Biogon lens design book

While advancements in the field over the past two centuries have done much to transform it from the former category to the latter, much of the lens design process remains encapsulated in the experience and knowledge of industry veterans. With a wideangle lens, the focal length is significantly shorter than the diagonal of the picture format. Biogon lenses arent ideal in terms of their lens design for shooting with digital cameras. This lens taught the russians in kiev that copying this lens would be too difficult and expensive and that it would be impossible to duplicate the zeiss chrome finish. And modern lenses for small formats are so complicated that maybe classifying some of them isnt possible.

Design examples of several widely used modern lenses are provided. Then based on my impressions of the biogon design, the 38mm superwide camera, and extended reading, i purchased a new zeiss zm biogon 21mm f4. When mounting the contax 28mm g users immediately notice most of the lens fits inside the camera body. A practical guide to lens design focuses on the very detailed practical process of lens design. The biggest gotcha with this zeiss lens is its incompatible 43 x 0. Part of the lens design form is from the configuration, as it is important to be able to see the configuration of the lens and decipher what it means. Unless zeiss is planning to introduce this lens in nikon s mount that used 43 x 0.

Optically the design retains the recalculation done in 1960, but the lens barrel has been completely redesigned presaging the design of the next version of the flektogon. Lenses produced under the name metrogon also cite the us patent of the topogon design. Apr 24, 2019 this would be a good moment to acknowledge the cameras other deficiency, namely, that it cannot accept every lens made for the g mount. The topogon is a double gauss design arranged in a symmetrical design. He discusses the mir1 in his book photographic optics 1978, on page 369. It works as well as the leica lens for half the price, if the larger size doesnt bother you. The zeiss 28mm zm biogon is a zeisss answer to the mmount 28mm lens. Anyone can master the fundamentals of game design no technological expertise is necessary. Applying this bit of a basic understanding of optical design to looking at zeisss zm lens line up on paper at least i initially came to the. This makes the contaxmount lens less suitable for metering with leica m, and unsuitable for use with the ccd of the leica m9. In fact, moderate wideangle lenses have been made with the design structure of the conventional lens types like tessar and planar. Granted permission by zeiss, full owner of the biogon and distagon design name and former patents. Many articles of the xpert corner are based on ricos book.

A lens with such a large field angle that it can capture as much of the photographers surroundings as possible in a single shot this is the origin of the name biogon. The authors of books on lens designs mostly but dont entirely agree on classifying lenses since there is some judgement involved. This title is directed primarily towards health care professionals outside of the united states. Nasse wrote a series of technical papers for carl zeiss detailing their modern lens history and genealogy. Its optical performance is better than the leica summicronm 35mm f2 19791996 and about the same as leicas newest leica summicronm 35mm f2 asph. The basic biogon design, a zeiss trademark, has been invented in 1951 by the famous dr. This type of lens is not suitable for use with slr cameras, as its design requires a short back focal distance distance from the last lens vertex to the film plane. You must experience the culture and see the sights. Reliable information about the coronavirus covid19 is available from the world health organization current situation, international travel. A book of lenses shows that the same basic principles of psychology that work for board games, card games and athletic games also are the keys to making topquality video games. What im also interested in discovering is just how much of the character i see and love in my 50mm sonnar can be found in other zeiss m lenses. Similar to all g series lenses, the biogon is a masterfully built, beautifully finished, and impeccably designed assemblage of glass and metal. The biogon opened up new visual territories that photogs had literally never seen before and soon became a favorites for the pros who could afford it. Book a hotel near golf club burggolf gendersteyn veldhoven.

