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HD Pentax-D FA 28-105mm F3.5-5.6 ED DC WR Review RSS Feed

HD Pentax-D FA 28-105mm F3.5-5.6 ED DC WR

Sharpness 
 8.9
Aberrations 
 8.6
Bokeh 
 8.2
Autofocus 
 9.4
Handling 
 9.6
Value 
 9.4
Reviews Views Date of last review
24 68,046 Tue October 9, 2018
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Recommended By Average Price Average User Rating
92% of reviewers $506.47 9.14
HD Pentax-D FA 28-105mm F3.5-5.6 ED DC WR

HD Pentax-D FA 28-105mm F3.5-5.6 ED DC WR
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HD Pentax-D FA 28-105mm F3.5-5.6 ED DC WR
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Description:

The HD Pentax-D FA 28-105mm F3.5-5.6†ED†DC WR†zoom lens was announced in†February 2016†as a kit lens for the Pentax K-1†full frame DSLR which was launched at the same time.

On a full frame the field of view covers a very useful range for a walk around lens. The lens can also be used on DSLRs with an APS-C size sensor; here the field of view goes from†standard lens†to telephoto.

The lens features nine rounded diaphragm blades for smooth Bokeh and it has a number of seals making it weather resistant.†The front element is†SP coated which helps repel water drops and grease,†Other features are Quick Shift and a "window" in the lens hood which makes it easy to rotate a polarizing filter when one is attached.

The lens has a built-in†DC autofocus motor and no provision for screw drive autofocus. Autofocus is thus available only with the K10D and K100D Super, and all newer cameras. The lens has no aperture ring and is primarily intended for use on DSLR cameras. It can be used, though,†on†film cameras that have P and Tv automation or where the aperture can be controlled by an e-dial. On film cameras focusing is manual only.

At 440 g/15.5 oz†the lens is relatively light without being flimsy.


HD Pentax-D FA 28-105mm F3.5-5.6 ED DC WR
© www.pentaxforums.com, sharable with attribution
Image Format
Full-frame / 35mm film
Lens Mount
Pentax K
Aperture Ring
No
Diaphragm
Automatic, 9 blades (rounded)
Optics
15 elements, 11 groups
Mount Variant
KAF3
Check camera compatibility
Max. Aperture
F3.5-5.6
Min. Aperture
F22-38
Focusing
AF (in-lens motor)
DC
Quick-shift
Yes
Min. Focus
50 cm
Max. Magnification
0.22x
Filter Size
62 mm
Internal Focus
Yes
Field of View (Diag. / Horiz.)

APS-C: 53-15.5 ° / 46-13 °
Full frame: 75-23.5 ° / 65-19 °
Hood
PH-RBC62
Case
S80-120
Lens Cap
O-LC62
Coating
HD,SP
Weather Sealing
Yes (WR)
Other Features
Diam x Length
73 x 86.5 mm (2.9 x 3.4 in.)
Weight
440 g (15.5 oz.)
w/ Hood: +24g
Production Years
2016 to present (in production)
Pricing
$496 USD current price
Engraved Name
HD Pentax-D FA 1:3.5-5.6 28-105mm ED DC WR
Reviews
User reviews
In-depth review
Notes
This is a very reasonably priced starter lens for the K-1

Features:
Supersonic AutofocusQuick ShiftWeather SealedInternal FocusingAutomatic ApertureFull-Frame Support
Purchase: Buy the HD Pentax-D FA 28-105mm F3.5-5.6 ED DC WR
In-Depth Review: Read our HD Pentax-D FA 28-105mm F3.5-5.6 ED DC WR in-depth review!
Sample Photos: View Sample Photos



Add Review of HD Pentax-D FA 28-105mm F3.5-5.6 ED DC WR Buy the HD Pentax-D FA 28-105mm F3.5-5.6 ED DC WR
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Sort Reviews by: Date | Author | Rating | Recommendation | Likes (Descending) Showing Reviews 1-15 of 24
Veteran Member

Registered: June, 2009
Location: Chicago Suburbs.
Posts: 500
Lens Review Date: October 9, 2018 I can recommend this lens: Yes | Price: $496.95 | Rating: 9 

 
Pros: WR, compact and sturdy, consistent performance across frame on APS-C, Quick-Shift, coatings, DC motor
Cons: plastic build, focal range can be awkward for some users
Sharpness: 9    Aberrations: 9    Bokeh: 8    Autofocus: 9    Handling: 9    Value: 10    New or Used: New    Camera Used: K3   

Back in the day when everyone saw only in black&white, the 35-135mm zoom was a great compromise between bulk and focal range. Same with this lens. The 35mm equivalent is 42-157mm but with performance using the latest technologies. This lens is engineered for full frame resolution and that performance works well on the 24 mp APS-C's with "sweet-spot" consistent resolution, aberrations, coma, vignetting, etc across the whole APS-C frame.

