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Full Frame Camera Lens HD-D FA 24-70mm f/2.8 ED SDM WR Tele Zoom for K Mount Black
Camera Lenses

Full Frame Camera Lens HD-D FA 24-70mm f/2.8 ED SDM WR Tele Zoom for K Mount Black

Key features:

  • 24-70mm f/2.8 zoom range
  • For 35mm full-frame sensors
  • Constant f/2.8 aperture
  • SDM ultrasonic focusing motor
  • Weather-resistant WR protection
  • Advanced HD Coating
See full description

Top specs

  • Type

    Tele Zoom

    Telephoto lenses with zoom capability and optics that allow photography from a distance.

    Lenses with a focal length of 80-135mm on full frame, 50-75mm on crop frame, and 120-180mm on medium format are ideal for portrait photography as they allow for photography from a moderate distance and flatter the subject's features.

    Greater focal lengths are used for wildlife photography, sports events, and generally any subjects where a large distance is required.

  • Mount

    The type of mount that the camera body must have in order for the lens to be fully functional when attached to it.

    2. Some lenses can be used with older mounts from the same manufacturer, sacrificing certain functions (e.g. autofocus), or even with mounts from other manufacturers using an adapter.

  • Item

    Lenses with variable optical (zoom) that remain equally bright (same maximum aperture value) throughout the entire focal distance range they offer. Usually significantly more expensive than their variable aperture counterparts.

    Fixed Aperture Zoom

    Lenses with variable optical (zoom) that remain equally bright (same maximum aperture value) throughout the entire focal distance range they offer. Usually significantly more expensive than their variable aperture counterparts.

  • Sensor Type

    Full Frame

    Photographic lenses designed for use on full frame sensor cameras. A full frame lens can also be used on a crop frame sensor camera, but with its focal length adjusted according to the corresponding crop factor.

    For example, a full frame lens with a focal length of 50mm (standard) on a camera body with a crop factor of 1.6 will function with a perspective as if it were an 80mm lens (telephoto).

    The reverse does not work as the optics of a crop frame lens are not sufficient to cover an entire full frame sensor, resulting in the edges of the frame being black (severe vignetting).

  • Maximum Aperture (f)

    Opening the diaphragm determines the amount of light received by the camera and affects the depth of field.
    2. The most open aperture of a lens is called the maximum. The more open the aperture (smaller f-number), the shallower the depth of field.
  • Usage Landscape Photography, Video Production, Wildlife & Sports
  • See all
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Product report

Description

Description

The Pentax HD-D FA 24-70mm is a zoom lens for cameras with a Pentax K mount and a full-frame sensor. The maximum aperture of f/2.8 is maintained throughout the focal-length range, while the ED and aspherical elements help deliver images with high sharpness and contrast. The HD coating reduces reflections and ghosting.

The built-in SDM ultrasonic motor provides quiet autofocus, while the Quick-Shift system allows you to switch to manual focus after autofocus. The body is resistant to dust and weather, with sealed points, and the circular aperture helps produce smooth bokeh.

  • Focal length range: 24–70 mm
  • Maximum aperture: f/2.8
  • Minimum aperture: f/22
  • Type: Telephoto zoom lens
  • Lens category: Constant-aperture zoom
  • Sensor format: Full frame
  • Mount: Pentax K
  • Autofocus: Yes, with SDM motor
  • Image stabilization: None
  • Filter diameter: 82 mm
  • Weight: 787 g
  • Color: Black
  • Use: Landscape photography, video production, wildlife and sports

24–70mm Focal Length and Constant f/2.8 Aperture

The lens covers the classic focal range from a 24mm wide angle to a 70mm medium telephoto.
It offers an approximately 2.9x zoom ratio for 35mm full-frame sensors.
On cameras with APS-C sensors, it provides equivalent coverage from 37mm to 107mm.
It maintains a bright, constant maximum aperture of f/2.8 throughout the zoom range.
It allows you to shoot in low-light conditions without sacrificing shutter speed.
It provides ample depth of field for landscapes and interiors, as well as beautiful subject separation in portraits.

