The initial Nikonos line consisted of three models that were improved versions of Cousteau's Calypso of 1961:
The Nikonos was introduced at Photokina 1963; [4] in the beginning, each camera was individually tested for water-tightness. In Europe, under the terms of the licensing agreement, the Nikonos was known as the Calypso/Nikkor. [14] In July 1966, Nikon began marketing the Nikonos as an all-weather camera and sold a limited number of cameras with a white finish, [15] which consisted of Nikonos cameras with white leather body panels. It is estimated that less than 150 examples of the white-finished Nikonos were made. [16] [17]
In total, approximately 200,000 Nikonos I, II, and III cameras were manufactured between 1963 and 1983. [18] The three Calypso-based Nikonos models share the same basic structure where the complete camera consists of three modules: lens, housing, and shutter/film transport assemblies. Film is loaded in the shutter/film assembly, which is inserted into the housing, and the mounting of the lens locks the three pieces together. The strap lugs are used to pry the shutter/film assembly out of the housing. [14]
The Nikonos II was cosmetically and dimensionally similar to the original Nikonos, but the shutter speed dial has an additional rewind setting, and the rewind knob is equipped with a lever to facilitate operation. Internally, all parts of the Nikonos II were coated to avoid corrosion; in case of leakage, the internal parts could be rinsed in fresh water and dried, leading some to call the Nikonos II indestructible. [14] The film transport mechanism was redesigned for the Nikonos III to use the sprocket holes for positive framing; the original Calypso design did not count sprocket holes which sometimes resulted in overlapping frames. This resulted in a noticeably larger body. In addition, the flash sync port gained an extra pin to support electronic flash units. [14]
A second viewfinder line was Nikon's complete re-design and included a through-the-lens (TTL) light meter with automatic exposure:
In contrast to the prior Nikonos line, the Nikonos IV-A introduced a one-piece body using a hinged back for film loading; sealing was accomplished through numerous o-rings, including a large gasket for the back. The film transport mechanism for the IV-A was adapted from the contemporary Nikon EM. [12] Like the EM, the Nikonos IV-A primarily operated in aperture-priority autoexposure mode using stepless quartz-controlled shutter speeds between 1⁄30 and 1⁄1000, but the camera also offered two mechanical shutter speeds ([B]ulb and 1⁄90, marked as M90) in case of battery failure. [9] In addition, the shutter speed dial can be set to "R"ewind. The viewfinder is equipped with a LED indicator, which glows steadily when the shutter speed is in the operating range (1⁄30 – 1⁄1000), and blinks when the range is exceeded. [19]
The Nikonos V retained the new features of the IV-A and added manual control to set discrete shutter speeds. The V was released to address specific criticisms of the IV-A, namely that the flat gasket design was prone to failure, and that the new flash sync shutter speed of 1⁄90 was too fast, especially since slower speeds could not be set manually to use fill-flash. [9] The Nikonos V was capable of off-the-film-plane flash metering with the SB-102 speedlight, which was introduced alongside the camera at the Photo Marketing Association Show in Las Vegas, held April 1984. [20]
The 1992 Nikonos RS introduced an entirely new concept. Unlike its predecessors, the RS was a complete amphibious single lens reflex camera, with auto-focus, waterproof to 100 m (330 ft) and its own set of unique lenses that also utilized water-contact optics. They are, a 50mm f/2.8 macro, 28mm wide, 13mm fisheye, and the world's first underwater zoom lens, a 20-35mm. The body features considerable automation, with a built-in motor drive for film advance and rewinding, an autofocus system with multiple modes, DX film speed detection, and an aperture-priority autoexposure mode. It is equipped with a high-eyepoint "action" finder, with an eye relief of 60 mm (2.4 in), allowing the user to wear a typical underwater mask. [22]
Previous Nikonos models used lens-mounted knobs for aperture and focus; these controls were moved to the top deck and front grip of the Nikonos RS, respectively. [22]
Item | MSRP | Item | MSRP |
---|---|---|---|
Nikonos RS | $3,550 | Nikonos V | $800 |
R-UW AF Nikkor 28mm | $995 | UW-Nikkor 28mm | $488 |
R-UW AF Micro-Nikkor 50mm | $1,560 | W-Nikkor 80mm | $488 |
UW Close-up Outfit [a] | $530 | ||
R-UW AF Zoom-Nikkor 20-35mm | $3,690 | UW-Nikkor 20mm | $960 |
R-UW AF Fisheye-Nikkor 13mm | $2,480 | UW-Nikkor 15mm(N) | $2,190 |
SB-104 (set) [b] [c] | $1,560 | ||
SB-105 (set) [b] | $820 | ||
Notes |
The RS represented the pinnacle of Nikon's commitment to underwater imaging, and generated significant interest at the time. [24] Although groundbreaking in many ways, it was also very expensive, putting it out of reach of all but the most dedicated (or best funded) underwater photographers. According to Brian Long, the RS was a development of Japan's bubble economy of the late 80s, which saw a number of cost-no-object consumer products and automobiles produced. [25] The potential market was further limited by export controls placed on the camera; the potential for using it in underwater espionage was seen as enough to justify treating it as a strategic product. [26]
