Recommended Zoom Lens for Canon
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A 7.5X Afocal Zoom Lens Design and Kernel Aberration Correction Using Reversed Ray Tracing Methods
A 7.5X Afocal Zoom Lens Design and Kernel Aberration Correction Using Reversed Ray Tracing Methods Item Type text; Electronic Thesis Authors Zhou, Xi Publisher The University of Arizona. Rights Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction, presentation (such as public display or performance) of protected items is prohibited except with permission of the author. Download date 23/09/2021 23:12:56 Link to Item http://hdl.handle.net/10150/634395 A 7.5X Afocal Zoom Lens Design and Kernel Aberration Correction Using Reversed Ray Tracing Methods by Xi Zhou ________________________________ Copyright © Xi Zhou 2019 A Thesis Submitted to the Faculty of the JAMES C. WYANT COLLEGE OF OPTICAL SCIENCES In Partial Fulfillment of the requirements For the degree of MASTER OF SCIENCE In the Graduate College THE UNIVERSITY OF ARIZONA 1 2 Table of Contents List of Figures ................................................................................................................................. 5 ABSTRACT .................................................................................................................................... 9 KEYWORDS ................................................................................................................................ 10 1. INTRODUCTION .................................................................................................................... 11 1.1 Motivation .......................................................................................................................... -
Starkish Xpander Lens
STARKISH XPANDER LENS Large sensor sizes create beautiful images, but they can also pose problems without the right equipment. By attaching the Xpander Lens to your cinema lenses, you can now enjoy full scale ability to shoot with large sensors including 6K without compromising focal length capability. The Kish Xpander Lens allows full sensor coverage for the ARRI Alexa and RED Dragon cameras and is compatible for a wide range of cinema lenses to prevent vignetting: . Angenieux Optimo 17-80mm zoom lens . Angenieux Optimo 24-290mm zoom lens . Angenieux Compact Optimo zooms . Cooke 18-100mm zoom lens . Angenieux 17-102mm zoom lens . Angenieux 25-250mm HR zoom lens Whether you are shooting with the ARRI Alexa Open Gate or Red Dragon 6K, the Xpander Lens is the latest critical attachment necessary to prevent vignetting so you can maximize the most out of large sensor coverage. SPECIFICATIONS Version 1,15 Version 1,21 Image expansion factor: 15 % larger (nominal) Image expansion factor: 21 % larger (nominal) Focal Length: X 1.15 Focal length 1.21 Light loss: 1/3 to ½ stop Light Loss 1/2 to 2/3 stop THE XPANDER LENS VS. THE RANGE EXTENDER Even though the Lens Xpander functions similar to the lens range extender attachment, in terms of focal length and light loss factors, there is one fundamental difference to appreciate. The Xpander gives a larger image dimension by expanding the original image to cover a larger sensor area. This accessory is designed to maintain the optical performance over the larger image area. On the other hand, the range extender is also magnifying the image (focal length gets longer) but this attachment only needs to maintain the optical performance over the original image area. -
Refractive Optical Design Systems • Many Different Types of Lens Systems
