Samyang

Samyang SY50M-P 50mm f/1.4 Prime Lens Pentax DSLR

f/1.4

Capture Stunning Images with Precision OpticsThe Samyang SY50M-P 50mm F1.4 lens is a high-performance prime lens designed for Pentax DSLR cameras, delivering exceptional image quality and versatility. Focal Length: 50mm Aperture: F1.4 Format Compatibility: Full Frame Mount: P...

$438.97*
In Stock on Amazon.com
View on Amazon

*Price sourced from Amazon.com. Last updated:Jul 13, 2026.Price and availability are subject to change.

Affiliate Disclosure: Studio Supplies may earn a commission from qualifying purchases made through links on this page, at no additional cost to you. This helps support our editorial team.

Notice a mistake? Let Us Know

Overview

Capture Stunning Images with Precision Optics

The Samyang SY50M-P 50mm F1.4 lens is a high-performance prime lens designed for Pentax DSLR cameras, delivering exceptional image quality and versatility.

  • Focal Length: 50mm
  • Aperture: F1.4
  • Format Compatibility: Full Frame
  • Mount: Pentax DSLR
  • Type: Standard Fixed Prime Lens

Key Features

High performance, fast F1.4 aperture, "standard" 50mm prime lens with Full Frame Sensor Coverage

Specialized Ultra Multi-Coating (UMC) improves light transmission and reduces ghosting and flare

Internal Focusing design (IF) provides non rotating 77mm filter threads and close focusing to 17.7 Inches

Hybrid Aspherical and Aspherical lens elements control aberrations for clear and color-accurate images

Equipped with an 8 Blade Circular Diaphragm for pleasing Bokeh and a large rubberized focusing ring for quiet and silky smooth control of focus

Specifications

Focal Length
50mm
Aperture
f/1.4
Lens Type
Prime
Sensor Coverage
Full Frame
Coating
Specialized Ultra Multi-Coating (UMC)
Focusing Type
Internal Focusing (IF)
Filter Thread Size
77mm
Close Focusing Distance
17.7 Inches
Lens Elements
Hybrid Aspherical and Aspherical
Diaphragm Blades
8 (Circular)
Mount
Pentax DSLR

Pros & Cons

👍 Pros

  • Offers a fast F1.4 aperture, providing excellent low-light performance and shallow depth of field.
  • Designed as a "standard" 50mm prime lens, ideal for a wide range of photography styles.
  • Features Full Frame Sensor Coverage, making it compatible with high-resolution full-frame cameras.
  • Utilizes Specialized Ultra Multi-Coating (UMC) to reduce ghosting and flare for clearer images.
  • Internal Focusing (IF) design ensures the 77mm filter threads do not rotate, convenient for polarizing filters.
  • Equipped with an 8-Blade Circular Diaphragm, producing pleasing and smooth bokeh.

👎 Cons

  • Being a prime lens, it lacks the versatility of a zoom lens and requires physical movement to adjust framing.
  • The internal focusing design, while beneficial for filter use, does not specify if it impacts focusing speed.
  • While it has a large rubberized focusing ring for smooth control, it is a manual focus lens, which may be slower than autofocus.
  • The 77mm filter thread size may require purchasing larger or specific filters if existing ones are smaller.
  • Specific weight and dimensions are not provided, which could be a factor for portability or camera balance.

Frequently Asked Questions

The lens features a fast F1.4 aperture, which is excellent for low-light photography and creating appealing background blur (bokeh).
Yes, this Samyang lens offers Full Frame Sensor Coverage and is designed for Pentax DSLR cameras.
It uses Specialized Ultra Multi-Coating (UMC) to improve light transmission and reduce instances of ghosting and flare.
The lens can focus as close as 17.7 inches, allowing for detailed close-up shots.
No, the Internal Focusing (IF) design ensures that the 77mm filter threads remain non-rotating, simplifying filter use.
Equipped with an 8-Blade Circular Diaphragm, the lens is designed to produce pleasing and smooth bokeh effects.
Yes, it incorporates Hybrid Aspherical and Aspherical lens elements to control aberrations and deliver clear, color-accurate images.