Questions tagged [lens]
A photographic lens is used to focus the light onto film or a digital sensor. Many cameras have interchangeable lens systems, allowing the photographer to choose the type of lens to use.
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Which of these lenses to choose for a studio project?
I'm preparing for my first professional studio photography project and am seeking advice on the best lens to use for portraits, including full-body shots and headshots. I have a Canon EOS RP with an ...
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What causes lens flare from stadium floodlights in my pictures?
When photographing a bright light source (stadium floodlights) a lens flare effect presents itself in the image (shot on an iPhone 13 pro). What causes this effect and how can I accomodate with the ...
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Canon 50mm f1.8 VS EF-M 15-45 mm
How much of a difference in IQ of the nifty-fifty against the EOS M 15-45mm kit lens?
I personally have found the kit lens sharp and image looks a bit modern (or not? compared to EF 100-300mm I owned)....
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Why don't my Fujifilm X-A20 autofocus after putting back on original lens?
I have a Fujifilm X-A20, but I removed its original lens around 4 years ago and have been using a meike lens I bought at the same time. Today I decided to put back the original lens to use it but I ...
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Canon EF 40mm f2.8 consistently sharp across the frame?
Does the EF 40mm f/2.8 lens give sharpness not just at the center but also to the periphery most of the time..? In comparison with the 50mm f/1.8 STM which only very sharp at the center..?
I have done ...
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Does my new Helios 44m have fungus?
I just bought a new Zenit 122 camera with helios 44m-6 lens. The lens has something inside and I'm afraid if it's fungus and could infect my other lenses
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Grey circles in the background in photos
All my photos contain grey circles which is especially noticable on light background (e.g. sky). I don't know what is the name of this specific artefact and what is connected to (lens? camera?). So ...
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Is this effect because of the lenses? what type?
https://www.instagram.com/p/CwsKDthOdST
So in this video, the legs of the man look really small. I thought at first it must be because of the lenses but if it were for wide angle lenses, that would ...
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Is this diagram I've drawn in regards to Depth of field correct?
This diagram is modelled after a video I saw on depth of field formula and its derivation. I have now learnt a bit more regarding Depth of focus and how it refers to "the tolerance of placement ...
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Nikon D810 FX- Aperture Question
Can you change the aperture on the camera without the lens or does the lens on the camera have to be connected to the camera?
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Is a Yongnuo 50mm f/1.8f F-mount lens compatible with Nikon F55 or Nikon F80 film SLRs?
I have a Yongnuo 50mm f/1.8N (AF/MF) lens that I use with my Nikon D5600 DSLR (aps-c). I'd like to buy a Nikon SLR film camera, an F55 or F80, and use it with this Yongnuo lens. What issues will I ...
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Canon PowerShot A810 lens error
I have a Canon PowerShot A810. I don't know what happened to it, but when I turn it off, the lens doesn't close completely, starts buzzing, and after a few seconds, it says "Lens Error".
It ...
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Fujifilm Xt200 lens error with Viltrox 23mm/f 1.4 lens
I just bought my first lens, an Viltrox 23mm/f1.4 for my Fujifilm Xt200 camera and I have this error where the display starts flickering and then the LENS ERROR appear and can't figure out the problem....
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Is it possible that sunlight reflecting off a camera lens could cause sufficient glare to dazzle a driver?
Edited to say: Apologies, it's sunset that these photos are being taken, not sunrise. I hope that doesn't affect the answers that everyone has taken the trouble to answer. Thanks again to all for all ...
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Does the inverse square law apply to all lights, including light within a lens?
In The Cine Lens Manual by Jay Holben and Christopher Probst pp.46, it is mentioned that the light loses brightness/intensity even within the lens.
This part is discussed right after the inverse ...
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What Nikon lens is this? What kind of UV-pass beam splitter is this?
A detective challenge for this wonderful community of experts:
I am working on a science museum exhibit about the different ways animals can see light. I am trying to reverse engineer the incredible ...
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What can cause double-vision effect in slightly out of focus areas?
I have an issue with my Canon 70-200 F/4L USM. It is less sharp at 200mm than at shorter range and the objects that are slightly out of focus are rendered twice with horizontal offset. The shutter ...
