When your lens is focused to infinity, then everything in your frame will be in focus no matter how distant it is to your lens. By leaving a little extra room past infinity, the lens designers allow the motors to power the focus assembly all the way to infinity without bumping against a hard stop that could reduce the life expectancy of the motor and other focus components. Set the focal length you'll use to photograph the stars if you're using a zoom lens. For photographers who use manual focus, an interesting option exists on your lens's focus ring: the infinity focus setting. I did a search but couldn't find anything on this issue. A lens' ability to focus at infinity accurately is important. The best way to get clear focus for astrophotography is to use Live View at high magnification to manually focus the lens, then leave the focus set at infinity and turn off Live View. Educational Resources for Boudoir Photography When starting out in boudoir photography, the most important thing is learning as much as you can and getting lots of practice.. "/> The only way to properly obtain sharp images and get proper infinity seems to be moving the focusing ring to the very beginning of the infinity focusing mark on the scale. What tips and advice do you have for photographing the Aurora Borealis? Material on this site may not be reproduced, distributed, transmitted or otherwise used without the prior written consent of The Imaging Resource. A common theme across many manufacturers is that they want their lenses to be able to correctly focus in different environmental conditions. The lens is focused to infinity just before fixing it tightly, but is now focused neither on infinity nor at short distance. Zeiss made only 10 of these lenses, six of which went to NASA. The infinity position is made with certain allowances to insure proper focus under a variety of conditions." This is a quote from a review on the Tamron 70-300 VC USD: " The focusing ring ends at soft stops at the close-focus and infinity focus points, and will focus past infinity." Mike Sowsun. The telephoto lens focusing ring stops just beyond the mark. rev2022.11.3.43005. By adjusting your lens' focus ring to that position on its focus scale and taking a photo of this scale at infinity focus, you can establish the right focus in the dark. A forum thread in FORUMS Canon Cameras, Lenses & Accessories Canon Lenses It's not only Sony and yes, there are reasons: Temperature and infrared. Setting focus to infinity was once a common method to get sharp images of distant subjects, so why are modern lenses so often designed in a way which makes this difficult? (More on this later.) Jun 16, 2015. Would it be illegal for me to act as a Civillian Traffic Enforcer? How to generate a horizontal histogram with words? We both enjoy doing night photography and in the past with other lenses, when working in near darkness you could rely on simply turning the lens to infinity and there it would stop turning. First one is easy: Temperature variations will affect focus plane. On the kit 18-55 lens that came with my Nikon D5100 I have noticed that when trying to focus on infinity for shots in dark conditions (star-trails, etc) the lens tends to move past infinity out of focus and need to be brought back a little to get a clear infinity focus point. For closer shots, the Canon EF 85mm 1.8, Nikon Nikkor 8 85 f/1.8 S, and the Sony FE 85 1.8 are all superb lenses for starting out in boudoir photography. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page. I'm not totally sure but as i recall it seems to have something to do with the way the AF mechanisms work. Vorkenkamp set out to investigate why lens design and construction changed, why lenses' focus rings didn't stop at infinity any more, and why focus rings felt different. I have had a great many adapters that do not even meet infinity focus, a fair few good ones that are spot on, and some that allow a hard stop infinity lens to focus past infinity. The a7R V is the fifth iteration of Sony's high-end, high-res full-frame mirrorless camera. ago. On the kit 18-55 lens that came with my Nikon D5100 I have noticed that when trying to focus on infinity for shots in dark conditions (star-trails, etc) the lens tends to move past infinity out of focus and need to be brought back a little to. The cause could be the filter. Thanks for contributing an answer to Photography Stack Exchange! The "infinity mark" is the L mark in the distance scale. Re: Why do some lenses focus beyond infinity? Autofocus lenses can be tricky. I did the same thing this morning just before sunrise. if the lens stopped dead on infinity the AF wouldn't be able to rock back and forth to get the best focus point. If you want infinity focus you put the line or mark (as appropriate) on the L mark. All content, design, and layout are Copyright 19982022 Digital Photography Review All Rights Reserved. This phenomenon can occur when the original IR-cut filter of the camera has been replaced by a filter with thicker glass or of a different refraction index. These manual-focus lenses have a superb, classic, tactile feel. Infinity focus is similar to an extraordinarily wide depth of field. Infinity + 1? High resolution, weather-sealed bodies and wide dynamic range are all important. