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Pentax Lens Review Database » Pentax 645 Medium Format Lenses » 645 Zoom Lenses
SMC Pentax-FA 645 45-85mm F4.5 Review RSS Feed

SMC Pentax-FA 645 45-85mm F4.5

Sharpness 
 9.6
Aberrations 
 9.2
Bokeh 
 8.3
Handling 
 9.2
Value 
 9.6
Reviews Views Date of last review
18 97,963 Thu August 4, 2022
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Recommended By Average Price Average User Rating
100% of reviewers $809.70 9.44
SMC Pentax-FA 645 45-85mm F4.5
supersize


Description:

Autofocus zoom reaching from wide angle to normal focal length. It is a versatile lens for landscape as well as general photography and it replaces three prime lenses, 45mm, 55mm, and 75mm.


smc Pentax-FA 645 45-85mm F4.5
© www.pentaxforums.com, sharable with attribution
Image Format
645 film
Lens Mount
Pentax 645
Aperture Ring
Yes (A setting)
Diaphragm
Automatic, 8 blades
Optics
11 elements, 9 groups
Mount Variant
645 AF
Check camera compatibility
Max. Aperture
F4.5
Min. Aperture
F32
Focusing
AF (screwdrive)
Quick-shift
No
Min. Focus
50 cm
Max. Magnification
0.22x
Filter Size
77 mm
Internal Focus
No
Field of View (Diag. / Horiz.)

645 Digital: 63-36 ° / 52-29 °
645 Film: 75-45 ° / 64-37 °
Hood
PH-RBD 77
Case
S130-160
Lens Cap
Plastic clip-on
Coating
SMC
Weather Sealing
No
Other Features
Push-pull AF/MF Focusing Ring
Diam x Length
85 x 99.5 mm (3.35 x 3.9 in.)
Weight
870 g (w/o attachments) (30.7 oz.)
Production Years
(in production)
Pricing
$2399 USD current price
Engraved Name
smc PENTAX-FA 645 ZOOM 1:4.5 45-85mm
Product Code
26725
Reviews
User reviews

Features:
Screwdrive AutofocusAperture RingAutomatic ApertureMedium-Format SupportAdapter needed for DSLRs
Purchase: Buy the SMC Pentax-FA 645 45-85mm F4.5
Price History:



Add Review of SMC Pentax-FA 645 45-85mm F4.5 Buy the SMC Pentax-FA 645 45-85mm F4.5
Author:
Sort Reviews by: Date | Author | Rating | Recommendation | Likes (Descending) Showing Reviews 16-18 of 18
New Member

Registered: March, 2011
Location: arlington va
Posts: 18

2 users found this helpful
Review Date: April 4, 2011 Recommended | Price: $1,400.00 | Rating: 10 

 
Pros: sharp, color, contrast, great lens hood
Cons: heavy

i agree that it is heavy

however, it is worth it

for years i used a 45mm, 55mm, and 150mm for the few events and weddings i would shoot each year

once i started using the 45mm-85mm and saw the results, i was hooked

yes, it does have some distortion at the wide end, but not much, and it *is* sharper than the 45mm prime
   
Pentaxian

Registered: February, 2010
Location: Eerbeek
Posts: 1,857

3 users found this helpful
Review Date: November 11, 2010 Recommended | Price: $450.00 | Rating: 10 

 
Pros: sharp, excellent colour rendition
Cons: heavy; bit slower than primes
Sharpness: 10    Aberrations: 9    Bokeh: 9    Handling: 10    Value: 10   

Briefly though inexpertedly compared this lens to the 2.8/55 and 2.8/75mm A-lenses via an adapter (and that also indicates the restrictions, because the borders were not used on my dslr). But it tends to confirm what I sensed without direct comparison on film. This lens has a nicer colour capture than its fixed lens counterparts. It is very sharp, too. If I do not need f2.8, I'd choose this lens.

Disadvantage? It is heavy. Yes, heavy enough to wonder whether I would not take the 2.8/55 and 75mm instead.
Edit: I have used this lens for longer now and sold my 55mm. Keeping the 75mm as a lightweight option.

I'd give it 9.5 if that were an option. I have not compared this lens rigorously enough to the 75mm primes to give a balanced opinion but I choose between them not on performance but convenience. The overall impression is very good. All of this applies to the 645N film camera.
   
Site Supporter

Registered: December, 2007
Location: Norway
Posts: 4,371

2 users found this helpful
Review Date: March 20, 2008 Recommended | Rating: 9 

 
Pros: Optical quality, Built quality
Cons: Size and weight

An extraordinarily good zoom lens with fine built quality; all metal. Some vignetting wide open and slight distortion. Optically it outperforms the FA 45/2.8 prime lens.
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