelligent enough to take advantage of the Live View photography experience. These innovative technologies include:

Shadow Adjustment Technology captures detail in the bright areas of a frame and opens up detail in the shadows that other cameras would render too dark or underexposed;

One of the World’s Thinnest Lenses Meets the World’s Most Compact DSLR
The world’s smallest DSLR deserves a similarly compact lens, and Olympus has it: the ultra compact Zuiko 25mm f2.8 digital specific lens. Both lenses (Zuiko 25mm f2.8 and 28-84mm f3.5-f5.6) are part Olympus’ expanding line of 100 percent digital lenses – designed specifically for digital photography. Even if your subjects are moving, the camera continuously tracks their faces. Now, Olympus E-420 DSLR camera with 25mm lens is the best combination gear for compact and powerful photography.


Additionally, Perfect Shot Preview enables users to preview and select various photographic effects on a live, multi-window screen on the LCD before snapping the shot. The high-performance Live MOS image sensor in the E-420 delivers excellent dynamic range for accurate color fidelity and a new state-of-the-art amplifier circuit dramatically reduces noise and captures fine image details in the highlight and shadow areas. 

TruePic III for Image Clarity & Speed
Olympus’ TruePic III Image Processor produces crystal clear photos using all the pixel information for each image to provide the best digital images possible for every photo with accurate color, true-to-life flesh tones, brilliant blue skies and precise tonal representation in between. TruePic III also lowers image noise by one step to reduce graininess in images shot at higher ISO settings, enabling great results in low-light situations. 

Dust Reduction System for Spot-Free Images
Life moves too fast to spend time worrying about dust ruining your images.
Olympus E-420 DSLR camera with 25mm lens is a must have gear for you