Optical Design with ED and Aspherical Elements and High MTF

The optical construction consists of 17 elements in 12 groups of high precision.
It includes three ED (Extra-low Dispersion) elements and four aspherical elements.
It also incorporates a special anomalous dispersion element to effectively eliminate aberrations.
It ensures sufficient brightness even at the edges of the image, delivering a high MTF rating.
It produces exceptionally sharp images with rich contrast and high resolution.
On modern Pentax K bodies, it makes full use of the image circle for consistent quality across the entire frame.

SDM Ultrasonic Autofocus Motor and Quick-Shift

The built-in SDM (Supersonic Motor Direct-drive) mechanism offers quiet autofocus.
It delivers high speed and smooth response when tracking moving subjects.
On compatible PENTAX K mount cameras, it works seamlessly.
It features Pentax's practical Quick-Shift focusing system.
It allows the photographer to switch instantly from autofocus to manual focus without changing a switch.
It provides precise control the moment the subject is initially locked into focus.

HD Multilayer Coating and Circular Aperture

The lens features advanced HD (High Definition) multilayer coating.
It ensures higher light transmission and significantly lower reflectivity than conventional lenses.
Effectively prevents unwanted ghosting and flare in backlit conditions.
It incorporates a circular aperture that produces smooth, natural, and soft background bokeh.
The circular geometry minimizes chromatic aberration around bright light sources.
Delivers crystal-clear sharpness and realistic color fidelity in any lighting condition.

AW Weather Sealing, WR Protection, and Zoom Lock

Features top-tier AW (All Weather) certification with advanced Weather Resistant (WR) construction.
Incorporates special sealing points that prevent water and dust from entering the interior.
Paired with a weather-resistant Pentax DSLR body, it creates a fully rugged system.
Ensures smooth and reliable operation in demanding conditions with rain or dense fog.
Includes a practical zoom lock button for safe transport.
Prevents the lens from accidentally extending when the camera is hanging face down.

Manufacturer

Manufacturer Details

Warnings & Safety Information
See full description

Specifications

Specifications

Dimensions

Type
Tele Zoom

Type

Tele Zoom

Telephoto lenses with zoom capability and optics that allow photography from a distance.

Lenses with a focal length of 80-135mm on full frame, 50-75mm on crop frame, and 120-180mm on medium format are ideal for portrait photography as they allow for photography from a moderate distance and flatter the subject's features.

Greater focal lengths are used for wildlife photography, sports events, and generally any subjects where a large distance is required.
Lens Type
Fixed Aperture Zoom

Lens Type

Lenses with variable optical (zoom) that remain equally bright (same maximum aperture value) throughout the entire focal distance range they offer. Usually significantly more expensive than their variable aperture counterparts.

Fixed Aperture Zoom
Lenses with variable optical (zoom) that remain equally bright (same maximum aperture value) throughout the entire focal distance range they offer. Usually significantly more expensive than their variable aperture counterparts.
Sensor Type
Full Frame

Sensor Type

Full Frame

Photographic lenses designed for use on full frame sensor cameras. A full frame lens can also be used on a crop frame sensor camera, but with its focal length adjusted according to the corresponding crop factor.

For example, a full frame lens with a focal length of 50mm (standard) on a camera body with a crop factor of 1.6 will function with a perspective as if it were an 80mm lens (telephoto).

The reverse does not work as the optics of a crop frame lens are not sufficient to cover an entire full frame sensor, resulting in the edges of the frame being black (severe vignetting).
Maximum Aperture (f)
2.8

Maximum Aperture (f)

Opening the diaphragm determines the amount of light received by the camera and affects the depth of field.
2. The most open aperture of a lens is called the maximum. The more open the aperture (smaller f-number), the shallower the depth of field.
Minimum Aperture (f)
22

Minimum Aperture (f)

Opening the diaphragm determines the amount of light received by the camera and affects the depth of field.

