Konica Auto S3

Konica Auto S3 – Small and Perfectly Formed – By Bob Janes

Coinciding with their centenary in the early 70s, Konica fused two of their camera lines together. Since 1968 they had made a compact rangefinder camera called the C35. They had also made a series of fast fixed lens rangefinders in the ‘Auto S’ series. Now they produced a camera with the body of the C35 and the lens of the Auto S cameras. This was known as the C35 FD in Japan and the Konica Auto S3 elsewhere. The Auto S3 was finished in black anodised aluminium, while the C35 FD had a plain anodised finish.

Konica Auto S3 front


The Konica Auto S3 sports a 38mm f/1.8 lens with 6 elements in 4 groups. Wider than the lenses on previous ‘Auto S’ cameras (45-47 mm). Faster, by more than a stop, than the 38mm found on the standard C35 cameras.

It is a handy little lens. It seems to have had lots of plaudits and attracts a lot of very favourable comparisons. The downside of the superb lens is its extra depth. It is still jacket-pocketable, but is bulkier than its smaller (elder) brother.

Konica Auto S3 and C35
The Auto S3 and the C35 nose-to-nose. The anodised black finish is very hard-wearing, but where it does wear off it shows through as an uninspiring grey. The natural finish shows less wear over time.


The Konica Auto S3 gives a little more control over exposure than the C35. It sets an aperture that will work with a shutter speed set on the ring around the lens. Shutter speeds vary between 1/500 and 1/8 (plus B). An exposure lock operates on a half-press of the shutter release.

Konica Auto S3 lens
Shutter speeds, focus and guide numbers are set by rings around the lens mount.

The Konica Auto S3 provides film speeds between 24 and 800 are set by a little tab at the bottom of the shutter speed ring. This positions a mask over the CdS sensor to shade it. As you select slower shutter speeds the mask opens up to let more light in. All very mechanical and reasonably fool-proof.


The Konica Auto S3 takes a 1.35v mercury battery, but a 1.45v zinc-air battery works as a reasonable substitute. Without a battery the mechanical shutter speeds still operate as normal, but the lens will be wide open, as there are no manual apertures.


Everything is where you would expect and operates in the way you would expect. The CdS cell is inside the filter ring. The self-timer operates by pulling down to the side. Lifting the rewind crank pops the film door.

Konica Auto S3 open back
Not a lot of wasted space. Sakura was the brand name of Konica’s in-house film at the time.

Focus is set on the Konica Auto S3 using a nice large tab that moves between the 3 and 4 o’clock positions. Closest focus is 90 cm.

Film wind-on is via a little one-stroke lever with a plastic tip on the top-plate. The shutter release is just in front of the wind on lever, offset slightly to the left. The only other features on the top plate are the film counter window, a hot shoe (with a cam that detects if a flash is in place) and a fold-out rewind crank.

Automating flash

Konica Auto S3 lens
Put a flash in the hot-shoe and the lens stops down to an aperture appropriate to the guide-number and focus distance. Note the five-bladed aperture, also found on the later Cosina ‘fellow travellers’.

One extra trick up the sleeve of the Konica Auto S3 is its direct flash capabilities. The camera is able to detect a flash in the hot-shoe and sets the aperture to suit the focus distance for the appropriate guide number. The shutter can synch at any speed and the camera displays a flag in the viewfinder showing what aperture it is going to use. Adjusting the shutter speed to bring the meter needle in the viewfinder in line with the flag, gets you the correct shutter-speed and aperture combination for fill flash at that particular distance.

Konica Auto S3 viewfinder
The viewfinder of the Auto S3 when a flash is in the shoe. The broad green flag shows what aperture is currently set for the selected guide number and focus distance (about 6ft here). The meter needle shows what the settings should be for natural light. If the shutter speed was increased so that the meter needle overlapped the flag, we should get balanced fill-flash exposure for a subject 6ft away.

