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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192 views

There are many f2.8 zooms for FF. Why are there so few f2/f1.8 zooms for APS-C?

APS-C/Super35 cameras are less staple for film than they were before, but are still widely used. Besides, there are quite a few semi-professional APS-C DSLRs on the market. As far as I understand, a ...
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1answer
143 views

Bought “Mint” lens from Japan, but then I see this

I just received a supposedly "mint" Nikkor 28mm f2.8 AIS lens from Japan. It sure does look unused, but when inspecting the rear element I found this stuff: The smaller spot near the top ...
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6answers
186 views

What size lens will give a 2ft by 2 ft view at a range of 2 ft?

I was considering getting a 35 or 50mm lens or similar and am not sure how to choose the right one. Cannon 60d.
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1answer
110 views

What does 1: in Canon Zoom Lens EF-S 18-55mm 1:3.5-5.6 IS II mean? [duplicate]

I noticed that in the front of my lens (CANON ZOOM LENS EF-S 18-55mm 1:3.5-5.6 IS II) where the it's name is printed, that it contains 1:3.5-5.6 which is the widest aperture you can set at 18mm and ...
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143 views

FD lens aperture is slow

I bought a Canon AE-1 Program on eBay along with a 50mm f/1.4. The camera works well with other lenses, but the 50mm's aperture seems slow. Moving the bayonet (I think that's what it's called) takes ...
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3answers
122 views

Can the Spatial Distortion of Wide-Angle Photographs Be Reversed?

I’ve been window-shopping online for a house recently and find that almost all the pictures posted by real estate agents are wide-angle shots, sometimes extremely so. That got me wondering if there's ...
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1answer
200 views

Why do these images have a dark semi-circle on the left side?

I shot these images with my Sigma 24-70 and Sony A7iii, in fog, sometimes pointed into the "sun" (it was not actually sunny but sometimes the lens was pointed towards the direction of the ...
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1answer
88 views

My Canon PowershotSX260 HS shows an error message

I accidentally droped my Canon PowershotSX260 HS while I was using it. The camera's lens was still extended but the camera looked like it just powered off. I tried pushing the power button, but when I ...
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3answers
160 views

How can I get rid of shadows generated from light source behind object of interest?

I am work in research and I have a areascan basler camera and objective that I am using to track the deformation of an object under load. I have attached an example image shown below. I am looking ...
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4answers
1k views

What's the practical difference between two Canon 50mm f/1.2 L lenses?

I've got an RF 50mm f/1.2 L lens for my R system. I've recently been playing with an F-1, and picked up the FD 50mm f/1.2 L lens. Obviously some of the different size is the autofocus and other ...
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1answer
210 views

Is there an EF version of the Canon EF-S 60mm macro?

I take a lot of photos of faces. For the last 12 years or so, I've been using a Canon EF-S 60mm macro lens on an EOS 7D. I just upgraded to a Canon RP full-frame. With an adapter, I can mount the EF-S ...
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3answers
466 views

two identical lenses with different coatings

Me and my friend both own the Nikon 24-70mm F/2.8G lens. When we met today I put my camera on the table next to his. We noticed that the front element of our lenses must have different coatings ...
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2answers
236 views

Telephoto Lens Advice for Canon

I use a Canon 600D and currently have three lenses: EFS 18-55mm A very old 50mm Pentax I use with adapter A very old (1970s?) Auto Super-Paragon 200mm f/3.3 I use with an adapter I want to get more ...
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1answer
60 views

What are these numbers below the distance scale of my lens?

On my Canon EF35mm F2 IS USM (my first prime lens ever which I just bought used) there are the numbers 22, 11, [line with red dot], 11, 22 written below the distance scale. From the manual of the ...
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1answer
131 views

Help! Auto-focus not working on Manual Mode but working perfectly fine on Auto Mode

I just bought and received a brand new Canon EF 24-70mm II USM lens. Already there is an issue. The autofocus works perfectly fine in Auto shooting Mode but will NOT work in Manual shooting Mode. This ...
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313 views

How do I fix my Tamron 18-200's autofocus issues with my Nikon D3100?

I'm using a Nikon D3100 with a Tamron 18-200. I purchased this lens from eBay, it is brand new. The owner says he never used it and kept if for almost 2 years without using it. At 18mm the lens won't ...
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4answers
146 views

Do chromatic aberrations change with distance?