Refractive Optical Design Systems • Many different types of lens systems used • Want to look at each from the following Performance Requirements • Field of View: How much of a object is seen in the image from the lens system • F# • Packaging requirements • Spectral Range Single Element • Poor image quality • Very small field of view • Chromatic Aberrations – only use a high f# • However fine for some applications eg Laser with single line • Where just want a spot, not a full field of view Landscape Lens • Single lens but with aperture stop added • i.e restriction on lens separate from the lens • Lens is “bent” around the stop • Reduces angle of incidence – thus off axis aberrations • Aperture either in front or back • Simple cameras use this Achromatic Doublet • Brings red and blue into same focus • Green usually slightly defocused • Chromatic blur 25 less than singlet (for f#=5 lens) • Cemented achromatic doublet poor at low f# • Slight improvement if add space between lens • Removes 5th order spherical Cooke Triplet Anastigmats • Three element lens which limits angle of incidence • Good performance for many applications • Designed in England by Taylor at “Cooke & Son” in 1893 • Created a photo revolution: simple elegant high quality lens • Gave sharp margins and detail in shadows • Lens 2 is negative & smaller than lenses 1 & 3 positives • Have control of 6 radii & 2 spaces • Allows balancing of 7 primary aberrations 1. Spherical 2. Coma 3. Astigmatism 4. Axial colour 5. Lateral colour 6. Distortion 7. Field curvature • Also control -
Canon EOS RP Technische Daten
Canon EOS RP Technische Daten Seite nach Kategorie Betriebsumgebung Ca. 0 – 40 °C, max. 85 % rel. Luftfeuchtigkeit Abmessungen (B x H x T) 132,5 × 85,0 × 70,0 mm Gewicht (nur Gehäuse) Ca. 440 g (485 g mit Akku und Speicherkarte) Technische Daten 26,2 Megapixel CMOS-Vollformatsensor DIGIC 8 Prozessor Kompatibel mit EF und EF-S Objektiven über einen Adapter Dual Pixel CMOS AF 4K Video WLAN und Bluetooth Technische Spezifikationen im Detail Bildsensor Typ CMOS-Sensor (35,9 x 24 mm) Pixel effektiv Ca. 26,2 Megapixel Pixel gesamt Ca. 27,1 Megapixel Seitenverhältnis 3:2 Tiefpassfilter Integriert, feststehend Sensorreinigung EOS Integrated Cleaning System Farbfilter RGB-Primärfarben Bildprozessor Typ DIGIC 8 Objektiv Objektivanschluss RF (EF und EF-S Objektive können mit dem Bajonettadapter EF-EOS R, dem Bajonettadapter mit Objektiv-Steuerring EF-EOS R oder dem Bajonettadapter mit Einsteckfilter EF-EOS R verwendet werden. EF-M Objektive sind nicht kompatibel) Brennweite Kein Brennweitenumrechnungsfaktor mit RF und EF Objektiven, Brennweitenumrechnungsfaktor 1,6x mit EF-S Objektiven Scharfstellung Typ Erkennung der Phasendifferenzen auf dem Bildsensor (Dual Pixel CMOS AF) Bildfeldabdeckung 88 % horizontale und 100 % vertikale Bildfeldabdeckung 10 AF-Arbeitsbereich LW -5 bis 18 (bei 23 °C und ISO 100) AF-Funktionen One-Shot Servo AF AF-Messfeldwahl Automatisch: Gesicht + Nachführung + AF Augenerkennung Manuell: 1-Punkt AF (die Größe des AF-Feldes kann verändert werden) 4.779 wählbare AF-Positionen Spot AF Manuell: AF-Messfelderweiterung 4 Punkte (oben, unten, links, rechts) Manuell: AF-Messfelderweiterung (umgebende Felder) Manuell: Zonen-AF (alle AF-Felder sind in 9 Zonen aufgeteilt) AF-Messwertspeicherung Durch Drücken des Auslösers bis zur Hälfte oder der AF ON Taste im Modus One-Shot AF. -
Choosing Digital Camera Lenses Ron Patterson, Carbon County Ag/4-H Agent Stephen Sagers, Tooele County 4-H Agent
June 2012 4H/Photography/2012-04pr Choosing Digital Camera Lenses Ron Patterson, Carbon County Ag/4-H Agent Stephen Sagers, Tooele County 4-H Agent the picture, such as wide angle, normal angle and Lenses may be the most critical component of the telescopic view. camera. The lens on a camera is a series of precision-shaped pieces of glass that, when placed together, can manipulate light and change the appearance of an image. Some cameras have removable lenses (interchangeable lenses) while other cameras have permanent lenses (fixed lenses). Fixed-lens cameras are limited in their versatility, but are generally much less expensive than a camera body with several potentially expensive lenses. (The cost for interchangeable lenses can range from $1-200 for standard lenses to $10,000 or more for high quality, professional lenses.) In addition, fixed-lens cameras are typically smaller and easier to pack around on sightseeing or recreational trips. Those who wish to become involved in fine art, fashion, portrait, landscape, or wildlife photography, would be wise to become familiar with the various types of lenses serious photographers use. The following discussion is mostly about interchangeable-lens cameras. However, understanding the concepts will help in understanding fixed-lens cameras as well. Figures 1 & 2. Figure 1 shows this camera at its minimum Lens Terms focal length of 4.7mm, while Figure 2 shows the110mm maximum focal length. While the discussion on lenses can become quite technical there are some terms that need to be Focal length refers to the distance from the optical understood to grasp basic optical concepts—focal center of the lens to the image sensor. -
