กลับไปยังรายบอร์ด โพสต์ใหม่
adapter ตัวที่ 15 คือ T mount-pentax Q

The T-mount is a standard lens mount for cameras and other optical assemblies. The usual T-mount is a screw mount using a male 42×0.75 (42 mm diameter, 0.75 mm thread pitch) metric thread on the lens with a flange focal distance of 55 mm and a mating female 42mm thread on a camera adapter or other optical component. This thread form is referred to as T-thread. (This should not be confused with the M42 lens mount which is also 42 mm diameter, but has a 1 mm thread pitch. Confusingly, the T-thread is sometimes described as "M42x0.75," which is the metric manner in which to describe the thread.)
The "T" is said to stand for Tamron or Taisei, a Japanese manufacturer that released in 1957 the first of a line of aftermarket camera lenses that fit 35 mm SLR cameras built by various manufacturers using their universal T-mount. On the first model, the mini T-mount used a M37×0.75 thread; Tamron’s canonical M42×0.75 T-thread didn’t appear on the market until about 1962. The company referred to it variously as a T-mount, T-thread, T-adapter, or a T-400, but not as a T-2, which is simply the name that Soligor used for its version of the T-adapter. The proprietary lens mount of each camera manufacturer was adapted to the T-mount thread with a simple adapter. Thus a retailer could stock a small number of expensive lenses that would fit a large number of camera brands using a selection of inexpensive adapters.
Some T-mount lenses accept a T-adapter that lacks its threaded inner ring, and simply slides onto the T-mount lens. It is secured only by 3 set screws that match a channel on the lens barrel, such that the barrel is not deformed by the set screws and the adapter can therefore be removed with no damage.
As a common mechanical interface, the T-mount allows components of various manufacturers to be interchanged and assembled. The T-mount is a solely mechanical specification. Electrical or mechanical connections (such as for autofocus) are generally not provided, although Sigma’s YS Mount featured an automatic diaphragm coupling.
Besides cameras, T-mounts are used in optical breadboard prototyping components as well as telescope and microscope attachments. The T-mount is also a standard way to mount a camera to a microscope to photograph pathological specimen slides or to a 1.25″ telescope eyepiece.

T.jpg
2018-4-22 21:43


T01.jpg
2018-4-22 21:43


ราคาประมาณ 663 บาท ค่าส่งฟรี

ผลงานภาพและเนื้อหาทั้งหมดภายในเว็บไซท์เป็นลิขสิทธิ์ของผู้สร้างสรรค์ผลงานนั้นๆ หากชื่นชอบหรือต้องการนำไปเผยแพร่กรุณาแชร์ลิ้งค์กระทู้ไปนะคะ ขอบคุณคะ ^_^

TOP

adapter ตัวที่ 16 คือ  T2 mount-pentax Q

The T2 adapter, sometimes called a T2-ring, was created to overcome the alignment flaw of the T adapter. A T2 adapter is made from two concentric rings. The outer ring includes the camera-specific mount. The inner ring attaches to the T thread. The two rings are connected by three set screws. When these set screws are loosened, the inner and outer rings can rotate, changing their respective orientation. To use a T2 adapter, the user normally attaches the adapter to the lens; then mounts the lens and adapter on the camera. Once mounted, the set screws are loosened, the lens is rotated into the correct orientation, and the set screws are tightened again. Because of the time required, it was typical for a user with multiple T mount lenses to buy a T2 adapter for each lens so that it would not need to be readjusted with each use.

T2.jpg
2018-4-22 21:47


T02.jpg
2018-4-22 21:47

TOP

adapter ตัวที่ 17 คือ Konica AR -pentax Q

Konica (コニカ Konika) was a Japanese manufacturer of, among other products, film, film cameras, camera accessories, photographic and photo-processing equipment, photocopiers, fax machines and laser printers. The company merged with Japanese peer Minolta in 2003, with the new company named Konica Minolta.

