Is a Sigma RF 50-120mm f/2.8 DC OS on the Way for APS-C Cameras?

I have received a couple of emails about the possibility of Sigma announcing an RF 50-120mm f/2.8 DC OS in October.

This is the type of lens that has been rumored to be coming from Canon for a long time. For a Canon APS-C sensor, this would basically be an 80–200 f/2.8 equivalent, which would likely do quite well for crop-sensor shooters.

We’ve seen some patents for such a lens from Sigma, including one from back in 2023.

Sigma has more than one lens coming for their confirmed announcement dates of October 8 and October 24, 2026. One of them is going to be some kind of prime lens faster than f/1.2. From a marketing standpoint, hit that f/0.95, people love that number.

Canon also has lens announcements coming before the end of the year, and one of them will be the RF 90mm f/2.8 IS Macro. That one will be a non-L lens, and we think it’ll be similar in design to the RF 15–30mm f/2.8 IS STM and RF 28–70mm f/2.8 IS STM.

Unfortunately, 2026 is going to end without any sort of announcement for full-frame Sigma RF lenses, but at least we have some new “RF-S” lenses coming from third parties in the next month or two.

Current Sigma Rebates

Ultra-Wide Prime
Save $50

Sigma 12mm f/1.4 DC DN Contemporary

APS-Cf/1.4 – f/1619.2mm equiv.

• Fast & lightweight wide-angle prime
• Stepping motor AF system
• Rounded 9-blade diaphragm
• Control ring
• 3 aspherical, 2 SLD elements
• Minimum focus distance: 6.8″
• Water- and oil-repellent coating
• Dust- and splash-resistant construction

$579$629

Buy Now →

Wide Prime
Save $125

Sigma 16mm f/1.4 DC DN Contemporary

APS-Cf/1.4 – f/1625.6mm equiv.

• Rounded 9-blade diaphragm
• Stepping motor AF system
• Super Multi-Layer Coating
• Two aspherical elements
• Two SLD, three FLD elements
• Weather-sealed construction

$414$539

Buy Now →

Standard Prime
Save $75

Sigma 30mm f/1.4 DC DN Contemporary

APS-Cf/1.4 – f/1648mm equiv.

• Rounded 9-blade diaphragm
• Stepping motor AF system
• Super Multi-Layer Coating
• Two aspherical elements
• One high-refractive index element
• Rubber sealing protects against dust

$344$419

Buy Now →

Portrait Prime
Save $125

Sigma 56mm f/1.4 DC DN Contemporary

APS-Cf/1.4 – f/1689.6mm equiv.

• Rounded 9-blade diaphragm
• Stepping motor AF system
• Super Multi-Layer Coating
• One SLD, two aspherical elements
• Weather-sealed construction

$454$579

Buy Now →

All-in-One Zoom
Save $75

Sigma 16-300mm f/3.5-6.7 DC OS Contemporary

APS-Cf/3.5-6.7 – f/22-4524-450mm equiv.

• Versatile all-in-one zoom lens
• HLA-driven high-speed AF motor
• Optical stabilization & OS2 algorithm
• 1:2 max. magnification at 70mm
• Low dispersion and aspherical elements
• Dust- and splash-resistant design

$694$769

Buy Now →

Prices at time of publishing. Affiliate links.