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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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1answer
94 views

Blurred corner problem

Nikkor 18-105 VR lens. What could cause such blurry left bottom corner? Is there anything more that I can do to diagnose problem? I have already tried the lens on different body with same result. ...
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1answer
245 views

Converter and lens combination to try on sony a7 or a6000

I have bought an a6000 with the kit lens, and it takes nice pictures but I miss some things that I was able to do with my Canon DSLR and old lenses. I have kept some of my Canon lenses. Should I buy ...
2
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3answers
259 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 ...
7
votes
2answers
472 views

Does lens age affect color produced?

I came into some discussion with my friend, and my friend said that age may affect the color produced by the lens, i.e., a newer lens produce better color than an old lens (of the same model). Is this ...
0
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1answer
280 views

How do the 35mm Zeiss Loxia vs Sony Zeiss Sonnar compare for IQ for landscapes?

How do the Sony Zeiss Sonnar 35mm f/2.8 and Zeiss Loxia 35mm f/2 lenses compare on the Sony a7? (I am interested more with image quality than ergonomics, build quality, price, etc.) I am ...
0
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1answer
482 views

Does the Canon EF-S 24mm f/2.8 STM Lens offer any significant advantage over the Canon 18-55mm IS II at a 24mm focal length?

Does the Canon EF-S 24mm f/2.8 STM Lens offer any significant advantage over the Canon 18-55mm IS II at a 24mm focal length (the kit lens for my T3i)? I'm looking for a cheap lens that offers a wide ...
0
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2answers
115 views

Why are lower focal length lenses wider? [duplicate]

Most of the wide angle lenses are lower focal length and the telephoto lenses are of longer focal length. Can someone explain (scientifically) to me how shorter focal length of the lenses is help to ...
2
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3answers
155 views

What is the best lens for shooting flat surfaces?

For a long time, I was making closeup photographs of flat surfaces using my cropped DLSR and Canon EF 50/1.4 lens. The scene was illuminated by an external flash. The focusing distance was the closest ...
7
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1answer
219 views

How is Nikon's PF optics different from and similar to Canon's DO optics?

Nikon has just announced a new 300 mm lens featuring a new technology called "PF" or "Phase Fresnel." This has been compared to Canon's existing DO (Diffractive Optics) lenses such as the 400 mm f4 ...
2
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3answers
455 views

Why is my Canon 55-250 IS lens blurry at focal ranges beyond 100mm?

I recently purchased a used Canon 55-250mm IS lens and it works nicely at 55mm(even with lower shutter speed, and f/4 aperture), but turns out quite blurry at longer focal lengths, even with a shutter ...
1
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1answer
173 views

How do add on macro smartphone lenses allow you to take macro photos?

It may sound obvious, but how exactly does an add on macro lens allow you to take close up photos? Can someone give technical reasons? I'd like to know the physics behind add on macro lenses and how ...
4
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4answers
222 views

Is it possible to get smaller aperture with diaphragm in front of the lens?

My camera has narrowest aperture of f8. To increase depth of field, could I place an opaque "filter" or lens-cap with a small hole, e.g. 12 mm for f16, on the lens? I realize that at short f.l. the ...
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0answers
119 views

How does the Tamron 70-200mm F/2.8 without VR/IS compare to the Nikon 70-300mm F/4.5-5.6 VR?

I'm looking at two different lenses. The Tamron AF 70-200mm f/2.8 Di LD IF Macro Lens. ...
1
vote
1answer
60 views

Does Pentax make a lens adapter to fit Olympus lenses?

I have some Olympus lenses I found at an estate sale, does Pentax make an adaptor to fit these?
2
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1answer
59 views

What is the diameter of my lens? [duplicate]

So recently I bought a used lens - Canon ef 28-80mm f/3.5-5.6 usm with the metal mount but it came with no lens cap and I want to buy one now but I can't see the diameter of the lens on it anywhere ...
3
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2answers
190 views

Whatever happened to dust?

Back in the day, lens cleaning was a front and center concern, with everyone discussing their preferred methods and products. I had a blower brush, tissues, and fluid as part of my kit. But now, ...
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0answers
53 views

Albinar's compatibility with Canon t5

So I have an Albinar ADG 28-80mm lens, that I have acquired, and I was wondering what mount adapter would be required for it to work on either the Canon EOS Rebel T1i or T5, I have both. Thanks!
0
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1answer
130 views

How does the Minolta AF 24 mm f2.8 compare to the Sigma AF 24mm F2.8?