2. The smallest diameter of the diaphragm is the minimum value. The more closed the diaphragm (larger f-number), the greater the depth of field.
Filter Diameter
82 mm

Filter Diameter

The diameter that a filter must have to be applied on the lens without the use of an adapter.
Focal Length Range
24 - 70 mm

Focal Length Range

The focal length is the distance from the convergence point of the light rays inside the lens to the camera sensor. As the range increases, we have a smaller field of view.
Weight
787 gr
Mount
Pentax K

Mount

The type of mount that the camera body must have in order for the lens to be fully functional when attached to it.

2. Some lenses can be used with older mounts from the same manufacturer, sacrificing certain functions (e.g. autofocus), or even with mounts from other manufacturers using an adapter.
Colour
Black

Features & Functions

Image Stabilization
No

Image Stabilization

The lens features image stabilization function for clearer photos and videos when shooting handheld, especially in low light conditions.
Autofocus (AF)
Yes

Autofocus (AF)

The lens has an automatic focusing function. Particularly useful for photographing subjects in motion (e.g. children playing).
3D
No

3D

Lenses for creating stereoscopic images.

Usage

Device Group
Landscape Photography, Video Production, Wildlife & Sports

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

See all specifications

Description & Specifications

The Pentax HD-D FA 24-70mm is a zoom lens for cameras with a Pentax K mount and a full-frame sensor. The maximum aperture of f/2.8 is maintained throughout the focal-length range, while the ED and aspherical elements help deliver images with high sharpness and contrast. The HD coating reduces reflections and ghosting.

The built-in SDM ultrasonic motor provides quiet autofocus, while the Quick-Shift system allows you to switch to manual focus after autofocus. The body is resistant to dust and weather, with sealed points, and the circular aperture helps produce smooth bokeh.

  • Focal length range: 24–70 mm
  • Maximum aperture: f/2.8
  • Minimum aperture: f/22
  • Type: Telephoto zoom lens
  • Lens category: Constant-aperture zoom
  • Sensor format: Full frame
  • Mount: Pentax K
  • Autofocus: Yes, with SDM motor
  • Image stabilization: None
  • Filter diameter: 82 mm
  • Weight: 787 g
  • Color: Black
  • Use: Landscape photography, video production, wildlife and sports

24–70mm Focal Length and Constant f/2.8 Aperture

The lens covers the classic focal range from a 24mm wide angle to a 70mm medium telephoto.
It offers an approximately 2.9x zoom ratio for 35mm full-frame sensors.
On cameras with APS-C sensors, it provides equivalent coverage from 37mm to 107mm.
It maintains a bright, constant maximum aperture of f/2.8 throughout the zoom range.
It allows you to shoot in low-light conditions without sacrificing shutter speed.
It provides ample depth of field for landscapes and interiors, as well as beautiful subject separation in portraits.

Optical Design with ED and Aspherical Elements and High MTF

The optical construction consists of 17 elements in 12 groups of high precision.
It includes three ED (Extra-low Dispersion) elements and four aspherical elements.
It also incorporates a special anomalous dispersion element to effectively eliminate aberrations.
It ensures sufficient brightness even at the edges of the image, delivering a high MTF rating.
It produces exceptionally sharp images with rich contrast and high resolution.
On modern Pentax K bodies, it makes full use of the image circle for consistent quality across the entire frame.

SDM Ultrasonic Autofocus Motor and Quick-Shift

The built-in SDM (Supersonic Motor Direct-drive) mechanism offers quiet autofocus.
It delivers high speed and smooth response when tracking moving subjects.
On compatible PENTAX K mount cameras, it works seamlessly.
It features Pentax's practical Quick-Shift focusing system.
It allows the photographer to switch instantly from autofocus to manual focus without changing a switch.
It provides precise control the moment the subject is initially locked into focus.