Good points

  • Light-touch shutter release requiring very little pressure
  • Exposure lock on initial press of the shutter release
  • Compact body
  • Largely mechanical
  • Excellent lens


  • There is no off switch for the meter. The only way of preserving batteries is to cover the lens.
  • There is no shutter lock. You either have to store it without the film wound on for the next exposure, or be careful that the light touch shutter release doesn’t get pressed accidentally in a pocket or camera bag.
  • The plastic cover for the battery compartment is quite soft and tends to get marked-up with use.
The C35 had a little aluminium cover, which does not tend to ‘chew-up’ quite so much.

The only other downside of this fast lens camera is that too many people know how good it is. You are unlikely to find a working copy of the Konica Auto S3 / C35 FD at a bargain price.

Fellow travellers

There are a number of other compacts that are often associated with the Konica Auto S3. These are similar in specification and dimensions and share very similar brightlines and metering scales, but the rest of the internals and the lenses are different.

The Minolta Hi-Matic 7sII, Vivitar 35ES and Revue 400SE all appear to have been manufactured by Cosina in the late 1970s. These cameras are almost identical in size  to the Auto S3 (a fraction wider, a tad shorter) and feature a 40 mm f/1.7 lens (also 6 elements in 4 groups). The 40 is also highly respected. Specification is almost identical. Taking the top plates off confirms that the Minolta, Vivitar and Revue cameras are the same camera under the skin. The body for all three appears to have been derived from the earlier Minolta HiMatic F.

A look at the internals of the Auto S3 (whose body derives from the C35) confirm that the Konica is a different design.

The Hi-Matic does not have the flashmatic feature of the Konica, Revue or Vivitar cameras, but does allow manual setting of apertures for tricky exposure situations or when using an automatic flash.

It is notable that the release of the Minolta, Vivitar and Revue models in 1978 coincides with the discontinuation of the Auto S3. It is not impossible that the Auto S3 was produced in Cosina’s works to a Konica design, with Cosina using what they had learnt to produce their own similarly specified camera on the same production line afterwards – but this is speculation.


Konica Auto S3, Kentmere 400, processed in R09 (1:50)

Old Naval College against the light
Old Naval College chapel
Entrance to the chapel
The Yacht – the first pub in the Western Hemisphere. The Cutty Sark pub, about 100 yards to the right, can claim to be the first pub in the Eastern Hemisphere…
Shrimps and beer


The body of the Konica Auto S3 is very compact and fits the hand well. Given the spec of fitting in a fast 38mm lens and a 135 film the camera is about as small as it could be – exactly the same height and depth as the Canonet GIII QL17, but 1 cm less in width.

The lens is very good, but then the ones in rivals from Canon, the Olympus and the others are too. The main advantage over the GIII and the Olympus 35 SPn is the lightness of the shutter release, but all are very usable.

Whenever I use the Konica Auto S3 I find myself wondering why I don’t use it more. It wasn’t cheap when I bought it used over 30 years ago, but I’m rather glad I picked it up.

For a similar and slightly more affordable experience, the Konica C35 rangefinder camera is also a lovely little camera, featuring the same focal length on a slightly slower f/2.8 lens with programmed exposure.

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About The Author

15 thoughts on “Konica Auto S3 – Small and Perfectly Formed – By Bob Janes”

  1. Pretty overrated in my book.
    Which is a good thing since it works as bait and distraction for other better options.

    Only thing it has got going vs. other similar rangefinders is size.
    But size usability goes in steps. Either *real* small so it’s easy and carefree to carry in a small cover in you pocket.
    Talkin Contax T, Minox or Pen EE.

    Any bigger and it’s going to just be a distraction and hindrance out and about, so you might as well carry it in a bag or on a strap.

    S3 is just that bit to big, but with all the negatives of a smaller camera. IE no manual mode with meter, squinty finder and fiddly controls.

    The lens while good, is woefully oversold.
    All the hype hinges on the elusive magazine review, that everybody quotes but no one has ever seen.
    It’s most likely a Cosina lens. Both in design and make.
    The S2 and HiMatic 7 lenses, being ten years older are either superior or every bit as good.

    1. There are some lovely small rangefinders out there – some of which you mention, but they do have slower lenses than the class of rangefinder cameras this article is focused upon. I can’t think of another fast rangefinder that is smaller than the Auto S3.

