Question 1

What is the Leica 35mm f/1.4 Summilux-M ASPH 11874?

Accepted Answer

The 11874 is the pre-FLE (floating lens element) version of the Leica Summilux-M 35mm f/1.4 ASPH. It uses a 5-group, 9-element optical design with an aspherical element, an 11-blade aperture, and fits the Leica M mount. It is a fully manual focus lens with no autofocus or image stabilisation.

Question 2

What is the difference between the Leica 11874 and the 11663?

Accepted Answer

The 11874 is the earlier ASPH version without a floating lens element (FLE), while the 11663 is a later revision that introduced an FLE for improved close-focus performance. Both share the Summilux-M 35mm f/1.4 ASPH name, but many photographers describe the 11874 as having a distinctly different rendering style, particularly for out-of-focus transitions and bokeh.

Question 3

Is the Leica Summilux-M 35mm f/1.4 ASPH (11874) good for street photography?

Accepted Answer

Yes. The 35mm focal length gives you a natural field of view that's wide enough to capture context without distorting faces, and the compact 338g body doesn't draw attention on the street. The f/1.4 aperture lets you shoot in low ambient light without flash, which is essential for candid work. The manual focus rangefinder coupling rewards zone-focusing technique, which many street photographers prefer for speed.

Question 4

Can I use the Leica 35mm Summilux 11874 for astrophotography?

Accepted Answer

Yes — f/1.4 gathers a lot of light, which matters for stars and Milky Way shooting, and the 35mm focal length captures a wide swath of sky. Keep in mind this is a manual focus lens with no image stabilisation, so you'll rely on a sturdy tripod and careful infinity focus. At f/1.4 some edge softness is typical of fast lenses, so stopping down to f/2 or f/2.8 can sharpen star points noticeably.

Question 5

Does the Leica 11874 have weather sealing?

Accepted Answer

No. The Summilux-M 35mm f/1.4 ASPH (11874) does not have weather sealing. If you shoot in wet or dusty conditions, extra care is needed. This is worth checking on any used example — inspect the condition notes carefully for any history of moisture exposure.

Question 6

What filter size does the Leica Summilux-M 35mm f/1.4 ASPH use?

Accepted Answer

The filter thread is 46mm, and the lens body itself measures 58mm in diameter. The 46mm filter size is relatively compact, which keeps the lens light and slim on the camera. Standard 46mm screw-in filters — ND, UV, polariser — all work here.

Question 7

Is a lens hood included with the used 11874?

Accepted Answer

Yes, a matching lens hood is included with this lens. The hood helps cut flare and stray light and adds a measure of physical protection to the front element while you shoot.

Question 8

How does the Summilux-M 35mm f/1.4 compare to other fast 35mm lenses for M mount?

Accepted Answer

Within the Leica M ecosystem the main alternatives are other Summilux-M 35mm variants — the FLE version (11663) and older pre-ASPH designs. If you're considering third-party options for M-mount, the Voigtländer Nokton 35mm f/1.2 is a popular used alternative at a lower price point with its own character. The 11874's aspherical design and rendering keep a strong following despite newer options existing.

Mount	Leica M
Focal range	Standard
Prime / Zoom	Prime
Focal length (min)	35 mm
Focal length (max)	35 mm
Max. aperture	f/1.4
Stabilisation
Sensor format	Full Frame
Weight (Grams)	338
Year of release	1994

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Leica 35mm f/1.4 Summilux-M ASPH (11874)

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About the Leica 35mm f/1.4 Summilux-M ASPH (11874)

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