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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2answers
61 views

What lenses are compatible with older Canon EOS DSLR?

I own a Canon EOS 1100D camera that was released in 2011. What lenses are still compatible with this model?
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3answers
136 views

Which lens is best for athletics?

I am an athletics photographer, and I have a dilemma. First off, I use the 5D Mark II body. Currently, I own the 100-400mm f/4.5-5.6 USM II, and I LOVE it... except for indoor photos. Before I ...
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4answers
745 views

Are my expectations unrealistic for Canon 70-200mm f/4L USM IS Lens?

I'm shopping for a 70-200 F/4 USM IS L, and took a few test shots with it. Here's a 100% crop with a focus point highlighted. It was shot handheld with IS on at 70mm / F4 / 1/400 sec. In-camera ...
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8answers
2k views

What is a good all-purpose, single-lens choice for a 7D, to take trekking in the Himalaya?

I'll be trekking in the Nepal Himalaya for 3 weeks in December, in a variety of conditions, but predominantly cold (-5°C to -30°c) , clear and dry, at altitudes of up to 6000m. I'm trying to travel ...
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1answer
58 views

What are the distinguishing features of various Sony mirrorless camera models?

I am not a professional photographer and it is basically my hobby. I would like to buy a mirrorless camera and I have thought to get Sony a6000. Most of the time I take pictures of landscape and ...
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1answer
625 views

Can the front glass on a broken lens be repaired?

I just newly broke this glass on my lens tonight. Wondering if I need to buy a new lens or if I can repair this. It is a Canon EF 85mm f/1.8 USM. This is my favorite lens to use for portraits!
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6answers
8k views

Why are push/pull zooms relatively rare?

The Canon EF 100-400mm f/4.5-5.6 L IS USM has a push/pull zoom mechanism instead of a zoom ring. Other lenses, like the Nikon 80-200mm f/2.8 AF that was released in 1988, use this type of zoom too, ...
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6answers
3k views

Why is the Tamron 90mm 2.8 marketed as Macro and not as a “portrait” lens?

My question is if a lens like a Tamron 90mm 2.8 could be used also for portrait. If not, why ? What are the difference between a specific portrait lens (like any 85mm 1.4) and a 90mm 2.8 ? Only the ...
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2answers
88 views

How to fix plastic mount on dropped Nikon 70-300mm lens?

I accidentally dropped my Nikon 70-300mm lens and two small plastics broke off. Can it be fixed?
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0answers
44 views

Which lens do i need to purchase [on hold]

I have a Canon T2i body. My main photography is everyday things, and action (sports baseball, basketball) but mostly
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7answers
4k views

How to know you've outgrown your equipment?

I have only started shooting recently, as a hobby. I use Canon EOS M100. I use a EF to EF-M adapter to use EF 50mm f/1.2L USM. The camera seems to have trouble focusing and light metering (with auto ...
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1answer
33 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
68 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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0answers
43 views

Proof of the relationship between the image area and focal length of a lens [duplicate]

It is a well-known fact that image area is directly proportional to the square of focal length of the lens. Is there any mathematical proof to it? (Possibly starting out with the lens equation and ...
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4answers
1k views

Experiences with lens repairs - Quality degradation?

A friend of mine fell with my new Canon EFS 15-85mm lens - nothing happened to the camera, but the lens is... well see for yourself: As you can see the top part of the lens looks bent towards the ...
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4answers
123 views

Why is zoom provided in Tokina 11-16mm?

I wonder what's the use of providing zoom in the Tokina 11-16mm. Why not make it an 11mm prime lens instead? It would contain less elements, so will produce sharper images. Also at such wide angle, ...
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6answers
9k views

What is the farthest a camera can see?

At what distance can a face no longer be identified using a camera? At what distance can a figure of a person no longer be captured?
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3answers
4k views

Samyang 14mm or Rokinon 8mm fisheye? Which is better for landscapes?

My camera body is a Canon 550D/T2i. Which one would be better for landscapes and why?
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1answer
163 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. ...
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2answers
76 views

Is it possible to get green and red chromatic aberration?

In one of the hallucinating scenes in a video I have played. The vision is blurry and objects nearer the edges of the screen are green and red Now the usual chromatic aberration patterns are purple/...
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5answers
5k views

Front element shattered, can I have my lens repaired?

Can I send in for repair a lens that has a shattered front element? UPDATE: The front element was not shattered, it was the UV filter. Factory diagnosis: Lens assembly had been impacted; cleaned ...
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1answer
113 views

What can I improve in my social dance photography?

I love shooting social dancers. Can you give me constructive feedback at my latest albums what I do you like and what you think I can improve? https://stanyakimov.com/albums/ All photos are taken ...
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6answers
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 ...
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1answer
62 views

What lenses have the most human eyelike images [duplicate]

I have heard wide lenses make your head inflated which isnt good for portraits like the telephoto which deinflates your head. So If I use 35mm prime on full frame. Does it mean I will get perfect ...
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6answers
30k views

Is it worth to upgrade from Canon 50mm f/1.8 to Canon 50mm f/1.4 on 550d?

I'm a newbie in the world of DSLR photography, having played around with my Canon 550d for few months. After posting my first question here and getting some superb advices I decided to buy Canon 50mm ...
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2answers
129 views

Why do I get so many unsharp pictures with my Canon 70-200 IS f/2.8?

Please take a look at the picture below. You can see where the focus point was thanks to a LR plugin. But the image is unsharp - again. And yes, I'm sure the dog was standing still enough for 1/250 ...
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1answer
188 views

Can a camera be a mile long?

