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by Vian Esterhuizen

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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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8 views

Nikon ED AF 80-200 2.8 LENS not reading on camera [duplicate]

I have a Nikon d7100 and I just bought a Nikon ED AF 80-200 2.8 LENS. The camera will display a FEE error message on camera when I put the dial ring on the lens to the 2.8 aperture. It says on camera ...
10
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3answers
251 views

Why are superzoom lenses small but giant telephoto lenses huge?

This week I've read two news stories about two different camera lenses that can magnify things that are very far away. The first is the Nikon Coolpix P900, which is a point-and-shoot camera that ...
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1answer
87 views

What insane technique is this and how do i achieve it

What is the technique of this picture? or how is this achieved. i know that it can be achieved in a digital darkroom but how can i replicate the effect straight out of the camera??
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3answers
529 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 ...
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2answers
43 views

Can I use a D.O. Industries Navitron 50mm f0.95 lens on a Nikon Camera?

I have a D.O. Industries Navitron 50mm f0.95 and would like to use it on a nikon camera. Is there a mount that can adapt this lens to nikon cameras?
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0answers
12 views

Are there any good resources that provides information about the focus breathing of various lenses?

Sites like DxOMark provides a lot of information about lenses but they generally don't provide any really usable information about the focus breathing protperties of the lenses. In fact I don't know a ...
2
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6answers
203 views

Should lenses of equal quality for smaller sensors be cheaper?

In theory do we expect lenses of identical specs and quality to be cheaper when designed for smaller sensors? My expectation is that the answer is yes, because all of the things that lenses struggle ...
137
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3answers
59k 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 ...
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0answers
13 views

Is there any risk in removing shims from my Nikon macro lens to make the focus ring easier to turn?

The focus ring/barrel on my Nikon 105mm f2.8 micro lens is extremely tight and difficult to turn. There appear to be several shims between the lens barrel and the focus ring. Is this normal? Any ...
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1answer
200 views

Which lenses can I use with adapters on my Sony A-mount body and what are the disadvantages of such adapters?

I own a Sony A77 APS-C SLT A-mount camera. For someone who likes to experiment and is on a budget, mount adapters are tempting, since they greatly expand the catalog of available lenses and open up ...
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1answer
45 views

What gear for environmental/lifestyle portraits for website

I'm looking for gear recommendations to shoot environmental/lifestyle portraits for promotional/travel photography purposes on a 2 week trip to the wilderness. For most of the time I will be ...
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1answer
23 views

Canon 700d with stock lens or cheaper model with better lens? [duplicate]

I'm torn between getting a 700d kit as it is or a cheaper model (ie. 1200d) with a better lens. Mainly plan on using it for short films. Opinions?
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3answers
89 views

Canon 50mm Macro verus 100mm Macro Lens

I'm considering purchasing either the Canon 50mm Macro or the 100mm Macro with IS. From what I've researched the only real difference is how close you have to be to your object to take the pictures. ...
0
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1answer
28 views

How do I set a lens profile for post-processing distortion correction with an inverted lens?

Recently I started having fun with macro and micro photography by inverting a lens I have (24-85mm) and by combining 2 lenses togheter (70-200mm + inverted 28mm). The results are good (I shoot in ...
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1answer
72 views

Why don't all zoom lenses have variable f-numbers? [duplicate]

As I understand it, the f-number is a ratio between the focal length and the aperture diameter. A zoom lens can change focal length, but shouldn't the maximum aperture be a fixed size? If so, that ...
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0answers
30 views

Nikkor AF-S DX VR 18-200mm focus stops at 0.9m, can't set it to 0.5m

I have a Nikkor AF-S DX VR 18-200mm and I have a problem with the focus ring. It goes fine from infinity to about 0.9m,then it just stops there and I can't go down to 0.5m no matter how much I turn ...
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3answers
4k 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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3answers
528 views

What is the limiting factor in lens construction when it comes to f-stop values?

This widely praised Nikon 105mm macro lens has a maximum f-stop value of 2.8. I've held it in my hands, it's a big lens. Meanwhile, this 50mm Nikon lens can go up to f/1.2, despite being 25% cheaper ...
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4answers
3k views

What are the advantages of a lens having a fixed maximum aperture?

What are the advantages of a lens having a Fixed Maximum Aperture? Previous answers have indicated that "pros tend to want constant apertures in zoom lenses". While in general lenses with a fixed ...
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0answers
15 views

Nikon D5300 Vs Nikon D3300 and additional lenses (beginner) [duplicate]

I am going to buy my first "serious" camera. The brand I have zeroed upon is Nikon. Particularly, I am interested in D5300 and D3300 with a price difference of 150 USD. I have heard that lenses matter ...
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3answers
522 views

Should a Nikon 18-55 lens zoom automatically?

I have purchased a Nikon D5000 camera with 18-55 from eBay. The lens focuses automatically, but should the lens also zoom automatically or is this controlled manually by the zoom ring.
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1answer
757 views

How do I calculate the ground footprint of an aerial camera?

I have a very simple math problem, but I cannot seem to figure it out. I need to calculate what portion of the ground will be visible when viewed from a UAV mounted camera. I believe I have it solved ...
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2answers
556 views

Why am I getting a “lens not attached” message on my Nikon camera?

I have a Nikon D3100 with the Nikkor 18-55mm lens. Whenever I attach the lens and turn the camera on, its simply saying "lens not attached". The only time it will take a picture is in manual mode and ...
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2answers
831 views

What kind of lens are used in mobile phones?

