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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)

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2answers
135 views

Is it stupid to purchase AF Nikkor 50mm f/1.8D over AF-S NIKKOR 50mm f/1.8G to save a few bucks? [duplicate]

I own a Nikon D5300 body, but wish to upgrade to a Pro FX body in future (not any time soon). Between AF Nikkor 50mm f/1.8D and AF-S NIKKOR 50MM F/1.8G, I prefer to buy the former, but at the same ...
2
votes
1answer
61 views

Tamron 24-70mm Vi USD partial dismantling

I am aware of the relative wisdom of pulling lenses apart. Specific warnings based on knowledge of this lens or closely related ones are welcome. Generic ones are unlikely to be helpful. I have a **...
0
votes
1answer
105 views

Can Sigma lenses be converted from EF-S to EF for Canon?

Does Sigma's Mount Conversion work for DC lenses to DG Lens Mount Conversion? Will my Sigma 17-70mm f2.8-f4 OS work with Full Frame Camera 6D after conversion?
5
votes
5answers
15k 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 ...
2
votes
1answer
94 views

Does it actually matter considering DxOMark's Perceived MPix Score for lenses?

The score of Tamron 70-200 f2.8 Di VC is higher than Canon 70-200mm f4L IS on an APS-C Canon Camera like the 550D. Does this make the lens better than an L Lens in terms of image quality? Autofocus? ...
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2answers
69 views

Can I use Yashica 35-70 and Canon 28-80 lenses on DSLR cameras? [duplicate]

I have two camera lenses; one is a Yashica 35-70 mm lens which I am using on a Yashica FX-7 Super manual 35mm film camera. The other is a Canon 28-80 mm lens which came with the Canon EOS 66 35mm film ...
1
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1answer
355 views

Pictures start in focus then go out of focus?

I was recently shooting some surf after a session with my 7d and Tamron 18-270MM F/3.5-6.3 Di II VC PZD. I started shooting while he was in focus, then as he got to the main part of the maneuver the ...
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1answer
142 views

“Lens not attached” error with new Sigma 150-500 zoom lens on Nikon D3300

I received my sigma 150-500mm F/5-6.3 zoom lens. I connected my lens to my Nikon D3300 which is compatible. When I take a picture the picture is black. I think it's because the shutter is closed. I ...
4
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3answers
551 views

Why did manufacturers stop including DOF scales on lenses?

Seriously why? I hate it and I hate memorizing it or check my phone app for the depth of field of the current aperture. I find it so useful in old lenses. The DOP preview doesn't help that much (IMO) ...
0
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3answers
142 views

What are the best non-m4/3 lenses for Micro 4/3 cameras? [closed]

I'm looking into purchasing some fast primes for my Olympus E-M5 Mark II. But rather than stick to modern lenses, I'm looking into adapting those from the film era or early digital years. I'm looking ...
1
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2answers
592 views

Help me understand effective f-number

If I set a lens to, say, f/2 but my focus is set to its closest point, my effective f-number won't be f/2 any more but it will be higher by a factor that depends on focal length, image magnification ...
4
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1answer
306 views

Can you use a Krasnogorsk lens (from the 16mm movie camera) on a Sony NEX camera?

I would love to try and adapt the lens from my 16mm camera Krasnagorsk onto my Sony NEX bodies (3 or 5). The lens I am referring to can be seen on this picture, it is a f 1.9 Zoom Lens: I found ...
0
votes
2answers
109 views

What F means in lenses and how to find focus distance [duplicate]

I've found some camera sensors with very low resolution to use with electronics. Camera have 150x150px and can mount different lenses type: F2.7, F4.0, F6.0. I want to ask what F means and if I can ...
4
votes
2answers
186 views

How can I avoid fuzzy photos at 300mm zoom?

I'm so disappointed in my new 70-300mm lens (AF-S Nikkor ED lens.) I use auto-focus because I'm such an amateur. Is it my camera, (D40x) or the lens? It's probably me, but is there a trick to ...
2
votes
2answers
103 views

Can I use the same lens for landscape and star photography?

My wife loves landscape photography and I love capturing the stars. We are both amateurs and we have been using our stock Canon EOS 750D lens (18-55mm) so far with 'ok' results (both kit and user-...
1
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4answers
715 views

What low-cost non-fisheye wide angle lenses are available for Canon and how do they compare?

