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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4
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2answers
502 views

How to identify the original manufacturer of lenses branded Vivitar?

There are Vivitar-branded lenses for which I wish to identify the manufacturer. I have read that Vivitar encoded the manufacturer in the serial number, so in principle, I just need to find a list of ...
0
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1answer
185 views

Newborn photography - Lens for crop Nikon D7200

I want to start photograph newborns. But know I am pretty comfused which lens would be good on my Nikon D7200 crop camera.? Everywhere i look for information all suggestions are for full frame camera. ...
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1answer
135 views

How much does it cost to repair a dropped 70-200mm f/2.8 lens?

I just dropped a 70-200 f2.8 lens and the images are pretty washed out and blurry. I am really sad about it since I just borrowed it from one of my friends for the weekend. The exterior of the lens ...
3
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1answer
897 views

Which terms accurately describe the lens mount on a Canon 7?

I've gotten a used Canon Model 7 rangefinder camera from my grandfather. I'm given to understand that it's a reasonably cool old camera, and the 50mm/1.4 lens isn't too shabby either. I am ...
0
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2answers
87 views

Is my Nikon 18-200mm 1:3.5-5.6G lens with broken front glass beyond repair? [duplicate]

My lens broke somehow. I didn't drop it as far as I remember, but the cause of the drop isn't really the point... a part of my lens broke, and my lens cap is stuck to it. Is my lens a goner? Can I buy ...
3
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3answers
1k views

How to disassemble a lens assembly?

I recently picked up an Olympus OMZ 50mm f1.8 pretty cheaply of ebay. The front element has a slight mould on the rear side although so far I've not seen this affect the image quality. Disassembling ...
0
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1answer
44 views

How does registration distance affect lens distortion and aberration correction?

If I use a lens with an extension tube, how does changing the distance between the lens and camera affect optical correction of distortion and aberration via glass elements (as opposed to digital ...
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1answer
116 views

What should I do when my D3400 aperture is stuck no matter what lens I use?

I have a D3400 and recently I haven't been able to change the aperture on any of my lenses in manual mode. I have lenses with aperture rings and if I set the aperture to anything below the largest ...
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1answer
56 views

angenieux 14 x 8

Can anybody point me to a place online with information on this piece. I am trying to determine value for a client for estate purposes. Thank you in advance. Other marks Serial #1526825. F.8.112 MM....
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6answers
35k views

How can I easily tell if a sensor or lens is damaged?

I am pretty interested in recognizing any damage to digital camera in very low level (without any advanced tests). For example, how can I identify the damage of a sensor or lens? If there are any ...
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2answers
219 views

How can I do 4x5 rise/fall movements with super wide angle lenses?

I'm looking for super wide angle lenses, ideally 50mm and below. I'm only interested about decent rise/fall movements because I do mostly architecture, and I'd like to be very close to the subject. ...
0
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1answer
47 views

Are sensor swabs (used but good, or new) and fluid a good choice for internal element cleaning?

From experiments, it seems that lightly-used sensor swabs (that are NOT contaminated with oils or abrasive particles) make reasonably good internal lens element cleaners and dryers (they are actually ...
4
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4answers
820 views

Lens Cleaner Recommendations

What is, in your opinion, the best lens cleaner? Which do you think is the most effective/best value for your money/most easy to use, etc. Please include advantages/disadvantages as well as price and ...
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4answers
133 views

Trying to pick my first good lens [closed]

I have been trying to pick out a new lens and think I have narrowed it down to three: 16-35 f/2.8, 24mm f/1.8, and 24-70mm f/2.4. I will be taking mostly landscape and nature (not wildlife) and ...
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1answer
72 views

What is causing Samsung NX1000 to report “No lens fitted”?

I have a Samsung NX1000. I am getting a no lens fitted sign on the screen. It is the correct lens that came with the camera. The focus also seems blurred. What could be the problem?
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4answers
173 views

Second lens after Nikon 16-80 mm: Nikon 50 mm f/1.8g or other? [closed]

I know that comparing lenses is a subjective and often futile effort, but I hope that if I convey my priorities and current understanding (as a relative beginner), I can still gain a lot of insight ...
1
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1answer
106 views

How good is the Nikon 70-300mm lens that comes along with the Nikon D5600?