Astrophotography a Beginner’S Guide
Astrophotography A Beginner’s Guide By James Seaman Copyright © James Seaman 2018 Contents Astrophotography ................................................................................................................................... 5 Equipment ........................................................................................................................................... 6 DSLR Cameras ..................................................................................................................................... 7 Sensors ............................................................................................................................................ 7 Focal Length .................................................................................................................................... 8 Exposure .......................................................................................................................................... 9 Aperture ........................................................................................................................................ 10 ISO ................................................................................................................................................. 11 White Balance ............................................................................................................................... 12 File Formats .................................................................................................................................. -
变焦鱼眼镜头系统设计 侯国柱 吕丽军 Design of Zoom Fish-Eye Lens Systems Hou Guozhu, Lu Lijun
变焦鱼眼镜头系统设计 侯国柱 吕丽军 Design of zoom fish-eye lens systems Hou Guozhu, Lu Lijun 在线阅读 View online: https://doi.org/10.3788/IRLA20190519 您可能感兴趣的其他文章 Articles you may be interested in 鱼眼镜头图像畸变的校正方法 Correction method of image distortion of fisheye lens 红外与激光工程. 2019, 48(9): 926002-0926002(8) https://doi.org/10.3788/IRLA201948.0926002 用于物证搜寻的大视场变焦偏振成像光学系统设计 Wide-angle zoom polarization imaging optical system design for physical evidence search 红外与激光工程. 2019, 48(4): 418006-0418006(8) https://doi.org/10.3788/IRLA201948.0418006 高分辨率像方远心连续变焦投影镜头的设计 Design of high-resolution image square telecentric continuous zoom projection lens based on TIR prism 红外与激光工程. 2019, 48(11): 1114005-1114005(8) https://doi.org/10.3788/IRLA201948.1114005 紧凑型大变倍比红外光学系统设计 Design of compact high zoom ratio infrared optical system 红外与激光工程. 2017, 46(11): 1104002-1104002(5) https://doi.org/10.3788/IRLA201746.1104002 硫系玻璃在长波红外无热化连续变焦广角镜头设计中的应用 Application of chalcogenide glass in designing a long-wave infrared athermalized continuous zoom wide-angle lens 红外与激光工程. 2018, 47(3): 321001-0321001(7) https://doi.org/10.3788/IRLA201847.0321001 三维激光雷达共光路液体透镜变焦光学系统设计 Design of common path zoom optical system with liquid lens for 3D laser radar 红外与激光工程. 2019, 48(4): 418002-0418002(9) https://doi.org/10.3788/IRLA201948.0418002 第 49 卷第 7 期 红外与激光工程 2020 年 7 月 Vol.49 No.7 Infrared and Laser Engineering Jul. 2020 Design of zoom fish-eye lens systems Hou Guozhu1,2,Lu Lijun2* (1. Industrial Technology Center, Shanghai Dianji University, Shanghai 201306, China; 2. Department of Precision Mechanical Engineering, Shanghai University, Shanghai 200444, China) Abstract: The zoom fish-eye lens had the characteristics of much larger field-of-view angle, much larger relative aperture, and much larger anti-far ratio. -
Lser's Glide to Digiscoping
