List of M42 Camera Bodies By Generation

As an addendum to this article, here is a list of M42 camera bodies (post-1948) by technological generation. This is not a complete list and is an ongoing project. I am leaving out Edixa models and most rebadged bodies (Revueflex, Vivitar, Porst, Sears, etc.) for now. Where there is an exact modern silver oxide equivalent to the original battery, that is listed. Where the original battery was a mercury type without an exact silver/alkaline equivalent, the mercury is listed.

First Generation

Non-Metered + Manual Stop-Down Aperture Control

ModelYearNotes
Contax S1949Built-in Pentaprism
Contax D1952Built-in Pentaprism
Contax E1956Contax D with Uncoupled Selenium Meter
Pentax1957Built-in Pentaprism & Lever Advance
Pentax S1958Built-in Pentaprism & Lever Advance
Petri Penta1959Pentaprism & Lever Advance
Praktica1949Waist-Level Finder
Praktica FX1952Waist-Level Finder
Praktica MX1952Waist-Level Finder
Praktiflex1949Waist-Level Finder
Zenit E1965Uncoupled Selenium Meter
Zenit B1968

Second Generation

Non-Metered + Auto-Diaphragm Operation

ModelYearBatteryNotes
Contax/Pentacon F1956NoneFirst 2nd Generation Body
Contax/Pentacon FB1956NoneContax F with Uncoupled Selenium Meter
Contax/Pentacon FM1958NoneContax F Split-Screen Focusing Aid
Contax/Pentacon FBM1958NoneContax FM with Uncoupled Selenium Meter
Pentax K1958None
Pentax S21959None
Pentax S11959None
Pentax S31961None
Pentax SV1962None
Pentax S1a1962None
Pentax Spotmatic SL1968None
Praktica FX21956None
Praktica FX31956None
Praktica IV1959None
Praktica IVB1961NoneSelenium Meter
Praktica VF1964None
Praktica Nova1964None
Praktica VFB1965NoneSelenium Meter
Praktica Nova B1966NoneSelenium Meter
Pentaflex SL1967None
Praktica PL Nova1967None
Praktica PL Electronic1968PX625First SLR with Electronically-Controlled Shutter
Praktica L Series1969None
Praktica LB Series1972NoneSelenium Meter
Yashica Penta J1961NoneOptional Clip-On Meter Coupled to Shutter Speed
Yashica J-31963RM-1Non-TTL Light Meter Not Coupled to Aperture
Yashica J-P1964NoneOptional Clip-On Meter Coupled to Shutter Speed
Yashica J-51964PX625Non-TTL Light Meter Not Coupled to Aperture
Yashica J-41965PX625Non-TTL Light Meter Not Coupled to Aperture
Yashica J-71968PX625Non-TTL Light Meter Not Coupled to Aperture

Third Generation

Stop Down TTL Light Metering + Auto-Diaphragm Operation

ModelYearBatteryNotes
Chinon M-11972PX625
Chinon CX1974PX625
Chinon CS1978PX625
Chinon SLR1979
Chinon CS-419802 x SR44
Cosina Hi-Lite1968PX675
Cosina Hi-Lite DL1970PX675
Cosina SLR1971
Cosina Hi-Lite 2021975PX675
Cosina 1000S1976?PX675
Cosina 4000S1976?PX675
Exakta TL 1000 / TL 5001972PX625
Exakta Twin TL 421973PX675
Fujica ST70119702 x PX400
Fujica ST60119752 x PX400
Fujica ST60519762 x SR44
Fujica ST605N19782 x SR44
Miranda Sensomat TM1974PX675
Pentax Spotmatic1964PX400First 3rd Generation Body
Pentax Spotmatic 5001971PX400
Pentax Spotmatic II1971PX400
Pentax Spotmatc IIa1971PX400
Pentax Spotmatic SP 10001974PX400
Praktica Super TL1968PX625
Praktica LTL Series1970PX625
Praktica Super TL 21975PX625
Praktica TL1976PX625
Praktica DTL Series1978V21PX
Praktica MTL 31984PX625
Praktica MTL 51984PX625
Praktica MTL 5019854 x SR44
Ricoh Singlex TLS1967PX675
Ricoh TLS 4011970PX625
Ricoh SLX 5001975PX625
Ricoh Singlex II1976PX625
Voigtlander Bessaflex TM20032 x SR44
Yashica TL Super1966SR44
Yashica TL1968SR44
Yashica TL Electro X1968PX28Electronic Shutter
Yashica TL-E1969PX28?Electronic Shutter
Yashica TL Electro X ITS1971Electronic Shutter
Yashica TL Electro1972Electronic Shutter
Zeiss Ikon Icarex 35 / 35S TM1969PX625
Zenit 1919792 x PX625