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Relationship between minimum focusing distance, maximum reproduction ratio, and focal length?
I'm having a hard time understanding these specs of these two Nikon (Z-mount) lenses (or rather, reconciling them).
One of them is the Z-mount 105mm macro: https://imaging.nikon.com/imaging/lineup/...
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Focal length reducer on FF camera (24mm F2)
Lens: Zuiko OM 24mm F2,
Camera: Sony A7S2
What would happen if a focal length reducer (0.71x) is used to adapt a 24mm F2 FF lens, into a FF camera?
The resulting field of view should be ~17mm with ...
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Most suitable lens out of Nikon 18-105 / 18 - 140 / 18 300 Lens
I have Nikon 18-55 and 55-300 mm lenses, and I am looking for an alternate of these two.
There are the lens of the following lenses for the replacement:
Nikon 18-105Mm F/3.5-6.3G - Rs. 19540 (INR.)
...
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What lens for Nikon night landscape / sky photography? [duplicate]
I wanted to take night sky / aurora photos. I have currently been using Nikon D5300 with 18-105mm f3.5-5.6 lens. However I have noticed that it needs either a bit too long to take photos at night or ...
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Im thinking of buying a Nikon D610 do i need to get a specific lens for it to auto focus
Im thinking of buying a Nikon D610 do i need to get a specific lens for it to auto focus? I know Nikon do various lens mounts but not sure which I need to look for
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How to calculate the required working distance for an object to fill the camera sensor?
I would like to take photographs of a flat object with the camera at some adjustable distance from this object. I would like the object to just fill the camera's sensor.
Given an object of extent $s$, ...
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Close up photos obscure the outside edges of vertical objects in the scene. How can I fix this? [duplicate]
I'm shooting laboratory photos of small (60mm) sized objects. It is essential for me to use the entire camera sensor to achieve adequate spatial resolution, so I am putting the camera as close as ...
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Does autofocus in iPhone changes focal length? [duplicate]
I was wondering how auto-focus works in mobile cameras. I understood that, mobile phones uses either 'contrast based' or 'phase-detection based' algorithms to find the optimum length position for ...
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What is the better gift for the beginning bird photograper? Used 500 mm F 4.5 prime vs 100-600 mm F 4.5 - 6.8 zoom
I want to buy a gift for the beginning bird photographer. She currently uses and has experience with 70 - 250 mm lens (the camera accepts Canon EF S). She says the birds just fly away as she ...
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Threaded filter origin
Historically, who originated the convention of front-of-lens filters measured in millimeters?
From a casual search looking at photos in Wp etc.:
General discussion of filters appears to suggest that ...
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Canon 10-22mm does not go below 12mm
All new on this.
Bought a used camera (Canon 70D) with some lenses and are taking a thorougher look at it.
One of the lenses is a Canon EF-S 10-22mm f/3.5-4.5 USM.
The issue I am having is that it ...
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Is the Canon 75–300mm EF lens compatible with a EOS 400D? [duplicate]
I have a Canon EOS 400D. I am looking at the 75–300mm Canon EF lens.
Will this lens work for my camera?
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Why do I need to press the shutter twice on my Canon 450D? [duplicate]
I am using 450d. When using a-def,m,av,tv,p mode, the shutter does not work properly. After pressing the shutter button, you have to press it again to lower the shutter. Do you have a solution? Also,...
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Does unit focussing yield smaller depth of field than element focussing?
With unit focussing (also called bellows focussing, although a bellows isn’t intrinsically necessary) the entire photographic objective is moved relative to the film plane to set the focus. This also ...
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What do the characters on this CCTV lens mean?
There are 3 controllable rings on the CCTV lens.
Each ring has 2 characters on them with the ring farthest from the sensor being F and N.
Next is O and C. The last ring is T and W.
What does each of ...
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What camera and lens can achieve such subject magnification?
I'm still new to the subject and I'm confused by all the offerings on the market.
I'm trying to understand if you need expensive equipment to shoot good quality video and stills with such ...