Unfortunately, early versions also had a tendency to flood if not maintained perfectly. Flooding was attributed to many factors, one of which was the change to orange-colored silicone o-rings that could swell and fail if third-party silicone grease was applied instead of the Nikonos grease that was petroleum-based. Non-Nikon (third party) silicone grease was commonly used without problems on black Nikonos o-rings by underwater photographers for several decades. Nikon replaced all these floods at first, but in the end, it clearly became not worth the trouble. The RS was quietly discontinued about 5 years later, and no subsequent models were ever designed or manufactured. [27] [28]
No Digital Nikonos has ever been made, but the Commercial & Government Systems division of Kodak modified a small number of Nikonos RS cameras for the United States Navy to create a digital unit known as the "Nikon/Kodak DCS 425". [29] The digital imaging portion was housed in an extended rear door and were largely identical to the options available for the contemporary Kodak DCS 420 cameras based on the Nikon F90. [30] [31]
Nikon celebrated the Nikonos legacy when the Nikon 1 AW1 was released, a waterproof interchangeable-lens digital camera. [32] Reviewers compared the features of the AW1 to the Nikonos line. [33] [34]
With the exception of the above-water only LW-Nikkor 28mm, all Nikonos Nikkor lenses use two knobs to facilitate focus and aperture operation with gloved hands. In later years, these knobs were colored differently to allow the photographer to more clearly distinguish between their functions; for these lenses, the silver or chrome knob sets the focus distance, and the black knob controls the aperture. The LW-Nikkor uses conventional concentric focus and aperture rings. [35]
The two most common Nikonos lenses are the UW 28mm (for underwater use only) and the W 35mm (which is amphibious) with the UW 28mm being considered the better lens. Because water and air have significantly different indices of refraction, the 35mm lens is considered slightly wide on land, but is equivalent to a standard ~50mm lens under water. [36] The nominal focal length can be multiplied by 1.33× to determine the equivalent angle of view underwater. [37] These were also the first two lenses to be introduced with the Nikonos; the design of the W-Nikkor 35mm is based on the Nikkor 35mm f/2.5 lens for M39 mount first sold in 1952; it is a symmetric Double-Gauss lens behind an optical flat to make the assembly water-tight. This improves lens speed compared with the original lens fitted to the Calypso, the SOM Berthiot 35mm f/3.5, which had a Tessar-type construction. [38]
The Nikonos lenses designated "UW-Nikkor" were specifically designed for underwater photography only. It is said [39] [40] that, even to this day, no underwater lens matches the Nikonos "UW" lenses for sharpness and color saturation underwater. A brief explanation from Nikon about the difference between underwater-only lens and standard/"amphibious" lens can be found at Nikon official site, under the section "2. Rendition characteristics and lens performance". [41]
Nikon also created two lenses for use both above and under water, and one of them, the 35mm f/2.5, can be thought of as the "kit" lens. They made the Nikonos useful for aquatic activities such as kayaking, canoeing, or for foul weather situations. These two lenses, the W-35mm and W-80mm, were also fully waterproof, but because they utilized a flat port, they did not have the benefit of the specialized water-contact optics.
Name | Focal length | Intro | Aperture | Water [a] | Min focus | Angle of view [b] | Construction | Size | Attachment size | Ref. | ||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Above | Below | Above | Below | Eles | Grps | (Φ×L) | Weight | |||||||
UW-Nikkor | 15mm | 1972 [c] | f/2.8–22 | No | Yes | 1 ft 0.30 m [d] | — | 94° | 9 [e] | 5 | 90 mm × 79.5 mm 3.54 in × 3.13 in | 340 g 12 oz | 84mm, P=0.75mm | [43] |
1981 | No | Yes | 12 [e] | 9 | 93 mm × 90.6 mm 3.66 in × 3.57 in | 665 g 23.5 oz | 87mm, P=0.75mm | [44] | ||||||
UW-Nikkor | 20mm | 1985 | f/2.8–22 | No | Yes | 1.3 ft 0.40 m | — | 78° | 9 [e] | 7 | 70 mm × 74 mm 2.8 in × 2.9 in | 350 g 12 oz | 67mm, P=0.75mm | [45] |
LW-Nikkor | 28mm | 1984 | f/2.8–22 | Yes | No | 1.5 ft 0.46 m | 74° | — | 5 | 5 | 68.5 mm × 57 mm 2.70 in × 2.24 in | 240 g 8.5 oz | 52mm, P=0.75mm | [46] |
UW-Nikkor | 28mm | 1965 | f/3.5–22 | No | Yes | 2 ft 0.61 m | — | 59° | 6 [e] | 5 | 62 mm × 43.8 mm 2.44 in × 1.72 in | 175 g 6.2 oz | 58mm, P=0.75mm | [47] |
W-Nikkor | 35mm | 1963 | f/2.5–22 | Yes | Yes | 2.75 ft 0.84 m | 62° | 46°30' | 7 [f] | 5 | 62 mm × 39.5 mm 2.44 in × 1.56 in | 160 g 5.6 oz | 58mm, P=0.75mm | [48] |
W-Nikkor | 80mm | 1969 | f/4–22 | Yes | Yes | 3.5 ft 1.1 m | 30°20' | 22°45' | 5 [f] | 5 | 62 mm × 66 mm 2.4 in × 2.6 in | 275 g 9.7 oz | 58mm, P=0.75mm | [49] |
The Nikonos RS mount is physically identical to the older Nikon F mount, but an additional external bayonet was added for sealing, and the claws are slightly offset compared to the venerable still camera mount. The electronic signaling is also different from regular AF Nikon bodies.
