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Sigma 35mm F1.4 DG DN Assessment


The Sigma 35mm F1.4 DG DN is a quick, reasonable wide-angle prime lens for Sony Alpha full-frame and APS-C E-mount mirrorless cameras, the place it offers a 52.5mm equal focal size. It is also out there for Leica / Panasonic / Sigma L-mount cameras.

It options 15 parts in 11 teams, with two Particular Low Dispersion (SLD) parts, an Extraordinary Low Dispersion (ELD) factor, an ‘F’ Low Dispersion (FLD) factor and two aspherical parts.

There is a Tremendous Multi-Layer Coating to reduce inner reflections in order that flare and ghosting don’t happen and a water and oil repellent coating on the entrance factor.

This lens boasts a dust- and splash-proof construction and has a minimal focusing distance of 30cm with a most magnification of 0.19x.

It has a rounded 11-blade diaphragm which creates a pretty blur to out-of-focus areas of the picture and an inner focusing mechanism which suggests the lens barrel does not transfer.

There’s a stepping motor for quick, quiet and exact auto-focusing, whereas the focusing ring offers fantastic guide focus management.

A standard aperture ring runs from f/1.4 to f/16 in third-stop increments with an Auto setting additionally out there for camera-based aperture choice.

The Sigma 35mm F1.4 DG DN lens is accessible now priced at £749 / $899 within the UK and USA, respectively.

Ease of Use

Sigma 35mm F1.4 DG DN

Weighing in at 640g, the aluminium and Thermally Secure Composite (TSC) bodied Sigma 35mm F1.4 DG DN is comparatively gentle for such a quick, premium full-frame lens.

It is a bit of heavier than the comparable Sony FE 35mm F1.4, although, which at 524g is 106g lighter than this new Sigma different. The Sony lens equally makes use of a hybrid steel and engineering plastic bodied development.

It’s a lot, lot cheaper than its fundamental Sony rival, although, to the tune of round £750 within the UK and $500 within the US.

Sigma 35mm F1.4 DG DN
Sigma 35mm F1.4 DG DN

Its general measurement is well-suited to a digital camera just like the Sony A7R IV that we examined it with, as proven within the product images. Even with the equipped hood hooked up, it’s nonetheless pretty discrete for such a quick 35mm lens.

It measures 75.5mm × 109.5mm, making it a bit of longer than the Sony FE 35mm F1.8, which measures 76 x 96mm.

Construct high quality is just very good, far exceeding what you may anticipate from such a keenly priced lens.

Sigma 35mm F1.4 DG DN
Sigma 35mm F1.4 DG DN

It incorporates a brass bayonet mount that is supposedly extra sturdy than a traditional steel mount.

A rubber seal is included into the lens mount’s design to make it dust- and splash-resistant.

The Sigma 35mm F1.4 DG DN lens has a steel lens mount and it accepts 67mm filters through steel threads on the entrance of the lens.

Sigma 35mm F1.4 DG DN
Sigma 35mm F1.4 DG DN

The lens does not function built-in optical picture stabilisation, relying as a substitute on the digital camera physique’s stabilisation system.

The Sigma 35mm F1.4 DG DN lens has a really generously sized, ridged motor-assisted focus ring that’s properly damped. Guide focusing is feasible by utilizing the main focus mode swap to toggle between AF and MF.

There are not any laborious stops at both finish of the vary, making it a bit of harder to set focus at infinity. Polariser customers must be happy that the 67mm filter thread does not rotate on focus.

Sigma 35mm F1.4 DG DN
Sigma 35mm F1.4 DG DN
Sigma 35mm F1.4 DG DN

The Sigma 35mm F1.4 DG DN lens utilises a stepping motor which produces silent and clean focusing, making it well-suited to taking pictures each stills and video, with the general lens size remaining fixed throughout focusing.

With regards to auto-focusing, it proved to be a fast performer on the Sony A7R IV digital camera that we examined it with, actually as responsive because the Sony FE 35mm F1.4 lens.

