NikonFM3A, photos on Flickr

The Nikon FM2n is the best medium-compact mechanical shutter SLR camera ever made. There are other bodies from other manufacturers that have been favorably compared, such as the Olympus OM-3 and the Leica R6.2. These other cameras indeed have certain features, e.g., spot metering capability, that are not found on the FM2n. However, they have disadvantages, too. The Olympus system is smaller than Nikon, and lenses and accessories are presumably less abundant on the used market. The Leica system is substantially more expensive used, especially the lenses, and the Leica R series never became that popular (as opposed to Leica's M-Series). The design of the FM2n has been highly refined over several generations of the FM product line. It is part of the enormous Nikon system of manual focus and auto focus cameras. Many Nikon bodies are available on the used market. And the FM2n is just an absolutely great camera.

The FM2n is the final all-mechanical version of the FM Series that began with the FM in 1977 as an upgrade to the classic Nikkormat FT3 (early 1977). The FM was subsequently updated and modernized with various versions of the FM, FM2 (1982) and FM2n which were developed over the years, with the FM2n finally introduced in 1984. The FM2n remained in production until 2001. There was actually one additional major upgrade after the FM2n, which was the FM3A (2001-2006; 1991). The FM3A is the most advanced of the FM Series, with a hybrid mechanical/electronic shutter, an FE2 style readout, and all of the other features of the FE2. From a technological point of view, the FM3A is really cool and unique. However, due to some of the feature advantages that I will discuss below, the FM2n is still a very attractive option for all manual film shooting . The FM3A is relatively more expensive on the used market, with relatively high prices for the occasional NIB sample, or even very clean used camera.

Check out the FM3A here:

www.flickr.com/photos/trphotoguy/23145338649/in/album-721...

The standard FM2n was available in silver chrome and black paint. Both look great.

There were a few special versions of the FM2n that were introduced. The most interesting one is the FM2/T (1993-1997). The FM2/T is exactly the same mechanically as the latest FM2n, except that the top and bottom covers are made out of titanium. Please refer to my separate page on the FM2/T, which is one of the most beautiful SLR cameras ever made:

www.flickr.com/photos/trphotoguy/16514084188/in/album-721...

My own experience with the FM line actually started with the FM2n. Previously, I had been using the Nikon F2 Photomic AS and Nikon FE combination; my F2 was the reliable all-mechanical body, and I used the FE as an electronic backup when needing something smaller than the F2, or when wanting to shoot quicker with the FE in aperture priority mode, or just for a different kind of film. (Back then, photographers still looked askance at electronic cameras compared with tried and true mechanical ones.) However, when I finally upgraded from the F2 to the new F3HP, it was time to switch around and get the FM2n as a mechanical backup to the electronic F3HP.

Since my experience with the FM Series started with the FM2n, and given that the FM2n would be the best body of the series to go with on the used market today, I will focus my comments on the FM2n.

As with the prior models of the FM Series, the FM2n takes either a 3V lithium battery, two 1.55V silver oxide batteries, or two 1.5V alkalines. Quite standard for Nikon bodies of the that era. I usually prefer to just go with a single 3V lithium to enjoy the long shelf life, but of course the other two types work fine too, as needed. Since the small batteries are used only for the light meter, they seem to last forever and are not necessary for camera operation at all shutter speeds.

The FM series is built with a copper-aluminum-silicon (copper-silumin) alloy body. I find the size and weight of the FM2n to be perfect, especially with wide-angle through medium telephoto Nikkor manual focus prime lenses. The body size is not too big or too small. Its size is large enough to hold securely, but still smaller than full size professional bodies like the concurrent F3HP. It is not as small as the Contax S2, Pentax MX, or even the Olympus OM-3, which are considered small compact bodies and sometimes feel a bit too small to get a good grip. The FM2n weighs in at only 540g without lens, and of course the weight of the batteries is insignificant, compared with the multiple AA batteries or other larger batteries in future electronic bodies. The FM2n fits great in a dedicated case, or a spongy snug-fit case, or a small camera bag with a few lenses. It is an excellent size for travel use.

The FM2n body by itself, like all those in the FM Series, feels a bit light and even insubstantial when held without a lens attached. However, once a lens is attached, the lens/camera combination has the perfect balance, size and weight. It has a highly luxurious and precision feel and sound when held in your hands and used. I most often use Ai-S primes from 20/2.8 to 200/4 and the system is wonderful to operate with all of those lenses. However, once you start getting into bigger and heavier lenses such as, for example, the 80-200/2.8, the camera feels a big too light and out of balance. Also, on fatter lenses, you may need to use a rubber tripod filler ring to keep the lens rings from touching the tripod head.

