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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
258 views

Can you take a picture of a milky way on a canon EOS 300?

I really want to take a picture of the Milky Way using my camera. I'm not sure if it is able to pick it up? The lens I am currently using is a Canon EF 55-200mm. Should I be able to this?
4
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4answers
3k 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 ...
0
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1answer
81 views

Which of these lenses will work?

Which of the following lenses will work best for macro with ole m0doel Olympus E-1 camera mentioned here www.keh.com - OLYMPUS 28MM F/3.5 {49} OLYMPUS - 28 F3.5 (49) www.keh.com - OLYMPUS 50MM ...
1
vote
1answer
776 views

Is Canon 16-35/4 IS better than 16-35/2.8 II at f/4?

I have had a 16-35/2.8 II for almost a year, but it broke and I might be in the market to replace it. Last week I saw that Canon had released a new lens in this range, but with f/4 and IS. Is Canon ...
10
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4answers
7k views

What is the difference between a telephoto lens and a zoom lens?

Looking at the product page for Nikon lenses, I notice a distinction between telephoto lens and zoom lens. What is the difference between the two? Why would I want one over the other? I wiki'd ...
2
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3answers
171 views

Variable focal length for macro lenses?

True macro lenses come in fixed focal length. Are there any macro lensens which have variable focal lengths? And please explain why yes or why not?
2
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4answers
12k 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
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2answers
139 views

Is a Canon 50mm 1.4 lens only meant to focus close range?

Ok, so I currently shoot with a canon Rebel which of course has a 1.6x crop factor. My primary lens is Canon's mid-level 50mm f/1.4. I love this lens for close up portraits and can get a very sharp ...
0
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1answer
59 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
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1answer
311 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, ...
28
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12answers
7k 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 ...
3
votes
2answers
999 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 ...
3
votes
2answers
94 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 ...
8
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3answers
6k 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 ...
1
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1answer
49 views

Compability of Kenko DGX PR0300 2.0X C-AF F4.5 for Canon and a Canon 55-250mm lens

Can the Kenko DGX PR0300 2.0X C-AF F/4.5 Lens for Canon (Black) be used with a Canon 55-250mm lens?
31
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7answers
11k views

What can a fisheye lens be useful for?

I have a variety of lenses in my camera kit. One that I do not have, and has me curious, is a fisheye lens. I mostly understand what it does: it captures an image with distortion similar to what you ...
26
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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
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2answers
399 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 ...
1
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2answers
107 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
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2answers
207 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 ...
2
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2answers
334 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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3answers
573 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 ...
29
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5answers
73k views

How do I convert lens focal length (mm) to x-times optical zoom?

What is the rule to convert the 'mm' notation to the 'optical zoom' notation? I searched a bit and found this one: optical zoom = maximum focal length / minimum focal length For example a 18-55mm ...
5
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4answers
811 views

What insurance options are available for rental lenses?

I am thinking about renting a couple for expensive lenses ($900+) from Adorama. I'll be visiting NYC from Chicago. They state on their rental page. We do not provide Insurance. We strongly ...
1
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2answers
145 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
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1answer
99 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 ...
22
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2answers
2k views

What characteristics make a lens good or bad?

When reading lens reviews on the Internet, I often find subjective statements about the image quality that a lens produces, such as "good contrast" or "sharp". The problem is that I don't think I am ...
0
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2answers
164 views

Does a Canon STM lens autofocus more quickly and accurately on a high-end camera body?

There are incredible reviews on the new Canon STM lenses: https://www.youtube.com/watch?v=ho0hOhRSuHk Does autofocus perform better on a 7D body, compared to an entry-level 700D body, for example? ...
3
votes
4answers
8k views

Can I use old Minolta AF lenses on my new Canon?

I just recently bought my first DSLR, a Canon Rebel t2i/550d. I use it mostly for video and it works wonderfully. I bought the kit lens with it, but I am looking to expand my lens collection. I found ...
11
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7answers
998 views

Lens upgrade paths (sub $1000) for the EF-S 18-55mm IS kit lens for Canon APS-C cameras

This is somewhat a follow-up to my earlier question on the limitations of the kit lens. I have browsed through quite a lot of sites including this one for user opinions & reviews of different ...
1
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3answers
306 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
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3answers
179 views

How should one compare lenses for new mirror less cameras vs established best of class?

As someone recently new to photography, I am curious for those jumping on the mirrorless bandwagon what concrete things (especially re: quality) are sacrificed moving to these cameras. Take for ...
0
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1answer
53 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
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2answers
95 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
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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
79 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
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3answers
152 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
87 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 ...
0
votes
3answers
229 views

35mm vs 40mm: Does it matter?

I want to buy the lens Voigtlander Nokton 40mm F1.4, $449 Voigtlander Nokton 35mm F1.4, $629 I am asking, why the slightly difference in focal length, the price difference in so much as $180? ...
0
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3answers
127 views

Upgrading from Canon T2i to Canon 6D

I want to upgrade my camera from Canon t2i to Canon 6D, Can I use the same lenses i already have ??? Lenses I own are, Canon 58mm Canon 75-300mm f/4.0-5.6 III AF Canon-EF 50mm f/1.8 II Rokinon ...
9
votes
2answers
4k 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
3answers
136 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
1answer
80 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 ...
13
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3answers
2k 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 ...
13
votes
4answers
7k 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?

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 ...
1
vote
3answers
1k views

What can cause black corners in an image?

There are completely black corners in some of my photos. What can cause it? I have a full-frame Canon 5D Mk II and had the problem with my 24-105 Canon lens recently and have experienced it with my ...
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votes
2answers
52 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
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0answers
51 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
3k 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 ...