Pentax Spotmatic F

Asahi Pentax Spotmatic F Review – A Class Act – By Bob Janes

September 14, 2020

Before I get to talking about the specifics of the Pentax Spotmatic F, I want to take you back to 1979 when I was a teenager. My brother’s first son had just been born. Mum, Dad and I went to visit, as did my sister-in-law’s parents.

I was mad keen on everything photography and camera based at the time, pretty much to the exclusion of my studies. My sister-in-law’s father (David) was a successful professional photographer with a good reputation in commercial product circles. While the grandmothers were cooing over the new baby, I quizzed David about his gear.

“I have my 35mm camera case in the boot of the car if you’d like me to bring it in for you to see?” he offered.

I nodded vigourously – he disappeared for a few minutes and returned with an aluminium camera case. He opened it up to show the neatly arranged camera and lenses in their foam cut-outs, just as you might expect – but the camera itself surprised me.

It was an Asahi Pentax Spotmatic F. A highly respectable camera, but by this time twice superseded by the KX and then the MX in the Pentax roster and not even possessing a bayonet mount. This pro was shooting with kit less sophisticated than mine. I made a mental note to myself:

Pro photographers don’t need the latest kit – they just need something they can rely on.

“ Would you like to see my favourite lens?” David asked. I nodded again, expecting to see some exotic super-fast classic come out of the case.

Instead he pulled a non-descript lens out from its cutout, wrapped in a soft cloth. I’m not sure what focal length it was, because half the front of the lens appeared to be missing – instead, epoxied in its place was a plastic lens, such as you might get in a child’s detective set.

“This gives wonderful effects – clients love the soft and dreamy quality of the shots… I’ve taken some of my best shots with this lens”

I made a second mental note to myself:

A super sharp and expensive lens doesn’t necessarily give you the best photograph…

Unfortunately David is no longer with us (although I do have stewardship of an old Rolleiflex of his until one or other of his grandsons wants to take it on), but as a camera, the Pentax Spotmatic F will always remind me of him, and of those two valuable photographic lessons.

Vintage GAS

Back about 10 years ago, I started to pick up the dream cameras of my youth. I picked up a number of pre-Integrated-circuit manual exposure cameras from various manufacturers, including an early OM1, a number of SRT-101s and a few Pentax Spotmatics. A lot of these old cameras were crocked, but it was fascinating taking them apart and I even managed to revive a few.

One that worked like a charm from the start was my own Spotmatic F. Bought on ebay from someone local enough to pick it up from his place, it had a dinky little 28/3.5 SMC Takumar attached and worked like a charm. £16 was a bargain.


To start with I’d like to say a word about Pentax. Pentax was the brand that Asahi Optical started to use for their eye-level 35mm reflexes. They actually acquired the name from the East German bit of Zeiss, who had trademarked the name, which was originally a merging of ‘Pentaprism’ and ‘Contax’. There seems to have been a good degree of collaboration with Zeiss, which led to Asahi using the m42 mount which had first appeared on the Contax S. Years later Zeiss would also collaborate on the development of the K mount.

A lot of pros used Pentax Spotmatics. They were great little cameras – a pleasure to use and reliable.

The cameras were marketed across most of the world as ‘Asahi Pentax’, but in the United States the cameras carried alternate engraving on the top-plates, identifying them as ‘Honeywell Pentax’ and carrying an ‘H’ badge on the pentaprism, in place of the ‘AOCo’ logo used elsewhere in the world.

Pentax Spotmatic F

Takumar Lenses

Asahi’s lenses were branded ‘Takumar’. Takumar lenses earned themselves a decent reputation with high mechanical and optical standards and featuring excellent, class leading multi-coating. Unfortunately after switching to K mount and branding the main line of lenses as Pentax, Asahi cheapened the Takumar brand a little by giving it to a ‘budget’ range of lenses – but m42 Takumars are generally objects of desire.

There are two distinct lines of Takumars from those m42 days. All are high quality, but the cheaper range aims for compactness and relatively modest speeds. In times when f2.8 primes were common, Pentax had some wonderful diminutive f/3.5s. But if you wanted fast over small, you could get a faster-than-normal f/2.5 135 prime, plus some Thorium glass super-fast standards. The range was all there, with one of the largest varieties of standard lens focal lengths from any manufacturer.

