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Sigma's fast wide APS-C zoom lens

Sigma Rumors readers can get 10% ($80) off at Adorama for the world’s fastest DSLR zoom lens, with coupon code SRAPRILENS. This offer is live through Sunday, April 19.

Sigma 18-35mm f/1.8 DC HSM Art (Canon) $719, free expedited shipping and 4% rewards

Once your cart is ready, click on “Proceed to Checkout”, and “Do you have a gift card or promo code?” in the payment section. Enter the code in the “Promo” field. Note it will only work if you make a purchase from the link above.

Adorama checkout page

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Sigma 150-500mm lens: Discontinued

In all likelihood, the Sigma 150-500mm f/5-6.3 APO DG OS HSM is discontinued.

Adorama deactivated the product pages for the Nikon and Pentax versions, and B&H is listing the latter as discontinued. The same should happen for the other mounts once they sell out. Meanwhile, the lens is offered with a $270 instant rebate.

The 150-500mm was released in early 2008, along with the recently discontinued 120-400mm f/4.5-5.6. As for the 50-500mm f/4.5-6.3 OS, chances are it will remain in the lineup until Sigma rolls out something similar, since the new 150-600mm lenses are not a substitute for it.

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EF-mount 24mm f/1.4 Art

DxOMark’s normalized and comparative results for the Sigma 24mm f/1.4 Art (on Canon 5D Mark III) are out.

The Sigma is the joint best-performing model for the same focal length, and it comes in joint second place (after the Canon EF 35mm f2 IS USM at 33 points) in the wide-angle category.

In this test, the Sigma wins on uniformity and sharpness outside of central areas, while the Canon has the edge for peak central sharpness. Since DxOMark uses a flat target, perhaps the field curvature of the Canon plays a role here.

The acutance maps help understand the behavior of each lens. Regrettably, the focusing distance is not specified.

See more at DxOMark

Image credit: DxOMark (click)

As detailed here, DxOMark’s protocols are extremely precise, and it seems they do everything to minimize the margin of error. But for lenses in particular, two things limit the span of their findings:

Continue reading ›››

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New patent for a Sigma super telephoto lens

Left is the optical construction. The two charts show, from left to right: spherical aberration, astigmatism, and distortion.

A patent corresponding to a Sigma 400mm f/2.8 DG OS HSM Sports lens has been ferreted out by Egami.

It comes with a couple of charts hinting at the performance of the lens (see above), and the usual information:

  • Publication date: 2015.4.9
  • Filing date: 2013.9.4
  • Focal length: 390.00mm
  • Angle of view: 6.29°
  • F-number: 2.91
  • Minimum focusing distance: 2700mm
  • Length of the lens: 353mm
  • Features: Optical Stabilization, internal focus

Provided that Sigma gets the whole package right (AF is as important as image quality for a 400mm f/2.8), it could be a tough rival to the big boys.

Let’s hope more resources will be allocated to manufacturing Sports lenses as well.

[Via Egami]

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Instant rebates on lenses

Sigma’s rebate program includes a set of lenses for enthusiasts, and the good old Merrill cameras.

The rebates on the 150-500mm f/5-6.3 and 10-20mm f/4-5.6 lenses will probably end on April 30, 2015.

Model Regular Price Price w/ Rebate* You Save
Sigma 10-20mm f/4-5.6 EX DC HSM $479 $379 $100
Sigma 17-50mm f/2.8 EX DC OS HSM $669 $519 $150
Sigma 18-250mm f/3.5-6.3 DC OS HSM $549 $349 $200
Sigma 70-200mm f/2.8 EX DG OS HSM $1,399 $1,199 $200
Sigma 50-500mm f/4.5-6.3 DG OS HSM $1,659 $1,509 $150
Sigma 150-500mm f/5-6.3 DG OS HSM $1,069 $799 $270
Sigma 4.5mm f/2.8 EX DC HSM Fisheye $899 $799 $100
Sigma 50mm f/1.4 EX DG HSM $499 $399 $100
Sigma 60mm f/2.8 DN Art $239 $209 $30
Sigma 105mm f/2.8 EX DG OS HSM Macro $969 $669 $300
Sigma DP1 Merrill $899 $699 $200
Sigma DP2 Merrill $899 $709 $190
Sigma DP3 Merrill $899 $708 $191
Sigma SD1 Merrill $2,299 $1,999 $300

* Adorama offers free accessories in kits, or an additional 4% rebate on lenses alone.

Sigma Gear: Prices & Stock Price/Stock Info as of 04/18/2015 01:31:31 GMT Access Here
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