I'm planning to buy a new camera (Nikon D5600) and it turns out that they have two variants. One of the variants come with the usual 18-55mm lens and a 70-300mm telephoto lens. The build as per me, as ...
4
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4answers
4k views

Canon EF135mm f/2L vs 70-200mm f/2.8L IS for Indoor shooting

I'm doing an indoor shoot of a large event with lots of people (which I was informed the lighting is "dark-ish" -- think large party) and I'd like to get candids without getting too close. I'm split ...
1
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2answers
41 views

How will a coating defect affect my images

I have rented an RB 67 and the 90mm lens it came with seems to have a very visible defect on the coating of the front element. How is this likely to affect my images? And what sort of scenes/lighting ...
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2answers
306 views

Why doesn't the aperture change on a Nikon AF 50mm ƒ/1.8D lens? [duplicate]

I am facing problem with a Nikon AF 50mm ƒ/1.8 lens which is attached to a Nikon D7100. Although I can change the aperture from the camera (in M mode) it seems that it is not changing in photos. What ...
0
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2answers
143 views

What's the best choice of lens from an optics surplus shop to get a Stanhope Lens-like magnifying function?

I am looking to do some experiments with my cellphone and a lens, holding the lens in contact with my cellphone lens. I'm looking for a lens that has the shortest back focal length length possible, so ...
2
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5answers
2k views

Does a full frame lens require more light on a crop body? [duplicate]

When using a full frame lens on a crop body, does the lens require more light? If I use an f/2.8 full frame lens on a crop body, does it become an f/4.2 (*1.5)?
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3answers
151 views

Does the autofocus system look through the lenses?

I have a doubt about the effect of putting a filter (polarizer, UV etc) on the autofocus system. In theory, a lens which is put in front of the lens will affect the focus (we must set a different ...
13
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6answers
1k views

What lens characteristics contribute to attractive lens flare?

Some lenses give really harsh and unwanted flares. Some gives beautiful flares that add depth to an image. What's the science behind this?
46
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7answers
10k views

How do constant aperture zoom lenses work?

Cheaper zoom lenses usually are faster at the wide end and slower at the long end (for example, the $150 Canon EF-S 18-55mm f/3.5-5.6). More expensive constant-aperture zoom lenses have the same ...
1
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1answer
152 views

Why does aperture change when I zoom my lens even in manual mode? [duplicate]

I have my Nikon D7500 set to Manual Mode. I can change the shutter speed and it maintains the setting. When I change the aperture, the setting is not maintained and varies depending on the zoom of ...
0
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1answer
91 views

Using a Sony E mount lens on a Nikon body? [duplicate]

I was just wondering if it's possible to use a Sony E mount lens on the Nikon D3200 by using an adaptor? I recently got given a Sony lens for free so I dont want to get rid of it.
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3answers
288 views

Why doesn't lens focus after turning focusing ring while set to autofocus?

My brother tried my new camera and was turning the focusing ring quite harshly on auto focus. (50mm canon lens) I’ve read multiple similar questions but nothing is quite what I mean. Ever since my ...
5
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5answers
2k views

Will a filter cause more or less damage when lens is dropped?

I recently dropped my camera bag from around waist level to the ground. The ground is somewhat padded (carpet) and the bag itself has padding (the typical messenger type of bag's padding). The camera ...
1
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5answers
299 views

How to prevent lens cap from being put on backwards?

Today, I tried to take a picture with my wife's camera, and when I was done I went to put the lens cap on, but the outward part was facing the lens, and now the lens is scratched. Very, very expensive ...
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0answers
33 views

Opticam 135mm 1:2.8 lens repair

I'm working on repairing the aperture of this lens I picked up really cheap as a "lets see if I can" sort of project and I've hit a road block to getting the aperture out of the lens. Basically under ...
0
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1answer
35 views

Olloclip Macro 21x lens for iPhone able to shoot objects far away?

Can Olloclip Macro 21x lens for iPhone be used for shooting objects far away? (note: amateur in photography and lenses seeking help from experts)
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2answers
97 views

What type of 3M vinyl should I use to protect the body of my lens?

I bought an expensive lens which I would like to aesthetically protect in order to keep its resale value high. This means that I want to minimize the chances of any scuffing, scraping, or scratching. ...
0
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0answers
31 views

Which Lens will keep the subject and background in focus? [duplicate]

I am an amateur photographer. I have a normal lens 28-80 lens. When I take a picture with this lens the subject in the photo comes into focus but the background remains blurred. I have another lens ...
0
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1answer
69 views

What is behind this symmetric coma like effect, and literally odd-ball bokeh, in a triplet lens?

