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Pentax 26785 SMCP-FA645 300mm F5.6 ED (IF) Lens — main product image
Pentax

Pentax 26785 SMCP-FA645 300mm F5.6 ED (IF) Lens

Capture Stunning Medium Format Images with the PENTAX SMCP-FA645 300mm LensUnlock the full potential of your PENTAX 645 medium format camera with the PENTAX SMCP-FA645 300mm lens. This lens delivers exceptional image quality and sharpness, making it an ideal choice for professional photographers....

$848.00*$1,207.03Save 29%
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

Capture Stunning Medium Format Images with the PENTAX SMCP-FA645 300mm Lens

Unlock the full potential of your PENTAX 645 medium format camera with the PENTAX SMCP-FA645 300mm lens. This lens delivers exceptional image quality and sharpness, making it an ideal choice for professional photographers.

  • Lens: PENTAX SMCP-FA645 -300 mm 150 F5.6ED(IF)

Key Features

PENTAX SMCP-FA645 -300 mm 150 F5.6ED(IF)

Specifications

Brand
Pentax
Model
SMCP-FA645
Focal Length
300mm
Aperture
F5.6
Lens Type
ED (Extra-low Dispersion)
Focusing Mechanism
IF (Internal Focus)

Pros & Cons

👍 Pros

  • This lens is specifically designed for the Pentax 645 camera system, ensuring compatibility.
  • The 300mm focal length provides significant reach for distant subjects, making it suitable for wildlife or sports photography.
  • The F5.6 aperture allows for decent light gathering capabilities and depth of field control at this focal length.
  • The ED (Extra-low Dispersion) glass elements likely help to reduce chromatic aberrations, improving image quality.
  • The IF (Internal Focus) mechanism typically means the front element does not rotate during focusing, which is beneficial for filter use.

👎 Cons

  • With an aperture of F5.6, this lens may not perform optimally in very low-light conditions compared to faster lenses.
  • The lens is designed for the 645 medium format system, which might limit its versatility for users of other camera formats.
  • The fixed 300mm focal length means there is no zoom capability, requiring physical repositioning for framing adjustments.
  • Specific details about the lens's weight, dimensions, or construction materials are not provided, which can be a factor for portability.
  • There is no mention of image stabilization, which could be a consideration for handheld shooting at 300mm.

Frequently Asked Questions

This lens is designed for the Pentax 645 medium format camera system.
The focal length of this lens is 300mm.
The maximum aperture of this lens is F5.6.
Yes, it incorporates ED (Extra-low Dispersion) glass elements, which typically help to improve image quality.
The Internal Focus (IF) mechanism means the lens length generally remains constant and the front element does not rotate during focusing, which is convenient for using polarizing or graduated filters.

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