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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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41 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 ...
35
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9answers
5k views

What are the dangers of removing a lens while the camera is on?

The manual warns that you should turn the camera off to remove the lens, but it doesn't say why. I suspect this may have to do with dust, but I could imagine there are lots of other reasons. I'm ...
3
votes
2answers
68 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 ...
35
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7answers
7k 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 ...
0
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4answers
153 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 ...
19
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3answers
3k views

Why do wide angle prime lenses have relatively small apertures?

I've noticed that many of the wide angle prime lenses (at least for Canon) have somewhat smaller apertures than their normal or telephoto counterparts. E.g. the regular Canon 24mm prime is f/2.8 while ...
0
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2answers
200 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 ...
13
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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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4answers
435 views

Which of these lenses should I get for low light conditions?

I'm on a $500 budget and I'm thinking of getting one of these two lenses for low light conditions (e.g. small venue concerts): Sigma 28mm f/1.8 EX DG DF Macro Canon-ef 50mm f/1.4 USM I think I ...
2
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4answers
101 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 ...
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0answers
39 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 ...
1
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1answer
49 views

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

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 ...
26
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10answers
1k views

Are Sigma lenses comparable to Canon lenses for a Canon camera?

I always feel that I should buy a Canon lens for my Canon camera, and Sigma would just be a cheap knock-off. Is that the case?
1
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0answers
58 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?
-1
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0answers
60 views

Which lens for canon 600D for 55-250mm? [closed]

I have recently purchaced a canon 600D and would like to buy a 55-250mm lens... what is best and what is the difference between EF and EF-S? how do I know it will fit and work with my camera? Thanks
2
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2answers
108 views

Is lens geometric distortion, chromatic aberration and light fall off still as much of an issue? [duplicate]

I saw an earlier question (Why prefer the 18-55mm and 55-250mm lenses vs 18-200mm?) that mentioned lower quality lenses have distortion, aberration and light fall off issues. Has software like Adobe ...
2
votes
1answer
175 views

Nikon 16-85 VR focus noise problem?

My 16-85 VR is doing some weird noise during focus, manual or auto. It's like an hiss. I asked in a local shop and they said it can be some microdust inside the lens. But I'm a little worried it can ...
1
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2answers
615 views

How do I take good portraits with a bridge camera and superzoom?

I'm an absolute beginner with regards to photography. I did some research on portrait photography today. From what I learned, a long-telephoto lens (70mm-135mm or more focal length (35mm ...
15
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2answers
7k views

How iPhone 5S can have such a big aperture? f/2.2?

I thought that in order to have a big aperture such as f/2.2 a big amount of light should be able to enter to the sensor and in order to do it, a big lens was needed. How is it possible that in the ...
3
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3answers
4k views

Which is the best version of Helios 44 series 58mm f/2 M42 mount lens

I'm looking to buy a Helios 44 series 58mm f/2 M42 lens for my Nikon D600 and will be mounting it using an M42 to F-mount adapter. I'm primarily buying this lens for portraits due to the interesting ...
2
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2answers
143 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 ...
0
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0answers
39 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 ...
3
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5answers
5k views

Why my “action” shots are blurry even shooting on AF-C, is this a lens or camera limitation?

I'm currently using a Nikon 28-200mm AF-D with my D7000. While trying to take action shots (e.g. my dog running or sports) none of the shots seem to be in focus even on AF-C mode. Would this be a ...
6
votes
3answers
9k views

Nikkor f/1.8G 35mm or 50mm?

I'm new to photography. I got a Nikon D3100 with the 18-55 kit lens. I was looking to buy a f/1.8 prime lens, and I found two options: AF-S DX NIKKOR 35mm f/1.8G AF-S DX NIKKOR 50mm f/1.8G How ...
1
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1answer
66 views

What critereas 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 ...
5
votes
5answers
4k views

Missing focus with Canon 50mm 1.8 lens - is it the lens or me?