Of course, it is not as good as primes. But now with software and optional pixel-shifting, one can use this consistently-above-average-performing lens when doing software enhancements without worrying about over-sharpening one area more than another (with its ugly crystallizing appearance - have you seen old movies redone digitally and oversharpened - yuck!). Simple to automate with scripts and you know what you are going to get as file output.

It is not a perfect lens. But for me, it is a perfect "35-135" equivalent zoom with greater performance than any of those older lenses. The normal - mid telephoto range can be awkward if you are used to Super Zooms that cover 18-200mm but only have average performance. This lens beats all of those within its range. And if I really wanted a zoom with reach, I would use a (heavy, bulky) 70-200mm.

I have also learned that I do not like a nominal wide angle zoom. I find 16mm on APS-C to be too narrow at times. I really want to PLAY in that space much more when I have in mind (perceive) a series of shots made at wide angle. So, paired with this lens and, say, the 12-24mm, I find I have a perfect combo that lets me play in the space I want at the wide end and then switch back to normal-telephoto mode. The 28mm setting on this lens also lets my feet do some of the "zooming" if I have to move back a little.

This is just a handheld unprocessed photo (and only an inferior screenshot!). The software-processed one will look much better.
   
Site Supporter

Registered: December, 2009
Location: Christchurch, New Zealand
Posts: 1,310
Lens Review Date: August 26, 2018 I can recommend this lens: Yes | Price: $600.00 | Rating: 9 

 
Pros: Great IQ for the money, relatively compact, rugged and WR, low CA and low flare, nice colours, useful FF focal range
Cons: Fairly slow, distortion, viginetting
Sharpness: 9    Aberrations: 8    Bokeh: 7    Autofocus: 9    Handling: 9    Value: 10    New or Used: New    Camera Used: K-1   

Price is higher because its from a local NZ supplier and so includes taxes etc.

Love this lens for its its relatively compact size and excellent performance to cost ratio. Its in my bag most of the time - especially when travelling fairly light. Very happy with the images it delivers - in fact in terms of sharpness its pretty close to many of my old FA primes.
Bokeh is respectable too although limited a bit by max aperture.

Even more useful when travelling as its not too big or heavy.

Samples:
   
Pentaxian

Registered: April, 2013
Location: Pittsburgh, PA
Posts: 395
Lens Review Date: August 24, 2018 I can recommend this lens: Yes | Price: $400.00 | Rating: 10 

 
Pros: Lightweight, sharpness, wr
Cons: Would have been nicer for it to have been a few mm wider
Sharpness: 8    Aberrations: 9    Bokeh: 9    Autofocus: 9    Handling: 10    Value: 10    New or Used: Used    Camera Used: K-1   

If you own a K-1, you need this lens. I've had not problems trusting it to some critical photo shoots - ones that were possibly once in a lifetime opportunities. It feels like a lens that should cost 2x or 3x as much as it does. For hiking, general nature photography, and other outdoor photography this is a must have.







   
Loyal Site Supportaxian

Registered: September, 2013
Location: Texas
Posts: 469
Lens Review Date: August 6, 2018 I can recommend this lens: Yes | Price: $380.00 | Rating: N/A 

 
Pros: Sharpness, color rendering, size, handling.
Cons: Vignetting

This is a home-run of a consumer zoom.


It delivers everything but high speed and bokeh in a moderately priced, moderately sized package. It's the perfect K-1 walk-around lens.


I stopped using my 18-135 on my K-01 and started using this instead. The increase in image quality was well worth the reduction in zoom range.


It absolutely trounces on film-era zooms. I resoundingly recommend it!
   
New Member

Registered: December, 2017
Posts: 7

1 user found this helpful
Lens Review Date: August 6, 2018 I can recommend this lens: Yes | Price: $450.00 | Rating: 10 

 
Pros: Value, sharpness, versatility, handling
Cons: None
Sharpness: 9    Aberrations: 8    Bokeh: 8    Autofocus: 9    Handling: 10    Value: 10    New or Used: New    Camera Used: K1   

The foundation of my system, this lens is almost annoyingly good. I have the 77mm and 43mm Limiteds (and love them), but they rarely knock this lens off my mount.


