Sigma is looking to end 2020 with a bang. Today, the imaging company announced a new premium full frame mirrorless lens category – their I Series of lenses and three new lenses: the 24mm F3.5 DG DN, 35mm F2 DG DN, and 65mm F2 DG DN Contemporary lenses. As more and more photographers embrace mirrorless cameras, it only makes sense that Sigma has responded by creating lenses designed for smaller bodies and shorter flange distances. Here’s what to expect.
Tech Specs via Sigma
SIGMA 24mm F3.5 DG DN | Contemporary
| Lens Construction: | 10 elements in 8 groups (1 SLD, 3 aspherical) |
| Autofocus Motor: | STM |
| No. of Diaphragm Blades: | 7 rounded |
| Min. Focus Distance: | 4.3 in. (10.8cm) |
| Max. Magnification Ratio: | 1:2 (half macro) |
| Filter Size: | 55mm |
| Dimensions (DxL): | L-Mount: 2.5 x 1.9 in. (64 x 48.8mm) E-Mount: 2.5 x 2.0 in. (64 x 50.8mm) |
| Weight: | L-Mount: 7.9 oz. (225g) E-Mount: 8.1 oz. (230g) |
SIGMA 35mm F2 DG DN | Contemporary
| Lens Construction: | 10 elements in 9 groups (1 SLD, 3 aspherical) |
| Autofocus Motor: | STM |
| No. of Diaphragm Blades: | 9 rounded |
| Min. Focus Distance: | 10.6 in. (27cm) |
| Max. Magnification Ratio: | 1:5.7 |
| Filter Size: | 58mm |
| Dimensions (DxL): | L-Mount: 2.8 x 2.6 in. (70 x 65.4mm) E-Mount: 2.8 x 2.7 in. (70 x 67.4mm) |
| Weight: | 11.5 oz. (325g) |
SIGMA 65mm F2 DG DN | Contemporary
| Lens Construction: | 12 elements in 9 groups (1 SLD, 2 aspherical) |
| Autofocus Motor: | STM |
| No. of Diaphragm Blades: | 9 rounded |
| Min. Focus Distance: | 21.7 in. (55cm) |
| Max. Magnification Ratio: | 1:6.8 |
| Filter Size: | 62mm |
| Dimensions (DxL): | L-Mount: 2.8 x 2.9 in. (72 x 74.7mm) E-Mount: 2.8 x 3.0 in. (72 x 76.2mm) |
| Weight: | 14.3 oz. (405g) |
L-Mount Alliance Means Business
Lens mounts are typically a proprietary affair with each camera company keeping their cards close to their vests and restricting accessibility to who can make fully functioning third-party lenses. Sigma’s participation in the L-Mount Alliance allows them make lenses that can be used by a number of camera bodies (Leica’s SL, TL, and CL cameras for one, and Panasonic’s S line for another) giving photographers options. We love options.
Today’s announcement is a clear sign in the investment that Sigma has put into the Alliance and how it will ultimately be a net benefit for photographers. Personally, as I consider upgrading my current full frame set up, it’s likely that an L-mount camera is looking like a viable option.
What We Know So Far
Based on the information released so far, there are a number of things that we can look forward to. For starters, all-metal lens construction and metal lens hoods mean that we’re in for a premium experience with the I Series of lenses. All three lenses have manual aperture rings with knurled surfaces that should make for a great feel in the hand.
Pricing and Availability
All three lenses are expected to be available starting in mid-January 2021 (because I think we’ve all had enough of 2020) and I’m looking forward to checking them out. Pricing has been listed as follows:
- 24mm F3.5 DG DN | Contemporary (MSRP $549)
- 35mm F2 DG DN | Contemporary (MSRP $639)
- 65mm F2 DG DN | Contemporary (MSRP $699)
Product Images
Sigma 24mm F3.5 DG DN | Contemporary I series lens. 
Sigma 35mm F2 DG DN | Contemporary I series lens. 
Sigma 35mm F2 DG DN | Contemporary I series lens. 
Sigma 65mm F2 DG DN | Contemporary I series lens. 
Sigma 65mm F2 DG DN | Contemporary I series lens. 
Sigma 65mm F2 DG DN | Contemporary I series lens. 
Sigma 65mm F2 DG DN | Contemporary I series lens.