The example picture, shot with a vintage triplet (Staeble Kata 45mm/f2.8, wide open, on APS-C, no further crop), shows a curious shape of coma-like cross pattern in the right- and leftmost sculptures -...
3
votes
2answers
318 views

What are the differences among the various Rodenstock Sironar lenses?

I am hoping to buy a used 210mm Rodenstock Sironar N, which I understand is the same as an Apo-Sironar N. But I see a Rodenstock Sironar for sale on eBay, with no letter following. Where does that ...
0
votes
1answer
313 views

I have made the lens dirtier than before cleaning it. How can I recover from this? [duplicate]

After some testing, I determined that there was some dirt on my 18-50mm lens. Here is the photo of a white wall with my 18-55mm: You can see the settings of above photo here: Here is the same wall ...
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0answers
159 views

Kit lens on an Olympus OM-D E-M10 Mark II not being recognized?

I have an Olympus OM-D E-M10 with the kit lens, which reads Olympus 14-42mm 1:3.5-5.6 EZ ED MSC 0.2m/0.66ft-∞, and for some reason today, when I turn it on, the lens goes in and out (zoom) ...
1
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2answers
9k views

Can I use a Speedbooster with a Canon EF-S DSLR?

Could you please give me some advice about a speed booster? I have a Canon EOS 750D. Lately I have been taking quite a few night event photos. I do not have a fast lens (and can't afford one) and my ...
3
votes
2answers
263 views

Is the Nikon AF Zoom-NIKKOR 80-200mm f/2.8D ED Lens a good Martial Arts lens for the Nikon D7500?

Let me try again. I am not sure how people know about the unpublished differences between lenses with the same specifications, or age/compatibility, due to my unfamiliarity with lenses and it seems ...
4
votes
5answers
385 views

Can high/fast shutter speeds have negative IQ results?

I have a Canon 600D with a Canon 70-200 f/4 L lens. I mostly shoot during the day, in bright daylight, and I love sharp images of people with a blurry background. Now to achieve that, I keep my ...
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1answer
74 views

Which Nikon DSLR and third-party lenses should I buy? [closed]

I was torn between the D5600, T6i, T7i, and D7500 bodies, but when I held the T7i and the D5600 the Nikon had a hugely better handfeel. There was no D7500 to hold and while it is faster I am leaning ...
4
votes
3answers
3k views

Which EXIF tag to set for the 35mm equivalent focal length?

For a manual lens (*Rokinon 8mm f/3.5 Fisheye) I want to add the focal length information to the EXIF metadata in the resulting pictures with exiftool. I use the lens on a Canon 60D body. Obviously I ...
10
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6answers
3k views

Which prime lens to get after the 18-55mm & 55-250mm?

I started out with the 18-55mm IS kit lens on my Canon EOS 550D over a year ago, and added the 55-250mm IS a couple of months back to augment my telephoto reach (based on the recommendations in one of ...
0
votes
2answers
130 views

Blur image with a 1/2“ lens on a 1/3” sensor

When I put my 1/2" lens on my 1/2" sensor, the image is perfect, but when I put the same lens on my 1/3" sensor, everything is very blur, even when I focus at maximum, so I need to put an extension ...
0
votes
2answers
75 views

Aperture and the understanding of how it works [duplicate]

So over black friday I bought this bundle, which is the Nikon D3500 two kit lenses. I was wondering, I keep hearing people talk about aperture and using F11-F16 but on those lenses that I have, all I ...
5
votes
6answers
1k views

What equipment should two very amateur photographers bring on a very short safari?

My girlfriend and I will be going on a 3 day/2 night safari in Kenya (Masai Mara). I'm looking for an inexpensive way to upgrade our equipment in the best way possible. We know next-to-nothing about ...
1
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1answer
64 views

How to perform lens shading correction given downsampled lens shading map

I'm working with the HDR+ Burst Photography Dataset. The burst RAW images are provided in DNG format. For each image, an additional low-resolution floating point lens shading map (encoded as .TIFF) is ...
2
votes
1answer
356 views

How to figure out the order of lens elements in the rear group?

I bought a second-hand Canon 100D after I got into photography this summer, and got to use a vintage lens that was still attached to my dad's Pentax ME Super (Asahi Pentax-M 50mm 1.4 SMC, a great step ...
1
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3answers
213 views

Reason for offset in lens/sensor and tripod mount?

I have noticed that my Canon Powershot G11 tripod mount is more in the center of the body of the camera and not aligned with the lens/sensor. Is there a reason for this? My concern is that as I rotate ...