It's wonderfully sharp for a zoom. I can carry it around all day; it's perfect for travel and hiking. I can use it to shoot landscapes or flowers or cats. It may not have the artistically sublime bokeh and color rendition of the Limiteds, but it still performs nicely in those regards while autofocusing and handling flare/aberrations a bit more adeptly. Obviously not as capable in low-light as the f/2.8 zooms.


If you are getting a K1, start with this. It really is the perfect walk-around lens.
   
Site Supporter

Registered: April, 2015
Location: Wisconsin, USA
Posts: 1,831
Lens Review Date: May 18, 2018 I can recommend this lens: Yes | Price: $330.00 | Rating: 8 

 
Pros: Close focus, great colors, good contrast, WR, fast/accurate auto-focus
Cons: vignetting at wide apertures, sharpness at extremes of zoom
Sharpness: 8    Aberrations: 9    Bokeh: 7    Autofocus: 9    Handling: 8    Value: 9    New or Used: New    Camera Used: k1   

.
Light, WR, fast and accurate auto-focusing. Nice contrast and colors. Focuses close too.

Vignettes at widest apertures.

Only average sharpeness at extremes of zoom range. Good sharpness from around 40mm - 80mm!

I find that it's the best overall at f/5.6 and f/8. Big drop off in quality at f/11 and above.

Overall, very good value for the money.
   
New Member

Registered: May, 2017
Posts: 6

1 user found this helpful
Lens Review Date: April 13, 2018 I can recommend this lens: Yes | Price: N/A | Rating: 8 

 
Pros: Centre sharpness, colours, focus speed and accuracy
Cons: Sharpness issues outside of central area , cost per performance
Sharpness: 8    Aberrations: 8    Bokeh: 9    Autofocus: 10    Handling: 8    Value: 7    New or Used: New    Camera Used: K-1   

I tend mainly to use just primes and this is the first zoom lens that i've purchased in years.

I was drawn to it by the many excellent reviews and a desire at times to just carry a one lens combo instead of a bag full of primes.

Unfortunately I think primes have spoilt me over the years. Centre sharpness on this lens is great but at all focal lengths even stopped down the lens shows it's weaknesses outside of the central area. I'd be happy to use it for holiday captures but for anything more serious it wouldn't be my go to lens. Overall a disappointment as I'd heard such goods things about it.
   
New Member

Registered: January, 2018
Location: Paris
Posts: 8

1 user found this helpful
Lens Review Date: January 26, 2018 I can recommend this lens: Yes | Price: N/A | Rating: 9 

 
Pros: Such a high grade entry level kit zoom, IQ, colors, size, handling
Cons: Not 24 135 F4 !
Sharpness: 9    Aberrations: 9    Bokeh: 8    Autofocus: 9    Handling: 10    Value: 10    New or Used: New    Camera Used: K1 k5   

Similar look and nice handling than 18-135 on my k5 but the comparaison stops here.
Much much better IQ among the whole frame within the whole range.
With the 18\135 always have to shoot at F8 mini To have a nice IQ (although still shitty extreme corners ...). In fact except within the short range of 24 to 50mm (very good across the whole frame here) it was just a good zoom for holidays.

This one at 4,5 on 28 itís already very good for example. F8 sharp corner to corner



I find no weakness among the whole range ( except less brillant at 105 but already nothing to compare with the 135)
The size and use are great, Wr etc....AC no problem.
In fact I wish itís not a constant F4 with the same size, such a killer but iam dreaming lol...always want more.....

With 3 or 4 specialised primes more in your bag you can go shooting almost everything with confidence and great results
A very high quality kit zoom
Absolutely no regret of the dfa 24-70 30kg tank small range...

rainy day
   
Senior Member

Registered: April, 2009
Location: Norway
Posts: 229

2 users found this helpful
Lens Review Date: November 30, 2017 I can recommend this lens: Yes | Price: N/A | Rating: 10 

 
Pros: Size, reach, sharpness, weight, price
Cons: None
Sharpness: 10    Aberrations: 9    Bokeh: 8    Autofocus: 10    Handling: 10    Value: 10    New or Used: New    Camera Used: Pentax K1   

When I purchased the K1, I had to choose between the D-FA 24-70mm and the D-FA 28-105mm standard zoom lenses. I chose the latter. I had three reasons for choosing the D-FA 28-105mm; size, reach and price. I have never regretted my decision. And after reading reviews of both the D-FA 24-70mm and the D-FA 28-105mm I really feel I made the right choice. It is a terrific walkabout and travel lens.