Mechanical quality in those Takumars is excellent. Even 50 years on, focusing movements are buttery smooth: they are a pleasure to use.

Pentax Spotmatic F shutter dial

A little ‘Spottie’ History

The Spotmatic prototype was first shown at Photokina in 1960 – It was innovative in offering TTL (through the lens) spot metering. However, by the time it actually made the market in 1964, it was not the first camera to offer TTL metering and, although they kept the ‘Spotmatic’ name from the prototype, it didn’t feature a spot-meter, judging exposure instead by averaging across the field of view with a bias towards the centre of the frame.

The Spotmatics have elegance and class. There is an Art-Deco quality to the pentaprism front that reminds me of the Chrysler Building in Manhattan. The film wind-on lever has no plastic tip, instead it is a wonderfully contoured, organic form, which manages in cast aluminium to be wonderfully comfortable to use, while the self-timer lever is almost sculptural. Even the typeface used for the body engraving was elegant.

The original Spotmatic had a ‘pointy’ pentaprism, without a fixed shoe. Budget models (the SP 500 and SP 1000) forsook the self timer. The Spotmatic II, added a hot shoe and a more sqauared-off pentaprism to the top model. The innovation of an electronic shutter along with lenses that were able to transmit aperture information to the camera body allowed two models, the ES (Electro Spotmatic) and ES II, with aperture priority automatic exposure.

Pentax Spotmatic F

The Pentax Spotmatic F

The Pentax Spotmatic F (or SP F as is engraved on the top surface of the top-plate) was the last of the Spotmatics to be introduced. It came out in 1973, and just two years later the whole Spotmatic line would be superseded by a new range of K bayonet-mount cameras.

The camera itself is fully mechanical apart from the meter and is quite basic. It will meter wide open with SMC Takumar lenses – these have two tabs inside the mount – one is fixed and lets the camera tell how far the lens has screwed onto the thread – the other moves with the aperture ring – its position relative to the fixed tab tells the camera what the aperture setting is. This is a clever solution to a tricky problem if you want to use a screw mount for open aperture metering, but not a problem you encounter with a bayonet.

The Pentax Spotmatic F viewfinder is very spartan. You get a microprism to aid focusing and a meter needle to centre on the right. You don’t see shutter speeds or apertures (one of the advantages of the K mount was that Pentax could use what Nikon refer to as an ‘Aperture Direct Window’ to see, in the viewfinder, the aperture set on the lens through a set of prisms – the KX, which effectively replaced the SP F, added this feature, while the K1000 was effectively the same spec as the SP F but without the self-timer or depth of field preview).

The Pentax Spotmatic F retains the stop-down switch on the left of the lens mount for depth of field preview and for compatibility with earlier Takumars or third party lenses.

Body layout is very conventional: It has a shutter speed dial on the right top-plate for speeds from 1 second to 1/1000 plus B, with X synch at 1/60 (fairly normal for cloth horizontal-run shutters) – a conventional hot-shoe sits atop the pentaprism. The ASA range is from 20 to 3200 (DIN is not displayed).

Also on the right side of the Pentax Spotmatic F top plate is the shutter release with a lock surrounding it, and, just beside it a small window that indicates whether the shutter is cocked or not. The wind-on lever is capable of being operated with either a single stroke or a number of shorter movements. The frame counter sits inside the hub of the wind-on lever.

On the left of the top plate is the rewind crank, which releases the back when pulled up. This is surrounded by a (purely informational) dial that allows you to set a reminder of the film type and length you have loaded.

On the front of the Pentax Spotmatic F you have the self-timer, which you operate by pulling down to the side and then pressing the little button that is revealed. Flash sockets for FP and X synch are over on the opposite side of the front.

Underneath you have a centrally placed tripod thread, a broad rewind button (with red dot to show film travel back into the cassette – stop rewinding as soon as it stops rotating and the leader will be left out of the cassette), and a battery chamber.