The sharpness of a remounted R-UW AF Fisheye-Nikkor 13mm was tested and found to be superior to an equivalent AF Fisheye-Nikkor 16mm using a dome port. [37]
Name | Focal length | Intro | Aperture | Water [a] | Min focus | Angle of view [b] | Construction | Size | Attachment size | Ref. | ||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Above | Below | Above | Below | Eles | Grps | (Φ×L) | Weight | |||||||
R-UW AF Fisheye-Nikkor | 13mm | 1994 [50] | f/2.8–22 | No | Yes | 0.5 ft 0.15 m | — | 170° | 10 [c] | 7 | 126 mm × 92 mm 5.0 in × 3.6 in | 970 g 34 oz | — | [51] |
R-UW AF Zoom-Nikkor [d] | 20–35mm | 1992 | f/2.8–22 | No | Yes | 0.38 ft 0.12 m | — | 80° to 51° | 10 | 10 | 162 mm × 129 mm 6.4 in × 5.1 in | 1,750 g 62 oz | 148mm, P=1.0mm | [53] |
R-UW AF Nikkor | 28mm | 1992 | f/2.8–22 | No | Yes | 0.9 ft 0.27 m | — | 60° | 6 | 6 | 99 mm × 77 mm 3.9 in × 3.0 in | 550 g 19 oz | 88mm, P=1.0mm | [54] |
R-UW AF Micro-Nikkor [e] | 50mm | 1992 | f/2.8–22 | Yes | Yes | 6.6 in 0.167 m | — | 35° | 10 | 9 | 103 mm × 126 mm 4.1 in × 5.0 in | 1,100 g 39 oz | 88mm, P=1.0mm | [55] |
Lenses were made for the original Nikonos mount (for example, by Sea&Sea), which included both prime lenses as well as focal length converters which attached to the front of a Nikonos lens.
Name | Focal length | Intro | Aperture | Water [a] | Min focus | Angle of view [b] | Construction | Size | Attachment size | Ref. | ||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Above | Below | Above | Below | Eles | Grps | (Φ×L) | Weight | |||||||
Sea&Sea SWL Fisheye (64000) [c] | 12mm | 1994? | f/3.5–22 | No | Yes | 11.8 in 0.30 m | — | 167° | 9 | 6 | 108 mm × 91 mm 4.3 in × 3.6 in | 570 g 20 oz | — | [56] [57] [58] |
Sea&Sea WL-15 (63000) | 15mm | ? | f/3.5–22 | No | Yes | 10 in 0.25 m | — | 96° | 10 | 8 | 85 mm × 68 mm 3.3 in × 2.7 in | 365 g 12.9 oz | [56] [59] | |
Sea&Sea WCL-16 (62001) [d] | 16mm | ? | f/5.6–22 | No | Yes | 1 ft 0.30 m | — | 91° | 4 | 4 | 78 mm × 54 mm 3.1 in × 2.1 in | 400 g 14 oz | [56] [59] | |
Sea&Sea WL-17 | 17mm | ? | f/3.5–22 | No | Yes | ? | — | 86° | ? | ? | 89 mm × 102 mm 3.5 in × 4 in | 440 g 15.5 oz | [60] : 164 | |
Subatec Subawider (II, III) [d] [e] | 17mm [f] | ? | f/2.5–22 | No | Yes | ? | — | 90° [g] | ? | ? | ? | ? | [60] : 165 [61] | |
Sea&Sea WL-18 [h] | 18mm | ? | f/3.5–16 | No | Yes | ? | — | ? | ? | ? | ? | ? | [60] : 164 | |
Sea&Sea WL-20 (60000) | 20mm | ? | f/3.5–22 | No | Yes | 1.3 ft 0.40 m | — | 80° | 7 | 7 | 57 mm × 62 mm 2.2 in × 2.4 in | 270 g 9.5 oz | [56] [59] | |
Seacor Sea-Eye | 21mm | ? | f/3.3–16 | No | Yes | 2.5 ft 0.76 m | — | 92° | ? | ? | ? | ? | [62] |
Because the numbered Nikonos cameras did not offer through-the-lens viewing, the extremely shallow depth of field for macro photography pragmatically required a focusing aid. The extension tube and Close Up Kit systems used a framer, which attached to the lens assembly and provided a direct physical index for the camera-to-subject distance, as well as its approximate width/height. The Nikon Close Up Kit provided a complete rectangular frame, but most third-party extension tube kits typically only indexed the bottom and two sides, not the top, and because of this shape, a slang term for Nikonos framers were Goal Posts.
