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7Artisans AF 40mm f/2.5 Lite vs Viltrox AF 28mm f/4.5

Both are L-Mount primes for everyday and street — here's how the specs differ and which to pick. Every spec is from the manufacturer's own catalog.

Last verified 2026-09-01 · L-Mount · prices change — check the retailer

Spec7Artisans AF 40mm f/2.5 LiteViltrox AF 28mm f/4.5
Focal length40mm28mm
Max aperturef/2.5f/4.5
Typeprimeprime
Coveragefull-framefull-frame
MountL-MountL-Mount

Which should you buy?

Where to buy

7artisans AF 40mm F2.5 Full-Frame Auto Lens (for L Mount)

7Artisans AF 40mm f/2.5 LiteSee price on Amazon

Amazon links are affiliate links — we may earn a commission at no extra cost to you.

VILTROX 28mm F4.5 L-Mount Ultra-Thin Pancake Lens Auto Focus 28 mm f/4.5 Chips-Size Full Frame Wide Angle Lens for Leica

Viltrox AF 28mm f/4.5See price on Amazon

As an Amazon Associate we earn from qualifying purchases, at no extra cost to you. Affiliate links never affect our specs or which lenses we compare.

FAQ

What's the difference between the 7Artisans AF 40mm f/2.5 Lite and the Viltrox AF 28mm f/4.5?
The 7Artisans AF 40mm f/2.5 Lite is 40mm f/2.5 prime, full-frame; the Viltrox AF 28mm f/4.5 is 28mm f/4.5 prime, full-frame. Both fit the L-Mount.

Which is better in low light, the 7Artisans AF 40mm f/2.5 Lite or the Viltrox AF 28mm f/4.5?
The 7Artisans AF 40mm f/2.5 Lite — its f/2.5 maximum aperture lets in more light and gives more background blur than the f/4.5 of the other.

Do the 7Artisans AF 40mm f/2.5 Lite and Viltrox AF 28mm f/4.5 fit the same camera?
Yes — both are L-Mount lenses, so they fit Panasonic Lumix S, Leica SL, and Sigma fp full-frame bodies (the L-Mount Alliance).

Citing these specs? Go ahead — manufacturer data, last verified 2026-09-01. Copy a ready-made reference:

More L-Mount comparisons: Leica SL 50mm f/2 APO-Summicron vs Sigma 50mm f/1.2 DG DN Art · Panasonic Lumix S 100mm f/2.8 Macro vs Panasonic Lumix S 85mm f/1.8 · 7Artisans AF 40mm f/2.5 Lite vs TTArtisan AF 40mm f/2 · 7Artisans AF 135mm f/1.8 vs Sigma 135mm f/1.4 DG Art · all L-Mount lenses · all comparisons

7Artisans AF 40mm f/2.5 LiteAffiliate linkSee price on Amazon

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