Voigtländer Color-Skopar 25mm f/4 P

Voigtländer Color-Skopar 25mm f/4 P

Among the smallest wide-angle lenses ever made for the Leica M bayonet, the Color-Skopar 25mm f/4 P is a true pancake that measures only about 30 mm long and weighs around 144 g, leaving it close to a body cap in bulk [1][2]. It arrived in 2007 as a rangefinder-coupled successor to Voigtländer's earlier screw-mount 25mm, the Snapshot-Skopar, which used a scale-focus, click-stop barrel rather than rangefinder coupling. The P version keeps the same optical formula but adds full rangefinder focusing and a redesigned M-mount barrel [1][2].

Optically the lens is a seven-element, five-group asymmetrical design using spherical glass, with a slightly concave front element [2]. The aperture runs from f/4 to f/22 in half stops and uses ten blades, which gives ten-point sunstars from point light sources [2]. Construction is almost entirely metal and glass, with an anodized aluminum barrel, a brass focusing helicoid, and a small convex focusing tab; markings are engraved and paint-filled, with the imperial scale picked out in red that can be hard to read in dim light [2]. A distinctive trait is the close focus of 0.5 m, unusually short for an M lens, but because the M coupling cannot track focus that close, the rangefinder couples only down to roughly 0.7 m and the final stretch relies on scale focusing [2]. The front ring is threaded both internally for 39 mm filters and externally for the supplied clip-free hood [2]. As with most 24mm and 25mm M lenses, it brings up the 35mm framelines on Leica M bodies rather than a closer 28mm frame, so most users add an accessory finder for accurate composition [2].

The lens was sold in black and silver finishes and existed alongside a near-identical 21mm f/4 sibling with similar specifications apart from focal length [2]. Reviewers note that the M-mount P version and the older LTM Snapshot-Skopar are optically the same, with any edge in image quality attributed to updated coatings rather than a new formula [2]. Voigtländer marketed the lens with a small bayonet hood and matching front cap, items worth confirming when buying used.

Optical qualities

Rendering For such a small and modest-aperture lens, the Color-Skopar 25mm is described as delivering a clean, transparent signature with only minor flaws revealing its simple construction [2].

Sharpness On-axis resolution and contrast are strong even wide open across much of the frame, but there is a clear drop toward the edges, with the outer fifth lacking clarity at f/4 [2]. Stopping to f/5.6 improves the outer zones, f/8 brings even performance to the edges, and f/11 is described as optimal apart from slight central softening from diffraction [2]. Sample-to-sample decentering has been observed, with one side weaker than the other [2].

Contrast and color Global and mid-level contrast are high, though microcontrast lags slightly; the color signature is described as modern and saturated, occasionally lacking subtlety in close tones but generally appealing [2].

Bokeh and transitions Despite the wide focal length and slow aperture, some subject separation is possible at close distances, and out-of-focus areas are described as reasonably smooth without obvious double-line artifacts, though the effect is limited [2].

Digital use The lens was designed for film, and on full-frame digital Leica bodies its short rear element and steep ray angles can produce color shifts, most notably a magenta or red color cast along one edge of the frame [1]. This banding is reported on the Leica M10 regardless of aperture, while the lens performs cleanly on film and behaves much better on sensors modified for rangefinder lenses [1][2]. Buyers intending to use it on digital should weigh this known limitation.

History

Development and Launch Voigtländer, as revived by Cosina, introduced the M-mount Color-Skopar 25mm f/4 P in 2007 to replace its earlier LTM 25mm Snapshot-Skopar. The earlier lens focused by a scale with click stops and was not rangefinder coupled, hence the "snapshot" name; the new version retained the optics but added rangefinder coupling and an M bayonet [1][2].

Production Evolution Two distinct versions exist, the original LTM Snapshot-Skopar and the later M-mount P model, which share the same optical design and differ mainly in mount and ergonomics, with possible coating refinements on the newer lens [2]. The lens was produced in Japan and offered in black and silver [2].

Collector Notes The lens is easily confused with its LTM Snapshot-Skopar predecessor and with the closely related 21mm f/4, so verifying the M mount, the rangefinder coupling, and the focal-length engraving matters [1][2]. The original bayonet hood, front cap, and a 39 mm filter are worth confirming, and because the barrel is anodized aluminum, scuffs can appear with heavy use [2]. Prospective digital users should be aware of the documented edge color shift before buying [1].

Sources

• [1] Leica Lenses for Normal People. Voigtlander Color Skopar 25mm f/4 review. https://www.leicalensesfornormalpeople.com/2021/02/02/voigtlander-color-skopar-25mm-f-4/
• [2] KJ Vogelius. GEAR - Voigtländer 25/4 Color Skopar. https://gear.vogelius.se/-reviews/voigtlander-skopar-25/index.html