Viltrox AF 25mm f/1.7

Summary

The Viltrox AF 25mm f/1.7 is a solid optical performer — a standard prime (38mm equivalent) with f/1.7 maximum aperture. The lens is priced at approximately ~$250 USD. Please check the official product page for sample images, manuals, and firmware updates.

Genre Suitability

  • Excellent for: Street, Travel
  • Adequate for: Nightscape, Landscape, Sport, Wildlife
  • Avoid for: Macro

Strengths

  • Fast linear motor autofocus

Weaknesses

  • Very soft corners wide open
  • Noticeable vignetting wide open
  • Low macro capability (0.11x magnification)

Specifications 19/20

Optical construction 12 elements in 10 groups (2 aspherical, 1 ED, 2 HR)
Coating HD Nano multilayer coating
Focal length25mm
Max aperturef/1.7
Sweet spot f/2.8
Aperture blades 9 (circular)
Sunstar points 18 (soft — circular blades)
Max magnification 0.11x
Min focus distance300mm
AF motorLM
OISNo
Weather sealedNo
Aperture ringNo
Clickless aperture
Focus ringYes
Focus by wireYes
Distance scaleNo
Rotating frontNo
Tripod mountNo
Weight155g
Diameter64mm
Length56.4mm
Filter thread46mm
Year2024

Optical Quality 10/14

Center (wide open)
1.0
Corner (wide open)
0.0
Center (stopped)
2.0
Corner (stopped)
1.0
Coma
1.0
Astigmatism
1.0
Longitudinal CA
2.0
Lateral CA
1.5
Vignetting (wide open)
0.5
Vignetting (stopped)
1.5

Sharpness

  • Acceptable center sharpness wide open
  • Very soft corners wide open
  • Outstanding center resolution stopped down
  • Acceptable corner sharpness stopped down

Aberrations

  • Virtually no longitudinal chromatic aberration
  • Well-controlled lateral CA
  • Moderate coma at the extreme corners
  • Moderate astigmatism

Rendering

  • Noticeable vignetting wide open
  • Vignetting clears well when stopped down

All optical scores are based on lab measurements and field tests from trusted review sources. For details on how we score lenses, see our scoring methodology.

Genre Fit

~ Nightscape Photography 3/5

Nightscape Photography prioritizes coma control, astigmatism correction, and a fast aperture for short star exposures.

Primary
  • Moderate coma at the extreme corners
  • Moderate astigmatism
  • Fast f/1.7 aperture
Secondary
  • Well-controlled lateral CA
  • Acceptable center sharpness wide open
  • Very soft corners wide open
  • Virtually no longitudinal chromatic aberration
  • Noticeable vignetting wide open

~ Landscape Photography 3/5

Landscape Photography prioritizes corner-to-corner sharpness at stopped-down apertures and good flare resistance.

Primary
  • Acceptable corner sharpness stopped down
  • Outstanding center resolution stopped down
Secondary
  • Well-controlled lateral CA
  • Virtually no longitudinal chromatic aberration
  • Vignetting clears well when stopped down
  • Moderate astigmatism
  • Moderate coma at the extreme corners

Street Photography 4/5

Street Photography prioritizes sharp stopped-down performance and a fast enough aperture for low light.

Primary
  • Outstanding center resolution stopped down
  • Fast f/1.7 aperture
Secondary
  • Acceptable center sharpness wide open
  • Virtually no longitudinal chromatic aberration
  • Moderate coma at the extreme corners

Travel Photography 5/5

Travel Photography prioritizes balanced image quality in a lightweight package.

Primary
  • Outstanding center resolution stopped down
  • Lightweight at 155g
Secondary
  • Fast f/1.7 aperture
  • Virtually no longitudinal chromatic aberration

~ Sport Photography 3/5

Sport Photography prioritizes sharp wide-open center performance to freeze action at fast shutter speeds.

Primary
  • Acceptable center sharpness wide open
Secondary
  • Fast f/1.7 aperture
  • Virtually no longitudinal chromatic aberration
  • Well-controlled lateral CA

~ Wildlife Photography 3/5

Wildlife Photography prioritizes center sharpness across apertures for distant subjects.

Primary
  • Acceptable center sharpness wide open
  • Outstanding center resolution stopped down
Secondary
  • Fast f/1.7 aperture
  • Virtually no longitudinal chromatic aberration
  • Well-controlled lateral CA

Macro Photography 1/5

Macro Photography prioritizes stopped-down center sharpness and high magnification for close-up detail.

Primary
  • Outstanding center resolution stopped down
  • Low magnification (0.11x)
Secondary
  • Well-controlled lateral CA
  • Virtually no longitudinal chromatic aberration

Reviews

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