Showing posts with label Sigma. Show all posts
Showing posts with label Sigma. Show all posts

Saturday, August 1, 2009

Lens Defects Database


The data presented here is based on the Lens Defect Survey. No survey is 100% reliable and as someone once may have said

'There are lies, damned lies, and statistics' (Mark Twain quoting Benjamin Disraeli). So be aware that:

Check it out Here

Friday, January 2, 2009

Nikon AF-S VR 70-200mm F2.8 G comparison review


This review forms part of a series in which we'll be looking at the performance of several 70-200mm F2.8 zooms, using both 35mm full-frame and APS-C format cameras.

Specifically, we'll be investigating how the two well-established 70-200mm F2.8 professional workhorse lenses from Canon and Nikon compare to the latest third party competition, with both Sigma and Tamron releasing new models in the opening months of 2008.

Check out Review Here

Focal Length Comparisons




















Enlightenment on FOV for lenses...Here


Anonymous Anonymous said...

Cool site, nice find! I have to collect some more money but the 12mm focal length worth it!

June 27, 2008 4:15 AM



BaStar said...

Ohh thanx for this one! great website. Btw.. lovin your blog :) u have a lot of good info here

Lens Test: Sigma 18-50mm f/2.8 EX DC Macro


How to reach out and adjust your subject while shooting with this exceptionally close-focusing macro.

Friday, October 17, 2008

Sigma 24-70mm F2.8 EX DG HSM


Sigma has today announced a new HSM version of its popular 24-70mm F2.8 EX DG lens. This large aperture standard zoom is considerably more compact than its predecessor, thanks to a brand new optical design which features 14 elements in 12 groups, including three aspherical, one ELD and two SLD elements.

The HSM focusing motor promises fast and silent focusing coupled with full-time manual focus, and the minimum focus distance is 38cm allowing a maximum magnification of 1:5.3. The lens will be available in Sigma, Canon, Nikon, Pentax and Sony mounts.

Check it out Here

Saturday, October 4, 2008

Wednesday, September 17, 2008

Sigma 18-200mm F3.5-6.3 DC for Nikon


The Sigma Corporation is pleased to announce the launch of the new 18-200mm F3.5-6.3 DC for Nikon. This high zoom ration lens, designed exclusively for digital SLR cameras, covers wide angle to telephoto.

The built-in motor is capable of autofocusing with all Nikon DSLR cameras. ..Info..Here

Sunday, August 24, 2008

Sigma 70-200mm F2.8 EX DG Macro HSM II review


Of course as one of Sigma's flagship lenses, the 70-200mm F2.8 boasts a suitably complex optical design, featuring 18 elements in 15 groups, two of which are Extraordinary Low Dispersion (ELD) glass and two Special Low Dispersion (SLD) glass for correction of chromatic aberrations.

Other attractions include internal focusing and zooming mechanisms, and a quick-release tripod mount collar which can be removed from the lens in seconds. On paper at least, this is a lens which might interest a huge number of photographers across a range of abilities; so is it worthy of that interest?

Full Review Here

Wednesday, August 13, 2008

Sigma 70-200mm F2.8 EX DG Macro HSM II review


Of course as one of Sigma's flagship lenses, the 70-200mm F2.8 boasts a suitably complex optical design, featuring 18 elements in 15 groups, two of which are Extraordinary Low Dispersion (ELD) glass and two Special Low Dispersion (SLD) glass for correction of chromatic aberrations.

Other attractions include internal focusing and zooming mechanisms, and a quick-release tripod mount collar which can be removed from the lens in seconds.

On paper at least, this is a lens which might interest a huge number of photographers across a range of abilities; so is it worthy of that interest?

Full Review Here
FM Review Here

Tuesday, July 22, 2008

Sigma 10-20mm f/4-5.6DC EX HSM : Review bythom


Most newcomers to wide angle lenses think that the primary thing that distinguishes them is their angle of view: a wider lens gives you a wider angle of view on a scene. Yes, you can see more "width" through the viewfinder, but that's actually not the real reason why pros tend to gravitate towards "very wide angle" lenses instead of "modestly wide" ones. The real issue is depth...Full Article...Here


the Sigma10-20mm group icon Sigma10-20mm Group


D40xographer said...

Good review by Thom Hogan and vindicates my choice on buying this lens. Thanks Orb keep up the good work.




Friday, July 4, 2008

Primes - Which one is for you ?


There are many threads at flickr regarding the nifty-fifty and primes in general.

So here are some reviews on the 3 most that seem to pop up.

Sigma AF 30mm f/1.4 EX HSM DC - Test Report / Review

Nikkor AF 50mm f/1.4 D - Review / Lab Test Report

Nikkor AF 50mm f/1.8 D - Review / Test Report

Note: That the Sigma 30mm 1.4 HSM is the only that will Autofocus on the D40/D60 range of camera's.

But keep your eyes open for a Nikon 50mm AF-S or Sigma 50mm HSM that are coming down the pike?

Tuesday, July 1, 2008

Sigma 50mm f/1.4: A new standard?


Sigma bolsters its top-end EX range with the announcement of a HSM focusing-motor-equipped 50mm f/1.4 lens. Offering a moderate telephoto field of view on APS-C cameras, Sigma's DG designation means it will also work as a standard lens on full-frame digital cameras. We believe this is the first time a 50mm f/1.4 lens has been offered with a ring-type focus motor...Read More Here

Monday, June 23, 2008

A "Super-Wide Angle" Lenses Shootout

















The APS-C sensor in Nikon digital SLRs has a “crop factor” of 1.5X. Wildlife shooters immediately liked the idea of their 200mm lens having the same angle of view as a 300mm lens.

While the gains in apparent focal length on telephoto lenses were praised by nature shooters, the downside of this “crop factor” was that now your 17-35mm lens lost its “super-wide” ability and became a pedestrian 26-52mm lens.

Many early adopters of digital flocked to their local camera shops to purchase the large (and rather expensive) 14mm Nikkor lens. At least then they had an effective focal length of 21mm; wide enough for some, but not truly “super wide” on a DX format body...Full Shootout...Here

Tuesday, May 27, 2008

Sigma APO 70-200mm F2.8 EX DG/HSM


Sigma has announced new addition to its digital optimized DG range of zoom lenses in the form of the APO 70-200mm F2.8 EX DG/HSM. This fast telephoto zoom sports a fixed F2.8 aperture throughout the range, HSM technology for high speed silent focus and four SLD (Special Low Dispersion) glass elements. A new 'digitally optimized' coating is claimed to minimize flare and ghosting when used on a D-SLR, and the lens will be available in Sigma AF, Canon EF, Nikon D, Konica Minolta and Pentax AF mounts...Here

FM Review Here

Sunday, April 20, 2008

Lens Test: Sigma 18-200mm f/3.5-6.3 DC OS AF


The optical image stabilizer is just one of the reasons to love this new zoom for Canon, Nikon and Sigma DSLRs.


September 2007

Sigma's long-awaited, second Optical Stabilizer (OS) lens ($549, street) is an 11.1X digital-only superzoom with one SLD and three aspheric elements. A 29-320mm equivalent, it follows Sigma's first OS lens, an 80-400mm f/4.5-5.6 ($999, street), by more than four years, and outdoes its predecessor with a sophisticated new autopanning sensor that detects extended lateral movement, then engages only the vertical stabilizer to allow blur where you want it...Full Review Here