I just saw the following claim on an amazon review and can't make much sense of it. Chromatic aberrations after 10 meters become significant. After 15-20 meters the picture becomes unusable. Is ...
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1answer
255 views

Help me find a lens with peculiar bokeh

I want to take portrait pictures with an artistic look of flowers. Therefore Im looking for an vintage lens with peculiar bokeh. I have seen some images taken with older lenses with very ...
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1answer
78 views

Dust on the sensor vs. in the lens? [duplicate]

I have an old, used Panasonic LX100 (Point and Shoot) that I plan to use as my main all-use video camera. I just started noticing that dust spots are visible in the image on apertures larger than ...
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1answer
75 views

Do Program and Shutter priority modes work on a Nikon N90s with a Series E lens?

I have a Nikon N90s camera body. Will a Series E 1.8 Nikon lens work on this body in the P and S modes? If so are there any restrictions and if so in what mode?
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1answer
179 views

Is my camera infected with fungus?

I am new to this forum. I just wanted to ask if this is fungus in my lens and how worried should I be? I am just using this lens with my Nikon F3. Is it possible that my camera got infected? I don´t ...
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1answer
186 views

Is this haze inside of the lens in this photo of a camera

This is the only view of the camera lenses shown (no individual close-ups) and I was wondering if the reason is because this they are indeed hazed. No statements re: the state of the lens are included ...
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3answers
187 views

What shutter can fit a lens element with large glass?

I am building a camera using a very large front glass element for the lens (diameter is 70mm). At first, I thought I should try to find a shutter that is 70mm in diameter as well, one that can ...
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14 views

Mounting a Samsung NX -compatible lens to a different camera [duplicate]

I currently have a Samsung NX3000 camera and a pretty decent macro lens for it. The problem is, I intend to upgrade my camera some day, but it would have to be a camera of a different brand as Samsung ...
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3answers
270 views

Is a 35mm or 50mm lens better for landscape photography and portrait photography?

I have a Nikon d750 full frame and am wanting a new lens for low light landscape photography and low light portrait photography. I am considering either a 35mm or 50mm F1.8. Which would be a better ...
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2answers
112 views

Lens for 1 inch sensor format does not seem to cover the actual sensor boundary

I have a camera which has the Sony IMX267LQR sensor. From the sensor documentation, its diagonal is 16.1 mm and pixel dimensions are 4096 (H) × 2160 (V). The camera manufacturer listed it as 1 inch ...
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3answers
85 views

I need to setup a ceiling mount camera to capture manuscripts

I need guidance on a mirrorless camera, to be set-up on the ceiling of large plans. The plans cannot be hanged vertically on a wall for a technical reason. They have to be flat on a table not even ...
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4answers
252 views

Does a lens with this zoom range exist?

I want to buy a zoom lens for a DSLR but I want its Focal length to start from a small number (18, 55, 100, 200) and end to a very large number (1300, 2600) so it can see near and far. Also I want it ...
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3answers
548 views

Photography tricks for widening objects or reducing narrowness?

I have a narrow face and feel this may negatively affect my streaming captures, especially with poor quality cameras, low lenses, poor sensors, etc. Are there any givens in getting a robust, wider-...
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1answer
72 views

Shadow line on all my photos with Canon 70D

I am trying to figure out what could be causing this line on all my photos. It is not always dominant, but it is annoying. Can anyone recommend what is causing this? Here is an image of the sensor ...
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2answers
168 views

Trying to understand effect of lens lp/mm on image pixels

I'm trying to understand how lens quality in terms of lp/mm affects the pixels in an image. Suppose I have a Sony IMX253 (1.1" sensor format, 3.45um pixel size, 4096x3000 resolution). In order to ...
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1answer
172 views

Is Sigma 50 mm f/1.4 DG HSM Art compatibile with Nikon Z50?

Can I use Sigma 50 mm f/1.4 DG HSM Art (Nikon mount) with Nikon Z50? Currently I am using it with D5600 but I am interested in switching to mirrorless and wonder if my lens is going to work properly ...
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0answers
55 views

Canon 16-36mm f2.8 EF manual focus not working

I bought a used Canon EF 16-35mm f2.8 where the auto focus works fine, but manual focus isn't working. The focus ring is not stuck, so that isn't the problem. Any ideas to what it can be?
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1answer
111 views

K10D poor focus - manual or auto - with full-frame zoom lens

I'm getting very poor focus particularly at the long end of an 80-320mm tele lens that I am using with my Pentax K10D. The lens was originally bought for my 35mm Pentax SLR (maybe an MZ5 or something, ...
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1answer
226 views

What's the best Nikon lens for jewelry photography?