The image was captured with the following settings:

Handheld pointing straight up (which makes it even harder because of an uncomfortable posture)
105mm
ISO800
f5.6
1/13s

Inside the St. Peters Basilica in Rome. The small dome In front of the Michelangelo sculpture.

   
New Member

Registered: September, 2017
Posts: 7
Lens Review Date: November 24, 2017 I can recommend this lens: No | Price: N/A | Rating: N/A 

 
Pros: quick to focus
Cons: it broke
New or Used: New   

I have had this lens and treated it well for 4 months.
The zoom is sticky, sometimes completely hanging up. I think something has come loose inside. a gentle shaking and I can hear a rattle.
   
Junior Member

Registered: November, 2016
Location: Vungtau
Posts: 36

1 user found this helpful
Lens Review Date: November 23, 2017 I can recommend this lens: Yes | Price: $450.00 | Rating: 9 

 
Pros: Sharpness, lightweight, price and WR.
Cons: Aparture?
Sharpness: 10    Aberrations: 9    Bokeh: 10    Autofocus: 9    Handling: 10    Value: 10    New or Used: Used    Camera Used: K-1   

light weight, sharp all length focal, good for travelling...
   
Veteran Member

Registered: July, 2007
Location: North West UK
Posts: 378

4 users found this helpful
Lens Review Date: July 31, 2017 I can recommend this lens: Yes | Price: $600.00 | Rating: 10 

 
Pros: Stupidly good lens. IQ, CA control, sharpness, size, AF, Sealing
Cons: Would have been nice if it was 24mm at the wide end and a constant F4
Sharpness: 10    Aberrations: 9    Bokeh: 9    Autofocus: 10    Handling: 10    Value: 10    New or Used: New    Camera Used: K-1 K-3II   

This is a gem of a lens. It replaced my old (and stolen) SMC-F 35-105mm F4-5.6 which in itself was a real beauty on the K-1.

Upsides?
Sharpness
Snappy AF
weather sealing
Colour rendition
silent
Size
I can't believe this is considered the "Kit" lens.

Downsides?
Well, it would have been nice if it was 24mm at the wide end.
Also, A constant F4 would have good too (to match the CaNikons)
There is some vignetting at 28mm and F3.5 but a lot of lenses have vignetting wide open. Use it creatively or get rid in PP. It is not a problem.

It is a real gem, and worth having in the kit bag, especially if you have a K-1.
   
Senior Member

Registered: December, 2015
Location: Brisbane, Australia
Posts: 134

3 users found this helpful
Lens Review Date: March 12, 2017 I can recommend this lens: Yes | Price: $490.00 | Rating: 9 

 
Pros: Stupidly good optics, surprisingly sturdy, redefines the concept of a 'kit lens'
Cons: Vignettes, 28mm* is a little 90's.
New or Used: New    Camera Used: K-1   

My, how far we have come. This little beauty leaves every consumer lens from the film era for dead. Even the FA* 28-70 is left behind on IQ by this little gem (though obviously that lens is much faster). Hell, that Canon and Nikon can't produce a kit lens this good should leave them hanging their heads in shame.

I'm going to call it - this is the lens every K-1 owner should have. The only travel lens that will beat it is what ever Pentax comes up with to replace it.

Optically it is stunning. Based on size and convinience it is often compared to the DA 18-135, but it is more the peer (better even) of the excellent DA 16-85. It looses a bit at each end of the zoom range, but gains in across the board sharpness. Apart from vignetting, aberrations are non-existent - and in the era of digital developing, that is easy to fix. Distortion is well handled, what presents at the wider focal lengths is taken care of by the lens profiles.

Build and handling is great. The WR means it pumps air, but no worse than any other WR zoom. It is surpringly compact for a full-frame zoom, especially with this level of optical quality - there Pentax engineers here really outdid themselves. It lacks the aesthetics of a * lens, but never feels flimsy. Nothing rattles or wobbles that shouldn't, and it feels smooth and solid in hand. Pinch cap and lens hood are standard Pentax fare, and are perfectly good.

The downsides? Well, there is the vignetting, but that is trivial to correct. With the push for more width in the digital era, and the computer aided design process which allows this, 28mm is a bit disappointing - but I found with distortion correction off it was wider that other 28mm lenses, but not as wide as 24mm. I put the 'real' width at about 26mm, with distortion correction bringing it back closer to 28mm. Still, widening to 24mm would be a clear starting point for any successor lens. Bokeh is decent, but the slow aperture mean you have to work for it. Luckily the optical performance wide open means you can have your cake and it it too - bokeh + sharpness. The variable aperture could be considered a 'meh', but for a compact zoom under $600 you expect it to be the case - that said, it really isn't that much a draw back, we have advanced considerably since the days of ISO 400 film.