Operation of the FM2n is really smooth. All of the top controls are on the right side of the camera. The shutter speed ring is tall, large and has an easy-to-turn knurled grip. It is easy to grab with thumb and forefinger when the film advance lever is pulled out to turn on the camera. The film advance lever motion is amazingly smooth, although the lever is single-stroke only, unlike the levers on the F, F2 and F3. But the stoke is not very big, so a quick easy stroke quickly winds to the next frame. ASA/ISO setting is embedded into the top of the shutter speed dial. Shutter speed and ISO markings are clear and easy to read. The ISO range of the FM2n is 12 - 6400, wide enough to handle virtually all situations. The small multiple-exposure lever is located under the film advance lever, out of the way but easy to turn when you need it. The mechanical shutter release button is large and located at just the right location near the front of the body. It takes a standard mechanical cable release. The shutter release button has a fairly long travel, but it works well with just the right amount of resistance to allow you to half press for an exposure reading, and then make a short continued push to achieve an immediate shutter release. The shutter has a relatively quiet, pleasing and precision-like sound. The film counter is just in front of release crank and is easy to read.

One of the biggest advantage of the Nikon film SLR lens mount (the "F mount") is that it is the only SLR camera mount that has stayed virtually the same from the time of the first Nikon F and Nikkormat FS/FT through to the most current small and full frame Nikon digital SLRs. Except for the requirement that relatively newer Nikon film SLRs require Ai or Ai-converted lenses, all manual focus Nikon F mount lenses can be used on autofocus bodies, and most full-frame auto-focus Nikon F mount lenses (pre-G type) can be used on all old manual focus bodies. I don't know of any other SLR manufacturer that can make such a claim. Thus, it is convenient to use the FM2N together with a modern Nikon autofocus film or digital SLR because you can often use the same lenses on both bodies.

Loading Nikkor lenses onto any FM Series is quick and positive. Just line up the black dot on the lens with the dot on the camera body and twist the lens counter-clockwise. Of course, there is no need to line up the claw on Ai Nikkor aperture rings with an exposure meet pin on the body; this old system became obsolete after the Nikkormat FT2/EL generation. Unfortunately, the FM Series lens mount lost the retractable meter coupling lever after the original FM body; thus the FM2n won't accept (in stop down mode) any pre-Ai or non-Ai's lenses that you might own. To remove a lens, just press the lens release button on the left front of the body and twist clockwise.

The only control on the top left of the camera is the film rewind/back opening mechanism. Twist the back opening lever counter-clockwise and put the rewind crank upwards to open the camera back. Since the camera only has a manual exposure meter mode, unlike the FE/FE2, the rewind crank mechanism includes no exposure compensation dial. Film loading is traditional style and almost foolproof. Like many Nikon and other cameras of this generation, you need to stick the film leader into a slot on the take-up spool and insure that the latch in the spool engages a film perforation. This system is more reliable than that on newer Nikon bodies where you simply lay the film leader flat next to an index line. With the FM2n, if you are careful when you load the film, you can get an extra exposure on frame 0.

The viewfinder of the FM Series has been gradually improved over the life of the series, but remains essentially the same in the FM2n version. A slight disadvantage of the FM series viewfinder is that, unlike the 100% frame coverage of a pro-level Nikon F series camera, the FM's frame coverage is only 93%. This is not unusual in a pro-sumer level camera, but you need to be aware that objects that are outside the field of view in will be captured on your film. (Maybe it wasn't a problem with mounted slides?) The viewfinder contains all of the information that you need for convenient camera setting. There is a mechanical readout for the selected shutter speed on the left side of the viewfinder. There is also a aperture direct readout (ADR) at the center top of the viewfinder. The exposure meter indicator on the right of the viewfinder utilizes three red light emitting diodes. This is my favorite type of exposure meter readout design, which I learned to like on the earlier Nikon F2 Photomic AS. It is also the same system as that on cameras such as the Leica M6TTL or current MP. First of all and most importantly, the diodes are easy to see in all lighting conditions, light and dark. The LEDs are bright enough to be clearly visible on a sunny day, but also not so bright that they blind you in a dark location. Also, exposure adjustment is extremely rapid and precise.