We did not expertise very a lot “searching”, both in good or unhealthy gentle, with the lens precisely focusing nearly the entire time.

This lens has an Auto Focus Lock (AFL) button on the facet which as its identify suggests may be held down along with your left thumb to lock the lens on the present focus level. Alternatively, this customizable button may be re-configured to regulate different key digital camera settings.

Sony’s close to flawless Eye AF works completely with this lens, shortly locking onto and monitoring the topic’s eye regardless of the wide-angle view, and it absolutely helps Sony’s DMF and AF+MF taking pictures modes.

Sigma 35mm F1.4 DG DN
Sigma 35mm F1.4 DG DN

The Sigma 35mm F1.4 DG DN lens options an aperture ring that has 1/3EV stops starting from f/1.4 to f/16 and an Auto setting if you happen to favor to set the aperture through the digital camera physique.

There’s additionally a devoted swap for locking the aperture dial when it is set to Auto to stop it from being inadvertently moved , or to stop it from being set to Auto when the aperture ring is turned ON to any place aside from A, successfully locking the vary between the utmost to minimal apertures.

Fortunately there’s additionally a Click on swap on the lens barrel that permits you to de-click the aperture ring for silent operation throughout film recording or depart it on for stills images.

The Sigma 35mm F1.4 DG DN lens is not equipped with a lens case, nevertheless it does include an excellent high quality, hybrid plastic and steel, petal-shaped lens hood (LH728-01).

This hood has a slim part that continues the ribbed texture of the lens barrel and a rubberized grip for simpler dealing with and a devoted lock button that retains it hooked up securely to the lens.

Sigma 35mm F1.4 DG DN
Sigma 35mm F1.4 DG DN

Focal Vary

The 35mm focal size offers an angle of view of 63.4 levels on a full-frame digital camera.

Sigma 35mm F1.4 DG HSM

Chromatic Aberrations

Chromatic aberrations, sometimes seen as blue or purple fringes alongside contrasty edges, have been readily obvious in our check pictures notably when taking pictures wide-open at f/1.4, showing in excessive distinction areas. The instance beneath present the worst-case situation.

Sigma 35mm F1.4 DG DN

Gentle Fall-off

With the lens set to its most aperture of f/1.4, there may be apparent gentle fall-off within the corners, requiring you to cease down by no less than 2 f-stops to utterly forestall it.

Sigma 35mm F1.4 DG DN


There’s some barrel distortion evident in each the JPEG and RAW recordsdata – the Sony Alpha A7R IV does not routinely apply any corrections to the JPEG recordsdata.

Sigma 35mm F1.4 DG DN


The Sigma 35mm F1.4 DG DN is able to producing very good sunstars when stopped-down to f/16, as proven beneath.

The lens is a bit of inclined to flare when taking pictures straight into the solar, although, even with the equipped lens hood fitted.

Sigma 35mm F1.4 DG DN


The Sigma 35mm F1.4 DG DN is not claimed to be a macro lens, nevertheless it does usefully supply a minimal focusing distance of 30cm / 11.8in. and a most magnification of 0.19x. The next examples show how shut you may get to your topic.

Sigma 35mm F1.4 DG DN
Sigma 35mm F1.4 DG DN
Sigma 35mm F1.4 DG DN


Bokeh is a phrase used for the out-of-focus areas of {a photograph}, and is normally described in qualitative phrases, corresponding to clean / creamy / harsh and so on.

Within the 35mm F1.4 DG DN lens, Sigma have employed an iris diaphragm with 11 round blades, which has resulted in very interesting bokeh for a moderate-wide-angle lens.

We do realise, nevertheless, that bokeh analysis is subjective, so we have included a number of examples beneath on your perusal, all shot wide-open at f/1.4.

Sigma 35mm F1.4 DG DN
Sigma 35mm F1.4 DG DN
Sigma 35mm F1.4 DG DN
Sigma 35mm F1.4 DG DN
Sigma 35mm F1.4 DG DN
Sigma 35mm F1.4 DG DN


As a way to present you the way sharp this lens is, we’re offering 100% crops on the next web page.

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