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Review Summary
2026-05-07T05:56:35
Size of the lens is perfect for the smallest setups, the price is awesome and the 40mm focal length is special. Apart from that (maybe I received a bad copy) the auto focus was extremely dissapointing. In the a7Cii it hunts like crazy and even when it said that it aquired focus, while editing, I noticed that the images were not in focus. Can it be user error? YES. Can it be both user error and faulty gear? YES. But for me TTAtrisan have been a gamble, so I didn't get another... I just went with the Zeiss 55mm.
Emmanuel R.
Black, Silver
Sony E, Nikon Z, L Mount
Full Frame
40mm
Autofocus
Minimum: f/16
Maximum: f/2
Sony E: A7, A7II (A7M2), A7III (A7M3), A7IV (A7M4), A7R, A7RII (A7RM2), A7RIII (A7RM3), A7RIV (A7RM4), A7RV (A7RM5), A7S, A7SII (A7SM2), A7SIII (A7SM3), A7C, A9, A9II, A9III, A1, ZV-E1, A7C2, A7CR, A5000, A6000, A6100, A6300, A6400, A6500, A6600, A6700, NEX-3, NEX-3N, NEX-3R, NEX-5T, NEX-5R, NEX-5N, NEX-7, NEX5C, ZVE-10, ZVE-10II, FX30
Nikon Z: Z5, Z6, Z7, Z6II, Z6III, Z7II, Z9, Z8, ZF, Z50, ZFC, Z30, etc
L-Mount:
Panasonic: S1, S1R, S1RII, S1H; S5, S5M2, S5M2X, S9, etc
Leica: SL, SL2, SL2-S, T, TL, TL2, CL, etc
Sigma: FP, FPL, etc
52mm
1.31' (0.4m)
No
57 Degree
7pcs
9 Elements in 6 Groups
5.89 - 6.21 oz (167 - 176g) (Approx.)
Sony E: 2.40 x 1.73" (61 x 44mm)
Nikon Z: 2.56 x 1.81" (65 x 46mm)
L Mount: 2.48 x 1.69" (63 x 43mm)
Small Lens Big Character
Versatile Focal Length with Fast Aperture
A Go-to Full Frame Focal Length
Ideal for street, travel, documentary and everyday photography. It balances environmental context with subject isolation - a truly Versatile Focal Length trusted by photographers.
F2 Large Aperture
Creates Soft Background Blur
Lets in more light for faster shutter speeds and better low-light performance.
All-metal Construction - Crafted from 5052 Aviation Aluminum
Weighs just 167-176g, with a refined metal finish and premium feel. The compact design supports flexible shooting angles and maintains excellent balance even on APS-C bodies.
Clicked Aperture Ring
The clicked aperture ring delivers clear tactile feedback with each stop, allowing fast, confident aperture adjustments.
0.4m Minimum Focusing Distance
Get closer to capture facial expressions and fine details.
Excellent image Quality
Combining ED and Aspherical (ASPH.) elements, this small lens effectively controls chromatic aberration while maintaining clarity.
Fast & Accurate Autofocus
Features an STM stepping motor for quick, smooth and precise focusing.
Supports Face Detection
Firmware Update Interface
The Type-C interface for firmware update of AF 40mm F2 is designed on the rear lens cap, which improves the aesthetics of the lens.
Note:
Type-C cable with data transfer function is required
Upgraded with Windows system (Windows10 would be better)