I have an APS-C Sony A77 and I am looking for a 'walk around lens' which is wide enough to take around the city and fast enough for lower light conditions, ideally below 200€ german. With these ...
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0answers
32 views

Canon PowerShot SX160 prevent lens opening due to accidental power on?

Just bought my daughter a SX160 as her first real camera and I neglected to check if there was a way to prevent the lens from opening on an accidental power on. My old PS A710 had a slide button for ...
0
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2answers
668 views

What are the advantages and disdvantages of the Canon 18-55 IS MKII vs IS STM kit lenses?

I'm trying to figure out the difference between the IS MKII lens and the IS STM lens. Specifically, I am looking at the Canon EF-S 18-55mm f/3.5-5.6 lens. On that Amazon page, there are three ...
2
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3answers
330 views

Polariser and ND together

I'm an amateur landscape photographer, have some cheap ND filters but I'd like to take it to the next level and invest into more advanced gear. I was thinking of getting a Lee basic kit which I've ...
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2answers
249 views

Does the lens I just bought have a fungus?

I bought a used Sigma lens on ebay for my back up camera and it was said to be in "mint" condition. I got it today and look it out of the box to look at it and I was horrified to see that the front ...
3
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2answers
227 views

Nikkor 70-200 2.8 VRII - Does Autofocus <5m really work?

some days ago I daring duck had approached while I was taking photos of her and her friends in a pond. I was testing my new 70-200 2.8 VRII and I was a bit worried about the autofocus while working ...
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4answers
278 views

How do I take a “projector output” photo, showing the beam from my car's headlights?

Auto enthusiasts have a thing called a "Projector Output" photo, and its samples are something like this: mostly lights of the cars on a wall at night: And here is a sample shot I did: At full ...
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2answers
8k views

So my iPhone 6 camera lens is as wide as my full frame 35mm DSLR lens?

I am trying to understand what is the deal with "full-frame" and what difference it makes, so did a silly test: I sat at my bed and aligned the iPhone 6 camera with the door of the room and took a ...
37
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9answers
11k views

Do professionals really never use a 24-70 lens?

I was reading lens reviews on the Rockwell site — mostly because it came up as first result in Google search — and he was saying professionals don't need and don't use mid-range zoom lenses like 24-70 ...
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0answers
40 views

what qualities should I be looking for in a long range lens [duplicate]

I am trying to get a long range lens for taking pictures of animals. I have read many questions and realize I need at least a 300 mm and I know they all depend on price...I'm not to go crazy with ...
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1answer
70 views

General guidelines on choosing a lens for an image sensor [closed]

Not sure if this is the right place to ask this question, but here it is: I am trying to get up and running a VGA image sensor: 2755um x 2050um image area with 4.2um x 4.2um pixels and 640x480 ...
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0answers
60 views

Where is the focal point of a camera lens? [duplicate]

If the distance between the center of the lens and the film is called Focal length, does that mean the focal point of the camera lens is located on the film?
2
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4answers
172 views

What should I look for in lenses for long range and close up animal and natural shots?

I am looking at trying to buy a long range lens for shooting animals and nature. I'm kinda new to photography and am not sure which brand or size I should be looking for. What features are important ...
14
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4answers
3k views

Why does a small change in focal length of two lenses make a $1000.00 difference in the price?

I was looking at some lenses and the famous 24-70mm f/2.8G ED AF-S Nikkor Wide Angle Zoom Lens is almost $2000.00. Then, I also found this one: Nikon 28-70mm f/2.8D ED-IF AF-S Zoom Nikkor Lens and ...
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0answers
44 views

Are there any hardshell covers / protectors for lenses?

I'm a concert photographer, and I tend to end up in mosh pits quite a bit. I've mastered the art of shielding my camera from fists and beers, but I have been starting to see some wear and tear. Are ...
2
votes
2answers
433 views

Which lens for a milky way photo

I have a Nikon D7000 and don't know whether my 50mm 1.4 or 17-55m 2.8 lens would be better. I was automatically going to go with the 50mm lens, but then I was reading up on how I can use a longer ...
3
votes
3answers
170 views

What criteria to consider to match cameras and lenses for shooting people at parties?

I normally don't like shooting people that much, because I like to experiment with settings, lenses etc. to get a result that I like, so it helps when the subject doesn't move (Mountains and buildings ...
3
votes
3answers
1k views

What can cause blurry and out of focus images on a Nikon D5300 in no flash mode?

