Spring 2012

Spring 2012
by ani

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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.

learn more… | top users | synonyms (1)

3
votes
4answers
58k views

What should I do when my Nikon AF-S lens won't auto focus?

I have a Nikon 35mm f/1.8G AF-S DX I bought for my Nikon D5100, it's only a couple months old, never been dropped or anything, and it all of a sudden won't auto focus. Anyone know if this is a simple ...
0
votes
1answer
77 views

Why does the angle of view narrow as you zoom in? [duplicate]

Why does a 4mm lens have a wider angle of view than an 8mm lens ?
3
votes
1answer
528 views

Cannot light a fire using a lens? [closed]

A few days ago, on a sunny day, I found myself hiking in the woods and wanting to help fellow picknickers to light a fire with no matches or lighter. However, I had my 17-55 f2.8 Nikon on my camera, ...
32
votes
12answers
14k views

Should I buy a camera with kit lens, or body plus lens separately?

I am planning to buy a DSLR soon. Before I zero in on the model, I want to know whether it is advisable to buy a kit (body + 18-55 lens) or not? OR should I go for the camera-body and the lens ...
4
votes
2answers
2k views

What causes longitudinal chromatic aberration on Nikon 50mm f/1.4D?

I have looked on my new 50mm lens photo (I have Nikon D90) and I see "purple fringing" around the unfocused objects (longitudinal chromatic aberration). What's is going on? Is it common for this lens (...
4
votes
2answers
316 views

Fixing chromatic aberration automatically with software

I am trying to fix chromatic aberration in images taken with wide lens industrial cameras. Searching the internet I didn't find a good software to do so. I tried Hugin and a few others, but without ...
11
votes
3answers
24k 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 ...
30
votes
6answers
2k views

What is the definition of a “prime lens”?

There are many discussions of differences between prime, zoom and macro lenses. I have not heard about prime lenses until recently. Could someone explain what exactly a prime lens is? Is it ...
4
votes
2answers
485 views

Should I leave the lens switched to AF or MF for storage?

When I'm not using the camera, or when the lenses are packed at home, should the lens switch be at AF or MF? Or does it make no difference? And by the way, is it better to leave the lens on the ...
2
votes
2answers
421 views

How to focus manually with a Nikkor AF-S DX VR 50-200mm f/4-5.6G zoom lens?

I have a Nikon D3100, for which I just bought a Nikkor AF-S DX VR 50-200mm f/4-5.6G zoom lens. This is a CPU lens and works very nicely in auto-mode, i.e. when you let the camera set the focus. ...
4
votes
2answers
776 views

Will the Rokinon 8mm f3.5 Fisheye work with a Canon camera?

I want to buy the Rokinon 8mm f3.5 Fisheye lens, but I saw in one review that is not recognisable for Canon because there is no a chip which is necessary. What is that exactly? Will I have problems ...
0
votes
3answers
2k views

Why is the view darker through the viewfinder than Live View on a Canon EOS 600D/Rebel T3i with 75-300mm lens?

I have two lenses, the regular one and the 300mm lens. When I put the 300mm lens and try to take a picture through the viewfinder, the view is darker than usual and it won't take the picture. When I ...
1
vote
2answers
3k views

Can I put different lenses with a lens adapter on a point and shoot?

I have the Nikon L830 advanced point and shoot camera. It's not a DSLR. Can I put a different lens with a lens adapter on my camera? I want to do that to have more control on the focus and the depth ...
2
votes
1answer
150 views

Moon photography [duplicate]

Hi I am a photography hoobyist. At the moment I am using a Nikon D3100 with the standard kit lens (18-55mm). I am interested in taking photos of the moon. I am debating whether to buy a 55-200mm lens ...
1
vote
3answers
353 views

Which Nikon lens do I have?

Trying to sell a lens, and a dealer that buys used photo items and used KEH to give quotes is unable to decide what lens I have. Here's a link to a lens that as far as I'm able to tell looks exactly ...
0
votes
1answer
208 views

Why is the external lens for my smartphone blurry when not at full zoom?

I've just bought an optical zoom lens for my Samsung S4 (I'm a web developer and blogger so I thought that it would be a handy tool for taking photo's when out and about without my main camera). The ...
0
votes
2answers
546 views

Are there disadvantages to an adapted Canon EF-S zoom vs Sony SEL 18-200 lens for my Sony Nex?