Usually what kind of lens are used in mobile phones. I mean of the types similar to convex, concave etc.. Are they fixed focal length usually? How do we get the focal length of camera from digital ...
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1answer
97 views

My NIKKOR 55-200mm lens behaves like it is not attached to the camera, even though it is attached

I just purchased a Nikon D5500 with the 18-55mm and 55-200mm lenses, along with one digital high-def 2.2x teleconverter and a digital high-def .43x super wide angle lens with macro filter. The ...
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9answers
908 views

Canon Starter Level Lenses

I would like to get into photography, and I'm thinking about buying a starter D-SLR camera (450D, 500D). Which Canon lenses do think fit to my purposes as considering I'm a beginner and my budget is ...
12
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7answers
1k 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 ...
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1answer
60 views

Travel lens for LUMIX GH2 [closed]

I am a beginning photographer and own a LUMIX GH2 with the following lens: HD 14-140, LUMIX G Vario 1:4/7-14 (wide angle) and a pancake 20 lens. I am traveling to Europe and need to take a single lens ...
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3answers
106 views

Focusing issues with Nikon 18-35mm f3.5-4.5D on D3200

I have a Nikon D3200 and I have used in the past year and half a 35mm f/1.8 G DX prime lens . I have rented several other lenses and I also have a 50mm 1.8G prime too (I'm sure that some of you will ...
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1answer
37 views

Why is my Sigma 75-300mm lens causing a “there's no lens” error on my alpha mount Sony?

What can I do to get my Sigma 75-300mm telephoto lens to fit my Alpha mount Sony? The lens will attach but the camera says "there's no lens". I used this lens on a 7000 Maxxum 35mm film camera.
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3answers
1k views

How far away can I be and still get a sharp subject with a 100mm lens?

If I have a 100mm lens, how far away can I shoot the subject? If I am shooting basketball, how far can I shoot the subject and still get a sharp picture?
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2answers
7k views

How to calculate the FOV in degrees from focal length or distance?

How does one to calculate the field of view (or angle of view) in degrees from the following details: sensor size (for example, 1") distance to target (for example, 7 feet) focal length (for ...
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5answers
11k views

70-300 vs 55-200 for a Nikon D3200

I own a Nikon 18-55 VR and a v 55-200 (no VR). I love zooming as much as I can, but I have a very limited budget. I am not a professional, so I am learning through experimenting with my camera. An ...
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4answers
117 views

How can I compare different lenses in terms of quality?

I am currently looking to buy a new lens to replace with kit lens, having an extra reach, faster, better image quality and also better video quality. Without buying all the lenses I have shortlisted, ...
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3answers
1k 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 ...
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2answers
152 views

Can add-on lenses for mobile phone cameras improve the image quality?

I have an iPhone 5s. I wonder if using an additional lens increases the image quality or not. Or does it just help in zooming?
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0answers
75 views

What is the best lens to shoot the Milky-Way on a crop camera? [duplicate]

I own a Canon 100d and i like to photograph the stars, I'd like to have a wide angle lens to capture the most of the milky way i can. Possibly as cheap as possible and have really good quality. Thank ...
1
vote
3answers
181 views

Why did manufactures 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) ...
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votes
2answers
97 views

Difference between Canon 18-55mm IS II and IS STM? [duplicate]

I am a newbie into the photography world and would like to buy a DSLR. I am currently shooting with my phone and usually take photos with auto mode. While choosing for a camera I have narrowed my ...
0
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1answer
101 views

What order to use range extending tubes in and the effect on aperture

I have a 500mm mirror lens, at f/8. I have 2 hollow tubes (their order wont matter) and 1 tube which is a "Vario converter" and can be rotated from 2x to 3x (this moves a lens about 1cm along) I ...
5
votes
6answers
3k views

Is an EF 50mm f/1.4 the same as 50mm with an EF-S lens on a Canon 550D?

I have a Canon 550D with the standard 18-55mm kit lens. The 550D has a 1.6× crop factor. My question is very simple but whenever I've asked before (Yahoo Answers) I always got overly-complicated ...
13
votes
4answers
20k views

How does a spherical lens differ from an aspherical lens?

Many lenses (like the Pentax DA 15mm f/4 Limited, or the Nikon AF-S 35mm f/1.4G) are described as having "aspherical lens elements". Does this mean that regular lenses are spherical lenses? What's the ...
2
votes
4answers
551 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 ...
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1answer
115 views

Does lens resolution matter when it comes to high resolution sensors? [duplicate]

I've recently seen the news about Canon's 5ds and 5dsr with their 50mp res sensors. Now I've read on some other forums that you would need some L lenses developed recently ( 5 years) or those woth ...
4
votes
1answer
148 views

What prevents a f/1.8, 24 mm - 70 mm or similar range zoom lens from being made? [duplicate]

I see that it is common to have professional grade lenses such as 24-70mm lenses made at f/2.8. After using a 50mm/1.8, I was wondering what would prevent a more versatile zoom lens to be made that ...
2
votes
1answer
306 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 ...
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2answers
165 views

Why do camera phones have lenses of inferior quality?

I've heard that mobile phone cameras have lenses of inferior quality to those in DSLRs and point and shoot compact cameras. Is this true, and if so, why?
1
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1answer
57 views

Why doesn't the zoom ring on my Vivitar 75-205mm lens turn?

I bought a Vivitar 75-205mm zoom macro lens for Minolta MD yesterday without paying much attention to the seller's details: I bought it as a gift to someone important for me. She only has a 35mm ...
21
votes
8answers
2k views

How long should a lens last?

There are loads of ratings and tests for how long DSLR bodies last, but I have never really seen much that describes the expected lifespan of lenses. Recently, one of my cheap-o lenses (Nikon ...
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1answer
105 views

Why do I get blurry pictures when I take a lens attachment off?

I bought a Canon D3300 bundle. This is my first dSLR. It came with a couple lenses. On Easter, I decided to use a wide angle lens to get all the action. Now I can't use my camera without this lens ...