HD Multilayer Coating and Circular Aperture

The lens features advanced HD (High Definition) multilayer coating.
It ensures higher light transmission and significantly lower reflectivity than conventional lenses.
Effectively prevents unwanted ghosting and flare in backlit conditions.
It incorporates a circular aperture that produces smooth, natural, and soft background bokeh.
The circular geometry minimizes chromatic aberration around bright light sources.
Delivers crystal-clear sharpness and realistic color fidelity in any lighting condition.

AW Weather Sealing, WR Protection, and Zoom Lock

Features top-tier AW (All Weather) certification with advanced Weather Resistant (WR) construction.
Incorporates special sealing points that prevent water and dust from entering the interior.
Paired with a weather-resistant Pentax DSLR body, it creates a fully rugged system.
Ensures smooth and reliable operation in demanding conditions with rain or dense fog.
Includes a practical zoom lock button for safe transport.
Prevents the lens from accidentally extending when the camera is hanging face down.

Manufacturer

Manufacturer Details

Warnings & Safety Information

Dimensions

Type
Tele Zoom

Type

Tele Zoom

Telephoto lenses with zoom capability and optics that allow photography from a distance.

Lenses with a focal length of 80-135mm on full frame, 50-75mm on crop frame, and 120-180mm on medium format are ideal for portrait photography as they allow for photography from a moderate distance and flatter the subject's features.

Greater focal lengths are used for wildlife photography, sports events, and generally any subjects where a large distance is required.
Lens Type
Fixed Aperture Zoom

Lens Type

Lenses with variable optical (zoom) that remain equally bright (same maximum aperture value) throughout the entire focal distance range they offer. Usually significantly more expensive than their variable aperture counterparts.

Fixed Aperture Zoom
Lenses with variable optical (zoom) that remain equally bright (same maximum aperture value) throughout the entire focal distance range they offer. Usually significantly more expensive than their variable aperture counterparts.
Sensor Type
Full Frame

Sensor Type

Full Frame

Photographic lenses designed for use on full frame sensor cameras. A full frame lens can also be used on a crop frame sensor camera, but with its focal length adjusted according to the corresponding crop factor.

For example, a full frame lens with a focal length of 50mm (standard) on a camera body with a crop factor of 1.6 will function with a perspective as if it were an 80mm lens (telephoto).

The reverse does not work as the optics of a crop frame lens are not sufficient to cover an entire full frame sensor, resulting in the edges of the frame being black (severe vignetting).
Maximum Aperture (f)
2.8

Maximum Aperture (f)

Opening the diaphragm determines the amount of light received by the camera and affects the depth of field.
2. The most open aperture of a lens is called the maximum. The more open the aperture (smaller f-number), the shallower the depth of field.
Minimum Aperture (f)
22

Minimum Aperture (f)

Opening the diaphragm determines the amount of light received by the camera and affects the depth of field.

2. The smallest diameter of the diaphragm is the minimum value. The more closed the diaphragm (larger f-number), the greater the depth of field.
Filter Diameter
82 mm

Filter Diameter

The diameter that a filter must have to be applied on the lens without the use of an adapter.
Focal Length Range
24 - 70 mm

Focal Length Range

The focal length is the distance from the convergence point of the light rays inside the lens to the camera sensor. As the range increases, we have a smaller field of view.
Weight
787 gr
Mount
Pentax K

Mount

The type of mount that the camera body must have in order for the lens to be fully functional when attached to it.

2. Some lenses can be used with older mounts from the same manufacturer, sacrificing certain functions (e.g. autofocus), or even with mounts from other manufacturers using an adapter.
Colour
Black

Features & Functions

Image Stabilization
No

Image Stabilization

The lens features image stabilization function for clearer photos and videos when shooting handheld, especially in low light conditions.
Autofocus (AF)
Yes

Autofocus (AF)

The lens has an automatic focusing function. Particularly useful for photographing subjects in motion (e.g. children playing).
3D
No

3D

Lenses for creating stereoscopic images.

Usage

Device Group
Landscape Photography, Video Production, Wildlife & Sports

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

Pentax