I'm currently looking for a wide angle lens for my Canon T3i. I would prefer a prime lens. I want to use a wide angle lens primarily for video (so the lens needs a quiet AF motor) but for still ...
1
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3answers
88 views

What happens if i block the centre of the rear element

For example here is a rear element with a filled in circle in the middle. What happens to the picture? Is there image quality degradation? Do I lose part of the picture? What about amount off light ...
1
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2answers
77 views

When stopped down, does light still pass through all of a glass element behind the aperture blades

When you stop down and look through the lens, the iris (circle of light) gets smaller. Does this mean that light only passes through the middle of each lens element behind the aperture blades? What ...
2
votes
3answers
826 views

Can dirt on a camera's lens cause graininess, without causing large-scale blurring of the picture as a whole?

I have a simple point-and-shoot camera that takes satisfactory pictures when the picture is filling the computer screen. The pictures are shot with auto ISO and full daylight. But when I look at the ...
2
votes
1answer
81 views

What is the difference between the 18-55mm Nikon kit lens and the Nikon Nikkor Lens ‑ 35 mm ‑ F/1.8 ‑ Nikon F? [duplicate]

What advantages will a 35mm lens will give me if I already owe an 18-55mm. Isn't the 35mm somewhat included in the other one? It may be a silly question, but I am new in photography and trying to ...
5
votes
3answers
2k views

Do Nikon AF-S lenses perform better than AF lenses?

I am going to be getting a Nikon D7000 soon. I think I'm correct in assuming that the Nikon D7000 will use its own focus motor for an AF lens, but allow the lens to use its motor for an AF-S lens. I'...
11
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3answers
604 views

Different colors of light are disrupting my focus. What lens feature minimizes this?

I took this photo with a Canon 50mm compact macro lens & Canon "life size converter", and it looked somewhat fuzzy. After separating out the RGB channels, it seems evident that the different ...
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2answers
107 views

Will a DX lens have severe vignetting on a 20x20mm?

I'm going to work with a camera, a Photron AX100, which has a non-standard 20.48x20.48 mm sensor, but has an f-mount bayonet for lenses. I was wondering if it would work with DX lenses without ...
2
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2answers
128 views

Circular polarizing filter - slim or regular? [duplicate]

I have a Canon EOS 550D. Right now I only have some standard lenses, and I'm looking to buy a Tokina AT-X 116 Pro DX II 11-16mm F/2.8. (I love landscape photography and photography in nature in ...
7
votes
4answers
1k views

Why is my large format lens so much smaller (in length) than my 35mm-format lens?

In general I have found that as the focal length of 35mm (or APS-C) lenses increases, the physical length of the lens increases as well. However, my large format lens is much thinner than other 35mm ...
13
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3answers
1k views

Distortion/quality when using a full frame lens on a crop sensor camera

I am looking for a sharp, affordable wide-angle prime for my Nikon D7000, primarily for landscape shots. I am really interested in the Samyang (aka Rokinon, Bower) 14mm f/2.8 lens due to its ...
1
vote
7answers
222 views

Buying a Nikon DSLR Camera body only, is a 35mm and 55-200mm lens enough for most cases?

New to photography using DSLR. I am planning to buying an entry level Nikon DSLR (perhaps the D3300). I read around and decided to buy the body only, excluding the kit lens. I have decided to go ...
0
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0answers
24 views

Anyone knowledgable about lens kits for smartphones? In particular Nexus 6P? [duplicate]

I hope to find some help or info here. I am doing a photography course and I intend to buy a lens kit for my smartphone. I found some kits on the internet (Amazon), but I am lost when it comes to ...
8
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3answers
633 views

Is the lack of image stabilisation on lens a major drawback for photo shooting the moon?

I have found these lens Nikon AF 70-300mm f/4-5.6G in a very good price. I am planning to use them mainly to take pictures of the moon. I am aware that this lens does not have image stabilisation. Is ...
29
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10answers
72k views

Why does fungus form in lenses, and how to get rid of it?

Recently I was using an old Pentax 50mm f/2 that had a quite big green spot, and later I was informed that it was a fungus. A couple of questions raised from this: Why does fungus form inside the ...
2
votes
2answers
164 views

Are focus and noise problems I see with my Nikon D80 simply because newer cameras are better?

I can't seem to get photos with good focus or without noise. Is it the fault of the Nikon D80?I have read that cameras only two or three years old have much better light sensors and that that is what ...
10
votes
6answers
2k views

What are the pros and cons of non-extending zoom lenses?

Apart from the obvious benefit of not changing the center of gravity, what are the technical pros and cons of zoom lenses that do not change "physical length" when changing the focal length? For ...
16
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11answers
22k views

What's wrong with the Canon EF-S 15-85mm?