You are getting all of the build quality and performance in a much smaller, lighter but not less expensive package in the sony emount loxia lens. The process of designing lenses is both an art and a science. There are many 35mm lenses to chose from when youre the lucky owner of a rangefinder camera. Get answers to your questions in our photography forums. However, the three lens types, distagon biogon and hologon also display major differences along with this common feature. Was curious what the differences are between the zeiss lens designs we all know and love, and came across this old article outlining the lens element designs, where the iris is typically placed and the proscons for the planar, sonnar, distagon, and biogon designs. With travelocity s long list of cheap hotels near golf club burggolf gendersteyn veldhoven, youre sure to find the perfect place to stay within your preferred budget. The slim lens design is easy to grip and focus, and uses a standard 46 mm filter diameter. Carl zeiss in oberkochen used the first two letters of the lens.

The kids are out of school, you and the spouse have two weeks off, and its about time to get the heck out of dodge. Similar to all g series lenses, the biogon is a masterfully built, beautifully finished, and impeccably designed assemblage of glass and. Good game design happens when you view your game from many different perspectives. Detailing design methods for a variety of lens forms, this book shows that fixed focus and zoom lenses can be optimized, starting from planeparallel surfaces, in a brief time on a modern fast pc compared to traditional tools that. For the soviets, copying a lens as great as the biogon was a nobrainer. The zeiss biogon for the swc is an abbreviated 8 element design from the original 10 element design. The variosonnar is a carl zeiss photographic lens design named in relation to the zeiss sonnar. When introduced in 1954, there was literally no other super wide competitors. Difference between zeiss planar, sonnar, distagon and. Nov 10, 2019 home file exchange site for lens designs. This 9element lens based on the carl zeiss biogon design features outstanding image quality, high speed at a small size, stunning resolving power and next to zero distortion a unique combination for an mbayonet camera.

Currently i use the zeiss zm 50 f2 planar and the zeiss 21 f4. A comprehensive guide to camera lens design and zeiss. Biogon t 2828 zm the universal traveler this lens provides the widest angle of view that can be used with the cameras builtin viewfinder it comprises 8 optical elements and is based on the symmetric carl zeiss biogon design this wideangle lens is a. Schneider, lieca, and hasselblad have used the design of the biogon for their own lens. Tessar 1902, planar 1896, sonnar 1929, biogon 1951 and distagon 1958. Book your stay hartparochie oss hotels with us at travelocity and enjoy the trip of a lifetime. Oct 11, 2017 its prewar ancestor was the contaxmount zeiss biogon 35mm f2.

The design of photographic lenses for use in still or cine cameras is intended to produce a lens that yields the most acceptable rendition of the subject being photographed within a range of constraints that include cost, weight and materials. The mamiya 43mm lens appears to be a direct copy of the original 10 element biogon design. Well match a lower price and refund the difference. In our manufacturing facilities in germany we have unrivalled experience in. The hologon is a modification of the biogon lens design. The largely symmetrical biogon optical design enables the use of very compact, moderate to extremely wideangle lenses, including with rangefinder and mirrorless system cameras. In spite of that, a lot of lens design books and textbooks that i have read rely. Ludwig bertele 19001985 who was also the leading designer of the zeiss sonnar series. First is the obliqueness of angle the light rays hit the focal plane. A zoom lens derivative of the sonnar, the variosonnar also exists, in which a number of lens groups are replaced with floating pairs of lens groups. At 90 the focal length is approximately half as long as the formats diagonal. As far as he knows, its the same cz biogon lens design sold to photographers for years. Numerous and frequentlyupdated resource results are available from this search. The reason for this is that the rear elements of the lens project so far into the body of the camera that the angle of light leaving the lens and hitting the outer areas of the sensor is too oblique.

