Stack Exchange Network

Stack Exchange network consists of 174 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

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.

0
votes
0answers
39 views

Canon Rebel T3 Taking black pictures - NOT stuck shutter

When I take a picture using my 18-55mm lens and my 55-250 mm lens all of the pictures come out black. I can see the shutter closing and opening in the lens and when I look through the viewfinder it ...
0
votes
1answer
48 views

how to choose the lens for optical system?

I have a circular fluorescent screen with 25 mm diameter. When the electron beam pass, it produces visible light.I want give beam image with CCD camera (1.2")(1032*779 pixel, size of pixel 4.65 ...
0
votes
2answers
129 views

What lenses for a current system can I use with a Nikon 1 series camera?

I have a V1 that I'll eventually be upgrading. In the meantime, I was hoping to purchase some lenses that I can use with an adapter for the V1, but then will be able to use with my future camera ...
0
votes
1answer
43 views

Canon Rebel T3i broken autofocus or lens

First off I’m only a beginner. I love to take and edit pictures but I’m no professional and know nothing about any of the special features my camera has to offer me. I bought the Tamron 16-300 mm ...
0
votes
1answer
63 views

Will a Vivitar 75-205mm 1:3.8 be compatible with my Nikon DSLR?

I have a Vivitar 75-205mm 1:3.8 close focusing auto zoom. I'm not a photographer and I would like to know if it can work with a Nikon D3100. On the ring (bottom) it's written "patents applied for N/Ai ...
0
votes
2answers
152 views

Why does my Nikon 12-24 1:4 G ED lens get recognised as Tokina lens?

I recently bought a used Nikon 12-24mm 1:4 G ED lens in almost mint condition. My camera is a Nikon D5100. I compared it to the similar spec Tokina 12-24mm by looking at a lot of different reviews ...
0
votes
4answers
177 views

How to get lens serial number from Exif?

I want to write down model name and serial number of my camera body and camera lens, in case they are lost or stolen. Where can I find those data? Lightroom provides all data but serial name of lens. ...
1
vote
2answers
154 views

Nikon 105mm f/2.8D or Nikon AF S NIKKOR 85mm f/1.8G

My lens broke down so I am in a market for a new one. Ideally I would love to purchase one lens for both macro (I photograph jewelry) and portraits (I am an amateur striving for a creamy bokeh). I ...
-1
votes
3answers
93 views

What Lens to Buy

I'm a veteran hobbyist photography with a so-so photography IQ in the moment, by no means a settings expert. I often shoot landscapes and wildlife, but also will be taking pictures for my university's ...
-1
votes
1answer
54 views

Canon or Tamron 70-200mm F2.8 [closed]

This is a two parts question 1) Is there a significant reason I should get the Tamron 70-200 G2 rather than the Tamron SP 70-200mm F2.8 Di VC USD? 2) Would getting the Canon 70-200L (first version) ...
2
votes
3answers
99 views

Compact digital or mirrorless camera?

I am new to the camera game. I have a 2 year old and a 7 month old, and would like to invest in a camera for capturing memories. I would like a camera that: Can capture fast moving kids Photographs ...
-3
votes
0answers
52 views

When you go in one of your travels, what type of lens you take with you? Why? [duplicate]

When you go in one of your travels, what type of lens you take with you? Why?
1
vote
1answer
71 views

Why is the Canon-mount Sigma 24mm F1.4 DG HSM Art sharper in the corner in DxOMark's ratings than Nikon-mount version?

Why is the Sigma 24mm F1.4 DG HSM A lens corner sharpness much better in the Canon version than the Nikon's, according to DxOMark's ratings? Canon: https://www.dxomark.com/Lenses/Sigma/Sigma-24mm-...
1
vote
1answer
151 views

Is this lens decentered?

I bought a second hand lens yesterday, but I'm not sure if it's decentered or not. When buying it, I did some tests to make sure it was not decentered, but when I repeated the test at home I'm not ...
4
votes
1answer
121 views

Unsure about if the lens is genuine or not

So I just bought a lens [AF-P DX 70-300mm f/4.5-6.3G ED VR] from Amazon and it came in clearly a repackaged box with the lens wrapped in bubblewrap, a milky white rear cap and lacking the lens ...
1
vote
2answers
71 views

200mm on 48MP body (with 2x digital zoom) vs 400mm on 24MP body

Is the "quality" from a 200mm lens on 48MP body (after a 2x digital zoom) going to be same as one on 400mm on 24MP body? Assuming the same apperture
4
votes
3answers
851 views

What kind of lens is used in this picture of Earth?

