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SMC Pentax-FA 645 80-160mm F4.5 Review RSS Feed

SMC Pentax-FA 645 80-160mm F4.5

Reviews Views Date of last review
10 64,732 Thu May 19, 2022
Recommended By Average Price Average User Rating
100% of reviewers $396.57 9.44
SMC Pentax-FA 645 80-160mm F4.5


Autofocus zoom reaching from short to medium tele. It is relatively compact and quite suitable for street photography.

smc Pentax-FA 645 80-160mm F4.5
©, sharable with attribution
Image Format
645 film
Lens Mount
Pentax 645
Aperture Ring
Yes (A setting)
Automatic, 8 blades
11 elements, 11 groups
Mount Variant
645 AF
Check camera compatibility
Max. Aperture
Min. Aperture
AF (screwdrive)
Min. Focus
100 cm
Max. Magnification
Filter Size
77 mm
Internal Focus
Field of View (Diag. / Horiz.)

645 Digital: 38-20 ° / 31-16 °
645 Film: 47-25 ° / 39-20 °
PH-RBF 77 bayonet
Lens Cap
Plastic clip-on
Weather Sealing
Other Features
Push-pull AF/MF Focusing Ring
Diam x Length
85 x 131 mm (3.25 x 5.2 in.)
1010 g (w/o attachments) (35.6 oz.)
Production Years
(in production)
$1599 USD current price
Engraved Name
smc PENTAX-FA 645 ZOOM 1:4.5 80-160mm
Product Code
User reviews

Screwdrive AutofocusAperture RingAutomatic ApertureMedium-Format SupportAdapter needed for DSLRs
Purchase: Buy the SMC Pentax-FA 645 80-160mm F4.5
Price History:

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Sort Reviews by: Date | Author | Rating | Recommendation | Likes (Descending) Showing Reviews 1-10 of 10
Site Supporter

Registered: January, 2022
Location: London
Posts: 123

3 users found this helpful
Review Date: May 19, 2022 Recommended | Price: $300.00 | Rating: 9 

Pros: Very sharp, good contrast, smooth bokeh, nice build
Cons: Slight fringing wide open (cleans up in post)
Sharpness: 9    Aberrations: 8    Bokeh: 9    Handling: 8    Value: 10    Camera Used: Fujifilm GFX50R   

I bought this lens to be used primarily for landscape photography, where I find that a mid-tele zoom is very versatile and useful to fine-tune the framing in camera.
I had read good reviews, and was hopeful, but honestly it has exceeded my expectations in terms of image quality.
It's worth the retail price new, but at the kind of prices for which it goes second-hand, it's a veritable steal!

A few sample shots:

- at 160mm, f/4.5

- at 160mm, f/16

- at 120mm, f/8

- at 135mm, f/5.6

- at 80mm, f/11
New Member

Registered: January, 2021
Location: Pianezza (Torino -Italy)
Posts: 23

2 users found this helpful
Review Date: September 23, 2021 Recommended | Rating: 9 

Pros: Sharp, solid
Cons: tripod ring is missing
Sharpness: 9    Aberrations: 9    Bokeh: 9    Handling: 8    Value: 9    Camera Used: PENTAX 645 D   

Excellent lens, with very useful focal lengths in many situations, from portrait to landscape.

The weight is commensurate with the solid structure and is not too heavy.

For use on a tripod, it would have been logical to equip it with a ring to better balance the camera and the lens.


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Loyal Site Supporter

Registered: October, 2018
Location: Quebec City, Quebec
Posts: 6,294

4 users found this helpful
Review Date: December 11, 2019 Recommended | Price: $240.00 | Rating: 10 

Pros: Very sharp, useful focal range for landscape pictures.
Cons: Front-heavy.
Sharpness: 10    Aberrations: 9    Bokeh: 9    Handling: 10    Value: 10    Camera Used: PENTAX 645Z   

1/25 sec, f/11 and 80 mm FL

1/125 sec, f/11 and 160 mm FL

1/125 sec, f/11 and 160 mm FL

1/400 sec, f/11 and 143 mm FL
This shingle roof replaces my "brick wall" for sharpness tests. This lens is very sharp when used on a tripod.
Junior Member

Registered: August, 2019
Posts: 25

5 users found this helpful
Review Date: September 24, 2019 Recommended | Rating: N/A 







Forum Member

Registered: July, 2017
Posts: 51
Review Date: August 7, 2017 Recommended | Price: $348.00 | Rating: 9 

Pros: Image quality, construction quality, cost
Cons: Boy, is it heavy :)
Sharpness: 9    Aberrations: 9    Bokeh: 9    Handling: 9    Value: 9   

As a new medium format user, my previous frame of reference is my Nikon D3s, D3x, and D800e with top of the line Nikon lenses, and my Leica's.