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. Fastest decay of Fourier transform of function of (one-sided or two-sided) exponential decay. It is not just cheaper lenses. I hear this is to counterthe changes that temperature-fluctuations can cause in the metal of which the lens's focusing helicals are made,but I wonder, if that really is the case, why are only some lenses designed. Is a planet-sized magnet a good interstellar weapon? for temperature tolerances I've heardbut mostly so the AF mechanism doesn't get hammered when racking back and forth around infinity. "Yea, though I walk through the valley of the shadow of death, I will fear no evil"StructuredAmazing forever.My website: Pending Not this; infrared is brought to infinity focus longer (i.e. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. The issue: when focusing to the furthest infinity position (at the lens stop), this lens is focusing past infinity - regardless of the aperture/hyper-focal used. You couldn't do hyper-focus without it. According to a Canon rep at a local photo and imaging show recently it's so the AF mechanism can focus on infinity perfectly by minute adjustments backwardds and forwards. My Zeiss 4/300 Sonnar does so. Being an aftermarket manufacturer, they are designing lenses that accommodate upwards of 10 different camera mounts and, because of the varying thicknesses of these mounts, need to allow users to utilize a variable infinity focus range to find precise focus. Whats the best camera for around $2000? Answer (1 of 8): The original question was: "Can a lens focus past infinity?" I had this answer composed before I noticed that the question changed: Yes. Non-anthropic, universal units of time for active SETI, What does puncturing in cryptography mean. The best way to get clear focus for astrophotography is to use Live View at high magnification to manually focus the lens, then leave the focus set at infinity and turn off Live View. Nikon D600 | Bower 14mm f/2.8 | Nikon 16-35mm f/4 VR | Nikon 24-85mm f/3.5-4.5 VR | Nikon 50mm f/1.8G | Nikon 70-300mm f/4.5-5.6 VR500px | flickr. My 70-200 does and I've heard that most higher end lenses do. Written by MasterClass. My lens's focus ring can be twisted past infinity and the close-focus stops without ever hitting a hard stop is it defective? Why do some lenses focus beyond infinity? Auto Focus lenses use fairly strong motors to move focusing elements quickly. Everything is relative. Can over-turning the focus ring break the lens? "The focusing ring of the telephoto lens stops slightly past the mark. Why do I get two different answers for the current through the 47 k resistor when I do a source transformation? Why do lenses focus past infinity? Viewfinders were also larger and brighter with most film cameras, although split prisms were pretty much useless with stars, setting focus on a very distant object, such as the moon, would usually get one within the limits of their system. How many characters/pages could WordStar hold on a typical CP/M machine? Why would I want to select an autofocus point? Although focus shift will be more noticeable at the minimum focus distance and other shorter distances, the lens may still need a little wiggle room at infinity focus to allow for adjustment depending on the selected aperture. (this ad will go away when you log in as a registered member). In 1966, Zeiss designed a 50mm F0.7 lens for NASA for its Apollo missions. Thanks! When the migration is complete, you will access your Teams at stackoverflowteams.com, and they will no longer appear in the left sidebar on stackoverflow.com. Some planets are quite bright and can be used for focus. Why do some lenses focus beyond infinity? What is the deepest Stockfish evaluation of the standard initial position that has ever been done? Manual-Focus for 35mm Film Classics. We both enjoy doing night photography and in the past with other lenses, when working in near darkness you could rely on simply turning the lens to infinity and there it would stop turning. There are a few caveats to this, however. Asking for help, clarification, or responding to other answers. According to a Canon rep at a local photo and imaging show recently it's so the AF mechanism can focus on infinity perfectly by minute adjustments backwardds and forwards. The Fujifilm X-T5 is the company's latest classically-styled APS-C mirrorless camera. There are several reasons for it: Unless a lens is parfocal the exact point of infinity focus shifts as the lens is zoomed in or out, and so obviously there will be a point where infinity for one focal length is past infinity for another. If that point is far away, it'll move past infinity focus in the process.-js, "Be seeing you. How do I focus in low light for long exposures? Thread started 27 Dec 2011 (Tuesday) 09:40, Bower 14mm f/2.8 | Nikon 16-35mm f/4 VR | Nikon 24-85mm f/3.5-4.5 VR | Nikon 50mm f/1.8G | Nikon 70-300mm f/4.5-5.6 VR. Book where a girl living with an older relative discovers she's a robot, LO Writer: Easiest way to put line of words into table as rows (list). The new camera sticks with the 60MP BSI CMOS sensor of the Mark IV, but just about everything else has been given a boost, with advanced AF, focus stacking and a new rear screen arrangement. Thanks. Save my name, email, and website in this browser for the next time I comment. i.e. Is God worried about Adam eating once or in an on-going pattern from the Tree of Life at Genesis 3:22? These capable cameras should be solid and well-built, have both speed and focus for capturing fast action and offer professional-level image quality. 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