Actually, weve found the new 2470 f4 is is a most interesting lens inside. Equally important, the lens has a solid feel to it. The compact hasselblad 45mm f4p lens was introduced for the xcd system. The soap opera of optical design continued in the patent theft wars of petzval and voigtlander and those between voigtlander and abbe and schott. It teaches how a satisfactory design can be obtained in a straightforward way.
Sep, 2011 the telephoto design is also used, surprisingly enough, when a very compact lens is needed remember one definition of telephoto lens is the lens is shorter than its focal length. Wide angle lens rental rent wide lenses borrowlenses. The lens plus adapter is only around 250 g g for lens, 120 g for adapter. I used my lens pen to clean the filter and, voila, good as new. Still, one profession that has been hit particularly hard is. Canon no longer publishes this book, and the latest version canon no longer publishes this book, and the latest version was i believe from 20.
I think it looks nice and slick, but probably prefer the classic look. Jan 06, 20 brilliant idea and the engineering and design mathematics involved must be most formidable. Portugal, not germany, for the monovid is superb, with deeply engraved and paintfilled. I know theres some randomness as to what we tear down, but we have some reasons for doing these. We also saw that the trend to mirrorless continues, as both canon and nikon adapt to the platform. A course in lens design is an instruction in the design of imageforming optical systems. But the canon 2470 f4 is is a truly interesting design, with some things that weve never seen before. I tossed the lens pen in the nearest trash can, though, but had a spare. All of those things are removed next to take the zoom barrel off. A large part of this book is devoted to a study of possible design procedures for various types of lens or mirror systems, with fully worked examples of each.
In the center, thats the highest mtf ive seen on a nonsupertelephoto lens. I know that the low price had a big influence on my decision. Suggestion for books tracing the evolution of photographic equipment closed ask question. The classic design has an objective group static front positive lens or group and a zoom group the negative or negative group. Lens design fundamentals edition 2 by rudolf kingslake. It is much lighter than the monovid, has much closer focusing at 60cm vs 1. Lensrentals new keeper program lets you buy rental gear. May 19, 2019 batis design is new zeiss and has the same design language as milvus lenses. Dec 10, 2018 last week, we shared with you our end of the year data showing off the most popular rentals for 2018, as well as the most popular new product rentals for the year. Theres a neat article on the history of lens design over at. Last week, we shared with you our end of the year data showing off the most popular rentals for 2018, as well as the most popular new product rentals for the year. Focus shift isnt even an issue until you stop down. So as usual, aaron is doing the disassembly while im doing the photography and writing.
Roger cicala wrote about certain historical aspects of camera and lens history on his blog on lensrentals. Eventually the larger depth of field from reducing aperture overcomes the focus shift, almost always by f2. Since i cant mount the best lens to the best camera, i thought id look into how the two systems compare in final resolution. My manual focus on dslrs is nearly always done with tripod and magnified live view on a d8xx. How postprocessing began david horan, who is a member of the photography. After testing 10 prerelease copies of the new sony fe 5mm f1. The telephoto design is also used, surprisingly enough, when a very compact lens is needed remember one definition of telephoto lens is the lens is shorter than its focal length. I took him up on that offer following the tokyo masterclass in. For a couple of years back in the heyday of digital, i nominated a camera as the worlds most desirable camerawhich is absurd, of course.
Jem spends most of his time producing content, educating others and joins ryan to discuss how to prepare for small to no crew productions, the essential roles that need to be filled, and when to hire out for. While i recommend you to look through the data presented in that article, some of the trends we saw were that the staple focal lenses 2470mm, 50mm, 70200mm are still as popular as ever despite some of them being over 10 years old by design. Lens design fundamentals edition 2 by rudolf kingslake, r. On making lenses, inside sigma, and the 18300 ming. Mar 12, 2015 that said, because this is a crop frame camera, you can manage good photos with cheaper lenses because you are using, in essence the center of the lens and not the outer fringes where a lot of softening sometimes takes place. Take a look at this fascinating teardown of the new canon. This brings the number of lenses for xcd cameras up to 10. Basically, almost all slr lenses are derived from one of six basic designs. This isolation amid this pandemic is affecting people in careers in a multitude of ways. The fit and finish on the japanesemade monoculars vs. This is part of the lens design, not indication of a bad lens. Were simply evaluating them today to see if the newer optics provide a higher resolution than the older ones. By lensrentals each week roger cicala, founder of lensrentals. Turning the lens a bit, you can see the zoom position sensor nikon has finally moved on from metal brushes and one of the zoom ring keys small slotted screw with white nylon collar that attach the zoom ring to the cam barrel.
On making lenses, inside sigma, and the 18300 ming thein. Since this adapter is designed for micro 43 systems, which have a thick optically stack, the fact that there was no glass in the light path of the optical bench might be causing a. I meant the hottest of the hot newest products, the thing that everyone was talking about, the thing that had the highest or most widely shared degree of covetability. Varifocal photographic lenses benefits for the user. The fujinon is a pl mount lens, so im afraid you wont be able to adapt it to your 5diii or d810. I havent found it, but im certain theres a patent out there somewhere for this. This isnt something i can correct, but its good to know that i can shoot my sigma 50mm f1.
This gives renters a trybeforeyoubuy option and lets those who have become enamored with their rental equipment keep it forever. The worlds most desirable camera has a slight problem. When you are a hobbyist, rentals help you test different types of cameras and lenses, including wide angle lenses, until you find something that matches your personality and style. If you really want to, though, you could buy a pl modified canon 7d camera and use this as your walkaround lens. The tiny lenses used in the old kodak disc cameras equivalent to 44mm at f2. Designers start with an existing lens design and modify it. It really is like having two different lenses in one. Theyll boost contrast the rest of the time if youre shooting. Cross section view of leica lens shelby white the blog. The lens was designed specially for the sony emount cameras and requires the voigtlander vme close focus adapter to work, as it has no focusing helicoid of its own. Lensrentals teardown reveals the inside of the strong. Has diagrams and cutaways of equipment and mechanisms, including shutter and aperture mechanisms and lens design.