AR-01.jpg
2018-4-22 21:50


AR-02.jpg
2018-4-22 21:50


The company traces its history back to 1873 (pre-dating Kodak in the photography business) when pharmacist Rokusaburo Sugiura began selling photographic materials at his store in Konishiya Rokubē, the biggest pharmacy trader in Tokyo at that time.[1]
In 1878, Rokusaburō succeeded to his family and renamed Rokuemon VI (Rokudaime Rokuemon). He gave the original shop to his younger brother and launched a new shop, Konishi Honten (Konishi Main Shop) in the Nihonbashi district of Tokyo.
In 1882, Konishi launched a project to produce photography related materials in Japan: those products were imported at that time. In 1902, Konishi began to sell the "Cherry Portable Camera" (チェリー手提用暗函), the first Japanese produced end-user oriented camera. New products were released respectively, and Konishi Main Shop became the leading camera company in Japan. In 1921, old Konishi had his elder son succeed to the family and thus company head with the name, and in this occasion Konishi Honten was turned into a company Konishiroku Honten. The name Konishiroku was taken from the abbreviation of their names, Konishi Rokuemon.
Konishiroku released their "Konica I" type camera in 1948, after which they would name their own company in 1987.
Konica's single lens reflex cameras pioneered auto-exposure in cameras with focal-plane shutters and fully interchangeable lenses. The Konica Autoreflex of 1965 used an external light meter cell to set the lens diaphragm automatically after the user selected a shutter speed. With the Autoreflex T of 1968, Konica improved this design into a through-the-lens meter, using the same automation system. (The user could also set the exposure manually on these cameras). Other camera makers eventually adopted auto-exposure as well, but Konica was the first.
In 1990's Konica signed its first major contract with Los Angeles County providing leasing of copiers to the Los Angeles Superior Court. This resulted in a major shift in the industry that had sold only copiers before. The County initial order of 250 copiers required Konica to redirect all of it inventory throughout North America to the County.
On August 5, 2003, Konica merged with Minolta to form Konica Minolta. In 2006, Konica Minolta Holdings exited the photography business.[2] In March 2006, the merged company closed down its photo imaging division, which produced color film, color paper, photo chemicals and digital minilab machines. Its digital SLR camera section was transferred to Sony. Dai Nippon purchased Konica's Odawara factory site and continues to produce paper under its own brand, while Seapac acquired the Konica chemical factory.

AR-03.jpg
2018-4-22 21:50


AR-04.jpg
2018-4-22 21:50


AR-05.jpg
2018-4-22 21:50


ราคาประมาณ 626 บาท ค่าส่งฟรี

TOP

adapter ตัวที่18 คือ Minolta AF -pentax Q

The Minolta A-mount camera system was a line of photographic equipment from Minolta. The system used a lens mount called A-mount, with a flange focal distance 44.50 mm. The new mount was larger than the older SR-mount making old manual lenses incompatible with the new system. The mount is now used by Sony, who bought the SLR camera division from Konica Minolta, Konica and Minolta having merged a few years before.
The Minolta A-mount system was at first marketed as Maxxum in North America and α (Alpha) in Japan and the rest of Asia. In Europe early Minolta A-mount cameras were initially identified by a 4 digit number followed by AF. The name Dynax was introduced later with the "i" cameras, the second generation of Minolta A-mount camera.
It was originally based around a selection of three 35 mm single-lens reflex (SLR) bodies, the 5000, 7000 and 9000. The system also included an extensive range of auto-focus lenses, flashes, a motor drive and other accessories. Compatible equipment was made by a number of third parties.
In the following years, many different cameras and accessories were added to the range.
The last film-based AF SLRs produced by Minolta were the Maxxum 50 (a.k.a. Dynax 30 and Dynax 40) and the Maxxum 70 (a.k.a. Dynax 60 and α-70). The Dynax/Maxxum/α branding was also used on two Konica Minolta digital SLRs, prior to the acquisition by Sony (7D, 5D).[1][2]
When Sony acquired Konica Minolta's camera technologies in 2006

MI-AF-01.jpg
2018-4-22 21:55


MI-AF-02.jpg
2018-4-22 21:55


MI-AF-03.jpg
2018-4-22 21:55


MI-AF-04.jpg
2018-4-22 21:55


ราคาประมาณ 439 บาท ค่าส่งฟรี

TOP

adapter ตัวที่19 คือ Pentax Auto 110-pentax Q

The Pentax Auto 110 and Pentax Auto 110 Super are single-lens reflex cameras made by Asahi Pentax that use Kodak's 110 film cartridge. The Auto 110 was introduced with three interchangeable lenses in 1978. Three more lenses were introduced in 1981, and then the Super model was released in 1982. The camera system was sold until 1985. The complete system is sometimes known as the Pentax System 10, apparently for its official Pentax name, although most Pentax advertising only uses the camera name or Pentax-110. This model represented the only complete ultraminiature SLR system manufactured for the 110 film format, although several fixed-lens 110 SLRs were sold. The camera system also claims to be the smallest interchangeable-lens SLR system ever created.
The cameras and lenses were very small (the camera fits in the palm of a hand easily) and were made to professional SLR standards of quality.

