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Before the rush
by evan-pak

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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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2answers
209 views

What lens do I need to shoot this

I had an Olympus UltraZoom SP550 which has a 18x zoom (equivalent to 28-504mm from what i read), which was great until it died on my last trip... So, to replace it, I bought a Nikon D5200 kit that ...
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0answers
56 views

Autofocus not working on AF-S 35mm 1.8 DX with Nikon D3100

I haven't been using my camera very much over the past few months. The few times I've pulled it out, I noticed that the autofocus doesn't work when I put on my 35mm prime. I tested my 55-200mm and 18-...
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0answers
36 views

Which lens for a wedding (group of 60)? [duplicate]

I'm looking for advice : I shoot on both Canon EOS 550D and 70D and possess the Sigma 10-20mm F4-5.6DC/HSM and the Canon EF 24-105mm f4 L. Which one of these would be best suited to taking group ...
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2answers
139 views

How much have tele-prime lenses improved over the years?

Context I'm considering the Nikon 500mm f4 AIS P lens as a way to get longer reach that's better than my current setup Nikon 300mm f4 AF with 1.4x TC to get birds and related wildlife. I've heard ...
5
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1answer
304 views

Can you identify this M42-mount lens?

I found this lens in our attic, in a box. It is fully functional, all the iris and focus rings are turning smoothly, but it doesn't have the informations piece on its front. I tried so hard to find ...
2
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2answers
164 views

Are focus and noise problems I see with my Nikon D80 simply because newer cameras are better?

I can't seem to get photos with good focus or without noise. Is it the fault of the Nikon D80?I have read that cameras only two or three years old have much better light sensors and that that is what ...
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1answer
117 views

Should I change a 18-55 IS STM kit lens for a EF-S 24/2.8 STM prime?

I have a Canon 700D body with a standard 18-55 IS STM lens. Would I notice any improvements in image quality if I switch from the kit lens to an EF-S 24 mm 2.8 prime? I also have a 50 mm 1.8 STM, and ...
2
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1answer
150 views

Manual lens on analog EOS camera, metering problem. (Samyang 85mm f/1.4 on Canon EOS 650)

I have a Samyang 85mm 1.4 lens that I have used on a Canon 550D (Rebel T2i) and I have loved it. But now I want to use it on an analog camera, the Canon EOS 650. The problem I am having is with the ...
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1answer
79 views

What kind of lenses will work on an entry-level Nikon DSLR? [duplicate]

I am total noob at cameras/lenses so I don't know what I am buying. My cousin has asked me to bring 70-300mm or 18-300mm lens for his D3300. Now, I don't know what lens will be compatible with the ...
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2answers
177 views

35mm DX prime lense on dx crop sensor(nikon d3300) [duplicate]

I have Nikon D3300 DSLR. I'm confused with 35mm and 50mm prime lenses on FX and DX cameras. Somewhere I read that if a 35mm prime lens is used on a FX camera the focal length is equivalent to around ...
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1answer
206 views

Will Nikon D lenses work on a Nikon D810 camera?

Can a Nikon "D series" lens work properly and let me use the full potential of a Nikon D810?
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3answers
346 views

Why don't Canon and Nikon lock out third-party lens makers?

Context Odd question but looking at the market, I see Tamron/Sigma making lens for first-party companies such as Canon, Nikon and Sony. For manual lens such as Zeiss ( for Canon/Nikon) I see that ...
2
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2answers
633 views

What is the difference between these 200mm, 70-200mm and 70-300mm lenses?

I've been doing photography for awhile but I don't know a lot about lenses. I'm looking into 200mm(+) lenses (for future reference). I have a few questions about the difference between these lenses. ...
2
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2answers
76 views

Why “plane of focus”? [duplicate]

The spatial locus on which a lens/camera focuses (and so appears sharpest in the resulting image) is always referred to as the "plane of focus". My question is why does it have to be a plane? As I ...
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1answer
134 views

How useful is the 24-70 lens?

I am an amateur photographer. For the past few months I have been shooting with my 50 mm lens. Recently I am getting booked for more shoots, like family photos and maternity. It was suggested that I ...
6
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5answers
206 views

What is the safest and most convenient way to carry heavy lens so it's easy to switch in the field?

Context I use a Nikon 300mm f4 lens. It's a good lens but it's also rather heavy. Question What is the safest and most convenient way to switch teleprimes (or heavy lens in general) out in the ...
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12answers
6k views

Does it make sense to put an expensive lens on a cheap camera?