I am beginner, I am planning to do some silver and gemstone jewelry shoot for my wife. I have a Nikon Z6. What’s the best lens I can use for this purpose. I have a kit lens 24-200/4-6.3. I have plans ...
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2answers
131 views

How do I select a fixed lens for my APS-C sensor camera for a specific field of view/zoom

I have a camera that's been set up for a very specific application: it's a mirrorless Sony alpha 6000, with the lens that came with the camera: The Sony 16-50mm f/3.5-5.6 OSS Retractable Zoom Lens. I ...
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1answer
168 views

Why does my Nikon DX AF-S Nikkor 55-200mm seem to be more zoomed in at 200mm than my AF-S Nikkor 18-200mm? [duplicate]

Looking for some input experience here. I have a Nikon D3300 and the following lenses: 18-55 VR kit 55-200 VR 18-200 VR 35mm fixed I primarily use the 18-200 lens out of convenience but was doing ...
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1answer
142 views

Identifying full frame lens [closed]

I have a D7100 with three lens, a Nikon SWM VR ED IF 077, a Nikon SWM 058 and a Sigma DC 072. I am considering moving to a full frame Nikon and trying to identity if all or any of my lens are ...
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2answers
44 views

Rodenstock Sironar N Compatibility

Is the Rodenstock Sironar N 240mm F5.6 MC compatible with LF 4X5 camera ? Should I have any concerns ?
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2answers
133 views

UV and haze lens for Canon Powershot SX50 HS

Looking for UV and CPL lens for this camera. As far as I am aware the supplied lens is 58 mm. Offers seem to have either 58 mm lens sets from Fotover etc. or 67 mm lens form Neewer etc. I assume for ...
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1answer
113 views

Sigma 70-300mm macro or nikon 55-200mm vr ii

I currently have a Nikon d3200 and am trying to decide between these two lenses. I understand the sigma can only manual focus on my camera. Im mostly looking to shoot wildlife , landscape or other far ...
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1answer
180 views

How to calculate height of camera and ground coverage via geometry?

I have a GoPro7 that I will mount on a pickup vehicle to capture ground images with video capture. The camera isn't top down but has about 20 (or 30) degrees inclination from the vertical axis. I want ...
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1answer
42 views

Does the QX1 support passive lenses?

I'm just starting to get into photography and got a used Sony QX1 and the 16-50 kit lens. Now I'm looking to extend my glass collection. I've read that to use lenses without any electrical connections,...
2
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1answer
351 views

Tokina AT-X 120 Pro DX AF 11-20mm f/2.8 vs Tokina AT-X 11-20mm f/2.8 Pro DX

for my Canon 80D am looking for a wide angle fast lens. Am considering the Tokina 11-20mm f/2.8. Am confused though as I have found online two different names with apparently the same specifications. ...
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1answer
380 views

Which lens should i choose for bokeh while video streaming?

I don't understand this lens topic. I watched so many videos and now i have more questions. I have a Canon M200 for streaming. I want nice bokeh effect for my background and silence auto focus. ...
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3answers
205 views

Unable to remove lens from my D750

My Nikon 200-500 has become stuck on my Nikon D750. The lens rotates slightly on the pins but won't rotate all the way to release. I'm guessing there's an issue with the locking pins on the D750. ...
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2answers
287 views

How does Leica R Telyt-R 4/250mm compair to a more modern lens?

Looking for a 300m to use with Leica M digital 24Mb. Use case for the lens: Always from a tripod, only at infinity (no autofocus/quick focus needed), photographing objects that are not moving. I ...
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1answer
89 views

Are there any F/1.8 wide angle primes under 20mm for Nikon F? [closed]

Nikon has a 20mm F/1.8 and there is a Sigma 14mm F/1.8 lens. I wonder if there are any fullframe Nikon F mount lenses with an aperture of F/1.8 and a focal length in between 15-19mm.
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1answer
238 views

Is there a zoom lens I can attach to a Kindle Fire for birdwatching?

This is probably pretty pedestrian for you all, but it's a sincere and slightly desperate question. My 94 year-old mom has been a casual birdwatcher her whole life. She's still pretty spry but has ...
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2answers
2k views

Canon EOS R or R5 with EF-S lens

Next month, I will buy a canon EOS R5 for concert photography. I will be short on money for some months or even a whole year because of this investment. I have a lot of EF-S lenses and some EF lenses ...

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