The basic lens design forms are in here, and we can take a deep look into the development of lens design. Lens hoods are often designed to fit onto the matching lens facing either forward, for normal use, or backwards, so that the hood may be stored with the lens without occupying much additional space. Zoom lens design of mobilephone camera with globalexplorer. 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. Later he designed a related lens 19 that turned the outer doublets around, shown in fig. Despite being tiny, its weight makes it feel like a leica.
Made in extremely limited quantities was a very expensive wide angle called the ultragon. The lens comes in a vintagedesign and is available in two versions as black aluminium body 283 grams, or as silvercolored brass version 330 grams. The double gauss lens consists of two backtoback gauss lenses a design with a positive meniscus lens on the object side and a negative meniscus lens on the image side making two positive meniscus lenses on the outside with two negative meniscus lenses inside them. For many other optical devices such as telescopes, microscopes and theodolites where the visual image is observed but often not recorded the design can.
It is confined to cameras where the body allows interchangeable lenses, most usually the rangefinder and slr cameras. This lens is only made in a sony fe full frame emount. The double gauss lens is a compound lens used mostly in camera lenses that reduces optical. The new f2 voigtlander lens adds a finger tab for focusing, and is dedicated to the leica m mount. Its a really nice lens that delivers good pictures, is goodlooking in itself, and i particularly enjoy its ability to literally snap into focus through the viewfinder hard to explain, but with this lens even compared to 50mm and 55mm f1. This guide is a birdseyeview of all the optical systems and lens design forms out there, and. Introdution recently, global optimization algorithm is widely applied in optical design, regardless of fixed focal lens or zoom lens system. Its optical design consists of elements in 11 groups including an aspherical lens element to correct aberrations. For those of you who are interested i can show now the optical 76 design of the zeissrollei planar aka voigtlander colorultron 50mmf1. The tessar design can still hold its own, more than a century on. It is one of the most sought after classic zeiss lenses. Voigtlander ultron 40mm f2 sliin aspherical instruction manual. That is an evocative name for a lens, and a zeiss no less. The new f2 ultron promised a lot highquality optics with an aspherical element along with an extremely compact formfactor, so i decided to switch earlier this year.
Lens is a marvelous and colorcorrected voigtlander ultron 502. There are two copies of this lens on ebay at the time of writing, averaging at around 500 gbp or 700 usd. A lens mount is an interface mechanical and often also electrical between a photographic camera body and a lens. Brian blandford 2005 7 opic lens design tutorial edu plotting a spot diagram now create a map of the pattern of rays falling on the image. Ive always been pleasantly surprised at the build quality of voigtlander lenses, and the f2 delivered on this. The ultron 1,850 is a fine lens, perhaps even groundbreaking for its time. A lens mount may be a screwthreaded type, a bayonettype, or a breechlock friction lock type. But the not all the lens designs are simple lenses, we will look at newer and important lens design forms as well.
It is also compatible with sony apsc emount cameras like my sony a6500, where it provides a focal length equivalent of 97. They definitely achieved that and then some when they also added a modern aspherical element to bring the optical quality to 21st century standards. Unlike its widerangle counterparts, the ultron 35mm lens incorporates a rangefinder calibrated rearfocus helicoid. In addition, lens hoods can offer some degree of physical protection for the lens due to the hood extending farther than the lens itself.
Mount is nikon ais with builtin cpu, so this series has the advantage of aperture control through camera body. In lens design with large computers, proceedings of the conference, institute of optics, government superintendent, rochester, new york. I should note that ive found the 18mp apsc mode of the a7r3 very useful with this lens, as when im shooting events i can switch between the full frame and crop angles of view. The design parameters of optical system are typically to form a complicated multidimensional. Solutions include complete optomechanical and optoelectronic assembly and subassembly systems. The design is presently used in inexpensivebuthighquality fast lenses such as the sony fe 50mm f 1. The hood design is a screw in design rather than a bayonetstyle hood, which means that it screws into the front filter thread on the lens. An interesting new wideangle lens type is a fourcomponent form found commonly on the socalled compact 35mm cameras. I actually have the original box, rear cap, and front cap for this lens, which are all quite rare too. The optical design incorporates two aspherical lens elements for reliable optical performance and soft bokeh at maximum aperture. Every step from setup specifications to finalizing the design for production is discussed in a straight forward, tangible way.
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. Page 1 ultron 40mm f2 sl aspherical instruction manual cosina co. Hartings first design was symmetric 17, but he soon followed it with a much better corrected asymmetric one, shown in fig. The transmission to an optical viewfinder with distance adjustment is guaranteed by focusing coupling up to a nearlimit of about 70 cm depending on the camera, in general, can be focused to 50 cm for example. With corrosion resistant aluminum alloy cage, toughened stainless steel components, modular design, ip65 and ik08 rated covers for added strength, the ultron has been engineered to handle whatever comes its way and extremely durable.
You can see how a new design can evolve around a simple starting point idea or structure. The lens holds 9 elements in 7 groups, resulting in a length of 50. Navitar designs, develops and manufactures innovative optical solutions for clients and enterprises across the globe. Comes with hood and a tiny screw in closeup lens for detail shots. Voigtlander 40mm f2 ultron sl ii handling and features the build and design of this lens is reminiscent of a time lenses were typically made of brass and designed to. Field guide to lens design 2012 bentley publications. It is based on the double gauss optical design but has concave front element which makes this lens unique. The voigtlander 35 f2 ultron and the panasonic s1 cranked to iso 12800. The ultron is an mmount lens, but can get close to 0.