I want to buy a universal zoom lens 18-200 (maybe 18-135) for my Sony Nex. At Sony I found only Sony SEL 18200 lens that is expensive. There are adapters Canon EF-S to Sony E-mount (with providing ...
1
vote
0answers
52 views

How to take pictures of plankton? [duplicate]

I've been wondering how people take pictures of plankton. I have no idea what kind of lens, setup and adaptors are needed to take shots of plankton? I guess you need a microscope of sorts but after ...
3
votes
1answer
256 views

Do lenses have focal planes or focal spheres/ellipsoids?

The title says it pretty much all. I'm asking this because I find myself always using the focus point in the center, and after I focused, I rotate my camera to make the framing right. However, if ...
0
votes
3answers
304 views

Should I upgrade my Canon body or lens for upcoming travel?

Having trouble deciding what to do. I am about to go on my honeymoon to Borneo, with lots of jungle tours, and wildlife spotting. I have a Canon XS with a kit 18-55 and a 75-300 non IS. I don't use ...
0
votes
1answer
398 views

Purchasing a6000: but what lens to buy? [closed]

I'm not a professional by any means but I currently own a Rebel t3 but looking to get a good camera that's much smaller as we often times leave the Rebel behind since it is so large. I think I've ...
11
votes
2answers
6k views

How can a Frazier lens achieve that massive DOF?

I've read in PetaPixel about this "Frazier lens" that can achieve a massive DOF. In this video is shown the capabilities of this lens and I must say I'm very impressed. How can this lens achieve such ...
2
votes
1answer
399 views

Tamron 90mm SP Macro manual focus locks

I've been shooting film on a Canon AE-1 Program with a Tamron 90mm Macro SP lens. Until recently, the lens worked perfectly, but all of a sudden it won't focus farther than 10ft. To my knowledge it ...
14
votes
3answers
4k views

Why is 1:1 desirable for a macro lens?

Why is 1:1 desirable for a macro lens? I know it means that you can print a picture of something and it will be the same size on paper as it is in real life, but why is this such a desirable feature ...
15
votes
4answers
18k views

What is a 200mm lens good for?

I just found that there is a 200mm lens at my school. It is a Canon with Image Stabiliser (with red detail). It is old, at least 10 years. It has been great playing around with it, but I really don't ...
11
votes
4answers
2k views

Is it better to upgrade Canon 18-55mm IS kit lens to the 18-200mm, or complement with 55-250mm? [duplicate]

I currently have the Canon EOS 550D with the 18-55mm IS kit lens. I am primarily looking for greater telephoto reach, as I have found the 55mm length to be quite limiting at times. So, I was ...
-5
votes
2answers
61 views

How to use TC's with Canon lenses [closed]

If I shoot a Canon 70-200 f/2.8 which extender should I use to double my focal length?
1
vote
0answers
55 views

Lenses for India trip on a Canon 7D [duplicate]

I plan to take my Canon 7D to India and I currently have a 12-24 Tokina and the Canon 50 1.4. Is this a good kit for India? I will be photographing anything I can really - I do not mind taking ...
7
votes
8answers
5k views

Software to auto correct lens distortion based on photo

A photo contains digital information about the make of the camera the focal length,etc. Does any software use this information and auto correct the lens distortion in the photo. I know that Photoshop ...
1
vote
2answers
361 views

How can I increase the amount of 'keepers' from my Nikkor 50mm 1.8D

I have been using this lens for a while, mostly for portraits and have noticed that for some reason the outdoor pictures where I most likely had to quickly compose and take the shot have had something ...
0
votes
2answers
4k views

Will dust inside a lens affect the image in any way?

I have been looking at purchasing a used lens and in the listed it says something along the lines of "There is dust visible throughout the lens, but this will not affect the images in any way" Is ...
3
votes
3answers
763 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 ...
0
votes
3answers
95 views

Travel Lens to UK [duplicate]

My family and I are planning to visit UK in October. My agenda is; 1. Visit old architecture of Bath 2. Strafford upon Avon 3. Lake District 4. Pitlochry 5. London I will travel with Nikon D7100 and ...
2
votes
2answers
4k views

What are the differences between Tokina 11-16 mm f/2.8 DX and DX-II (Nikon mount)?