      I’ve never found the viewfinder to be ‘squinty’ and the auto functions on the S3 work well enough that I don’t feel the need to switch to manual.

      Part of the advertising for the Auto S series was a tag line that said the lens was worth the price alone. However elusive the review might be (your post is the first rebuffal I’ve seen of it), there are countless users who have been impressed over the years.

      I have no doubt that the lens could have been made by Cosina, as they were one of the premiere lens grinding companies in Japan at the time – being made by Cosina is hardly a minus. That Cosina made the lens slightly different for the Minolta/Revue/Vivitar versions makes me think that the design was originally from Konica and that it was changed just about enough to not offend. But what the hell, it is a lovely little lens, whoever designed it.

      As for the S2 and HiMatic & lenses on previous models – I’m sure they were great (although I’ve not shot with them) – however I find the ergonomics of the Auto S3 to be about as good as 35mm fixed lens rangefinder got. Other opinions are, of course, perfectly valid.

    2. KevinEyewanders

      In most thing, Helge, I tend to agree with you whole-heartedly, but on this topic I couldn’t disagree more vehemently, sorry to say. They hype around this camera, for my part, extends from use; I’ve heard this magazine article mentioned but I’ve never bothered to seek it out; who really cares, at the end of the day? That reviewer may simply have been as genuinely enamored by this little super-C35 as many have been before and after, myself included.
      Size usability does indeed proceed in steps and for my money, the Auto S3 is near-to-perfection. It is neither too large to be cumbersome (I’ve often forgotten where mine is), nor too small so too feel fiddly and difficult to shoot. It is the smallest camera that still feels like a *camera*. And though I agree in part about the lens, again it’s the balance it strikes and that proceeds in degrees as well. The 45mm found on the S2 is sharper and is a wonder, but for this application I drastically prefer the rendering and length of the Auto S3’s fast 38mm… it also has a rendering not unlike some of my most favorites (Pentax FA 31 comes to mind) somehow, some way. Even everyday family shots taken with it give me pause each and every time I scan a roll today. My view of a the 45mm is more clinical admiration as opposed to emotional connection in the images that result. The 40mm Rokkor varieties that came later are good… they are not as good as either of these Hexanons.
      The short of it for me is that I want (have wanted) to agree with your sentiments here, but the C35FD/AutoS3 pulls me back with every handling and each processed roll. For me it’s a legend that deserves its accolades. One of the very few “total package” cameras and one that I would never part with.

      1. Steve Rosenblum

        Hi Kevin—The review article you refer to was in Modern Photography magazine which was known for doing rigorous tests on cameras and lenses. I am going to try to link to a copy of the article below which is in my DropBox. The tests of the Auto S3 Hexanon 38mm f/1.8 lens showed excellent resolution at center and in corners at all aperture settings from f/1.8-16 causing the reviewer to comment that it was the best test result for any medium wide angle lens they had tested up until that point, and they had tested lenses for decades. The reviewer was not “enamored” by the camera, they just reported the results of their objective tests on the lens. I have found those results to be consistent with my copy of the Auto S3. It is possible that you had a poor copy of the lens/camera, or that you favor another lens quality not reflected in the Modern Photography tests. Everyone is entitled to their own opinion. But I wanted to clear the air regarding your assertion that the positive review was due to the reviewer being “enamored” in some way. Those tests from back then were quite rigorous. Here is my attempt at linking to my copy of the review: https://www.dropbox.com/s/do95giow7o92s5f/Konica%20Auto%20S3%20Review%20Modern%20Photography.pdf?dl=0

        1. Thanks for that Steve – the link does appear to work and the downloaded article is an interesting read. The main gripe appears to be the accuracy of the viewfinder brightlines.

  2. These were nicely made little cameras. Your results look good. I take traveling a similarity specified Yashica Electro 35CC camera with a 6 element 35mm f/1.8 lens. The Yashica is aperture priority; no total manual unfortunately.