To call this a kit lens is to take the concept of a kit lens to a whole new level. Nothing about this screams cheap-consumer-zoom. The build is fantastic, the optical engineering without peer in this lens class, only the slow aperture holds it down - and with the excellent ISO capabilities of the K-1 all you really miss out is on bucket loads easy bokeh. And all at a price which leaves it as an obvious must buy.

To the engineers behind this lens (and the DA 16-85), keep doing what you do - we want more of these amazing zooms! To Ricoh, give them a pay rise, they deserve it. Then get them on that afforadable telezoom, and a set of f4 'prosumer' zooms. While you are at it, you really need to advertise the optics you are putting out under the Pentax brand - your recent inhouse designs have been amazing.
   
Junior Member

Registered: August, 2009
Location: Netherlands
Posts: 31

5 users found this helpful
Lens Review Date: February 10, 2017 I can recommend this lens: Yes | Price: $600.00 | Rating: 9 

 
Pros: Sharpness, colours, AF accuracy, reliability
Cons: Could have been wider
Sharpness: 9    Aberrations: 8    Bokeh: 8    Autofocus: 10    Handling: 10    Value: 10    New or Used: New    Camera Used: K-1   

This is an excellent lens for the K-1. I have an extensive collection of primes and prefer to use those but often a versatile zoom is more practical, especially on days away or on holiday with the family. This lens is excellent for that.

Below there is one negative review. I am not sure whether in that case the lens was at fault or some other error was there but obviously that experience is an outlier and not representative of my experience, which actually compares well to the reviews here and elsewhere.

My opinion is that the colours are excellent. A main downside is vignetting but that is easily corrected in post processing. Other aberrations are neglectable. Out of focus rendering and bokeh is not exceptianal but its totally fine and never disturbing. AF has for me been fast and extremely reliable.

Sharpness is really very good; much better than you would expect from a Ďstandardí prime. Iíve also had the DA 18-135mm and this is much better. It is also better than than the DA 16-85mm, which Iíve also had.

Overal ďreliableĒ is the right word for this lens; it delivers the goods. It is not extremely bright and oftentimes one would hope it could be 4mm wider but really what this lens does, it does very well in a predictable and reliable fashion. There is no pixie dust that the best primes produce but at the end of the day most of my keepers from 2016 have been made with the lens because it is there to captures the moments. I payed full retail price at release and have no regrets.
   
Pentaxian

Registered: August, 2011
Location: Melbourne
Posts: 1,650

9 users found this helpful
Lens Review Date: December 4, 2016 I can recommend this lens: Yes | Price: $500.00 | Rating: 9 

 
Pros: Very sharp and clean images, reasonable size and price
Cons: vignetting
Sharpness: 10    Aberrations: 9    Bokeh: 9    Autofocus: 10    Handling: 10    Value: 9    New or Used: New    Camera Used: K-1   

This is the sort of FF zoom I would have liked to see more of from Pentax to accompany the K-1. It's optical performance is exemplary, apart from strong vignetting. In many ways, it is reminiscent of the excellent DA 16-85, which is high praise.

I could have wished for a wider short end, 24mm would have been ideal, but that would have been a different lens. The modest variable aperture marks it as "consumer-ish" rather than "professional", but is worth it in exchange for compactness and a reasonable price. The other fast DFA zooms released around the same time (15-30, 24-70, and 70-200) are all immense and not what you want to carry all the time. The IQ is a good couple of notches above "consumer" in any case.

I note that some people are fixated on its significant vignetting. Get over it! It's not a big deal. Two seconds to fix in LR if you must, though in practice I rarely feel the need. (See my post here to compare vignetting corrected and uncorrected.) This sort of behaviour is very common in FF zooms anyway.

This is my "everyday" lens on the K-1. Very suited to travel. I give it a 9, but in reality 9.5 is more where I think it sits.

Click on any of the first four for full size images.

105mm, f/7.1


31mm, f/5.6


45mm, f/11


28mm, f/8


80mm, f/8


40mm, f/11


68mm, f/8


105mm, f/11


28mm, f/8


105mm, f/8
Add Review of HD Pentax-D FA 28-105mm F3.5-5.6 ED DC WR Buy the HD Pentax-D FA 28-105mm F3.5-5.6 ED DC WR



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