I've spent a while looking at lenses and their prices, and now I'm wondering... Does it make sense to bolt a really expensive lens onto a cheap camera? Or is the extra performance only worth it if you ...
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2answers
133 views

Chromatic aberration or lighting problem?

Over the weekend I went over to a photography shop, and they let me bolt various lenses to my SLR, including some seriously expensive ones. I took a few pictures, and was impressed. But when I got ...
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1answer
84 views

Can't decide which lens to get - wide angle vs 18-135mm IS STM [closed]

I can't decide whether I should get 18-135mm IS STM or some wide angle lens, which would cost approximately the same amount of money. I own 18-55mm IS STM and 75-300mm USM. I use Canon EOS 100D. What ...
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3answers
79 views

Lens recommendations? [closed]

Hi im an amateur and im really interested in learning photography.im not trying to be a proffesional i just want high grade quality shots! Id like to take studio grade pics of my newborn, family ...
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1answer
84 views

Can I fix my broken Nikkor 24-85 D?

I slipped with my camera the other day while at a wedding shoot. I fell on the lens and this happened: The lens is now stuck at 24 to 35. Has anyone here experienced this? Is there any DIY fix? ...
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3answers
392 views

How do I adjust aperture and ISO when using a manual lens on a Canon Rebel?

I have a Rebel T3 and have been fooling around with it for several years using all the dial options, except the manual ones. I have read up and understand ISO Aperture and shutter speed—somewhat....
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3answers
131 views

What lens should I get for my wife as a gift to go along with a Nikon D810? [closed]

I hope someone can help me. I've bought a Nikon D810 for my wife who's a keen amateur. Can someone help me with choosing a lens? She takes portraits and landscapes primarily, and I have to say I'm ...
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1answer
91 views

Is there any benefit to tilting the camera holder in a camera bag?

Would it be a good practice to tilt the pad inside the camera bag that sticks to the its side in order to prevent the lens from touching the bottom Instead of | | making it \/? I recently bought a ...
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2answers
255 views

How can lens cause consistent front or back focus?

I can understand body focusing problems, but I can't imagine why lens might cause front or back focus. I have two third party manufacturer lenses for my Nikon: one is front-focusing, the other is back-...
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1answer
75 views

Nikon Lens: A (Auto-focus) vs. A/M (Auto-focus/Manual)

I have two lenses which are 18-140 VR and 50 1.8G. On the 18-140 VR I got a button showing A and M while on the 50 1.8 I got a button showing A/M and M. I understand that A is for auto-focus and M is ...
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4answers
269 views

Does a 35mm DX lens, mounted on a crop body, have the same field of view as a 35mm FX lens mounted on a full frame camera?

I know that when you use lenses made for full frame cameras on a APS-C camera, you should calculate the crop factor. E.g., a 35mm lens designed for a full frame camera mounted on a APS-C body should ...
3
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3answers
182 views

Are there any cheap, fast lenses capable of highschool sports photography?

I recently took on my first paying client, and she is also into photgraphy. She usually does sports for her highschool yearbook. They just have an entry level Canon DSLR with a kit zoom on it that ...
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0answers
60 views

Nikkor 28-70mm F2.8 lens problem: AF and aperture don't work

I bought this lens second hand from someone who has no idea about this kind of thing. The price WAS low, but not low enough to justify a broken lens. It has no glass scratches and at 300£ it seemed to ...
4
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3answers
189 views

Using a focal reducer to match a lens to a crop sensor camera

Context So I've recently watched a video about how Tony Nortrup is referencing that you should buy the lens that perfectly fits your image circle, to get the most sharpness out of it, or so I'm ...
2
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5answers
319 views

Why does it seem like large sensors are necessary for good low-light performance?

Phone manufacturers have recently started advertising the size of the photosites on smartphone camera sensors. They argue that larger photosites lead to better low-light performance. I think a good ...
3
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2answers
564 views

Why is the Depth of Field Preview button necessary?

I've looked far and wide but i cannot find the answer for this question. I know some older cameras and lenses used to have aperture rings on them, which allowed the user to set how open or closed the ...
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1answer
36 views

Sigma 70-300mm 1:4-5.6 APO Macro super lens

Is there an adapter to fit the Sigma 70-300mm 1:4-5.6 APO Macro super lens to the body of a Sony a200
4
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2answers
100 views

What can I put inside a 39mm gel holder?