P110.jpg
2018-4-22 22:03


P110-01.jpg
2018-4-22 22:03


P110-02.jpg
2018-4-22 22:04


P110-03.jpg
2018-4-22 22:04


P110-04.jpg
2018-4-22 22:04


ราคาประมาณ 1818 บาท ค่าส่งฟรี

ผลงานภาพและเนื้อหาทั้งหมดภายในเว็บไซท์เป็นลิขสิทธิ์ของผู้สร้างสรรค์ผลงานนั้นๆ หากชื่นชอบหรือต้องการนำไปเผยแพร่กรุณาแชร์ลิ้งค์กระทู้ไปนะคะ ขอบคุณคะ ^_^

TOP

adapter ตัวที่20 คือ Pentax DA -pentax Q

DA lenses[edit]


The WR version of the 18-55mm kit lens
The DA lenses were designed specifically for the Pentax digital cameras incorporating an APS-C digital sensor. As the APS-C sensor has a smaller surface area than 35mm film, these lenses are not generally considered to be compatible with older cameras. They also lack an aperture ring, limiting their use on cameras that do not support automatic aperture settings. Most of the DA zoom lenses are available in weather resistant (WR) versions to match the weather sealed capabilities of the medium to upper level Pentax DSLR camera bodies. While older models still have the in-body screw drive autofocus system, newer designs marked "DC", "SDM" or "PLM" feature silent, in-lens autofocus motors.
Some lenses of this product line such as the DA 10-17 Fisheye were co-developed with Tokina.[15]
DA-L lenses[edit]
These are lighter and cheaper versions of DA series zoom lenses. They have a plastic (as opposed to steel) mount and lack the quick-shift focusing system of their heavier siblings. They are only sold in kits with entry-level bodies.
DA* lenses[edit]


Pentax DA* 16-50mm f2.8 alongside the smaller Pentax DA 18-55mm f3.5-5.6 lens
The DA* lenses are designed for use with Pentax digital SLR cameras. DA* lenses have higher quality optics and feature a higher level of weather sealing (AW) than most DA lenses (WR). The DA* lenses are more expensive and generally feature improved light transmission and larger aperture openings for better low light performance. Some DA* lenses also feature both body driven screw drive focusing and the Pentax SDM (Supersonic Drive Motor) lens based focus mechanism.
Some lenses of this product line were co-developed with Tokina. Examples include the DA* 16-50 and DA* 50-135.
DA Limited lenses[edit]
These are high quality (mostly prime) lenses with the lens housing made of metal. They usually have a wider maximum aperture compared to zooms but narrower as compared to other prime lenses. This is a compromise as DA Limited lenses are usually made to be much more compact than other primes lenses. In August 2013 the DA Limited lenses were upgraded with Pentax new HD coating, replacing the previous smc coating.[16] The new HD lenses are also available in both silver and black, as opposed to only black.
The DA 35/2.8 Macro was co-developed with Tokina.[12] As of February 2015, the DA 20-40mm F2.8-4 Limited DC WR announced in November 2013[17] stands out for being both the only zoom as well as the only weather resistant lens of the series

DA.jpg
2018-4-22 22:08

TOP

adapter ตัวที่21 คือ Contax G1, G2-pentax Q

In 1994, Contax introduced an apparent oddity: a new line of interchangeable-lens rangefinder cameras that did not use the established Leica-M or Leica-screw lens mounts. The new camera, the Contax G1, used the "G"-mount, an electronic autofocus mount. Critics were quick to accuse the camera of not being a "true" (mechanical) rangefinder, since it used autofocus and electronically-linked mechanisms. But the AF mechanism in the G1, and later the G2 (introduced in 1996), does indeed use a twin-window system much like that of the older mechanical rangefinders—only in electronic form. An advantage of the Contax G finders over other rangefinder cameras is the fact that with lenses from 28mm to 90mm they always show the correct view (zoom rangefinders). The same is true for close focusing, as they also feature parallax correction. Some users reported focusing problems with the Contax G1 at close distances with the 90mm Sonnar and Contax introduced the successor to the Contax G1, the G2, only two years after its introduction in 1996.