USEr’s gUIDE Digiscoping THE DIGITAL ERA has spawned a plethora of new technologies, revolutionising the way we capture and communicate information. Birding has been affected in many ways, from the way we store data on birds, record and play back their calls, and share our observations with fellow birders around the world. But for many amateur birders, one of the biggest changes has resulted from the replacement of film with digital cameras. In a series of two articles, Peter Ryan discusses the pros and cons of digiscoping and digital SLR cameras. ntil recently it was axiomatic that you could be either a birder or a bird photographer. To take good Upictures of birds required an ar senal of expensive equipment and endless patience. You would get to know your subjects intimately, but you’d hardly race around seeing large numbers of birds. The advent of digital cameras has changed this dramatically, by allowing even the keenest of twitchers to capture images of the birds they see. The revolution started with digiscop- ing. This new approach to bird photo- graphy uses compact digital cameras to capture surprisingly good-quality images through traditional birding optics – usually a telescope (often called a spot- ting ’scope), but you can also take pictures through binoculars. For some time there have been adapters which allow a spotting ’scope to be used as a telephoto lens on a single-lens reflex (SLR) camera body, but the quality of the images isn’t competi- tive because the amount of light coming PETER RYAN through a ’scope is not really adequate Attaching a digital SLR to a telescope may seem like a perfect solution to many of the for film photography. -
Photography 2021 Equipment Recommendation
DEPARTMENT: PHOTOGRAPHY 2021 EQUIPMENT RECOMMENDATION Student work: Nicole van Niekerk FIRST YEAR / ONE YEAR PROGRAM + Digital DSLR camera body or Interchangeable Mirrorless camera + 1x Good multi-purpose zoom lens, wide to telephoto range (16-55mm) (Generic lenses like SIGMA and Tamron is more than adequate. Please discuss your options with the relevant service providers attached later in the document.) + 1x Reflector board (107 - 110cm). Please do not buy a reflector smaller than this. + 1x Strong sturdy tripod (invest in a good tripod that can support your camera and lens) + 1x Cable Release + 1x Extra Camera battery + 2x Memory card (with a write speed of atleast 150mb/s) + 1x Grey card + Cleaning kit RECOMMENDED CAMERA BODIES FujiFilm, Nikon, Canon and Sony are the only four digital camera brands we recommend. Although there are other great brands on the market; we have found that in terms of product range and support these brands have a very strong presence in South Africa. The following camera bodies are especially popular: (Please refer to the FAQ section at the end of the document for more information) 02 2021 Photography Equipment List Open Window FUJIFILM MIRRORLESS CAMERAS FUJIFILM X-T30 FUJIFILM X-T3 FUJIFILM X-S10 FUJIFILM X-T4 FUJIFILM GFX-50S FUJIFILM GFX-100 FUJIFILM LENSES FUJIFILM XF 16 – 55MM F2.8 NICE TO HAVE (FUJIFILM XF 56MM F1.2) FUJIFILM XF 16 – 80MM F4 NICE TO HAVE (FUJIFILM XF 80MM F2.8 MACRO) 03 2021 Photography Equipment List Open Window NIKON MIRRORLESS NIKON Z6 II NIKON Z7 II NIKON Z5 NIKON MIRRORLESS LENSES -
Variogon - Zoom Lenses , Jos
Variogon - Zoom Lenses , Jos. Schneider Optische Werke GmbH What is a Variogon? „Variogon" is the brand name for a vario-lens made by "Jos. Schneider Optische Werke GmbH". But what is a vario-lens? It is a lens that has no fixed focal length and can be changed by the user with certain limitations. This is accomplished without having to bring the image of the subject into focus again and again each time the focal length is changed. A lens of this kind is also known as a zoom lens. Fig. 1: Optical and mechanical competence in construction and production: Cross section of the 30-fold zoom-lens Variogon 1.8 / 6 - 180 mm for Super-8mm narrow-gauge film Vario-lenses were already under development at Schneider-Kreuznach by the mid-50s.Because of our extensive experience in optical calculation, construction, and full-scale serial production, the vario-lenses were found in a wide range of applications: For television ( TV-Variogon ) and surveillance cameras in the still photography ( single-lens reflex cameras ) - here again in the 35 mm and medium-format sector for enlargers