The photos in an answer to this question show the Earth as very small as seen from the moon. I suspect that the lens used doesn't reflect how our eyes would see the Earth from the moon. Is there a way ...
7
votes
2answers
990 views

Is a 70-200mm f/2.8 without IS suitable for high school sports under artificial lights?

I have an opportunity to buy a Canon EF 70-200mm f/2.8L USM. It is in like new condition. I need to make offer. I mostly shot high school football and wrestling. I'm not a pro. Will I be OK with ...
1
vote
1answer
103 views

Full Frame Lens instead of MFT Lens - on a budget [closed]

I would like to buy a wide-angle lens (around 10 - 20 mm full-frame-equivalent) for my MFT camera (Panasonic Lumix GX80), but all MFT lenses in this focal length area are way above my price limit. ...
0
votes
2answers
68 views

Can i stack both a lens and a (variable) ND filter on a phone camera?

I am o total noob so forgive the blunders. I am interested in filming my travels with a Samsung S7 mobile phone, so the upper level of amateur is enough for me. So video, not photo. What i want is to ...
-3
votes
4answers
79 views

Best lens for my D5300 [closed]

I travel a lot and enjoy taking pictures of old structures, landscapes, as well as alleyways, staircases, and doorways. Can you recommend an all around lens for my Nikon D5300. Ps. A little zoom ...
4
votes
1answer
75 views

Why do CCTV and pro camcorder lenses often have vignettes, and apertures that can be fully closed?

I noticed this on both CCTV and "TV lens" C-mount lenses. Is this for manual black level calibration, or protecting some early sensor or *icon tube style from wear, or entirely another reason? It ...
0
votes
0answers
41 views

Pentax DA 18-270 with K10d

I've bought a used Pentax DA 18-270 for my Pentax K10d. Unfortunately it doesn't work as expected. Focus is slow as hell (much slower then the kit lens), often fails to focus. I've upgraded K10d to ...
0
votes
1answer
39 views

Eccentric/collimating mechanisms in lenses - do they compensate for glass or mechanics?

Some lenses include eccentric rings, or elements in adjustable via a three point fixture, or similar collimation adjustment facilities. Do these correct for inaccuracies in the way the glass is ...
-1
votes
1answer
53 views

Canon lens 24-105mm macro error, please help

the body is great with 50mm lens but, when I change the lens 105mm len,( 7 years old ) it have motor noise when attach to the body, take photo will be error and hangs. lens do not works, no focus, ...
0
votes
3answers
85 views

How exactly is “flange” defined in the term ''flange distance"

The concept of a flange distance is something I understand on a theoretical level, but not so much on a practical level. It is debatably the most important measurement in the camera, determining the ...
3
votes
4answers
248 views

Why are all the mirrorless full-frame 35mm f/1.4 lenses so big?

The Sony FE, Nikon Z and Canon R mounts all have flange distances shorter than the Leica M mount, yet Leica has the compact Summilux 35m f/1.4 design whereas the above's comparably speced lenses are ...
4
votes
4answers
145 views

How to capture the depth and enormity of a deep ravine? [duplicate]

I was recently out on a hike and came across a dry waterfall in a deep ravine. There was a viewing platform, and I took several shots. The problem is, that everything was flattened. The enormity of ...
1
vote
1answer
96 views

How can I fix a Canon lens with sand in the aperture diaphragm?

I have a 17-85mm Canon lens which I was using at the beach the other day. A sudden hard blow of wind caused sand to be thrown on me and my camera. Afterwards, the camera would give the Error 01 code ...
-1
votes
0answers
24 views

How can I make a magnifier so I can use my smartphone as a telescope? [duplicate]

I love the night sky. I got this idea of capturing night sky using my mobile phone. I know I should use a magnifying instrument like a telescope. But I have no idea how to make one that would fit with ...
1
vote
2answers
117 views

Why are subject's eyes out of focus with EF 28-70mm F2.8 L?

I purchased an older 28-70mm F2.8 L Series lens. I'm trying to use it to take portraits on a Canon 5D Mark III. However, when I use autofocus at 70mm, the eyes are not in focus and the face seems ...
-2
votes
1answer
120 views

Panasonic/Leica 15mm 1.7 vs DJI 15mm 1.7 [duplicate]

Is the DJI as sharp as the Leica on a OMD E-10 Mark II ?
1
vote
2answers
103 views

Can I use a polarizing filter on a non-STM lens?

Almost every single review of an STM lens mentions the following: The front end doesn't rotate while focusing, which is great for using a polar filter. Does this mean that I can't use a ...
10
votes
4answers
900 views

Does a large mount diameter really allow design advantages for large aperture lenses?