Optical lens design is the process of designing a lens to meet a set of performance requirements and constraints, including cost and manufacturing limitations. Photographers in tilburg, netherlands, book a photographer. Its reputation precedes it as an excellent piece of glass, but however objectively good it is, thats not the sum total of what im interested in. Angle, was built to utilize the exceptional 38mm f4. The range of gmount lenses comprises a complete set the 16mm hologon, the 21mm biogon, the 28mm biogon, the 35mm planar, the 45mm planar, the 90mm sonnar, and the 3570 variosonnar. Super wideanglelenses are those with focal lengths between the length of the short side of the format and half the diagonal. The art of game design is a fabulous, fun book, a mustread, a wonderful amalgam of philosophy, psychology, criticism, and analysis of games as both literary genre and practical design. The zeiss ikon contax camera repair website lenses for sale. The slim lens design is easy to grip and focus, and uses a standard 46 mm filter diameter similar to many of the other zm lenses and allows filters to be. On the other hand i love the character and the rendering of the zeiss loxia lenses. Additionally, since im not really a fan of making my rangefinder equipment any bigger than i absolutely have to, shooting a lens thats design ethos is around a compromise in terms of larger size in favour of higher quality, it just didnt appeal as an overall package to me. Since its design protrudes from the front of the lens, it also affords some protection to the front element of the lens against accidental impact. We have developed it in 1954 on the basis of the optical scheme of flektogon of dr. A huge advantage of this zeiss lens is that you can stack two 46mm filters on it without vignetting on fullframe.

It is the prototype lens hand manufactured by the russians for the purpose of exploring the possibility of copying the german biogon lens design and to manufacture copies for sale. The zeiss biogon t 35mm f2 zm is a nonretrofocus wideangle lens for leica m mount cameras. However it was not until 1954 that the lens was manufactured. No matter what youre looking for or where you are in the world, our global marketplace of sellers can help you find unique and affordable options. Zeiss wide angle lenses all share the common gon ending, which is derived from the greek word gonia meaning angle. The problems of photographic lens design, creating a lens for a task that would cover a large, flat image plane, were well known even before the invention of photography due to the development of lenses to work with the focal plane of the camera obscura. The invention of the camera in the early 19th century led to an array of lens designs intended for photography. Number of lenses approximate number of spots over the field as a function of the number of lenses linear for small number of lenses. The lens is made in germany and incorporates a very complex optical design. Jesse schells new book, the art of game design, is a marvelous introduction to game design by a true master of the form. Anyone can master the fundamentals of game designno technological expertise is necessary. The 21 biogon needs pp to deal with the color shifts. Large format lenses from carl zeiss oberkochen 19501972. Field guide to lens design 2012 bentley publications.

It was developed by carl zeiss in approximately 1937 and manufactured in jena, then a redesign in oberkochen. Due to its wide angle coverage, and the small distortion, it and the metrogon became the standard aerial lens until it was displaced in 1952. Lens elements werent coated back then, so for this 85mm as well as for their 50mm lenses they came up with a unique design where the seven elements were grouped as 3. A lens design form can be a combination of positive optical power and negative optical power lens elements that share characteristics with each other. The zeiss loxia 35mm f2 biogon quickly shows part of what makes the loxia series special when you compare it to the milvus 35mm f2 for nikon and canon dslrs. If it is about the same as the long side of the format, the lens is considered to be a moderate wideangle lens. Parameters include surface profile types spherical, aspheric, holographic, diffractive, etc. In his three part series, he discussed 5 lens designed that changed the world. When i was a kid i already loved to see the world trough a lens of a camera. The last three catalogues have listed the following item. Etsy is the home to thousands of handmade, vintage, and oneofakind products and gifts related to your search. This book holds a unique place in the optics literature. As you read above, zeiss developed the sonnar 85mm f2 lens for their contax rangefinder system in the 1930s.

In spite of that, a lot of lens design books and textbooks that i have read rely heavily on the derivations of mathematical equations, without actual lens design data and figures and graphs, especially lens design diagrams. When we learned of ricks new, hardcover book the hasselblad system. Search for photographers and find one within your budget. Find and book a professional photographer in tilburg, netherlands with truefie. The word biogon is a trademark and may not be used by mamiya, however the patents on the design itself have long since expired. Zeiss biogon t 35mm f2 zm the 35mm lens is the workhorse of rangefinder photography, giving a slightly wide perspective that lends itself to creative framing and focus. The zeiss lens shade for loxia 35mm f2 biogon t lens helps to block stray light from entering the lens, thereby reducing the likelihood of lens flare and ghosting. The largely symmetrical biogon optical design enables the use of very compact, moderate to extremely wideangle lenses, including with rangefinder and mirrorless system. Leading the way of contax lens design was the legendary 214. A schematic diagram is not good enough in my opinion, i. Oclcs webjunction has pulled together information and resources to assist library staff as they consider how to handle coronavirus. The camera was made from 1954 to 1957 with essentially the cameras from the first two years 195455 having the name supreme wide angle and the cameras made in 195657 being. The c biogon is a special lens both sentimentally for me, and optically, and i simply want to shout its praises from the top of a mountain.