Fourth Generation

Open-Aperture TTL Light Metering with Proprietary M42 Lenses

ModelYearBatteryNotes
Fujica ST8011972S28PX
Fujica ST70519762 x SR44
Fujica ST605 II19782 x SR44
Fujica ST705W19782 x SR44
Mamiya DSX 500 / 10001974SR44
Mamiya MSX 500 / 10001974SR44
Olympus FTL1971PX625
Pentacon Super1968PX625First 4th Generation Body
Pentax Spotmatic F1973PX625
Praktica LLC1969V21PX
Praktica VLC Series1974V21PX
Praktica PLC Series1975V21PX
Voigtlander VSL11974PX625
Zeiss Ikon SL7061971PX625

Fifth Generation

Aperture or Shutter Speed Priority Autoexposure with Proprietary Lenses

ModelYearBatteryNotes
Exakta FE 20001977PX675Shutter-Speed Priority Autoexposure
Fujica ST90119744 x SR44
Fujica AZ-119783 x SR44
Pentax ES1971First Fifth Generation Body
Pentax ES II19734 x SR44
Praktica EE21977V21PX
Praktica EE31979V21PX
Ricoh Auto TLS EE1976PX675Shutter-Speed Priority Autoexposure
Yashica TL Electro AX1971A32PXButton to Open to Full Aperture
Zenit 181980Only AE with the Zenitar ME1 50mm f/1.7

Chinon / Cosina / Zenit System

Stop-Down Metering Activated Through Half-Press of Shutter Button

ModelYearBatteryNotesOthers Versions
Chinon CE1974S28PXAperture-Priority; 1/2000 Top SpeedRevueflex 4000 EE
Chinon CE-II1976S28PXAperture-Priority; 1/2000 Top SpeedRevueflex 4004 / 4000 EE / 4004 / 5005; Porst Reflex M-CE & C-EE
Chinon CX-II1976PX625No AutoexposureRevueflex 3000 SM & 3003
Chinon CE-319782 x SR44Aperture-PriorityRevueflex AC1
Chinon CM-1 / CM-319782 x SR44No AutoexposureRevueflex SC1
Cosina Hi-Lite EC1972Aperture-Priority; 1/2000 Top Speed
Cosina Hi-Lite 402PX625No Autoexposure
Cosina Hi-Lite 4051974PX625No Autoexposure; Spot & Center MeteringRevueflex SM302; Porst Reflex C-TL Super
Cosina Hi-Lite ECL1977S28PXAperture-Priority; 1/2000 Top SpeedRevueflex EE 303
Cosina CSL19782 x SR44No Autoexposure
Cosina CSM19782 x SR44No AutoexposurePorst Compact-Reflex; Petri MF-2
Cosina CSR19782 x SR44No Autoexposure; Spot & Center Metering
Zenit 1219832 x SR43No Autoexposure
Zenit 12219902 x SR43No Autoexposure
Zenit 312M19992 x SR43No Autoexposure
Zenit 412DX / 412LS2000 / 20022 x SR43No Autoexposure

Review: The Konica Hexar AF Silver

Without a doubt, the 1993 Konica Hexar AF was and remains the most advanced fixed-lens 35mm “point and shoot” ever produced. Konica centered this masterpiece around its newly-designed 35mm f/2 Hexar, a direct descendant of the famous 1950s Nikon 35mm f/1.8 W-Nikkor, which itself was produced in relatively small quantities in Nikon rangefinder and Leica screw mount.

Nothing about Konica’s early 1990s camera product line, consisting mostly of semi-advanced point-and-shoots in the form of the “Big Mini” series, would have foreshadowed the AF. The AF’s most immediate ancestor appears to have been the 1988 Konica “Genba Kantoku” series of autofocus point-and-shoots made for the construction industry. That line had four basic models, with the following lenses: a 28mm f/3.5, a 35mm f/3.5, a switchable 40mm / 60mm, and a 28-56mm zoom. These tough, weatherproof cameras were entirely automated with no meaningful user override. These cameras were never really exported to North America and remained largely unknown outside of Japan until the internet era.