I normally set the shutter speed first, depending on what I am trying to do. Then push the shutter release button down half way and twist the lens aperture ring on the lens until only the center LED circle lights up. As you move away from correct exposure, the LED display changes to a combined +o or o- (when you are over or underexposed by between 1/5 and one stop-), and finally to a single + or - (when you are over or underexposed by more than one stop).The three-diode system of the FM Series is superior to the match needle system of the aperture priority capable FE Series and the hybrid FM3A. While the match needle system is nice and clear in bright light, it is almost impossible to see the display to adjust exposure in dark environments - although the meter itself is very sensitive. On the other hand, an advantage of the match needle system is that you receive direct visual indication of a wider range of exposure divergence, compared with the LED system. Also, you can directly see intermediate shutter speeds in Aperture Priority mode.

The FM2 and FM2n exposure meter uses a pair of silicon photodiodes (SPDs) for exposure measurement. This was the latest generation of exposure meter technology, after Cadmium Sulfide (CdS) technology in the Nikkormat FT (1965) through the FT3 (1977) and gallium-arsenide-phosphide photodiodes in the original FM (1977). Silicon photodiodes provide quick response and stability, and apparently lower manufacturing cost for Nikon, compared with the prior generation. Exposure measurement range of the FM2n is EV 1 to EV 18 at ASA/ISO 100 and with a 50mm f/1.4 lens. This supports a aperture/shutter speed range of 1 sec. at f/1.4 through 1/4000 sec. at f/8. That range is pretty good for most situations, and a step up from the Nikkormat FT - FT3's range of EV 3 - EV 17. The FM2n is exactly on par with the Nikon F3HP. However, it is not as sensitive as the EV -2 to EV +17 range on the F2 Photomic AS, or the EV 0 to EV 21 range of the Nikon F4.

Since the FM Series cameras have manual exposure mode only, there is obviously no exposure lock button. Exposure lock is one thing that can be frustrating on cameras like the F3HP and FE/FE2. It is often easier, even on these cameras with aperture priority mode, to just use manual exposure mode and set the exposure directly. It is quicker and more comfortable than pointing the camera to where you can measure the proper exposure, pushing the exposure lock button an holding the button down will recomposing a shooting. Anyway, you don't need to worry about any of that on the manual mode only FM2n.

The center of the viewfinder display, with the standard K2-Type focusing screen, contains a small central horizontal split image, surrounded by a microprism donut, which is further surrounded by a large matte donut and a 12mm diameter circle. But utilizing both the split-image and microprism collar, you can manually focus on almost any subject very quickly. Turn the camera at a slight angle when focusing if necessary to find a straight line. I can't resist pointing out that with well-maintained manual focus Nikkor primes, such as Ai-S lenses, focusing ring operation is buttery smooth, with just the right amount of viscous resistance. With the no-slip knurled focusing rings, focusing is quick and accurate. The FM2n system provides three different interchangeable focusing screen types for various applications.Mostly, the standard K2-Type screen is sufficient. The B2 type screen removes the split image and microprism focusing aids, while the E2 type is the same as the B2, except with horizontal and vertical etched lines. FM/FE series focusing screens were improved (from the "K" series to the "K2" series) to provide a brighter viewfinder image starting with the FM2/FE2 generation. Focusing screens were further improved on the final FM3A to avoid split-image blackout with lenses with maximum aperture of f/5.6 or less.

The outer circle encloses the central area which carries a 60% exposure meter weight, with the area outside the circle comprising the remaining 40%. The most important thing to know about an exposure measurement system is how it weights various areas of the viewfinder image so that you can determine how to use it in each situation. The 60/40 system works fine for most situations. It is vast improvement over the classic full-frame averaging system, which was used on Pentax Spotmatic models, the earliest Nikkormat FT, and other cameras. For these averaging systems, if you wanted a proper exposure, you could not include a bright light or big sky in any area of the frame. Still, with the 60/40 system, you need to determine where to point the camera when manually setting the exposure. Find an areas that is representative of the subject, but which is not overly influenced by a bright light, a bright sky, a dark background, etc. Also make sure to select an area that approximates 18% gray, such as a dense area of green trees in a landscape image. If you cannot find an area that is equivalent to 18% gray that fills the 12mm circle, for example, inside the Haleakala volcano crater on Maui, HI, or a bright snowscape, then you need to manually compensate the exposure by appropriately changing the aperture or shutter speed.