I purchased a Canon EOS 650D and EF 50mm f/1.8 II lens. Unfortunately, the auto-focus seems to miss focus at f/1.8. I've tried setting it to single-point auto-focus: it is better, but still not good ...
13
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7answers
9k views

What type of cloth is safe to clean lenses?

Usually, we purchase a camera cleaning kit that comprise a cleaning solution, cleaning brush, cleaning cloth and a air blower. So, I was wondering if we can use other cleaning cloth (such as ...
3
votes
3answers
462 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
52 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
49 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
votes
3answers
147 views

How do I rig up a color filter for my Sigma 8-16mm Ultrawide?

I am a bit confused... I'm not sure if the cokin system will work on my lens, as my lens doesn't have threads for a filter. I've found that placing a Z series cokin filter in front of the lens will ...
3
votes
1answer
164 views

How can I fix a Nikon DX 18-135mm with an aperture stuck open?

I am currently on a trip and I brought an 18-135mm lens and a 35mm prime as my two lenses for the trip. When I took my zoom out of my backpack off the plane and put it on my camera, I immediately ...
1
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2answers
72 views

Nikon D3000 70-300 Nikon lens - How to get lens converter off the lens?

I put a Vivitar tele converter on my 70-300 lens. It went on easy but wont come off. How do I get the thing to come off my lens? I have a Nikon D3000 camera.
123
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3answers
43k views

What do all those cryptic number and letter codes in a lens name mean?

Then looking at a lens name there is a lot of acronyms in the name describing it's features (often specific to the manufacturer). Examples, Nikon: Nikon AF-S DX 16-85mm VR f/3.5-5.6G IF-ED Nikon ...
3
votes
3answers
393 views

What can I do when autofocus suddenly starts blocking at around 2m on a Nikkor AF-S 28-70mm 1:2.8 D?

I had this lens for quite a few years now, it used to work as expected. I didn't use my stuff for a few months, maybe 6-8 months. I just bought a D600 and tried to use them. The AF does not work as it ...
4
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2answers
356 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 ...
1
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0answers
36 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
74 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 ...
2
votes
4answers
2k views

What is the relationship between focal length and shutter speed?

I am very new to photography and am trying to grasp the basics of it these days. Can someone please help me understand the relationship between focal length of a lens and shutter speed of camera?
1
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4answers
697 views

Will the Nikkor 55-300mm/f4.5-5.6 lens work with Nikon D5200?

I need to know if Nikkor 55 mm - 300 mm f/4.5 - 5.6 Super Telephoto Zoom Lens will work with my Nikon D5200 camera. Thanks.
5
votes
2answers
164 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?
3
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3answers
248 views

How to clean shattered UV filter glass from Lens?

I have a camera lens where the UV filter shattered when it was in my camera bag. I was able to remove the filter, but there's bits of glass on the lens. I currently just put the lens cap back on and ...
2
votes
2answers
98 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 ...
0
votes
1answer
39 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
votes
2answers
287 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 ...
4
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0answers
135 views

Does Lightroom take sensor size into account when applying lens correction profiles?

I have a question about using the lightroom lens correction profiles for cameras other than full frame. I have been using a Tamron 24-70 which is known for having slight vignetting (full frame only) ...
0
votes
2answers
119 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
0answers
70 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 ...
0
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1answer
2k views

How is the quality of the Sigma 18-300 DC Macro lens?

I'm considering the less expensive Sigma 18-300 DC Macro lens vs. the (way) more expensive Nikkor 18-300. Would I be losing the gains by buying a 24 MP Nikon 3200 if I went with the Sigma?
7
votes
7answers
650 views

Looking for a new zoom lens for a DX frame Nikon, should I get Nikon 18-200mm or something else?

(I thought this question would already have been asked/answered here, but if it is I can't find it.) I'll soon be doing some handheld indoor/low-light photography, so I want a VR lens to help with ...