CONTAX01.jpg
2018-4-23 16:59


CONTAX02.jpg
2018-4-23 16:59


The successor to the G1, the Contax G2, has improved autofocus performance and a series of new features and ergonomic enhancements. The manual focus wheel was moved from the top deck to the front, to about the same position as where the focusing wheel was located on classic Dresden and Stuttgart Contax rangefinders. The G2 also has two AF modes - continuous, which constantly adjusts focus as the camera is moved, and single, which is a safety mode, focusing as the focus button is pressed, (or shutter release half-pressed) and maintaining this reading until the shutter is released. If the camera fails to find focus in this mode, the shutter cannot be released. The body size and weight increased slightly over the Contax G1. The Contax GD-2 data back can be attached to the Contax G2. It is one of the most sophisticated data backs ever made by any camera manufacturer and features inbetween frame recording of data as well as a Contax-specific recording mode of the exposure data on the first two frames of the film after the last picture has been taken. Initially the Contax G2 was manufactured in Titanium color, a so-called "Millenium Edition" in black color exists as well. There are two versions of the black model, one using paint, and the more preferred black chrome..

ราคาประมาณ 754 บาทค่าส่งฟรี

TOP

adapter ตัวที่ 22 คือ Olympus pen F-pentax Q

The Olympus Pen F, Pen FT and Pen FV were very similar half-frame 35 mm single-lens reflex (SLR) cameras with interchangeable lenses produced by Olympus of Japan between 1963-1966 (Pen F), 1966-1972 (Pen FT) and 1967-1970 (Pen FV).
The original Pen F had a double-stroke film advance and a distinctive logo rendered in a gothic font. The later Pen FT added a single-stroke film advance, and an uncoupled, integrated light meter, which used a system of exposure numbers rather than f-stops. The exposure numbers were added to the aperture rings of later Pen F lenses; the rings could be pulled out and rotated to show conventional f-stops instead. A side-effect of the FT's light meter was a dimmer viewfinder. The Pen FV was essentially a Pen FT with the light meter deleted and the F's brighter viewfinder reinstated.
Half frame meant that the camera used an 18×24 mm vertical (portrait) format, producing twice the pictures on a roll of 135 film as the regular 36×24 mm format. The smaller image format also allowed for a smaller camera and lenses, making the Pen F system one of the smallest SLR systems ever made; the Pentax Auto 110 was smaller, but with a much more limited range of lenses and accessories, and smaller 110 film.
These cameras were somewhat exceptional since they used a rotary focal-plane shutter, rather than the two-curtain focal-plane shutter commonly used in other SLRs. Since this one-piece shutter opens fully before it starts to close, it can synchronize to electronic flash at all shutter speeds.
Pen-F series cameras are occasionally modified to mount standard motion picture camera lenses for use as film test cameras with 35mm motion picture films. The Pen-F frame size is close to the 35mm motion picture Super 35 frame.

PENF01.jpg
2018-4-23 17:05


PENF02.jpg
2018-4-23 17:05


ราคาประมาณ 877 บาท ค่าส่งฟรี

TOP

adapter ตัวที่ 23 คือ Arri S mount-pentax Q

Arri bayonet is a lens mount developed by Arri for use with both 16 mm and 35 mm movie camera lenses. Lenses of this type are distinguished by "outer wings" which both control aperture and bayonet alignment, and are placed in the mount while two pressure tabs are simultaneously depressed at the side of the lens mount on the camera. These tabs provide a relatively strong locking mechanism which allows for higher quality lens seating than offered by the Arri standard mount. Debuting in 1965 with the 16BL, the Arri bayonet mount superseded the Arri standard mount, but cameras with the bayonet mount were also able to accommodate Arri standard lenses due to both mounts having the same flange focal distance and diameter. However, cameras with Arri standard mounts were unable to fit lenses with Arri bayonet mounts, due to the locking mechanism. The bayonet mount began to be superseded around 1980 by the Arri PL mount, which has since become an overwhelmingly predominant mount for most modern cameras, along with Panavision and their PV mount.