The Hexar AF came in two primary versions: the black original Hexar AF (1993) and the better-featured Hexar AF Silver (1997). There were also a few limited editions like the “Classic,” the “Gold,” and the “Rhodium.” With the AF Silver arguably being the “definitive” version, let’s take a look at that one specifically.

Specifications Compared

Here is the AF compared with the internet’s favorite point-and-shoots with fixed lenses around the 35mm focal length: the Contax T3, the Fujifilm Klasse, the Leica Minilux, the Nikon 35Ti, and the Yashica T4.

Hexar AF SilverContax T3Fujifilm Klasse SLeica MiniluxNikon 35TiYashica T4
Year Introduced199720012007199519931990
ASA Range6-640025-500025-320025-500025-500050-3200
ASA Override?YesNo; Non-DX Defaults to ASA 100YesNo; Non-Dx Defaults to ASA 100No; Non-Dx Defaults to ASA 100No; Non-Dx Defaults to ASA 100
Lens 35mm f/235mm f/2.838mm f/2.840mm f/2.435mm f/2.835mm f/3.5
Lens Design7 Elements / 6 Groups6 Elements / 4 Groups4 Elements / 3 Groups6 Elements / 4 Groups6 Elements / 4 Groups4 Elements / 3 Groups
Lens Type Modified XenotarSonnarTessarDouble-GaussDouble-GaussTessar
Viewfinder Coverage / Mag.?85% / .50x85% / .48x83% / .35x85% / .50x?
Filter Size46mmNone; Accessory for 30.5mm FiltersNoneNoneNoneNone
MeteringCenter / Spot (in M)CenterCenterCenter / SpotCenterCenter
Min. Focus0.60m0.35m0.40m0.70m0.40m0.35mm
Focus Lock?YesYesYesYesYesYes
Auto Parallax-Corrected?Yes; AutomaticNoNoNoNoNo
Exposure ModesP / A / MP / AP / AP / AP / AP
Exposure Compensation?+/- 2+/- 2+/- 2+/- 2+/- 2None
Max Shutter Speed1/2501/12001/500 (f/2.8); 1/1000 (f/16)1/4001/5001/700
FlashExternal GN SystemBuilt-In; Optional External TLA 200Built-InBuilt-InBuilt-InBuilt-In
Battery2CR5CR2CR2CR123ACR123ACR123A
Weight495g230g270g366g310g190g

The Good

I have owned a Hexar AF Silver for over 20 years. In my opinion, the most impressive aspects of the AF include: (1) its fantastic lens; (2) its modern implementation of the 1960s guide number flash system; (3) its nice parallax-corrected viewfinder; (4) extensive user control over all of its functions; (5) its optional “silent mode;” and (6) the ability to use regular camera filters.

Lens: The 35mm f/2 Hexar lens on the AF is a multicoated, Xenotar-type descendant of the Nikon’s 35mm f/1.8 W-Nikkor. The two lenses perform remarkably similarly. The Hexar even displays the same focus shift as the Nikkor. Aware of the focus shift issue, Konica designed the autofocus system of the AF to compensate automatically for any shift in focus. The Hexar’s only real shortcoming is its noticeable barrel distortion. Oddly enough, the 1950s W-Nikkor’s barrel distortion is much better controlled, perhaps due to its use of discontinued (and slightly radioactive) lanthanum glass. The Hexar AF’s lens was so desired that large Japanese camera stores commissioned Konica to produce several Leica screw mount versions of it, including the limited edition, brass-barrel 35mm f/2 UC Hexanon.

Guide Number Flash System: The AF’s electronic leaf shutter permits flash synchronization at all shutter speeds. The AF’s external hot shoe flash system was a modern implementation of the old 1960s guide number flash system, appearing in such products as the Auto SE and the Auto S3. This system was quite ingenious. Using virtually any electronic flash in existence that has a manual mode, the user would simply dial in the flash’s guide number (at ASA 100). With the camera knowing that the flash would always fire at that full power setting, it would automatically compensate for both the ambient lighting and the focusing distance to arrive at the correct exposure for both indoor and daylight conditions. Of course, the AF can also use any regular old electronic “auto mode” flash. Konica did offer the HX-14 flash that could operate both in GN and auto mode.

Automatically Parallax-Corrected Viewfinder: The AF’s bright viewfinder automatically compensates for parallax error by collapsing the framelines to the appropriate size. The viewfinder also includes lights for over/under exposure, a spartan distance scale which collapses appropriately, and a warning light if the subject is too close to focus.