The Pentax Spotmatic F uses a bigger battery than some of the earlier Spotmatics. There is some debate about whether the ‘F’ has the same voltage bridge circuitry as earlier Spotmatics. Since the original version of this review was published I’ve seen a repair manual for the Spotmatic F meter through a post on the PentaxUser forum, which suggests that the bridge curcuitry is present in the SP-F, K1000 and KM. Debate will, no doubt, continue. The bridge circuitry allows Spotmatics to take 1.5v silver oxide batteries without needing to recalibrate, so if you can fit a battery in the camera of 1.35v or higher, the meter should work. If in doubt, check the exposure, or use 1.35v Zinc-air batteries.

Pentax Spotmatic F Issues

The stop-down switch on the side of the mount can be a weakness on Spotmatics (it is one control that gets a lot of use) – if you are buying one used try to make sure it moves well and clicks easily into place.

While earlier Spotmatics only turned the meter on when the stop-down switch was in the upper position, and turned it off as soon as a shot was taken, the Pentax Spotmatic F needs to have the meter on when the lens is opened up – for this reason the battery will drain unless you keep the lens cap on – so it is much easier to accidentally drain the batteries of an SP F (this may also be why the SP F was given a bigger battery than earlier Spotmatics).

Pentax Spotmatic F Front

The shots

A little context here, I am blessed with a good excuse for travelling – even in times of lockdown – I’m a volunteer transplant courier, carrying stem cells around the UK (and beyond when travel restrictions permit) – these are a few shots I took with The SPF on trips to Shefield, Heathrow and Bristol…

A selfie taken with the only SMC Takumar to hand – this is a 55 f/2.0, although it has lost its filter thread…

Courier cover-up in times of Covid-19… “Is this shutter cocked?.. Oops, yes.”

Locally made truck at Aerospace Bristol

Travelator at Heathrow

Bristol Fighter at Aerospace Bristol

Bristol Scout replica constructed by apprentices at RAE in the 60s – now housed at Aerospace Bristol

St Pancras Station

On a deserted tube towards Heathrow…

Betjeman at St Pancras

Summing up

Recently I’ve been running a lot of B&W film through cameras. The other day I was debating whether to just slip the little XA2 into my pocket for a trip, or to pack the Contax G1. Then I started to fiddle with the Pentax Spotmatic F, which had been sitting against the skirting board in the lounge for a while. I hadn’t had a film in for some years. I screwed one of my little Zenitar Fish-eyes on it and was amazed at how good it felt. It earned a fresh roll of film almost immediately. Having taken it on the trip I can’t think why I’m not shooting with this camera all the time.

As a camera, the Pentax Spotmatic F is not dripping with controls and features, but it is a fantastic little picture-taking machine that does pretty much everything in an elegant and stripped-down manner. At the end of the day character matters.

I just wish I could remember where I put that 28mm f/3.5 SMC Takumar…

More of my reviews can be found here.

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  • Reply
    September 14, 2020 at 4:22 pm

    This is an excellent article! I recently purchased a Spotmatic from eBay and am currently having it cleaned, but this actually helps me understand a lot more about that model’s bells and whistles. Thanks!

  • Reply
    Graham Coad.
    September 14, 2020 at 4:24 pm

    Hi, it was actually the Pentax KM that was the direct successor to the Spotmatic F, rather than the KX.
    I lusted after, and was saving up for the Spotmatic F when Pentax changed to the Bayonet mount, so I ended up with the KM as my first Pentax.

    • Reply
      Bob Janes
      September 14, 2020 at 5:21 pm

      You are quite right – Pentax seemed to have gone a bit model-mad with the new bayonet, as they had two high-level manual variants replacing the ‘F’ – I tend to think of the KX as being the equivalent, maybe because a friend at school had a KX and was looking to upgrade to an MX (he was very into manual exposure, while I was the one who advocated auto.. I might have got through to him because when he did upgrade he got a good deal on a K2…

  • Reply
    john g
    September 14, 2020 at 5:42 pm

    Thanks so much Bob, your article ticked all my boxes. I didn’t even know Pentax came from an East German trademark. My dad brought back a Spotmatic from Vietnam which is what I learned photography on in my youth. I picked up a Spotmatic F and some Takumars a few years back when I started collecting old cameras. It means a lot to me. I’ve never owned a Zenitar but I borrowed one a few years back and shot a few rolls with it. Such a fun lens!