Two contemporaneous Nikon bodies with the FM2n, the F3HP and the FA had different exposure metering patterns. The F3HP applies a heavier weight of 80% to the viewfinder's 12mm circle, making it easier to isolate an area that is 18% gray, without surrounding high-contrast areas influencing the exposure reading too much. The FA is the first Nikon body to include a multi-segment metering pattern, in addition to 60/40 centerweight. The 5-segment pattern on the FA and first generation software were the first Nikon attempt to correct the weaknesses of the traditional center-weight averaging system. While early multi-pattern systems on cameras such as the FA, F4, F800 and F90/F90x did a pretty good and steadily improving job in most low contrast situations, in difficult situations, they still didn't work as well as the center weight system with appropriate exposure compensation, which was found on the FM2n. Of course, you have to know what you are doing in such situations! On later-generation cameras, the more highly refined high-tech multi-pattern (matrix) systems, such as on the F5, F6 and the newest digital SLRs, finally do a good job even with difficult lighting. Modern Nikon bodies generally use a 75/25 weight in their default center-weight metering modes.

The latest FM2n incorporates a vertical-travel, metal focal plane shutter with aluminum curtains. Older versions of the FM2N have shutters with titanium curtains. Shutter speed range on the FM2N is 1 sec. through 1/4000 sec. For those of us who started back when the fastest shutter speed as 1/1000 sec. or even slower, 1/4000 sec. sounds amazingly fast. In fact, 1/4000 sec. is plenty fast enough for most situations with film. On the slow end, the camera itself can only operate up to 1 sec., but it is an easy matter to calculate and shoot exposures of any length at the Bulb setting, using a tripod, a standard shutter release cable, and a hand-held light meter. Of course, since the camera has a mechanical shutter, you can shoot exposures of any length and never worry about draining your battery. One slight disadvantage of the FM2n's mechanical shutter is that it cannot be set for intermediate shutter speeds. On an electronic body such as the FE2 or FM3A, you can utilize any intermediate shutter speed in aperture priority mode. (Of course, unlike the FE/FA series, the FM-series meters can't measure Bulb setting shutter speeds.)

There are just a few more features that should be mentioned. On the right front side of the body are located a depth-of-field preview lever and a self timer lever. Like many other cameras, you can check actual depth of field at the set aperture by pressing the depth-of-field lever. The image darkens if the lens is not set to maximum aperture, but you can get a good idea of the expected DOF with your lens/aperture combination. Actually, this lever is not really required with manual focus Nikkor lenses, because such lenses include an easy to read DOF index on the lens barrel. Many AF Nikkor lenses also have DOF index marks. The FM Series bodies have a mechanical self-timer with a delay of up to approximately 10 seconds. While these cameras do not have a mirror lock-up switch per se, you can simulate MLU by using the self-timer lever. When the shutter release button is pressed after the self-timer is set, the mirror swings up at the start of the timer count.

Finally, a hot-shoe contact is installed on top of the prism housing for flash photography. The FM2n does not support automatic TTL flash control. You need to use an FE2 or FM3A if you want that feature. (If you know how to use guide numbers and manual flash, you can still do full-flash or fill-flash photography without any problem, of course). However, the FM2n, like the FE2, has a very fast maximum flash synch speed of 1/250 sec. There is an extra contact on the hot shoe that communicates the flash charging status to the camera a lights a red diode "ready light" in the viewfinder when the flash is ready to shoot. Of course, the FM2n works with any Nikon flash unit. The contemporaneous SB-24 and SB-26 work great. However, if you will be doing a lot of flash photography in the FM line, the FE2 and FM3A are more useful as they both offer automatic TTL flash control.

In addition to the vast selection of Nikkor (and third-party) lenses that are available for the Nikon F mount, the FM2n also accepts various other useful Nikon accessories. One of the most useful is the MD-12 motor drive. This motor drive unit works on all FM Series bodies (and even the Nikon FA) and allows rapid fire or remote shooting up to 3.2 frames per second. Years ago, I used to keep it attached to the camera and carried it around much of the time. However, the MD-12 is quite heavy, especially when loaded with the eight required AA batteries. These days, it would obviously be better to use a more modern camera is you want portable and higher-speed motor drive. Other useful optional accessories (which work with all FM and FE series bodies) are the MF-16 data back, the DB-2 Anti-Cold Battery Pack (particularly useful for the FM2n, which would be the perfect camera to take on a dog sled expedition to the North Pole!), the DR-3 and DG-2 viewfinder eyepieces, and various eyepiece correction lenses.

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by Chelsea Gong

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