Context So I have a 39mm gel holder for my Nikon 300 f4. AF lens. Question What can I put inside it? It doesn't look like a normal filter will work.
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2answers
115 views

Is it safe to test a (possibly) salt-water damaged lens (Tokina 11-16mm) on a new camera body?

I have a Tokina ATX AF116 DXII S - 11-16 mm F2.8 AT-X (II) 116 Pro DX for Sony and I recently ruined my Sony α65 through a salt water wave which caught me out during a storm photoshoot. Weeks ...
2
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1answer
192 views

Does a lens exist that is parfocal, has a linear zoom throw, and is affordable?

I'm working on a project to create, essentially, a servo-powered zoom lens, using a (D)SLR zoom, a zoom ring gear, and a stepper motor. After mounting the zoom ring gear, I'll attach a pinion gear to ...
2
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1answer
141 views

How to obtain 180° FOV and little optical errors?

I'm thinking about building an all-sky camera, i.e. an automated camera that points straight up to the zenith and that captures the entire sky down to the horizon. The idea is to capture celestial ...
2
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2answers
151 views

For those that can afford fancy teleprimes is it preferred to use AF or MF for birds?

Context I'll be using a Nikon 300mm/f4 on my Sony a6000 and seeing what birds I can get with it. The Sony 55-210mm is what I've been using but it lacks the reach and native teleconverters. ...
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2answers
75 views

Nikon J1, takes pictures but they are all black, doesn't seem to “see” things, lens not the problem

I have a nikon J1, it has always worked well. Today I wanted to take a picture and the screen appeared black, like something was blocking the light completely or I was trying to take a picture of a ...
6
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3answers
754 views

Since it's not “focal length”, what is the term for the distance at which things are in focus?

I was under the impression that the “focal length” of a lens is the distance at which stuff appears in-focus. (E.g., perhaps I set the camera so that objects 3 meters away appear sharp, ...
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1answer
51 views

Underwater protection for lenses

I've got a Sony A6000 camera and planning to get Nauticam underwater housing for it. I've noticed the box is often shown (in pictures, videos and such) with a lens, but I can't seem to find any ...
5
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1answer
615 views

What is this large white Canon telephoto lens in a 1990 magazine ad for the EOS 1?

I am trying to identify this Canon Telephoto Lens seen on an ad at the back of an old copy of National geographic from Feb. 1990: I have tried to look for it on Google, but I can't find one that is ...
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3answers
392 views

Why do so many old cameras have camera lenses made in Japan?

I'm browsing what the world has to offer me when I want to buy old (circa ’70s or ’80s) camera, e.g., a Canon EX Auto QL. And I've noticed that most of them have camera lenses made in Japan. Was Japan ...
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1answer
79 views

How do I calculate the field of view of a 50mm focal length biconvex lens with the retina as sensor?

Hi I need to know the field of view of a 50mm focal length lens. I know the field of view is dependent on focal length of the lens and the image format dimension (i.e., dimensions of the sensor). If ...
2
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2answers
137 views

How do universal clip-on iPhone lenses work?

So, recently I see a lot of clip-on Universal iPhone lenses like this (aliexpress link). I have a CCTV camera at home. It has a lens which looks like this from m12lenses.com. Can I clamp these iPhone ...
4
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4answers
481 views

Does the same focal length on the same camera always result in the same FOV?

I'm confused about whether the same focus length across different lenses on the same camera always produces the same Field of View. Some lenses are advertised as wide-angle and some are not. Is there ...
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0answers
54 views

Canon vs Sigma vs Tamron lenses? [duplicate]

Is there a significant quality difference between lenses made by Canon and those made by Sigma or Tamron? Specifically, I have been looking at the EF 300mm f/2.8L IS II USM: but if the Sigma or ...
0
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5answers
95 views

Nikon D3200 wide angle lens [closed]

For the Nikon D3200. As far as wide angle lenses go the prices seem to range from the $20 bracket on up to very expensive. I'm sure the higher end ones have a lot of good stuff going for them but if I ...
1
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3answers
695 views

What does a megapixel designation on a lens actually mean?

I know that in a CMOS sensor the megapixels give you an idea of how many pixels are actually there to capture the light. In terms of a lens however, I cannot find any relation between the megapixels ...
2
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1answer
134 views

Lens cleaner got into my camera lens

I used some glass lens cleaner spray on my pretty old (but still good) Samsung PL20 earlier this morning. I just turned it on to take a photo, and found this... It looks like somehow some of the ...