A practical guide to lens design focuses on the very detailed practical process of lens design. Lens design opti 517 syllabus university of arizona. List the lens data in the text window by clicking on len in the text window header. Lenses in a photo system, the lens is most critical lenses are characterized by prime vs. Design by albrecht wilhelm tronnier for voigtlander zeiss. Kidger, intermediate optical design, spie press, 2002. During its original development, voigtlanders goal of the ultron 35mm f2 was to create a vintage looking lens that nods back to the 1950s when lenses were tiny and lightweight. Apo lanthar a variant of the heliar but with an opposite front group. Specifications product name ultron 40mm f2 sl aspherical focal length 40mm maximum aperture minimum aperture lens construction 5 groups 6 elements angle of view 57 aperture blade minimum focus 0. There was a 100mm telomar, and eventually a 35mm f3. This enables the lens to create a very unique bokeh while still being able to capture a high level of detail.
The process of designing lenses is both an art and a science. And this is all human based lens design where the fun part, and most important part, comes before we do any computer optimization. There are two main optical lens design forms that competed for the top spot of the normal lens in the formative years of photographic cameras for lenses. Navitar optical solutions navitar imaging and projection optics. The more airglass surfaces, the more flare, and until lens coating came into widespread use in the 1950s, this was a strong incentive to lens designers to keep the number of groups to a minimum. Voigtlander ultron 40mm f2 sliin aspherical instruction. Early 1952 voigtlander vitessa an ultron 502 rangefinder. The types of optical systems in a lens designers toolbox.
Buy voigtlander ultron 40mm f2 sl iis aspherical lens for nikon f silver rim featuring fmount lensfx format, aperture range. Be it a rain, snow or a storm, ae6 ultron version has got the area covered. Design for near and distant viewing distances is essentially identical. Our hemistar fisheye lenses for curved applications, custom 4k. It has a lot of filed curvature to the point if you focused squarely on the middle of the frame your corners will not look reasonable until f8. I do not have the lens hood, which is a rubber design, but may pick one up some day. The thesis titled photographic fisheye lens design for 35mm format cameras prepared by yufeng yan has been submitted in partial fulfillment of requirements for a masters degree at the university of arizona and is deposited in the university library to be made available to borrowers under rules of the library.
An ultrawide angle lens design with relative illumination analysis is presented. Usa, the voigtlander ultron 50mm f2 on the voigtlander vitessa 1951, west. Fast aperture and excellent resolution are some of the benefits of fixed focal length lenses. The people at lightmachinery are veterans of the laser and optics world with many years of experience in the areas of optical design, high power lasers, optical fabrication, laser systems, metrology, thin film coatings and custom machinery fabrication. Py photo yodobashi rangefinder voigtlander ultron 35mm. If youre interested, you can get the pdf version too. Zoom lens design of mobilephone camera with global. The double gauss lens consists of two backtoback gauss lenses a design with a.
This lens was the precursor of the voigtlander color ultron 50mm f1. We design and manufacture worldclass projection lenses. Other references welford, aberrations of optical systems laikin, lens design smith, modern lens design malacara and malacara, handbook of lens design korsch, reflective optics kingslake, optical system design kingslake, history of the photographic lens cox, a system of optical. The front end of the hood is threaded itself, so you can still use filters you would just screw them into the lens hood instead of the lens itself. Get answers to your questions in our photography forums. This lens is characterized by a triplet construction followed by a rear element that is strongly meniscusshaped, convex to the image plane. Minimum aperture is f16, and lens has unit focusing allowing a more precise adjustment. This lens has much less astigmatism than either conventional triplets or tessars and can. The voigtlander 35mm f2 ultron nick bedford, photographer. As 35mm lenses are often said to be the standard lenses in the world of rangefinder cameras, therere many kinds of 35mm lenses made by leica and carl zeiss. This is an ultimate guide of lens design forms, the optical systems that are used in our world. Lens design, camera zoom lens, cmos sens or, optimization, global explorer, mobilephone camera lens 1. Jun 12, 2014 voigtlander 40mm f2 ultron sl ii handling and features the build and design of this lens is reminiscent of a time lenses were typically made of brass and designed to last longer than you might think.
Its optical design consists of elements in 11 groups including an aspherical lens element to. Imaging lenses and projection optics navitar optical. It is also used as the basis for faster designs, with elements added, such as a seventh element as in both canon and nikons 50 mm f 1. The percival philosophy is similar to that used in modern spectacle lens design. Make offer vintage voigtlander vitessa film camera color skopar 1. Optical design consultations, feasibility studies, and complete custom optical design services. Description it features an allmetal lens barrel construction, a 39 mm leica compatible l screwmount and a 10 bladed aperture which creates very pleasing outoffocus highlights. Another more recent example of this lens is a lens design by miyazakisan, of msoptical, the aporis 5mm f2. Anonymous, asahi pentax spotmatic ii operating manual. So, by your data, the old design has a voightlaender color ultron cloned design, and the later had their design borrowed from the contax planar f1.
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