Maybe this question should be on meta. I've just come across the Canon EF-S 15-85mm. It's been available since 2009. I'm just wondering why it has never been mentioned on photo_se_com or any of the ...
19
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7answers
4k views

Can a smaller sensor's “crop factor” be used to calculate the exact increase in depth of field?

If APS-C and similar crop-sensor digital cameras have a focal length multiplying effect such that a 50mm lens has an apparent focal length closer to the field of view of an 80mm on a full frame camera,...
4
votes
3answers
171 views

Mercury transit at 200mm + UV + ND?

Will I able to see Mercury transit with a f/4-5.6 200mm lens (on APS-C)? I do not have solar filter and I don't have time to buy as transit will be on 9th May 2016. I'm wondering if I can use my UV ...
1
vote
2answers
163 views

How can I modify my NIkon D5500 so I can make a vintage lens auto focus?

I just bought a Nikon D5500 with 35mm f1.8. I also have a Nikkor 70-210mm AF (that doesn't focus automatically). I learned that using a TC-16A AF Teleconverter 1.6X might help but i was informed that ...
20
votes
4answers
3k views

Why buy prime super telephoto lenses instead of zoom super telephoto lenses?

35mm and 50mm primes make perfect sense to me: sharper images, simple operation, and framing can usually be handled by taking a few steps forwards and backwards. I'm struggling to see how one would ...
0
votes
3answers
112 views

Canon 7d & 24-70 ii - can't get a crisp or well exposed shot [duplicate]

As the title says, I'm shooting a canon 7d (mi) with the newly acquired Canon L 24-70 ii. I can't tell if I've suddenly forgotten how to shoot, or if both Green and Av mode are messing with me. I've ...
1
vote
3answers
95 views

Options for a wide angle lens for Nikon D5000? [duplicate]

I'm not sure if all Nikon lenses have identical connectors across all models (amateur here), so I'm sorry if it's a silly question. I have a D5000 and I'm looking to do more night time photography ...
2
votes
2answers
405 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
68 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 ...
24
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8answers
15k views

Why there is no Canon 50mm *IS* lens?

Canon's 50mm prime lenses are all non-IS (Image Stabilization) for some reason. Considering the popularity of these range primes, shouldn't Canon be interested in shipping a new, optically improved IS ...
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votes
2answers
117 views

Is there anything I should be aware of if I'm considering the Nikon AF 70-300mm F4-5.6 ED D lens?

I recently bought the Nikon D5300 and currently have the 18-55mm kit lens. I am worried that with this lens I won't be able to take a variety of good photographs--not only landscapes. So I have been ...
1
vote
2answers
200 views

Can I remove the lens on a Minolta Hi Matic 9 to add a zoom lens?

I have a Minolta Hi Matic 9, made in 1956. Can the lens be removed in order to utilize a zoom lens.If so, which manufacturers would be possible choices?
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votes
1answer
35 views

Vivitar 3000S Fully manual SLR [closed]

What's the general consensus regarding quality for this initially-about-$280 camera? Can I get one almost never used for $25? Primary use will be short medium and long range wildlife shots.
8
votes
8answers
7k views

How water-resistant are Nikon's weather sealed lenses?

I'm thinking about buying a Nikon D7000 and I have found out that it's weather sealed (sealed to shoot in rain). So my questions are: Does it really work in heavy rain or is it only for a few water ...
1
vote
3answers
166 views

What does it mean when 'HD' is printed on a lens? [duplicate]

Do the two letters mean High Definition? Are they called HD lenses? How do they differ from normal (SD?) lenses? Please include a plenty of details in your answer..
2
votes
3answers
141 views

Best lens to photograph a large flat object

I need to accurately photograph mood boards. These are large (4x8 feet, 120x240 cm in my case) white or black boards with photographs, material swatches, pantone swatches pinned to them. The goal is ...
0
votes
1answer
89 views

Affordable lenses for nightscape photography (nikon d5300)? [duplicate]

I just bought my first DSLR camera Nikon D5300 and currently I only have the kit lenses. I am looking to get some new ones soon to use them to take pictures of the moon and maybe even the stars. As ...
2
votes
3answers
1k views

Which filters will fit Voigtlander 15mm?

I recently got myself Voigtlander Super Wide-Heliar 15mm/4.5 lens, which I enjoy shooting a lot. It has built-in lens hood with filter threads and manual says it's fitted with 52mm filter threads. I ...