For various reasons (such as concern for potential damage to the reef), some alternative products were developed over time to minimize or replace the basic framer design. One example (Fred Dion; Underwater Photo Tech) consisted of a bracket that held two small flashlights whose beams aligned at the focus plane.
The Nikonos light meter accessory houses the selenium-celled Sekonic L-86 Auto-Lumi. [63] An underwater light meter is necessary for the Nikonos I, II, and III, which do not have metering in the body.
Because light becomes monochromatic as depth increases, a portable light source is required for underwater photography. The first Calypso-based Nikonos cameras (I and II) were equipped with two-pin sync ports for flashbulb units. The Nikonos III added a third pin to support electronic flash units; although a prototype was exhibited (SB-11), the first electronic Nikonos flash unit, the SB-101, was introduced with the Nikonos IV-A; both the IV-A and III supported the SB-101, but the IV-A dropped support for the flashbulb units. The SB-102 and -103 were introduced with the Nikonos V, with the SB-103 a more compact version of the SB-102, which in turn was an updated version of the SB-101. The SB-104 and -105 were introduced with the Nikonos RS; all four of these units (SB-102 through -105) supported TTL flash operation. [14] [24]
The SB-103 was recalled in September 1998; hydrogen gas could potentially build up and be ignited by the flash tube, which would eject the front lens and flash tube assembly from the unit. Owners of recalled units were offered the SB-105 as a replacement. [64] Because the SB-103 housing was designed to be pressure-resistant, Nikon was unable to crush the recalled units and instead drilled a hole through the "103" marking on the side of the flash. Some of the recalled units were subsequently resold on the secondary market. [65] The recall was still active as of October 2017; because the SB-105 is no longer being manufactured, SB-103 owners will instead receive a voucher. [66]
Name | Guide No. [a] | Coverage (Land/Water) | Modes | Power | Size | Weight | Ref. | |||
---|---|---|---|---|---|---|---|---|---|---|
Land | Water | TTL | Auto | Manual | ||||||
SB-101 | 32 m (105 ft) [b] | 16 m (52 ft) [b] | 66°/50° [b] [c] | No | Yes [d] | Yes (Full, 1⁄4) | 8×"AA"/R6 | 403 mm × 94 mm × 157 mm 15.9 in × 3.7 in × 6.2 in (H×W×D) [e] | 1,900 g (67 oz) [f] | [67] |
SB-102 | 32 m (105 ft) [g] | 16 m (52 ft) [g] | 79°/59° [g] | Yes [h] | Yes [d] | Yes (Full, 1⁄4, 1⁄16) | 6×"C"/R14 | 139 mm × 152.5 mm × 212 mm 5.47 in × 6.00 in × 8.35 in (W×H×D) [i] | 1,670 g (59 oz) [f] | [68] |
SB-103 | 20 m (66 ft) [j] | 10 m (33 ft) [j] | 79°/59° [j] | Yes [h] | No | Yes (Full, 1⁄4, 1⁄16) | 4×"AA"/R6 | 175 mm × 130 mm × 99 mm 6.9 in × 5.1 in × 3.9 in (W×H×D) [i] | 780 g (28 oz) [f] [k] | [69] |
SB-104 | 32 m (105 ft) | 16 m (52 ft) | 115°/100° [l] | Yes [m] | No | Yes (Full, 1⁄4, 1⁄16) | SN-104 NiCd | 124 mm × 222 mm 4.9 in × 8.7 in (Φ×L) [i] | 1,990 g (70 oz) [f] [n] | [70] |
SB-105 | 22 m (72 ft) [j] | 11 m (36 ft) [j] | 103×84° [l] [o] | Yes [p] | No | Yes (Full, 1⁄4, 1⁄16) | 4×"AA"/R6 | 99 mm × 130 mm × 181 mm 3.9 in × 5.1 in × 7.1 in (W×H×D) [i] | 780 g (28 oz) [f] [q] | [71] |