Rudolf kingslake is regarded as the american father of lens design. Zeiss has been a pain in leicas side ever since the 1930s, and this great zm lens is no help. Biogon series was created by ludwig bertele in 1935. Topogon is a wide field originally 100 degrees field of view, symmetrical photographic lens designed by robert richter in 1933 for zeiss carl fa. Ever since the lens design principles by zeiss are given special names, which.

It proved to be so good that i even sent back my samyang af 35mm f2. Similar rules governed the use of the established prewar lens names such as biogon, planar, sonnar, tessar, etc. The lens of choice when a single lens has to do it all. Design dates of the new zeiss lenses for view cameras start with a 105mm f3. In many ways the history of carl zeiss ag is the history of photographic lenses.

The handbook of optics, from the optical society of america, is a tremendously valuable resource for all optics practitioners each chapter is a great introduction for a specific optics subspecialti. Designed to prevent unwanted stray light from entering the lens. Zeiss biogon 2,8 21 mm lens since their introduction, lenses branded biogon are usually approximately symmetrical semisymmetrical wideangle design with a usable angle of view of 90 or more. The writeup is a bit long, so i will not quote from it here. Biogon is the brand name of carl zeiss for a series of photographic camera lenses, first. Conrady in applied optics and optical design and rudolph kingslake in lens design. On that day she gifted me a gorgeous zeiss ikon zm and a zeiss 35mm f2. The biogon t 235 zm is the fastest lens in the biogon family, offering outstanding performance with nearly distortionfree results. They are the planar, the tessar, the biogon, the distagon, and the hologon click on these links to download the original pdf files. The lens design used was that of a true wideangle rather than a retrofocus type. It adds impressive building blocks to the foundation established by a. Every step from setup specifications to finalizing the design for production is discussed in a straight forward, tangible way.

This lens type has a variable focal length which can replace a series of lenses for a certain. There are very good reasons that this zeiss lens is better optically than leica lenses. They have it mounted in a copal shutter by an independe nt lens technician in ca. Automatic and quasiautonomous computational methods and techniques is the first book that interactively describes the newest modern lens design tools. A dynamic, wide complement to the standard planar 50 lens, it is composed of 8 optical elements and is based on the symmetrical carl zeiss biogon lens design concept. Since their introduction, lenses branded biogon are usually approximately symmetrical semisymmetrical wideangle design with a usable angle of view of 90 or more.

Furthermore, i dont really shoot 35mm lenses very often anyway. The universal traveler this lens offers the widest angle of view possible using the cameras builtin viewfinder. Lens design fundamentals, second edition, is the most comprehensive treatise to be published on the subject of lens design. Finally, you can stay near the sites youve only read about in books. Biogon is zeiss trademark for reasonably symmetrical wideangle lenses. The contaxmount lens has less distortion, due to its design placing the rear nodal point closer to the image plane. Ever since the lens design principles by zeiss are given special names, which nowadays, some for more than a century later, are still used.

Leica m lenses have a reputation for being sharp, compact, and expensive. Wideangle lenses also share at least two design challenges. Apr 02, 2019 volosov was the soviet lens master at the vavilov state optical institute, and is known as the father of soviet optics. The biogon lens, designed for 35mm coverage, had been previously made available for contax cameras and subsequently in 4 by 5 inch design for view camera applications.