  • Reply
    Murray Kriner
    September 14, 2020 at 5:57 pm

    Such a delightful tale told, and can concur with your estimates of all the much misunderstandings left by professional craftspeople who still know good things when they lay hands on them. Beautiful shots at the BAE museum. Best wishes my friend.

  • Reply
    Wim van Heugten
    September 14, 2020 at 7:47 pm

    WARNING! That screw holding the shutter speed dial is right-handed not left-handed, so it unscrews counter-clockwise. Maybe you are confused by the screw holding the frame counter ring or the screw ring under it, bit are left-handed (for body SN under 3.000.000). The screw ring may be left- or right-handed!!

    That said: I love your article!

    • Reply
      Bob Janes
      September 14, 2020 at 10:53 pm

      Thanks for that – I will try to check it out and reword in the review.

  • Reply
    September 14, 2020 at 8:11 pm

    Wow, you learn something new every day! I did not know the origin of the Pentax name or its Zeiss connections. Great story, great review and great photos; who could ask for more?

  • Reply
    Wim van Heugten
    September 14, 2020 at 8:24 pm

    One more thing. The lightmeter of the Spotmatic (and SPII) are in fact sensitive for the battery voltage, so this should be 1.35 Volts. The circuitry of the SPF is different and that makes the metering voltage independent.
    For the SP soluitions are putting a Schotky diode in, or using a Weincell.
    Metering will not be hugely off with 1.5 Volts, but I prefer to avoid error sourdes.

    • Reply
      Bob Janes
      October 10, 2020 at 5:26 pm

      Wim – since making the original correction to the article I’ve found new information through an on-line repair manual (see – which suggests that the bridge cuircitry is present in the SP-F. I’ve re-edited the article accordingly, but acknowledge that there is still debate over this. I’d be interested to know of you are aware of this on-line manual and whether you agree with what it says.

  • Reply
    Castelli Daniel
    September 14, 2020 at 11:48 pm

    Thank you for the review of a wonderful camera. My first camera (1970) was a Honeywell Pentax H1a w/a 50mm f/2.0 Takumar. That’s what it was called here in the US.
    I transitioned to a Nikon F as I entered college but the Pentax was always special. The Nikon was Jeep, the Pentax was an MG.
    Good shots! Thank you for the critical work you do.

  • Reply
    Gene Wilson
    September 15, 2020 at 4:02 pm

    I have an original model Spotmatic that my Father-in-law bought in the ’60s in Japan and once I replaced the light-seals, it’s been a perfect camera. It’s as old as I am (and that’s pretty old) but works flawlessly and feels so great in your hands when you’re shooting.

  • Reply
    Kevin Campbell
    October 2, 2020 at 4:15 pm

    Love it – my collection includes a Spotmatic ES and a numbers matching SP + 55mm/1.8, along with pretty much every K/M/L model made, but this gives me an excuse to look for another Spotmatic to add 🙂

  • Reply
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  • Reply
    Andrew Skinner
    October 2, 2020 at 9:20 pm

    The F was one of my early cameras, in black. Doesn’t work any more. There was a version for a power winder and I did see one badged as “Honeywell Pentax”. The SP1000 and the F were my staple for many years and it hurts me a bit that Pentax has fallen so.

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  • Reply
    Wally Beagley
    October 3, 2020 at 12:41 pm

    I spent almost all the wages from my first summer job (at a camera store) on an H3v (The last un-metered Pentax model). This was my primary camera for almost 20 years. I didn’t upgrade because Pentax changed the lens mount and I couldn’t afford to buy all new glass. In the 80s, I was seduced by the specs of the Nikon FE2, but never got totally comfortable with it. When autofocus came in, I didn’t like the heavy, klunky Nikons, so went back to Pentax with a ZX5n (still my favorite Pentax.) It is the only camera I know that has exposure modes, but doesn’t slow you down by making you use a dial or switch to change modes. To change from program mode to aperture preferred, you just move the aperture setting on the lens from the auto setting to the aperture you want. Same with the shutter. If you set both an F and a speed, you are in full manual. Someone should have won an award for this. I have since acquired a digital Pentax as well as an old Mx and a Spotmatic F. They all still work (except for the Spormatic meter.)