Could parts of a camera be spaced out over a distance rather then together to work in a way a normal camera cannot? What characteristics would this camera have over a normal camera? In the picture ...
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3answers
144 views

Does a camera have to have a contiguous housing?

The lens group in this picture would have its own protective lens tubes like the one on a camera but one for each lens group. What would be an issue having a gap between the lens group and stray light ...
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0answers
214 views

What causes this repetition pattern in a picture? (when re-arranging its pixels by their intensity - code included) [closed]

Just out of curiosity, I was playing with RGB coordinates and pixels of pictures. Then for some reason I decided to get all pixels of a picture, get the RGB coordinates/values of each pixel (eg. RGB(...
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4answers
2k views

Can Canon T70 be converted to digital?

Is it possible to convert my Canon T70 to digital format? Will I still be able to use my collection of lenses after conversion?
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1answer
50 views

Can the MTO-11 mirror lens be extended to 2000mm using an extension tube

In this link https://www.dyxum.com/dforum/ayone-knows-the-mc-mto11ca-10-1000-telephoto-lens_topic12136.html A poster claims that the 1000mm mto-11 can be extended to 2000mm by removing a stop and ...
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1answer
116 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 ...
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3answers
14k views

What is a zone plate?

I was looking into alternative methods of photography and I happened upon something called a 'zone plate.' Three questions: What is a zone plate? How does it work? What can I do with it?
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2answers
528 views

Is this a bubble in my lens element?

Both images show the same artifact.
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4answers
34k views

Why prefer the 18-55mm and 55-250mm lenses vs 18-200mm?

There seems to be a preference for to have the 18 mm - 55 mm 55 mm - 250 mm lenses, but no mention of why they're better than a single 18-200mm. Could someone please explain why the two separate ...
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1answer
59 views

What is the mount with three tabs and two linkages on these Albinar lenses?

I have two Albinar lenses that I want to identify the lens mount for so that I can buy an adapter for my Sony A5000 (E mount) camera. I bought them at a yard sale recently. They are vintage lenses. ...
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4answers
124 views

Can I use 50mm f2 lens to take building photos?

Can I use 50mm f2 lens to take building photos? In my case will be an Yashica ML 50mm f/2.
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4answers
89 views

Does white balance change from lens to lens? [duplicate]

Does white balance change from lens to lens? Though I think it does not, the reason I ask is auto white balance with a wide-angle lens seems to be different from auto white balance with a macro lens. ...
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1answer
73 views

How can I tell whether or not a lens has focus breathing?

So recently I got a 90mm macro lens, installed a focus bracketing app onto my camera and let it run. Unfortunately, turned out that this lens has focus breathing which means the actual zoom level in ...
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3answers
128 views

Which are the best lens for Street Photography? [closed]

I'm considering to buy an Olympus Pen F and I have to choose between two offers: the former comes with the 17 mm lens and the latter includes the 14-42 mm and is 50 euro cheaper. I'm interested in ...
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2answers
55 views

Is the Canon EF 50mm f/1.8 STM compatible with the Canon 4000d? [duplicate]

I'm a photography enthusiast and I'm looking to buy a canon 4000d and a lens for it, but am not sure whether it's compatible with a canon 4000d or not.
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3answers
134 views

Need help choosing between two DSLR/lens setups

Currently, I use my smart phone's camera to photograph cars, trucks, and auto racing. I shoot outdoors, mostly in daylight, but often in gloomy overcast weather. Occasionally, I may shoot at dusk. I'...
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0answers
30 views

Fujifilm Instax mini 90 lens cover won’t close

My mini 90 neo classic camera lens cover won’t close when turned off. Please help To note: took it to the beach to take some pictures and there was a storm happening and lots of sand was blowing ...
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2answers
74 views

Lens(es) for Pentax K70 (in Iceland) [closed]

I've bought the K70 with the DAL 18- 50 WR some time ago. I'm still really new to photography and don't have much knowledge yet about it. In almost two weeks I'm going to Iceland and I'm planning to ...
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2answers
3k views

What are the differences between these two Nikkor 70-300 lenses?

I am looking to buy a telephoto lens for my Nikon D5500 (I already own the 18-55) and am considering these two telephoto lenses: AF-P DX Nikkor 70-300mm f/4.5-6.3G ED VR AF Zoom-Nikkor 70-300mm f/4-5....
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2answers
119 views

Why is there motion blur at the edge of photos?

I’ve noticed a problem that has appeared recently with my Nikon D7200 and 18-140mm kit lens. When I take photos of distant objects, I get what looks like a motion blur at the edges. I have looked up ...
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1answer
55 views

Is there an online lens diffraction and maximum sharpness table?

I simply want to see an table that lists the lens diffraction limit of each camera. I have came across this well done answer with animated PNG and I realized there i also the perfect sharpness ...
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3answers
231 views

Why are landscape photos “subpar” on Canon EOS 750D with Sigma 17-50/2.8 lens?

I currently own a Canon EOS 750D (Rebel T6i), which I mostly use with a Sigma 17-50/2.8 and a Hoya circular polarizing filter. However, I can't help but feel disappointed when in looking at my ...
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7answers
20k views

Is acetone safe and effective as a lens cleaner?

I recently came across a clip on youtube which showed the process of making camera lenses. I noticed them using acetone as a lens cleaner. My question is how effective is acetone as lens cleaner? Will ...
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2answers
112 views

How to decide which MM lens to use? [duplicate]

I recently purchased Nikon D5600 with dual lens. It has come with: AF-P: 18-55 mm, and AF-P: 70-300 mm lens I was just going through Nikon School videos and it was showing one 18-105 mm lens. I ...