On the 645z, I would give this lens a solid 9 for IQ, construction, and handling. It would be nice if MF could be performed as an AF override just turning the focus ring, but it's not a priority for me. While I have seen the MF switch criticized by others, I find it easier than the Nikon equivalent. YMMV.

Purchased from Japan as my second lens, in my personal view the cost/quality component just can't be beat. AF is reasonably fast, required no AF fine tuning on my body. My specific copy exhibits good center sharpness from f5.6. Due to the sort of images I make, I don't really have an opinion regarding edge sharpness.
New Member

Registered: January, 2015
Posts: 3

1 user found this helpful
Review Date: February 19, 2015 Recommended | Price: $570.00 | Rating: 9 

Pros: Versatile, sharp, good build quality
Cons: Heavy, slow focus
Sharpness: 8    Aberrations: 9    Bokeh: 10    Handling: 9    Value: 9    Camera Used: Pentax 645Z   

I am using this lens on a 645Z and I like it a lot, though it needs special 'treatment'.
Using it wide open, results are too soft, even in the center.

Starting from f 5.6, images are becoming very good. I have linked a screenshot of a 100 percent crop, shot at 140 mm, ISO 640, f 5.6. Quality stays very good up to f 16.

I recommend using a tripod.
Forum Member

Registered: December, 2014
Location: San Francisco
Posts: 59

3 users found this helpful
Review Date: December 3, 2014 Recommended | Price: $438.00 | Rating: 10 

Pros: Handling, sharpness, focal range
Cons: Screw driven focus
Sharpness: 9    Aberrations: 9    Bokeh: 10    Handling: 8    Value: 10    Camera Used: 645Z   

This lens is almost perfect for my plans in studio. My only wish is that it was just a tad wider. I wanted to purchase a used zoom as my first for the 645Z before embarking on purchasing some of their new lenses to ascertain if the used market is worth the trouble. Much more efficient than spending 5k on my first lens.

I must have obtained a good copy since there was no need to micro adjust the lens. This was shot with a studio strobe through a parabolic umbrella. 1/125th f25, ISO 100 80mm. You can download the full res version here to peep to your heart's content.
New Member

Registered: March, 2010
Posts: 20

1 user found this helpful
Review Date: July 28, 2012 Recommended | Rating: 10 

Sharpness: 10    Aberrations: 9    Bokeh: 10    Handling: 10    Value: 10   

My appraisal is probably overly generous, but I like this lens a lot. I use it in combination with the 45-85 FA zoom lens, and Adapter 645 ( for 67II lenses). Like it's wide angle sibling, the 80-160mm short telephoto produces very sharp images, though I will usually chose faster film if I plan to work with this lens. A tripod is not out of the question either, because the lens is on the heavy side--over 2 pounds. In theory, lenses that are the same optical design and focal length will produce nearly identical prints and transparencies--but in practice they have an optical "personality". This zoom is quite affable! Distortion is minimal, and it has excellent color fidelity, definition, and bokeh. Both lenses mentioned here perform much better than expected, and I wouldn't hesitate to make 24" prints.
Senior Member

Registered: June, 2010
Location: Hamburg
Posts: 267

1 user found this helpful
Review Date: February 7, 2012 Recommended | Price: $530.00 | Rating: 10 

Pros: Tack sharp, great portrait lens
Cons: none so far

This is an amazing lens on the 645D for portraits. Tack sharp even wide open.
Site Supporter

Registered: November, 2008
Location: Washington DC, USA
Posts: 631

1 user found this helpful
Review Date: May 15, 2009 Recommended | Price: $350.00 | Rating: 9 

Pros: Solid construction, nice and sharp. Very useable range.
Cons: It is a large, long lens. A tad slow.

This is a big, long lens. Not too heavy. It is really well constructed and very sharp. The end of the lens has a wheel that allows you to rotate your filter with the lens hood on - a very handy feature. It is a fantastic zoom range for portraits of groups and individuals.
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