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Firmware Update

Sigma Patent - 18-50mm F2.8 Lens With Optical Image Stabilization

Sigma 18-50mm F2.8 Lens image

On Sep 26, 2006 Sigma announced the 18-50mm F2.8 (Amazon | B&H) lens for APS-C DSLRs.  After that they announce 17-50mm F2.8 lens (B&H | Amazon) on Feb 10, 2010 as a successor of 18-50mm F2.8 lens with IS and improved optics.

Now, a new patent surfaced over the web that shows new version of Sigma 18-50mm F2.8 Lens with IS.

Take a look at the patent details below

SIGMA filed patent of 18-50 mm F2.8 for APS-C sensor with very short back focus.
This patent may be for one of new dp/DPs.

【公開番号】特開2017-211496(P2017-211496A) click here
【公開日】平成29年11月30日(2017.11.30)
【発明の名称】大口径防振付きズームレンズ

Specification and lens arrangement of embodiment 1
Focal length: 17.55 – 48.47 mm
F No.: 2.92
2ω: 81.42 – 32.32
Image height: 13.49 – 14.20 mm
Back focus: 1.0000 – 22.4957 mm
Lens length: 126.29 – 166.99 mm

If a true successor of  18-50mm F2.8 is coming After 10 years of Gap we do expect a lot of improvement in optics, AF speed, IS and overall performance of the upcoming Sigma APS-C lens.

We will update you soon as we get any new information. Also see Sigma new Foveon image sensor patent.

source

2 comments to Sigma Patent – 18-50mm F2.8 Lens With Optical Image Stabilization

  • Odin

    Why oh why 18mm, 16mm would be much better, giving it an effective 24 or 25.6mm on DX and Canon APS-C

  • Stella

    They should announce more F1.8 based lens for APS-C series. I do have the 18-35mm F1.8 lens for 80D but is the F1.8 range reaches to 50mm… it;s all great.

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