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Any downsides to using an A-mount lens on an E-mount Sony body?
I might be able to get a Sigma 60-600mm DG HSM (not DN) lens for a good price, used, which has an A mount. I have an E mount body (a7r3), and was wondering if, combined with an A to E adapter (...
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Safe Distance away Radioactive Lens?
Is it correct that when you move at least 3 feet away from a radioactive that level drop dramatically to safe levels and even further a way - as little as 10-12 feet-levels drop to background levels ...
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Can I use Canon EF lenses on an EOS 600? [duplicate]
Maybe it is a dumb question, but my camera store has a Canon 600 for €25. I have some ef-lenses at home by canon, I'm not sure if I want to invest in the camera if I can't use the lenses. The owner is ...
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Minolta MD lenses to Canon 6D body [duplicate]
Is it possible to use Minolta SR/MC/MD lenses on Canon 6D?
I understand that it is 2 different mount systems- so I will need some sort of adapter.
Also as I understand from wiki (https://en.wikipedia....
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Beginner kit improvement advice - which lens should I consider?
I have a Canon 250D (APS-C) since september 2022; I'm really enjoying it but I feel like that's the moment for my first lens upgrade.
The camera came in kit with the well-known 18-55 mm STM f/4-5.6. ...
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How to achieve this effect (small/medium object photography)? [closed]
I need to take photos of a bunch of bullets for a project, and I want to attempt to reproduce how this photo looks. I've taken photography classes in college so I'm not a total rube, but that was a ...
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Converting panoramic MF lenses to 35mm equivalents?
This random website I found talks about estimating the 35mm camera equivalent lens sizes for various MF frame sizes (645, 6x6, 6x7, 6x8 and 6x9). But I am interested in shooting panoramic MF with ...
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Canon Powershot SX130 IS Lens error
So, i was taking some pictures with my camera, and when I wanted to clean it, It said "Lens error, will restart automatically". I did nothing wrong to the camera and to the lens, they were ...
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How is reflection sharp when not in DOF range? [duplicate]
This is baffling to me. When you use fast lens and you focus on a subject, you'd think that everything that's not in DOF range would be blurred but this is not the case if the object is a mirror or ...
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Nikon D3100 Making weird sounds while trying to take photo
Whenever it try to take a photo on my nikon D3100 it keeps making weird motor sounds. I have dropped its lens once about 3 months ago but has been working fine until now. Here's a link to the sounds ...
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How can I disassemble a Computar M8513 lens?
How can I disassemble a Computar M8513 lens?
It is a C-mount lens with a focal length of 8.5 and f1:1.3, it has manual focus and manual aperture.
The aperture/iris can be opened/closed rotating the ...
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What lens do I need?
I am looking to mimic the below photos to the best of my ability. Hue, the softness of the photo, cool toned, range of view, etc. I have a Sony a7III. I understand editing is done to the photo after ...
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Why can't my Canon 18-135mm IS focus to infinity when zoomed past 100mm?
My EF-S 18-135mm f/3.5-5.6 IS [non-STM/non-USM] cannot focus on my 7D to infinity when it is zoomed past 100mm in both auto and manual focus. It can only focus on objects at a shorter distance (say &...
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Do all macro lenses have dark shadows when shooting?
Is it normal for a macro lens purchased to have dark shadows during photography? If so, how can I use this shadow to perfect my photography?
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How do I figure out which C adapter I need to use a CX4 Microscope Camera?
I work on very small electronics and I was trying to get a camera to take pictures of the boards that I work on. I ordered a CX4 cmos camera and got a C adapter to attach it to my microscope. It ...
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What focal length is best for photography of rugs?
What focal length is best for photography of rugs? I am choosing between a Sony 16-50mm lens and a 50-210mm lens.
Rugs size small and medium sized 2x3m
Notes :i have 2 only lenses size 16:50 mm and 50:...
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Can I mount a EF-M lens onto a C/CS-mount camera?
I have a Raspberry Pi High Quality Camera (C/CS-mount), and would like to mount the Canon EF-M 28mm f/3.5 Macro IS STM to it (EF-M). I have been looking for adapters, but can't find any. This got me ...
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