ARRI01.jpg
2018-4-23 17:12


ARRI02.jpg
2018-4-23 17:13

TOP

adapter ตัวที่ 24 คือ M39 mount-pentax Q

The M39 lens mount is a screw thread mounting system for attaching lenses to 35 mm cameras, primarily rangefinder (RF) Leicas. It is also the most common mount for Photographic enlarger lenses.
True Leica Thread-Mount (LTM) is 39 mm in diameter and has a thread of 26 turns-per-inch or threads-per-inch (tpi) (approximately 0.977 mm pitch) of Whitworth thread form. Whitworth threads were then the norm in microscope manufacture. The Royal Microscopical Society (RMS) thread, also known as society thread, is a special 0.8" diameter x 36 tpi Whitworth thread used for microscope objective lenses and Leitz was a major manufacturer of microscopes, so the tooling at the plant was already set up to produce the Whitworth thread form. The Soviets in the 1930s produced their early FED cameras in M39×1 (39 mm by 1 mm DIN thread).[citation needed] Early Canon cameras also used a different M39 × 24 tpi thread mount,[1] called "J-mount".
True LTM lenses have a flange focal distance of 28.8 mm, though this is of little importance for lenses used on bellows enlargers.
The Soviets later adopted the LTM mount for their Zenit single-lens-reflex (SLR) cameras, though with the longer optical registration of 45.2 mm, required to allow the mirror room to flip out of the focal path when a picture was taken.
The mount was developed by Oskar Barnack at Leica to provide a system that would allow for the exchange of lenses on their new small film cameras (Leica Type 1 and Leica Type 2), as Zeiss Ikon had indicated that their forthcoming Contax rangefinder cameras would have interchangeable lenses. The LTM system was tested at the request of Leitz on lenses manufactured in small batches by Hugo Meyer in Germany and marketed with a run of Leitz cameras by A. O. Roth in London. The test marketing program was a success, so regular production with Leitz camera bodies and lenses was introduced on the Leica II, and featured on the Leica Standard and Leica III.
Until the 1970s the 39 mm mount was the norm for exchangeable lenses in rangefinder cameras. The high cost of quality lenses led to the dual use camera/enlarger of the lenses, hence the fact that enlargers also accept 39 mm lenses

M39.jpg
2018-4-23 17:15

ผลงานภาพและเนื้อหาทั้งหมดภายในเว็บไซท์เป็นลิขสิทธิ์ของผู้สร้างสรรค์ผลงานนั้นๆ หากชื่นชอบหรือต้องการนำไปเผยแพร่กรุณาแชร์ลิ้งค์กระทู้ไปนะคะ ขอบคุณคะ ^_^

TOP

adapter ตัวที่25 คือ Nikon G mount-pentax Q
NIK-G-01.jpg
2018-4-23 17:20


'G' lenses
January 27, 2013

Many Nikon fans don't like 'G' lenses, because they mark a hard cut in terms of backward compatibility. Nikon had already planned such lenses in the 80s, but the first real sample was introduced in Y2K (it was a consumer AF-Nikkor 70-300mm f/4-5.6 G). All the former 'G' lenses were AF lenses, either with a screwdriver coupling or with an integrated AF drive. 'G' lenses send a distance information to the camera like AF-D lenses do.



'G' lenses works fine in conjunction with every Nikon DSLR. The only restriction is commonly known: the cheaper bodies (such as D40, D60, D3000, D3100, D3200, D5000, D5100, D5200) can't autofocus a lens with a screwdriver coupling. Most of the screwdriver 'G' lenses are cheap zooms, designed for analogue cameras. The only 'serious' lens of this type I remember is the Fisheye Nikkor 10.5mm f/2.8 G DX.

An advantage of the more expensive 'G' lenses over AF lenses with an aperture ring is the weather sealing around the mount.