in the darkroom ( Betavaron ) for variable still projection ( Vario-Cine-Xenon ) in various OEM applications for designed specifically for certain customers, e.g., in printing, scanning and reproduction technology (Variomorphot ). In the most recent technical innovation in photography, digital photography, the Variogon has also assumed a position of importance. As an integrated lens with variable focal length, it finds use in the series of various Kodak EasyShare zoom digital cameras. The following list offers a short historical retrospective, together with background information about the "Variogon"-lens in its extremely widely varied areas of use: Different areas of application of a zoom-lens Variogon lenses for narrow-gauge film Variogons in television technology 35 mm- / medium-format vario-lenses Enlarging technology with Betavaron file:///D:/1%261-SK-Website-20110517/knowhow/variogon_e.htm[07.03.2013 10:56:25] The way a zoom lens works, Jos. -
Digicover 0421
digiCOER 05.2021 Marke digiCOVERProdukteArtikelnr. Name/Deutsch UVP 2,5 4/3G412 6,4cm digiCOVER Hybrid Glas Displayschutz 6,4 cm (2,5 Zoll) (1-er PacK) 19,9 2,7 4/3G403 6,8 cm digiCOVER Hybrid Glas Displayschutz 6,8 cm (2,7 Zoll) (1-er PacK) 19,9 2,7 16/9G403-169 6,8 cm digiCOVER Hybrid Glas Displayschutz 6,8 cm (2,7 Zoll) (1-er PacK) 19,9 2,8 4/3G413 7,1 cm digiCOVER Hybrid Glas Displayschutz 7,1 cm (2,8 Zoll) (1-er PacK) 19,9 2,8 16/9G413-169 7,1cm digiCOVER Hybrid Glas Displayschutz 7,1 cm (2,8 Zoll) (1-er PacK) 19,9 3,0 G4144/3 7,6cm digiCOVER Hybrid Glas Displayschutz 7,6 cm (3,0 Zoll) (1-er PacK) 19,9 3,0 16/9G414-169 7,6cm digiCOVER Hybrid Glas Displayschutz 7,6 cm (3,0 Zoll) (1-er PacK) 19,9 3,2 G3204/3 8,1 cm digiCOVER Hybrid Glas Displayschutz 8,1 cm (3,2 Zoll) (1-er PacK) 19,9 3,2 16/9G320-169 8,1cm digiCOVER Hybrid Glas Displayschutz 8,1 cm (3,2 Zoll) (1-er PacK) 19,9 3,5 4/3G405 8,9 cm digiCOVER Hybrid Glas Displayschutz 8,9 cm (3,5 Zoll) (1-er PacK) 19,9 3,5 16/9G405-169 8,9 cm digiCOVER Hybrid Glas Displayschutz 8,9 cm (3,5 Zoll) (1-er PacK) 19,9 Alcatel OneTouchG4057 Idol 3digiCOVER 4,7" Hybrid Glas DisplayschutzAlcatel OneTouch Idol 3 4,7" 19,9 Alcatel OneTouchG4252 Idol 4digiCOVER Hybrid Glas DisplayschutzAlcatel OneTouch Idol 4 19,9 Apple iPhoneG2525 4/4s digiCOVER Hybrid Glas Displayschutz Apple iPhone 4/4S 19,9 Apple iPhoneG3290H 5C digiCOVER Hybrid Glas Displayschutz Apple iPhone 5C 19,9 Apple iPhoneG3854 6 digiCOVER Hybrid Glas Displayschutz Apple iPhone 6 19,9 Apple iPhoneG3855 6plus digiCOVER Hybrid Glas Displayschutz -
Agfaphoto DC-833M, Alcatel 5035D, Apple Ipad Pro, Apple Iphone 6
AgfaPhoto DC-833m, Alcatel 5035D, Apple iPad Pro, Apple iPhone 6 plus, Apple iPhone 6s, Apple iPhone 7 plus, Apple iPhone 7, Apple iPhone 8 plus, Apple iPhone 8, Apple iPhone SE, Apple iPhone X, Apple QuickTake 100, Apple QuickTake 150, Apple QuickTake 200, ARRIRAW format, AVT F-080C, AVT F-145C, AVT F-201C, AVT F-510C, AVT F-810C, Baumer TXG14, BlackMagic Cinema Camera, BlackMagic Micro Cinema Camera, BlackMagic Pocket Cinema Camera, BlackMagic Production Camera 4k, BlackMagic URSA Mini 4.6k, BlackMagic URSA Mini 4k, BlackMagic URSA Mini Pro 4.6k, BlackMagic URSA, Canon EOS 1000D / Rebel XS / Kiss Digital F, Canon EOS 100D / Rebel SL1 / Kiss X7, Canon EOS 10D, Canon EOS 1100D / Rebel T3 / Kiss Digital X50, Canon EOS 1200D / Rebel T5 / Kiss X70, Canon EOS 1300D / Rebel T6 / Kiss X80, Canon EOS 200D / Rebel SL2 / Kiss X9, Canon EOS 20D, Canon EOS 20Da, Canon EOS 250D / 200D II / Rebel SL3 / Kiss X10, Canon EOS 3000D / Rebel T100 / 4000D, Canon EOS 300D / Rebel / Kiss Digital, Canon EOS 30D, Canon EOS 350D / Rebel XT / Kiss Digital N, Canon EOS 400D / Rebel XTi / Kiss Digital X, Canon EOS 40D, Canon EOS 450D / Rebel XSi / Kiss Digital X2, Canon EOS 500D / Rebel T1i / Kiss Digital X3, Canon EOS 50D, Canon EOS 550D / Rebel T2i / Kiss Digital X4, Canon EOS 5D Mark II, Canon EOS 5D Mark III, Canon EOS 5D Mark IV, Canon EOS 5D, Canon EOS 5DS R, Canon EOS 5DS, Canon EOS 600D / Rebel T3i / Kiss Digital X5, Canon EOS 60D, Canon EOS 60Da, Canon EOS 650D / Rebel T4i / Kiss Digital X6i, Canon EOS 6D Mark II, Canon EOS 6D, Canon EOS 700D / Rebel T5i