Three New SIGMA Prime Lenses for L-Mount revealed

December 1st, 2020 Jump to Comment Section 5
Three New SIGMA Prime Lenses for L-Mount revealed

Japanese lens manufacturer SIGMA has introduced three lenses as addition to their »C | Contemporary« line of photographic lenses. The new SIGMA C »I Series« of Premium Compact Primes launches with three focal lengths: 24mm, 35mm and 65mm. They are specifically designed for L-Mount (Leica, SIGMA & Panasonic) and Sony E mount mirrorless cameras.

All three lenses are compact and all-aluminum constructions, the bayonet mount is made from durable brass and metal is also used in the internal workings. All that sound like the I Series lenses will be a pleasure to handle.

The design has a bit of a retro feel to it which I personally find very appealing. Especially the ribbed or knurled lens-hoods caught my eye. I have never seen that before.

Magnetic Lens Cap Test. Credit: SIGMA

Even the lens cap is made from metal and sticks magnetically to the front of the lens. You can buy the optional Lens Cap Holder CH-11, which is a key-ring type device that holds the lens-cap, while you are using the lens. I am constantly looking for lens caps, when I’m shooting. That’s why I like that SIGMA has put some thought into the »Missing Lenscap Problem«. Whether it’s actually practical remains to be seen.

SIGMA lens cap holder. Image credit: SIGMA

The three I Series lenses are internally focussed, so the front element is fixed and does not rotate or telescope out of the barrel. That makes using screw-in filters like Polas or Grads easier to use. Let’s have a closer look at the new SIGMA glass.

SIGMA 24mm F3.5 DG DN

At 64mm×48.8mm (2.5in.×1.9in.) and weighting just 225g (7.9oz) it’s a rather small package. The lens features 10 elements in 8 groups, 3 aspherical lenses and 1 SDL glass. A 9-blade rounded diaphragm with an aperture ring that closes the lens down from f3.5 to a maximum of f22. 55mm screw-in filters can be used in front of the lens.

Note: SDL is SIGMAs brand name for Special Low Dispersion glass — optical glass that minimizes optical aberrations while the light is travelling trough the material itself.

SIGMA 24mm
SIGMA 24mm without lens hood. Image credit: SIGMA

SIGMA claims high resolving power and pleasing bokeh with near-circular out- of-focus highlights.

The lens has focus-mode switch and supports DMF and AF+MF (Sony E only). The stepper-motor is compatible with high-speed autofocus. A near focus of just 10,8cm (1:2 magnification) at it’s 24mm (84.1° field of view) opens up interesting creative possibilities.

SIGMA 24mm
image credit: SIGMA

The SIGMA 24mm F3.5 DG DN comes with a petal-shaped lens-hood, a magnetic front-cap and a rear-cap.


The lens is constructed with 10 elements in 9 groups featuring 1 SLD glass and 3 aspherical lenses. The 9-(round) bladed aperture is controlled from f2 to f22 with an aperture ring. 58mm filters can be used via the filter-thread at the front. It’s also internally-focussing and has a near-focus distance of 27cm (10.6in.).

With 70mm×65.4mm (2.8in. ×2.6in.) and 325g (11.5oz.) the SIGMA 35mm F2 DG DN is a little heavier and larger that the 24mm, but it’s really compact considering it’s a full-frame lens.

SIGMA 35mm
SIGMA 35mm. Image credit: SIGMA

35mm on a full-frame body is a classic focal length for street-, portrait- and reportage photography. If it does live up to SIGMAs claims of optical quality — which I don’t really doubt — it’s going to be an ideal street photographer’s lens. Not least because of the retro-look and the haptics of it’s all-metal build.

The SIGMA 35mm F2 DG DN comes with a lens-hood, a magnetic front-cap and a rear-cap.


The last of the trio is a 64mm lens with a field of view of 36.8°. 12 elements in 9 groups, 1 SDL glass and 2 aspherical lenses project the light through a 9-bladed aperture, that goes from f2 to f22.

The near-focus of 55mm is nothing to write home about, but very likely no problem for the type of shots one does with a 65mm f2.

SIGMA 65mm hood
SIGMA 65mm. Image credit: SIGMA

Unsurprisingly the SIGMA C 65’s dimensions and weight: 72mm×74.7mm (2.8in.×2.9in.) 405g (14.3oz.) makes it the largest and heaviest of the bunch. However compared to other offerings with similar specs, it’s lightweight.

65mm is a bit of a strange focal length for my taste, especially because the SIGMA 65mm F2 DG DN is no macro. But then again, I shoot APS-C only, so maybe for full-frame shooters 65mm makes sense. I reckon it is suitable for portrait- and certain types of landscape photography.

SIGMA 65mm
image credit: SIGMA

The SIGMA 65mm F2 DG DN also comes with a lens-hood, a magnetic front-cap and a rear-cap.


The three focal lengths SIGMA has brought out cover a lot of those photographic scenarios one would use prime lenses for. Especially when used on a full-frame body. I’m sure a wide-angle and a longer focal length will be released in the future to make the set complete.

It’s not clear to me wether the focus-rings of the lenses are drive-by-wire or have hard-stops, when in MF mode. But as there are no focus-markings on the barrel, I assume they are electronic. Depending on how good the ring’s movements are translated to the focus-motors it could potentially be a pleasure to manual-focus all-metal built lenses.

Link: Website

Are you using any SIGMA in general or C-Line lenses in particular? What’s your take on the new SIGMA glass, interested? Let’s talk about it in the comments!


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