NIK-G-02.jpg
2018-4-23 17:20


You can mount a 'G' lens on a non-CPU camera, but that makes an almost useless combination! Due to the lack of an aperture ring you will photograph at the smallest possible aperture all the time (e.g. with the AF-S Nikkor 50mm f/1.8 G you always shoot with F16). Even on non-CPU cameras that offer P or S exposure mode (FG, FA, F-301/N2000), a 'G' lens is not usable, because it lacks all the neccessary coupling elements for that!

NIK-G-04.jpg
2018-4-23 17:20


NIK-G-05.jpg
2018-4-23 17:21
NIK-G-03.jpg

TOP

adapter ตัวที่ 26 คือ B4 2/3" Fujinon mount-pentax Q

The B4 lens mount was established in 1994 by the Broadcasting Technology Association (BTA) and is defined in BTA S-1005.[1] This standard defines the physical mount, but also optical properties and some electrical connections. The B4 mount defines the sensor to have a diagonal size of 11 mm (a so-called 2/3" size sensor). The B4-mount is used by practically all 2/3" broadcast lenses and cameras (as of 2017).
The BTA was formed by Japanese broadcaster NHK and included members from Canon, Fuji, Hitachi, Ikegami, JVC, Matsushita (Panasonic), Nikon, Sony and Toshiba. It was formed in the mid 1980's and set various standards for television. It is now part of ARIB, Association of Radio Industries and Businesses.[2][3]

B4-01.jpg
2018-4-23 17:27


The B4-mount has its image projected at 48 mm behind the lens mount flange (in air). The standard defines that a prism splits the light to form separate images planes for the colours red, green and blue. A correction for chromatic aberration is also part of the standard: the red sensor should be 10 μm further, and the blue one 5 μm further than 48 mm. This fitted well with established TV-camera technology using 3 tubes, and also with 3CCD, an upcoming technology at the time of the definition of the standard.[4]
The standard defines that the diagonal size of the projected image should be 11 mm, but does not define a resolution to be used. In the past standard definition was captured at 4:3 aspect ratio. Nowadays, cameras with the same mount capture HD with 16:9 aspect ratio, or even 4K video, thanks to improved lenses.[5]

B4-02.jpg
2018-4-23 17:27


B4-03.jpg
2018-4-23 17:27


The flange of the mount defines the positioning of the lens relative to the image sensor. A ring is present around the opening on the camera which, when rotated, tightly locks the flange of the lens against the camera. A pin on the top side of the lens flange and a hole in the camera mount make sure the lens cannot be mounted at an angle.

B4-04.jpg
2018-4-23 17:27


B4-05.jpg
2018-4-23 17:27

TOP

adapter ตัวที่ 27 คือ Kiev-16U mount-pentax Q

Kiev-16U is Russian 16mm film movie camera. It has lenses with M32x0.5 screw thread mount.
These lenses can be used on other cameras if you have corresponding adapter.
The adapter for sale is purposed for C-mount cameras. Infinity focus ability is preserved.

K16U-01.jpg
2018-4-23 17:36


Krasnogorsk lens review has been a long time coming. I first discovered them in 2013 when I reviewed their little brothers, the Kiev-16U trio. At the time there were no adapters that would allow Krasnogorsk mount lenses to be used on any modern cameras, but shortly after I bought my set, RAFcamera released the Krasnogorsk to MFT adapter, allowing me to use them on my BMPCC.
These lenses were originally designed for Krasnogorsk 16mm film camera, so do not expect to use them on S35 or FF camera. With an adapter you can use them on MFT (M4/3) mount cameras with S16 sensor or S16/ETC crop mode. I believe (unconfirmed) that 20mm & 50mm also just about cover the GH4 in UHD mode.
Just to be clear, these lenses are not called Krasnogorsk, but there are 3 main prime lenses, same as with the Kiev-16U set, often referred to as Krasnogork lenses and although there is also a Metior 17-69mm zoom and a few rare primes with the same mount, this time we will be looking at the popular 3, which can often be bought together as a set.
These lenses are:
Mir-11 12.5mm F2.2
Vega-7 20mm F2
Vega-9 50mm F2.1