I am using a Nikon D5300 with 18mm-300mm lens. My problem is that the camera is not working properly in "No flash" mode - in all other modes it's working well. Mostly I am using manual settings, but ...
0
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0answers
125 views

Samsung NX1000 focus ring does not work, can't get off manual focus mode either

I bought a used Samsung NX1000 last night, everything is great but it's stuck on Manual Focus mode. The Single Auto-Focus [SAF] and Continuous Auto-Focus [CAF] are greyed out no matter what I try. ...
1
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2answers
74 views

D90 and lenses upgrade [closed]

I have a Nikon D90 and currently use the following lenses: Nikon 70-300mm VR Ed IF Nikon 55-200mm DX AFS Nikon 18-55mm DX Sigma 70-300mm APO Macro My question, is the Nikon 55-200mm unnecessary ...
4
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2answers
541 views

How durable are zoom lenses?

I've heard that zoom lenses after some intensive usage become "sticky" and difficult to operate. What's the aproximate durability for a zoom lens like a Canon EF-S 18-135, shooting ca. 1000 - 2000 ...
2
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0answers
49 views

Lens adaptors for a 30mm ring size wearable camera. with either 4x 8x or 12x fixed power

I have what is called a wearable camera. I am looking to improve and enhance my view as a better live eye look, rather than the distant view all wearable's have in today's market. The camera has a ...
0
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2answers
95 views

Valid value for shutter speed based on Focal Length [duplicate]

I was listening to Ben Long videos and he was saying a safe value for shutter speed is 1/focal length So if I have a 35mm prime 1.8 lens, does that mean 1/35 = 0.02 so in my camera panel do the values ...
5
votes
2answers
190 views

What is the purpose of the little metal cylinder the focus ring of certain FD lenses?

On certain Canon FD-lenses (for example the 50mm f/1.8 S.C.) there is a small metal cylinder sticking out of the focus ring (not the button on the aperture ring). What is the purpose of it?
0
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1answer
110 views

Canon DSLR T5 Lens Compatibility [duplicate]

Can anyone tell me if my Canon EF lenses can be used on a Canon Rebel t5(1200D)
2
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2answers
173 views

Using Rokinon 14mm or Tamaron 17-50mm as a general purpose lens (APS-C)?

I dropped my Sigma 18-250mm in the river and now looking for ways to replace it. I am using T4i, and have, Canon 50mm f/1.8 Canon 75-300 (Garbage w/o IS :/) I use the camera mainly on my trips to ...
2
votes
2answers
304 views

I don't see the hole in the lens getting bigger or smaller, so is it damaged?

Just started learning photography and ordered a 35mm f1.8G ED Nikon lens. I understand it is a prime lens, and doesn't zoom in or out, but the f number there doesn't show any change from 1.8 when I ...
0
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2answers
124 views

Deciding between two lenses [closed]

With my budget and as it is my first lens and DSLR camera ever, I am looking at these two: Nikon 35mm f/1.8G ED AF-S FX NIKKOR Lens and Nikon 24-85mm f/3.5-4.5G ED VR AF-S for my D-610 camera. ...
3
votes
1answer
123 views

Diagnose a damaged lens from focus test results

I have a lens that gives perfectly decent results at f/22 and f/32. Here's its capture of an ISO 12233 test chart: It's not the sharpest lens I own, but whaddaya want, it's a quarter century old ...
2
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3answers
327 views

Will a 18-140 lens be good for basketball stadium photographs? [closed]

I am absolutely new to photography and have just started learning the basics. I have got a Nikon D-610 with a 18-140 lens for now. I just want to know if I can take this to a basketball game and get ...
0
votes
0answers
394 views

What is the impact of changes between the old and new Nikon 18-300mm lens?

They are: Nikon AF-S DX NIKKOR 18-300mm f/3.5-6.3G ED VR Lens (new) Nikon AF-S DX NIKKOR 18-300mm f/3.5-5.6G ED VR Lens (old) As far as I can tell the only differences are: The old one has an ...
0
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2answers
236 views

Why are lens apertures usually 1.4, 1.8, 2.8, 4…? [duplicate]

Why are lens apertures usually of only certain sizes? 1.4, 1.8, 2.8 and so on. Why not 1.6, 2.5 or any other sizes?
3
votes
1answer
192 views

What are these green numbers on my Canonet’s aperture scale?

There are three green numbers on my Canonet QL19’s aperture scale: The numbers are 28, 20, and 14. What are those?