Silent Mode: During the 1990s, Konica got into a bit of legal trouble by including an optional “silent mode” where the camera makes virtually no noise when autofocusing, tripping the shutter, and advancing the film. This apparently appropriated another company’s intellectual property. While this function does slow down the autofocus, it is still doable. The focus and advance are not truly “silent,” but they are pretty muted. Because of the aforementioned legal trouble, Konica stated that it had “removed” this feature from the AF Silver. However, if you know the secret code, you can enable it.

Filters: The AF’s compatibility with any screw-in 46mm filters is another great attribute. Filters are very useful for, e.g., protecting a lens, for black and white photography, and for increasing exposure time with neutral density filters.

Functionality

Without going through the whole list, here are the salient features of AF in no particular order:

Multiple Exposure Modes: The AF can operate in three separate modes: Program, Aperture-Priority, and Manual. “Program” is a true point-and-shoot mode, with the camera setting both the aperture and shutter speed. “Aperture Priority” is also straightforward, with you setting the aperture on the rotating dial and the camera sets the appropriate shutter speed. Manual mode is less straightforward, with you setting the aperture on the dial and then scrolling through some buttons to set the shutter speed via the LCD.

Minimum Shutter Speed Setting: To prevent camera shake from ruining your photos, you can program the AF to a minimum shutter speed while in Program or in Aperture-Priority mode: 1/4 to 1/60 of a second. I find that 1/30 is generally sufficient if you have a somewhat steady hand.

Focus & Exposure Lock: A half press of the shutter button will lock both the focus and exposure. This is an essential feature for this type of camera.

Exposure Compensation: In either P or A mode, you can easily set exposure compensation using two buttons beneath the switch.

Film Speed Override: The DX override is a fantastic feature. It allows one to use non-DX coded film cassettes at any ASA. It also works well for exposure compensation when using filters.

Automatic Infrared Film Focus Compensation: When using infrared film, the AF has a setting that will automatically adjust the focus appropriately.

Multiple Exposures: The AF has a feature that easily permits multiple exposures, as many of you want, within reason.

The So-So

Despite the AF’s impressive optics and features, there are a few aspects that could have been better.

1/250 Top Shutter Speed: The most popular gripe about the AF is its relatively-low maximum shutter speed of 1/250. This limitation is puzzling as leaf shutters can often achieve at least 1/500.

Size/Dimensions: Although the AF generally operates like a point-and-shoot, it is not point-and-shoot sized, more resembling the dimensions of a classic 1960s fixed-lens rangefinder.

No Exposure Information in Viewfinder: While the AF’s viewfinder contains automatic parallax corrected framelines, an abbreviated distance scale, warnings for over/under exposure, and an indication if the subject is too close to focus, there is no actual exposure information communicated.

Too Many Buttons? While the AF can do a lot, many of its advanced functions require some button and switch combinations that are neither necessarily intuitive or easy to remember without a cheat sheet.

The Data Back: The AF Silver came with a data back whose only function is to perhaps ruin your photo by imprinting a date on the bottom right quadrant of your negative. While this function may have been useful for some documentary, industrial, or scientific purposes, it is useless for taking real photos. The date function only goes up to December 31, 2019.

Tips for Use

Neutral Density Filters: One of the best things you can do to get the most out of the AF is to invest in a high-quality 2 or 3 stop neutral density filter. If using 400/800 speed film in daylight conditions, a neutral density filter is pretty much necessary. A 3-stop ND filter reduce 400 speed film to 50 and 800 speed to 100, allowing you to use the same roll in a variety of lighting conditions.

Unlock the Silent Mode!: If you have a Silver AF, that had the silent mode disabled from the factory, be sure to unlock the secret silent mode. The code can be found through an internet search.

Take Advantage of the GN Flash System: Because the AF Silver does not require the use of a proprietary flash, invest in whatever large or small flash that suits you, as long as it can shoot in manual mode (i.e., full, 1/2, 1/4 power, etc.). The Konica HX-14 flash is cute but not necessary. The daylight fill flash feature works quite well but can lean towards a little overexposure, just like SLR TTL flashes.

Treat It Like a Point and Shoot: At the end of the day, although the AF has remarkable capability and user override, in my opinion, the AF is really best used as an advanced point and shoot that can excel in available-light situations.