K16U-02.jpg
2018-4-23 17:36

TOP

adapter ตัวที่ 28 คือ Nikon S mount (rangefinder)-pentax Q

The Nikon S-mount is a type of interchangeable lens mount used by a series of Nikon 35mm rangefinder cameras (Nikon I, Nikon M, Nikon S, Nikon S2, Nikon SP, Nikon S3, Nikon S4). The lenses were sold under the name Nikkor.
The mount was a copy of the Zeiss Ikon Contax rangefinder mount, however, small differences between the two mean that although Zeiss wide-angle lenses can be used on the Nikon cameras and vice versa, the longer lenses (50 mm and above), if used, will not be able to focus at both close range and infinity.[1]
Nikon made a small number of longer focal length lenses specifically designed to focus properly when mounted on a Contax. These were the 85mm, 105mm, and 135mm lenses. Each was marked with a "C" on the side of the lens barrel. This is not to be confused with a "C" mark used as a suffix to the serial number. Some early Nikkors used this mark to denote that the lenses were coated.
The mount itself has two bayonets, one inside the camera and another outside. Lenses that use the bayonet inside the camera need have no focusing helicoid built into the lens barrel. As a consequence, the 5 cm f/1.4 lens that was normally sold with the body is extremely small (about the size of a golf ball) since the lens contains the optics only. Focusing of such lenses could be done by rotating the toothed wheel on the top front of the camera body or by rotating the lens barrel itself (the distance scale is on the camera body). The external bayonet is used to mount longer and heavier lenses where the built-in helicoid would not be strong enough to rotate the lens barrel. Such lenses are focused using a focusing ring and distance scale on the lens just like typical SLR lenses (the distance scale on the camera body will be covered by the lens flange and thus not visible).
Nikon produced a very large range of Nikkor lenses for these cameras with focal lengths from 21mm to 1000mm. Several other manufacturers including Fuji (now Fujifilm), Komura and Zunow made S-mount lenses at the time of which the Zunow 5 cm f/1.1 lens is a keenly sought after collectors item. In 2002, Cosina Voigtländer manufactured a camera (the Bessa R2S) as well as several lenses for the Nikon S-mount.

NK-S-01.jpg
2018-4-23 17:39


NK-S-02.jpg
2018-4-23 17:39


NK-S-03.jpg
2018-4-23 17:39


NK-S-04.jpg
2018-4-23 17:39


NK-S-05.jpg
2018-4-23 17:39

TOP

adapter ตัวที่ 29 คือ Krasnogorsky mount-pentax Q

Krasnogorskiy zavod im. S. A. Zvereva (Russian: Красногорский завод им. С. А. Зверева, lit. 'Krasnogorsk Works named after S. A. Zverev') is a Russian factory in Krasnogorsk near Moscow which specializes in optical technology. Part of Shvabe Holding (Rostec state corporation).[1]
During the Soviet period it was called Krasnogorsk Mechanical Works (Красногорский механический завод, Krasnogorskiy Mechanicheskiy Zavod). The abbreviation KMZ (КМЗ) is still in common use.

KR2-01.jpg
2018-4-23 17:44


After the German invasion of the Soviet Union in World War II, the Red Army had acute need for precision optical instruments. The existing factories were either inaccessible, such as LOMO in besieged Leningrad, or overloaded with demand, such as FED which had just been evacuated from Kharkiv to Berdsk. The KMZ factory was set up in 1942 near Moscow, which by then was no longer in immediate danger from German troops, on the site of a recently evacuated mechanical plant. Initially the company took over production of scopes and binoculars as well as reconnaissance cameras.
After the end of the war, KMZ began producing photographic lenses in 1945 to the specifications of the Carl Zeiss corporation, whose factory in Jena had been overrun by the Red Army and largely carted off as war reparations. In the post-war years KMZ also began producing the Zorki camera, a close copy of the German Leica II and the Soviet FED, as well as copies of Zeiss medium-format cameras under the name Moskva. These mark the beginning of consumer production at KMZ besides the original military focus of the company. During the following years, KMZ was the main supplier of photographic lenses in the Soviet Union.

KR2-02.jpg
2018-4-23 17:44

ผลงานภาพและเนื้อหาทั้งหมดภายในเว็บไซท์เป็นลิขสิทธิ์ของผู้สร้างสรรค์ผลงานนั้นๆ หากชื่นชอบหรือต้องการนำไปเผยแพร่กรุณาแชร์ลิ้งค์กระทู้ไปนะคะ ขอบคุณคะ ^_^

TOP

กลับไปยังรายบอร์ด