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  • Reply
    Stuart Watson
    October 4, 2020 at 9:44 am

    it is a most interesting article. I too had a Pentax Spotmatic F as my first serious camera which replaced my Kodak Retinette 2A. It was a great camera with a lovely solid feel to it – I’m not sure there was any plastic on it – and it also took great shots. Later in its life I had problems with the exposure meter which even Pentax failed to solve. It was finally repaired by a private firm in Leicester. After 20 years of use I changed to Canon and passed the SPF down to my daughter and was subsequently and unfortunately taken during a house burglary. As it happens I came across the instruction manual only last week tucked away in a drawer.

  • Reply
    sergio rodrigues moreira
    October 4, 2020 at 4:19 pm

    My first love SLR camera ( which I keep with various lenses and accessories ) is the MIRANDA AUTO SENSOREX EE! It was an advanced camera for that time, when my shots were only made with silde film! Some of my best shots ever were made with it… for those who want to know the avant garde modes of this champ camera, see its instruction manual:

  • Reply
    ww floyd
    October 6, 2020 at 8:32 pm

    Hey, you had me going there, with this: “… for this reason the meter switches on as soon as you unlock the shutter release…”

    That was not my memory. I’ve always found it a bother that the SP F light meter is on ALL THE TIME, with SMC lenses. I have run down a few batteries, as a consequence. So, I hoped you were right, but, verified with my SP F, and with the instruction manual, that you were in error. Manual says: “When not actually measuring light, be sure that the lens is covered at all times. Leaving the lens cap off for an extended period of time will exhaust the mercury battery.”

  • Reply
    October 7, 2020 at 5:15 pm

    [I had trouble posting, yesterday, and ended up doing multiple sends. I finally got a message that I had already submitted “that” comment. But, it’s not showing up, so, I’ll try one more time.]

    Hey, you had me going there, with this: “… for this reason the meter switches on as soon as you unlock the shutter release…”

    That was not my memory. I’ve always found it a bother that the SP F light meter is on ALL THE TIME, with SMC lenses. I have run down a few batteries, as a consequence. So, I hoped you were right, but, verified with my SP F, and with the instruction manual, that you were in error. Manual says: “When not actually measuring light, be sure that the lens is covered at all times. Leaving the lens cap off for an extended period of time will exhaust the mercury battery.”

    • Reply
      Bob Janes
      October 7, 2020 at 6:07 pm

      Thank you very much for that – I’ve reworded accordingly.

  • Reply
    October 7, 2020 at 5:16 pm

    oops, now, I see them all

  • Reply
    Rachael Tyrell
    October 16, 2020 at 3:26 pm

    I have recently acquired an early Spotmatic SP. The best camera I have ever owned. Feels perfect in your hand, lovely to use. Basic, robust but very smooth and elegant.

    Perfect now that Kodak have reintroduced Ektachrome reversal film again.

    The little camera is over 50 years old and with it’s Super Takumar lens still turns out stunning photos. And it has the most satisfying film advance I have ever used!

    The meter works perfectly (just make sure you use a 1.35V battery). The reading is always pretty much spot on and in accordance with the vintage handheld light meter I use.

    I love it.

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  • Reply
    Allen Humphries
    December 18, 2020 at 11:08 pm

    My first real camera was the Spotmatic F. It’s still on a shelf in my bedroom. While at university, I would shoot 1,000 frames in a week when we took field trips to study architecture in Chicago or New York. I had the Takumar 55f1.8, Takumar 38f3.5, and a 70-250f3.8 zoom. I loved that if the battery died, all I lost was the light meter, the camera still functioned.

  • Reply
    Allen Humphries
    December 18, 2020 at 11:14 pm

    Please disregard the previous post. It was uploaded by accident. My first real camera was the Spotmatic F. It’s still on a shelf in my bedroom. While at university, I would shoot 1,000 frames in a week when we took field trips to study architecture in Chicago or New York. I had the Takumar 55f1.8, Takumar 28f3.5, and a Unitax 85-210f3.8 macro-focusing zoom. I loved that if the battery died, all I lost was the light meter, the camera still functioned.

  • Reply
    December 21, 2020 at 6:42 pm

    Great camera,i have more pentax camera (hoby) and i see that in time this is good option price/quality.

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