Seems that marmaduke got his cold wet nose on my uv filter on the lens and left a bunch of dog snot. From photography to videography, film, history, and technology, the show covers a wide range of topics to educate and inspire creators of all kinds. Features an internal focusing design, so the lens does not change its physical size when changing focus, which makes it compatible with rodmounted accessories such as matte boxes. However, in my experience, if you store this lens upright, as opposed to horixontally, in ones camera bag when not in use, gravity seems to prevent that thumping. Jan 29, 2019 the classic design has an objective group static front positive lens or group and a zoom group the negative or negative group. Canon also says the new design has much greater contrast, and i tend to. Brians design like that of most lenses has an optical formula that plans on light rays leaving the lens passing through such a stack before reaching the sensor. Many of you who have followed along as we betatest our sony fe lens testing have been asking where the fe 1635mm f4 za oss and the fe 2470mm f4 za oss test results are. Oct 11, 2011, mentioned previously, and well recommended in some posts, unfortunately does not carry lens in pentax mounts, so i thought it appropriate to mention that camera lens rentals. Weve done a pretty good introduction to the field curvatures of 24mm, 35mm, 50mm, and 85mm prime lenses. The cynics photography dictionary lens rentals blog. Sometimes the rear positive is considered part of the zoom group and sometimes considered as the back half of a split objective, depending on what academic circle you come from and details of the zoom range.
Rent professional cameras, lenses, lighting and more from 5star vetted vendors in your neighborhood. Monochrome images in this article from the factory were shot with a leica q. My website my galleries my blog artists archives of the. The sport has continued without much change other than the names of the players until today. This is a short well not that short description of the spectacular zuiko 50mm f1. This post will probably give you a good idea of how much mechanical design is required to make even a very basic lens. Jan 19, 2016 monochrome images in this article from the factory were shot with a leica q. Hi steve, as i already wrote never used a nonleica lens until these days, to be honest, i was very uncertain about the 7artisans 28 1. Portrait photographers miami l celebrity portrait photography. I can understand that a calculated mtf ignores diffraction since it simplifies the calculation and represents the lens design, but it wouldnt make sense for actual measurements. How to break a camera impact damage, sensor scratches, and shutter failure, oh my. How a weekend challenge is changing the film industry ally is joined by. The highest resolving camera is the nikon d800e since i cant mount the best lens to the best camera, i thought id look into how the two systems compare in final.
But ive got shelves of books on optics and friends who know way more. Tracks the evolution of photo equipment from inception to modern times. Both of these retain more sharpness at the longer focal lengths than the older design does. The reader is urged to follow the logic of these examples and be sure that he understands what is happening, noticing particularly how each available degree of freedom is used to control. That gives the lie to any claim that the mount is not suitable for ff, or for sharp lenses or good corner sharpness or f1. Best sony fe landscape lenses for the light traveler and. Any package that arrives with its contents undamaged is classified as good in my book. Includes notes on the thinking the engineering that made the evolution possible. Field curvature and stopping down lens rentals blog. That would be a very strange thing to do, as the published result will then not be something the lens can do in the real world, but a theorethical value. It seems that whenever i post here about using either canon or nikon gear, or when im seen with either, that some people are surprised that im using the other brand just to mess with everyone, here is a snap of me carrying a nikon d4 and a canon 1dx, each with a 70200mm f2. Bythom new camera and photography articles, nikon dslr.
Budgetfriendliness is another reason to rent lens, whether you are a photography hobbyist or a professional with many years under your belt. Theory is limited to a minimum, and used to support the practical design work. But it became apparent when we started to remove it that the flex connector going to the back of the lens you can see it out of focus at the top was going to keep us from removing the ois group entirely. Nov 19, 2017 the lens plus adapter is only around 250 g g for lens, 120 g for adapter. Anything is possible when you choose the right lens for the job. Rent camera equipment, camera bodies, lenses borrowlenses. Jan 06, 2016 equally important, the lens has a solid feel to it. One of the first compromise questions i had involves shooting with 2470mm f2. The rf versions of this lens completely oversize and. The book introduces geometrical optics, optical instruments and aberrations.
Thanks, roger, for this excellent teardown of the stellar fujinon xf55200 zoom. The next couple photos i took looked blurry and i blew them up a bit yup, blurry. There are lots of modifications to address aberrations, but you can trace most lens designs to the same starting points. Feb 18, 2020 another book that might be useful to you is canon lens work iii. Sep 08, 2018 photographing a residential interior the anatomy of a luxury interior shot 5 real estate photography lighting architectural photographer scott hargis. But one of the perks of working at, is that you have access to over. But one of the perks of working at, is that you have access to over 250,000 pieces of photography and video gear, meaning much of the staff is made up of photographers and.
Lensrentals optical testing shows nikons third generation 70200mm f2. Ive had this lens for about a year and it rapidly became my favourite 50mm. The arri pl mount was designed for use with both 16 mm and 35 mm movie cameras. Ill actually have to check the primitive photography book to see if it covers grindingpolishing. Lensrentals teardown reveals the inside of the strong like. Aberration something that is wrong with the lens by design. That said, because this is a crop frame camera, you can manage good photos with cheaper lenses because you are using, in essence the center of the lens and not the outer fringes where a lot of softening sometimes takes place. Take a look at this fascinating teardown of the new canon 70.