Newsletter Competition


Sony Cyber-shot T77
Sony Cyber-shot T700
Sanyo HD2000
Autodesk Stitcher
Panasonic DMC-FS25
Portraiture 2
Olympus E-30
Sony A900
Olympus SP-565 UZ
Genuine Fractals 6

All Reviews
Best Digital Cameras


Iridient Developer 3.0
Date: Sep 04, 2015
Name: Rachik

Win an ExpoImaging Rogue FlashBender 2 – Portable Lighting Kit!
Date: Sep 04, 2015
Name: Ana Georgievska

Fujifilm FinePix S8600
Date: Sep 04, 2015
Name: Rizvee

Impossible B&W SX-70 Hard Color
Date: Sep 04, 2015
Name: bargas geneva

Toshiba Satellite Radius 12
Date: Sep 04, 2015
Name: manuel parra belmonte

Firmware Updates for Multiple Coolpix Cameras
Date: Sep 04, 2015
Name: Julia Webster

Win DxO Optics Pro 10, Film Pack and Viewpoint!
Date: Sep 04, 2015
Name: ellie san

Impossible B&W SX-70 Hard Color
Date: Sep 04, 2015
Name: naomi agriffin

Eyefi Mobi Pro 16GB
Date: Sep 04, 2015
Name: marckus tikus ruk

Epson SC-P400 Professional Photo Printer
Date: Sep 04, 2015
Name: jack kojek

Latest Threads


Panasonic DMC-LX1 Announced (796)

Kodak Easyshare Z981 (514)

Panasonic Lumix DMC-LX2 (481)

Ricoh Caplio R3 Announced (422)

Panasonic DMC-FZ30 Announced (361)

Fujifilm Finepix E550 Review (264)

Sony DSC-H5 and Sony DSC-H2 (242)

Canon G7 (227)

Samsung S800, Samsung S600 and Samsung S500 (209)

Impossible B&W SX-70 Hard Color (190)


September 2015
August 2015
July 2015
June 2015
May 2015
April 2015
March 2015
February 2015
January 2015
December 2014
November 2014
October 2014

Latest News Stories


Digital Photography Blog
Digital Wedding Forum
Everyday Eye
Mark Goldstein
Mobile Phones

Sigma 50-500mm F4-6.3 EX DG/HSM for Four Thirds

Sigma 50-500mm F4-6.3 EX DG HSM LensPMA 2006: The Sigma 50-500mm F4-6.3 EX DG/HSM lens for Four Thirds is announced at PMA today.

Sigma UK Press Release

The Sigma Corporation is pleased to announce the new 50-500mm F4-6.3 EX DG HSM for the Four Thirds fitting. This high zoom ratio lens is optimised for digital SLR cameras and capable of covering a wide range of focal lengths from 50mm standard to 500mm ultra telephoto. When used on a Four Thirds camera, the effective focal length will be 100-1000mm. This ultra-zoom lens employs a seven-group zoom system, which provides a high zoom magnification of 10x. Triple-cam Rear Focusing System ensures high precision throughout the whole focus range. The new lens coating reduces flare and ghosting, is a common problem of digital cameras, and also creates an optimum colour balance. This lens uses four pieces of SLD (the special low dispersion) glass for excellent correction of color aberration.

- Most effective coating for minimizing flare and ghost with digital SLR cameras.
- Triple-cam Rear Focusing System ensures high precision throughout the whole focus range.
- Uses four SLD (the special low dispersion) glass elements for superior optical performance.
- Accepts both 1.4X and 2X APO EX Tele-Converters, the lens can be used as a 1000mm ultra-telephoto zoom lens.

A zoom lock switch eliminates ‘zoom creep’ during transportation, a convenient addition when traveling.

The rear focus mechanism produces a non-rotating front lens element which accepts a bayonet petal shaped hood, included, which prevents extraneous light from degrading the image quality.

Focal Length (4/3 Format) 100-1,000mm
Minimum Aperture F22
Lens Construction 20 Elements in 16 Groups
Angle of View (4/3 Format) 23.4°- 2.5°
Number of Diaphragm Blades 9pcs
Minimum Focusing Distance 100cm –300cm(39.3”-118.1”)
Maximum Magnification 1:5.2
Filter Size 86mm
Lens Hood Petal Hood
Dimensions Diameter 95mm (3.7”) x Length 218.5mm (8.6”)
Weight 1842gr/64.9oz
SRP                 £899.99

The appearance and specifications are subject to change without notice.

Published: Sunday, February 26, 2006

Compare Prices

Support PhotographyBLOG: Buy this product from one of our affiliate retailers (US first/red, UK second/blue):

Reader Comments

  1. "Bigma" returns, one of my favorite lenses! Weighing exactly half of my Son's birthweight, packing this beauty is a chore, but well worth the sweat. A big boost for the 4/3rds fans! A great lens!

    nick in japan at 12:55pm on Sunday, February 26, 2006

  2. doesn't that mean with a 2x teleconverter you would have a 1000-2000

    steve phillips at 04:14pm on Friday, October 20, 2006

  3. I didn't spend 3 years in 7th Grade for nothin!..100x2=200, I think!
    200-2000 ain't bad, if you can handle the vibration, in other words, a tripod would be really necessary for the long side!
    I use my 50-500, almost, on a daily basis, a wonderful lens for the $, but it is heavy, and a bit slower than it's older brother, the 170-500, which was tested by Popular Photography as actually a 168-554, and, is actually brighter than the Bigma (In Canon mount it tested to 5.6 at the max telephoto setting)
    I use this lens too, alot now that it is getting darker as winter sets in. The drawback to the 170-500 is that it dosen't focus as close as the 50-500, and I have to put a 12mm spacer between the lens and camera to get close shots, and, then I also lose infinity because it will focus only out to about 60 ft.
    I highly recommend both of these lenses,the original 170-500 was discontinued, a used one at a bargain price would be great. There is no "creep-lock" on the 170-500, solved on the 50-500 with a manual lock to prevent that un-nerving extention when it isn't expected!
    Big filters so be prepared to add more $ if you plan on them, I use a UV/ protector on both mine, just can't bring myself to get a PL!
    One last thing, the 50-500 actually is a great all-round lens because it focuses so close, shooting stuff as close as your feet on the ground is nice, real nice, a great portrait lens, but if you plan on getting one, better start doing those push-ups now!

    nick in japan at 10:53pm on Friday, October 20, 2006

Add Your Comments

Please keep your comments relevant to this article. All spam postings will be removed. To create a live link, simply type the URL (including http://) or email address. You can include up to 2 URLs. Please use TinyURL or a similar service for longer URLs. Line breaks and paragraphs are automatically converted - you don't need to use <p> or <br> tags.

Name (required):

Email (required, not displayed):

Website (optional):

Enter your comments:

Remember me

Email me when someone replies to this comment


Pixmania Logo

Discover a wide range of digital cameras at low prices. Buy cheap cameras from Sony and Canon. Share your photos thanks to digital photo frames.

Varnam Logo

Varnam offers digital photo frame with built-in memory & battery.

© Copyright 2003-2008 Photo 360 Limited
Best Viewed at 1024x768 Screen Resolution