I am comparing two versions of Tokina 11-16 mm lenses for Nikon mount: AT-X 116 PRO DX vs. AT-X 116 PRO DX II As far as I can tell from producer's website, one difference is internal focus ...
3
votes
3answers
1k views

How do I choose a zoom lens for my Canon DSLR when I'm ready to move beyond the kit lens?

I am using Canon 500D with the kit lens (18-55). I think I have done enough with 18-55 and want to try out next lens. I have already decided to purchase 50mm prime. I also wanted to get a Zoom lens. ...
1
vote
4answers
471 views

Having difficulty with choosing a wide-angle lens for Canon

I have got Canon 450D Kit and I would like to purchase a new Canon lens. Not too pricey. Main purposes are to shoot landscapes and portraits at the same time to have decent zoom. I had a look at EF ...
1
vote
3answers
2k views

What Lens would i use to photograph a football game? [closed]

I have an assignment and one of the questions is asking what lens would I use at a football game. I have a press pass so it allows me to the field. They would like high contact physical frozen shots. ...
-3
votes
1answer
128 views

Holiday lens - 18-200 or 18-250 [closed]

I'm off on holiday soon and I want to get an all-around lens which I'm sure is one of the most read topics on the internet. I have a Canon 450D and I've been looking at the Canon or Sigma lens as they ...
5
votes
2answers
893 views

What are the theoretical minimum and maximum apertures?

Is there such a thing as a maximum aperture that a lens can be open to? What about a minimum aperture that it can be closed to? Do these concepts even make any sense? Is there a lens with the ...
6
votes
4answers
3k views

Will the Canon EF 50mm f/1.4 give better auto-focus results than the 50mm f/1.8?

I'm currently shooting with a Canon EF 1.8 50mm. I like this lens — it's pretty sharp and the shallow depth-of-field at F1.8 is great. But I always face a problem using auto-focus: almost every shot ...
0
votes
2answers
2k views

Canon 18-135mm macro capability vs 100mm macro lens

I have a Canon 550d, and intend to take insect/flower closeup/macro shots. But I am not sure what the difference is between the Canon 18-135 lens vs a Canon 100mm Macro lens in terms of their macro ...
4
votes
9answers
10k views

Do I need a filter for my prime lens in order to protect it from dust, splashes, etc?

From here: http://photo.stackexchange.com/a/569/5205 UV Filters: Many photographers feel that it is worthwhile to put a UV filter on the front of every lens, on the basis that this will protect ...
10
votes
1answer
465 views

How do lenses vary in contrast?

I was reading a review of a wide-angle lens, and the review opined that the lens had impaired contrast wide open. Optically, what's happening here? How does the light passing through the lens lose ...
4
votes
7answers
2k views

What prime lens for taking portraits of my child with a Canon APS-C DSLR?

I purchased a Canon T4i with a 18-135mm STM lens. I'm interested in getting a prime lens to take portrait photos of my child. My budget is up to $500.
4
votes
3answers
3k views

How to loosen a Canon 75-300 lens (zoom ring is quite stiff to turn)

My new Canon EF 75-300mm telephoto lens and the zoom ring is quite stiff. Is the lens faulty or is there a way to loosen it up?
1
vote
3answers
328 views

Will a Nikon lens work on a Sony compact camera?

I got a Sony camera for Christmas. Lately, I've been looking at getting a fisheye lens. I really want to buy one sooner or later. The problem is the price. I found a fair price on a fisheye lens ...
0
votes
1answer
171 views

Aperture and field of view - percepted by eye vs camera

I very well informed and I know about how aperture works and why is it not restricting field of view, but I somehow cannot get around the following: Aperture doesn't restrict field of view for the ...
0
votes
2answers
179 views

How to shoot photo with the sun fully surrounding foreground subject

I saw this artwork for Daft Punk's "Get Lucky" song and it begged the question "How was that shot?" My guess is an extreme telephoto lens allowing the sun and the band to be visually compressed ...
20
votes
12answers
2k views

What's the best way to create a tilt-shift photograph?

Specifically, what's the best way to go about shooting photos that have a fake miniature quality to them, which produces high-quality (and believable) images? Is there some special lens that you can ...
4
votes
4answers
328 views

Is there an index of all Micro Four-Thirds lenses?

I am looking for lens options for a new M4/3 camera I just bought. I'm particularly interested in landscape lenses. However when searching for lenses I can't find one place that has a complete index ...