TTArtisan M 35mm f/1.4

TTArtisan M 35mm f/1.4

Released around 2019 to 2020, this was among the earliest Leica M-mount lenses from TTArtisan, a Chinese maker that set out to offer affordable manual primes styled and built to suit modern Leica bodies [1][2]. It arrived at a low price point, well under the cost of comparable fast 35mm rangefinder optics, and uses an unusual eight-element, seven-group optical formula with an aspherical element that does not directly copy established Ultron or Distagon layouts [1][2]. Like several TTArtisan optics of the period, it is produced by DJ-Optical, and shares construction traits with that maker's other fast wide-angles [2].

The lens is an all-metal manual-focus design with engraved markings filled with paint, a focus ring carrying a Leica-style focus tab, and a clicked aperture ring with half-stop detents that is assembled tightly without play [2]. Focus travels roughly 90 degrees from the 0.7 m minimum distance to infinity [2]. The aperture uses ten blades [2]. The filter thread is 49 mm, slightly larger than the common 46 mm rangefinder standard, and the lens ships with a hood; reviewers describe a compact bayonet-style hood that some sources note can be removed to allow rectangular filter systems, while others received it fixed to the barrel [1][2]. With the hood mounted, the overall size is close to that of the Leica Summilux 35mm f/1.4 ASPH, and finder blockage is comparable to other modern fast 35mm lenses [1]. The lens was offered in black and silver finishes [2].

Optical qualities

Rendering The TTArtisan 35mm f/1.4 is a character lens rather than a clinically corrected one. At short to medium focus distances it renders smooth, largely undistracting backgrounds with little outlining, which reviewers compared favorably to the Zeiss ZM 35mm f/1.4 [2]. At longer distances the rendering deteriorates, with out-of-focus highlights losing their round shape toward the corners and strong field curvature producing an uneven, sometimes distracting plane of focus [2].

Sharpness On film, in-focus central regions are sharp and contrasty wide open, with good subject separation [1]. On high-resolution digital sensors the center is decent at f/1.4 but the midframe and corners suffer from pronounced field curvature, and the corners remain weak even stopped well down, making the lens a poor choice for infinity landscape or architecture work [2]. Near minimum focus, wide-open performance is softened by spherical aberration glow that clears by about f/2 [2].

Bokeh and transitions At close and medium range the blur is smooth and pleasant; stopping down renders out-of-focus highlights as ten-sided shapes due to the straight aperture blades [2].

Flare resistance Flare control is mediocre. With the sun near the frame edge the lens shows veiling flare both wide open and stopped down, and ghosting can appear with bright light sources in or near the frame [2].

Distortion and vignetting Distortion is low, with only slight barrel distortion that is rarely visible outside straight lines near the edges [1][2]. Vignetting is strong wide open, around 2.8 EV, improving on stopping down and largely stabilizing from about f/2.8 [2].

Aberrations Coma is significant at wider apertures and needs roughly f/5.6 to clear, so the lens is not well suited to astrophotography wide open [2]. Lateral chromatic aberration is minor and easily corrected, while longitudinal CA and some focus shift toward the rear are visible near minimum focus at wide apertures [2].

History

Development and Launch TTArtisan entered the market as a new Chinese brand intending to produce several Leica M-mount lenses, and the 35mm f/1.4 ASPH was its first such product, announced at a launch price reported around 380 US dollars [1]. It was positioned as an inexpensive alternative to established fast 35mm rangefinder lenses, deliberately styled to pair with contemporary Leica cameras [1][2]. Reviewers tested it on both film bodies such as the Leica M6 and digital bodies including the Leica M10 and Sony A7-series cameras via adapter [1][2].

Special editions No major factory special editions of this lens are widely documented beyond the standard black and silver finishes [2].

Collector Notes This M-mount lens should not be confused with TTArtisan's separate APS-C and Micro Four Thirds 35mm f/1.4, which uses a different seven-element, six-group design and a smaller, lighter all-metal body [3]. Reviewers using the lens on rangefinder Leica bodies report that it focuses via the camera's rangefinder mechanism, although one early sample's infinity hard stop carried the rangefinder patch slightly past alignment on distant subjects; LeicaLensList records this lens as not rangefinder coupled, so buyers should verify focus accuracy on their own body before relying on it [1][2]. Because production samples may differ from the earliest units, and because the lens is recent and inexpensive, condition checks should focus on smooth focus action, a wobble-free aperture ring, and presence of the original hood and caps rather than serial-number rarity [1][2].

Sources

• [1] 35mmc (Vincent Bihler). TTArtisan 35mm f/1.4 ASPH review. https://www.35mmc.com/24/09/2019/ttartisan-35mm-f-1-4-asph-review-by-vincent-bihler/
• [2] phillipreeve.net (BastianK). Review: TTArtisan 35mm 1.4. https://phillipreeve.net/blog/review-ttartisan-35mm-1-4/
• [3] Pergear. TTArtisan 35mm F1.4 Manual Focus APS-C Format Fixed Lens for M4/3. https://www.pergear.com/products/ttartisan-35mm-f1-4-for-m4-3-mount-cameras