Pentax M 28mm 2.8 – My Perfect Wide Lens

By Andrei Stefan

I’m just going to start this by saying that if you’re after technical specs, lenses groups serials numbers versions, focus charts and sharpness tests look elsewhere (Pentaxforums perhaps..)

As much as I like to nerd out over technicalities some time too, this post is not about that. Sure there are sharper, better, faster lenses out there, but what makes a great or, dare I say, perfect lens for you?

My journey into photography started in my early teens with an old Beirette camera I found in my grandmas cupboard. I just enjoyed the experience, the feel of the metal gearing, the shiny chrome body clockwork mechanism made me want to play with it more and more.

Years passed and I got myself a Nikon DSLR with a modern digital camera and gosh was I disappointed .

This was nothing like the idea of ‘photography ‘ I had from my youth; all magnesium, matt black, plasticky lens big screen, buttons and dials. I got used to it tho and it enabled me to record loads of memories and special moments over the years ,but there was always something lacking…

A few more years later and I moved away from my Nikon system into Fujifilm, this brought back that ‘hands on, mechanical, manual feeling. It made me enjoy the process, the experience of using the camera.

Now having a mirrorless camera opened up the door to a whole new world of opportunities in adapted vintage lenses.This brings me to today’s topic

The PENTAX M 28 mm 2.8 lens

Got this online for £20 – a few days later I received it. For a a lens made in 1980 – making it nearly half a century old now – I can say it’s in pristine condition.

Its diminutive size, lightweight build and very smooth focus and aperture controls just feel perfect on my Fuji XT 4.

The focal length works great for me. It works out about equivalent to 42mm on my crop sensor camera, so is the ‘perfect’ normal lens. This enables me to see and frame what my lens sees by closing one eye. It brings a natural perspective wide enough to get environmental shots and a few landscapes yet not too narrow as to overly flatten and compress the background. It looks natural yet has a 3D effect putting you there with the subject, any picture taken with it looks to me as I see it.

Shot wide open, you can see the background swirls a bit towards the edges (shot on APSC crop sensor)

A lens like this helps me convey the emotion, the feeling that frame I saw without filtering it or distorting the look, putting the viewer into my photographic eye, not into my camera.

Of course it’s plenty sharp even wide open even close up, not clinically sharp, not perfect, like a modern lens would look, but I’m happy with it like this as I don’t see the world with the level of detail I see in photos taken with modern lenses.

Something about it makes the picture stand out, be it micro-contrast ‘Pentax pop’ Zeiss look, I don’t know but i’m enjoying it

This lens has a ‘character’ an organic look, inexplicable yet immediately recognizable. Also it slows me down a bit, it’s not a pro 2.8 kit zoom that auto-focuses in nanoseconds, I have to think about my framing, walk to my subject, turn that smooth creamy feeling focus ring, close down the textured metal aperture ring, think of a composition and a feeling that subject makes me feel and relate that in a beautifully perfectly imperfect image.

In some instances it can give a soap bubble bokeh

It focuses rather close too, at 30cm allowing me to get some nice environmental non-macro closeup shots.

Shot wide open,the slightly lower contrast and the background blur give it a painterly look

In regards to optical defects this lens has very little, a minute amount of CA wide open, good flare resistance, I use it with a hood which seems to help the contrast a bit sometimes, but I would be very comfortable using it without also.The SMC coatings do a great job in controlling intrusive lighting.

Wide open in very harsh mid day sun light at closest focus distance

It has all the modern qualities, without any of the clinically optically perfect rendering too many modern lenses have. The look it gives, the feel of using it and the satisfaction in the results it gives make it my perfectly imperfect lens.

The lens only protrudes 31 mm out of the camera and weighs 157 g,  makes a great walk around daily lens on my Chinon.

I have recently acquired a 35mm Film SLR the great but quite unknown Chinon CE 4 to use this on film and experience the full frame field of view, which I really enjoy and look forward to post some samples from in another article reviewing this camera. Coming soon.

 

Share this post:

Find more similar content on 35mmc

Use the tags below to search for more posts on related topics:

Donate to the upkeep, or contribute to 35mmc for an ad-free experience.

There are two ways to contribute to 35mmc and experience it without the adverts:

Paid Subscription – £2.99 per month and you’ll never see an advert again! (Free 3-day trial).
If you think £2.99 a month is too little, then please subscribe and I can manually edit the subscription value for you – thank you very much in advance if this is what you would like to do!

Subscribe here.

Content contributor – become a part of the world’s biggest film and alternative photography community blog. All our Contributors have an ad-free experience for life.

Sign up here.

Make a donation – If you would simply like to support Hamish Gill and 35mmc financially, you can also do so via ko-fi

Donate to 35mmc here.

About The Author

Comments

Thorsten Wulff on Pentax M 28mm 2.8 – My Perfect Wide Lens

Comment posted: 31/05/2025

Very nice, I got one here with a Pentax MX. Which adapter did you use for the Fuji?
Reply

Leave a Reply

Your email address will not be published. Required fields are marked *

Andrei Stefan replied:

Comment posted: 31/05/2025

A cheapo 'FOTGA' One, its solid all metal and does the job perfectly

Reply

Leave a Reply

Your email address will not be published. Required fields are marked *

David on Pentax M 28mm 2.8 – My Perfect Wide Lens

Comment posted: 31/05/2025

Pick up a Pentax K-1 and really get the best of of the lens
Reply

Leave a Reply

Your email address will not be published. Required fields are marked *

Andrei Stefan replied:

Comment posted: 31/05/2025

I wouldn't leave my XT4 just yet , Maybe if a Mk.3 would come up? but gosh knows what Pentax is cooking up now.

Reply

Leave a Reply

Your email address will not be published. Required fields are marked *

Marco Dughera on Pentax M 28mm 2.8 – My Perfect Wide Lens

Comment posted: 31/05/2025

Using a focal reducer on APS-C you have the same FOV and a stop faster than film. I use my 28mm both with a dumb adapter or the focal reducer.
Reply

Leave a Reply

Your email address will not be published. Required fields are marked *

Andrei Stefan replied:

Comment posted: 31/05/2025

I've been looking at them for a while , did you find a PK-X-mount one?? Ive only seen nikon or canon and m42s.

Reply

Leave a Reply

Your email address will not be published. Required fields are marked *

Marco Dughera replied:

Comment posted: 31/05/2025

Mine is a Pixco for sony nex. On the other hand after I got it, I recall reading that the best solution is a Canon FD adapter that can be easily adapted to multiple SLR formats.

Reply

Leave a Reply

Your email address will not be published. Required fields are marked *

David Kieltyka on Pentax M 28mm 2.8 – My Perfect Wide Lens

Comment posted: 31/05/2025

I like the M and A series Pentax lenses in general. They adapt well to mirrorless cameras (I use an Urth) and are sharp & snappy without the aggressive quality I see in some modern lens designs. The Takumar series 28mms never impressed me much but the K mount 28mms are very nice. The 100mm f/2.8 is another in the series I'd recommend if you're looking for a moderate tele.
Reply

Leave a Reply

Your email address will not be published. Required fields are marked *

Dave Powell on Pentax M 28mm 2.8 – My Perfect Wide Lens

Comment posted: 31/05/2025

What a lovely lens and results... Thanks Andrei!
Reply

Leave a Reply

Your email address will not be published. Required fields are marked *

Leave a Comment

Leave a Reply

Your email address will not be published. Required fields are marked *