To keep the conversation simple, please focus only on native lens design for the mount. So with the recent Nikon mirrorless announcement, Nikon has been touting the bigger mount. I am no expert in ...
0
votes
2answers
110 views

How to verify whether the invisible/removed fungus in the second hand lens is dangerous? [duplicate]

Assuming there is no huge visible fungus, inside, how to verify whether the second hand lens is affected by spores? It is said that spores don't die and fungus may regrow. Also it is said that if we ...
-1
votes
2answers
115 views

Why don't my calculations based on a crop factor of 1.5 work for the Nikon P1000?

I know that Nikon cameras APS-C sensors has a crop factor of 1.5 but if we apply this to calculate the equivalent focal lenght in 35mm format for the Nikon P1000 camera we will not get the exact ...
1
vote
1answer
125 views

What can I expect with stacked lenses for extreme macro photography?

I need your opinions on stacked lenses setup for extreme macro photography. I own a Nikon D5600. I bought a Nikon AF-S 40mm f1.8G Micro lens together with the body. Then, Nikon, as a part promotion ...
4
votes
2answers
124 views

Polarization and Rainbows

Why when I use a polarized lens if I turn it one way the rainbow disappears and the other way it brings it out better to the point you can see the second double rainbow when the naked eye can't? Is ...
2
votes
2answers
86 views

Circle Imprinted on Photos - How to Get Rid Of? [duplicate]

Recently some photos I've taken have had a band of circles imprinted on the pictures. Is this caused by my filter or something with the lens itself? Attached a photo for reference. It only happens ...
1
vote
1answer
127 views

What filter size for a Canon PowerShot SX430 IS?

What size lens filter do I need for a Canon PowerShot SX430 IS? I have a 40.5mm UV filter, but it does not fit.
1
vote
1answer
86 views

Why Does Depth of Field Happen? Is there a simple explanation? [duplicate]

I think if our eyes are good there are not many situations where we naturally percieve a shallow DOF. How is it that lenses create this? What happens for shallow DOF to happen in photos and on movies?
1
vote
1answer
41 views

Is Sigma's lens hood LH-825-03 compatible with a 18-50 2.8 EX DC HSM Macro?

I'm looking for a replacement hood for my 18-50 f/2.8 EX DC HSM Macro, but I'm not having much success. I've instead found some hoods for the 17-50 OS (stabilized) version, which also has a 72 mm ...
4
votes
3answers
170 views

Should I avoid used lenses involved in video shooting?

When looking to get a used lens, I was told by a fellow (amateur) photographer to avoid buying lenses involved into video shooting. He didn't gave any explanation and left before I could ask him. ...
-3
votes
1answer
70 views

Lens upgrade for Canon EOS 1100D [closed]

I have 18-55mm kit lens as well as 55-250mm, 50mm/f1.8 and 24mm/f2.8 lenses. What lenses should be required for upgrade in future?
8
votes
3answers
531 views

Sigma 150-600mm vs 300mm prime with extender?

Just wanted to get a few opinions since I'm a beginner. I recently purchased a Sigma 150-600mm lens, and I'm wondering if I made the wrong choice. I still have time to return or exchange. I'm ...
1
vote
1answer
48 views

Samsung NX3000 lens broken ribbon flex cable

I was trying to get sand out of my lens and accidentally broke one of the flex cables. I want to fix it myself but I don't know where to get the right replacement for the specific part it was attached ...
1
vote
4answers
848 views

How to find the focal length used by looking at image contents without examining metadata?

By looking at a photo, how can one tell what focal length was used without looking at the photo metadata?
0
votes
1answer
212 views

Nikon D3300 takes black images in daylight after fall: is it the body or the lens?

I have a Nikon D3300 DSLR with 18-55mm lens. It was working well, but yesterday fell from the tripod. Now, I am trying to take pictures, but it just says the subject is too dark and can't adjust the ...
1
vote
4answers
127 views

FX 50mm on DX sensor giving same picture as DX 50mm on DX sensor? [duplicate]

One of the lenses I have for my Nikon D3200 is the 50mm f/1.8 FX lens, which when placed on the DX sensor should act like a 75mm f/2.7. On my Sony a6000, I have a 55-210mm f/4.5-6.3 lens made for the ...
2
votes
3answers
268 views

What do the F and f numbers written on lens mean?

On this particular lens rim is written "F:2.6 f=3.8mm". What does it mean? Focal point 3.8 mm and aperture 1/2.6 of the focal point ???