Voigtländer Nokton 50mm F1.5 MC asph. II VM — it’s widely considered one of the best value fast 50mm rangefinder lenses available today.

What makes it special

The Nokton 50/1.5 sits in a sweet spot between:

• clinical modern lenses like the Leica APO-Summicron

• character lenses like the Zeiss Sonnar 50/1.5

You get:

• very strong center sharpness even at f/1.5

• compact size for a fast 50

• rich contrast and color

• smoother rendering than many modern ASPH lenses

• excellent metal construction

Reviewers consistently praise the balance between “character” and technical performance. (Leica Rumors)

Optical performance

Wide open (f/1.5)

The lens is sharp in the center with attractive subject separation. Corners are softer and show some coma/astigmatism, especially at infinity focus distances. (Leica Rumors)

A useful way to think about it:

• Portraits/street/night shooting → excellent at f/1.5

• Landscapes/infinity detail → stop down to f/4

Bokeh

The rendering is one of the reasons people buy this lens.

Pros:

• smooth transition zones

• strong 3D pop

• classic Leica-style rendering

Cons:

• some “onion ring” highlights from the aspherical design

• slightly busy backgrounds in certain scenes

Several users prefer the newer Version II because the bokeh is calmer than the older version. (Reddit)

Flare and contrast

The newer Aspherical II handles flare much better than vintage Noktons and older Sonnar-style designs. Contrast stays high even in difficult light. (YouTube)

Build quality and handling

The lens is classic Voigtländer:

• all-metal construction

• beautifully damped focus ring

• compact enough for daily carry

• lighter than many Leica equivalents

The Version II is especially appreciated for being smaller and lighter than the older VM version. (Reddit)

Some users have reported tight or imperfect mount tolerances on certain copies, though this does not appear widespread. (Reddit)

This lens is ideal if you:

• shoot Leica M or M-adapted mirrorless cameras

• want a fast 50 without Leica Summilux pricing

• like lenses with some personality but modern usability

• shoot street, documentary, portraits, or travel

It may not be ideal if you want:

• absolute edge-to-edge perfection wide open

• autofocus

• completely neutral rendering

Verdict

The Nokton 50mm f/1.5 II is one of the best “real photographer” lenses in the M-mount ecosystem:

• compact

• fast

• tactile

• sharp enough

• characterful without being messy

Many photographers consider it the practical alternative to a Leica Summilux ASPH at a fraction of the price. The tradeoff is slightly weaker edge performance and less consistency wide open. (Leica Rumors)