Pentax-D FA 645 55mm f/2.8 AL[IF] SDM AW Lens

Model #26350

Pentax-D Warranty - USA Version
Pentax d 26350 1
Pentax d 26350 1
How it works
  • You name the price you want to pay for a product.
  • We send your offer to a network of Certified Retailers.
  • If the retailer likes your offer, you get that price for the product.
Greentoe Guarantee
  • All Products are New and from Manufacturer Authorized Retailers
  • 30 day return policy
  • Free Shipping
    No Additional Fees

Name your price



Your Chances of Success
lowest price online $
average price online $

Your chances of success


General Information

Focal Length 55 mm
Aperture Maximum: f/2.8
Minimum: f/22
Camera Mount Pentax 645
Angle of View @ Infinity 65°
Minimum Focus Distance 1.64' (49.99 cm)
Diaphragm Blades 9
Elements/Groups 9/7
Magnification 0.17x
DOF Scale Yes
Distance Scale Yes
PC Outlet No
Autofocus Yes
Tripod Collar No
Filter Thread Front: 67 mm
Weight 14.67 oz (416 g)
Dimensions Approx. 2.69 x 3.20" (68.2 x 81.3 mm)
User Reviews
1 December 2019

Picture taken @ 1/1000 sec and f/8 handheld in Aperture-priority mode. These A-series lenses are built to last a lifetime and are a delight to use.

  • +

    Sharp at middle apertures, splendid colors and contrast.

  • -

    None when used for landscapes at middle apertures.

B h photo.34921152
15 November 2016

Used with a 645z, the weather sealing and light weight make this an awesome performer in inclement weather. Fantastic contrast, sharpness and bokeh.

1 June 2013

Spectacular lens. Extremely sharp on the Pentax 645Z, great contrast, and small footprint. Great grip. Little to no flare, even shooting directly into the sun. Only minor quibble is that there is some purple fringing against bright light. Fantastic value.

7 August 2015

I gave 8 because of the sharpness decrease at corners when I focus at infinite (see below for detail). Other than that, this lens is really good. I would recommend this lens except those who frequently focus at infinite.

  • +

    Sharpness at the center

  • -

    Field curvature, CAs at the corner

B h photo.34921152
28 September 2014

That is a wonderfully sharp prime lens! Shooting on my Pentax 645z is a dream for that innate medium formate look. I would nightly recommend this as a must have in your camera bag...

29 May 2013

This lens can uses in Pentax 645D, I think it is a good lens, but the only thing I think it is not good enough is the depth of focus. Any way, this is a good lens I think. I like it.

B h photo.34921152
15 February 2016

its perfect for the new 645z. the weight is awesome for the quality.

3 September 2014

I chose the 55mm lens over the 45mm as it's a more suitable focal length for general use - aprox. 35mm equivalent rather than aprox. 28mm.

  • +

    Well built, sharp

  • -


B h photo.34921152
10 November 2011

This is the standard for the Pentax 645 D. It is sharp, has good contrast, and responds quickly to the auto focus. I have not noticed the soft corners that some reviewers have mentioned. The lens hood has a panel that can be removed to access filters. This is a nice feature.

15 May 2009

A very nice, compact and sharp wide angle. Feels solid, but not heavy. Construction is beautiful. The only drawback for me is the lack of a dedicated, rigid lens hood. I have a third party, aluminum hood for it that does not vignette, however, I am not certain if it is a perfect fit to maximize...

  • +

    Small and light weight. Fast f/2.8 aperture.

  • -

    Lack of a dedicated, rigid hood.

Product Highlights
  • Standard Lens Equivalent to 43.5mm
  • Dustproof and Weather-Resistant
  • Aero Bright Coating to Prevent Flare
  • Rounded Diaphragm for Beautiful Bokeh
  • Smooth, Quiet SDM Autofocus
  • SP Coating Blocks Dust and Dirt
  • Advanced Focus Options
In The Box
  • Pentax-D FA 645 55mm f/2.8 AL[IF] SDM AW Lens
  • Front and Rear Lens Caps
  • Lens Hood
  • Limited 1-Year Warranty
Still Have Questions?
We can help via Live Chat, Email or you can call us 1-888-840-0464


Please log in or sign up to continue


Validating Credit Card...

It will not be processed until the offer is accepted by a merchant.

Notifying Retailers...

Notifying our merchants and checking to see if they accept this offer.

Offer Submitted!

3-digit code in the back of your credit card