  3. Craig Schroeder

    I had S3’s and most of the decent alternatives (Minolta Hi-Matic E, Canonette’s, Rollei 35’s, etc) The S3 always seemed to produce the best negatives. The loose lens housing gave it a “Made by Mattel” sense that I didn’t like but its function was intuitive and easy. I liked the flashmatic system, too. There were many small manual flashes floating around in those days that paired nicely. I sent one with a photo friend who was headed on a mountain hunting trip and taking his F-1 Canon gear. His best shots were with the S3 and he purchased one for himself right away. The S3 wasn’t as tactiley gratifying as some others but as a functional tool, it was a great producer….

  4. Thanks for the little Greenwich travelog! I was there for the first time just a couple years ago. The photos look quite sharp! Always amazes me for these little old brownies : )

  5. You noted that “There are a number of other compacts that are often associated with the Konica Auto S3. These are similar in specification and dimensions and certainly seem to share the same viewfinder/rangefinder unit” , is unfortunate and incorrect. The rangefinder on the Auto S3 was bright and clear with easy to see yellow RF spot, fixed framelines with parallax compensation marks, and indicated f/stops. The Cosina copies sported a smaller, darker viewfinder with significant barrel distortion. Makes me wonder if you ever compared these cameras yourself or relied on misinformation from other folks. As you indicated, tear-down of the Konica and the others show they are different cameras but then you go on to say that perhaps Cosina made the lens for Konica? Konica has the most storied history in Japanese photography and made great glass and cameras long before Cosina existed. The Konica is the only camera mentioned in your article with the flashmatic feature, (again; did you actually look at these other cameras?). Why you give voice to Cosina-origin rumors with zero evidence is puzzling and detracts from the credibility of your review.

    1. That ‘Fellow Travellers’ section was included to point out that the Auto S3 and the other cameras are not the same, despite suggestions in various internet articles. To gloss over what is written elsewhere would be to ignore the elephant in the room.
      Regarding the viewfinder unit – the bright-lines are the same and the unit looks the same under the hood. It may use cheaper optics in the eyepiece, but it looks to have a common source – likely a third party. There are also similarities between the rangefinder units of the Minolta HiMatic E and the Yashica Electro cameras – again I suspect a common supplier of those rangefinder units (which are different from the ones in the Auto S3/HiMatic 7sii/Revue and Vivitar cameras).
      I don’t say that Cosina made the lens for Konica. There is stuff out there on the web that sugests that Cosina made the whole camera – it isn’t impossible but it is speculation (note – not my speculation). As I note in the article the Vivitar and the Revue versions do have a flashmatic feature – but they don’t share the fill-flash feature.
      Cosina have made lots of stuff for other camera makers – Including the Konica TC-X. They also manufactured models for Canon, Nikon and Olympus. Before they were Cosina they ground and polished lenses for other companies.
      I’m sorry you feel that I’m feeding rumours rather than correcting and taking an objective view of what is stated elsewhere. I will look at the wording to see if I can make it clearer.

    2. I’ve changed “certainly seem to share the same viewfinder/rangefinder unit” to “share very similar brightlines and metering scales” – but I’d point out that the brightlines are so similar that it really sugests a common source of components.
      I’ve also included a bit about the body similarity of the Cosina-made cameras to the earlier HiMatic F, which hopefully underlines that the 7sii, Revue and Vivitar are different cameras to the Auto S3.

    3. Kevin Eyewanders

      Fred – did you pen such thoughts in years past as “Frank”? I feel I’ve been in such a conversation before, and at length; you bring up nearly verbatim points that I just went back and read from our conversation stemming from Mr. Eckman’s review of one of the later Hi-Matic clones. And, while I agree (and did agree in those conversations past, assuming you’re the same person) with your points, I feel that in this Bob has given all the information more than a fair shake, noting speculation where needed.
      To that end, the edits you’ve done are more than adequate, Bob.
      And in spirit of all of this, I have a PDF history in my inbox even now written in staggering detail by Frank (Fred?) but with no author mentioned. You should publish that write-up somewhere here on the interwebs, Fred (again, tediously, if you’re the same person).

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