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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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5
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3answers
3k views

What does the millimeter measurement of a macro lens mean?

I understand that the millimeter measurement on a lens is, for lack of a better term, how far it can "zoom" in or out, but what about macro lenses? What does the millimeter measurement signify? How ...
4
votes
2answers
665 views

What tools and spare parts are needed to repair Canon 200mm f/1.8 USM prime lens?

The focus of Canon 200mm f/1.8 L seems to be entirely USM driven. Manually rotating the black ring has no impact at all on mine, as it is broken. What tool set would be the best I could buy (from ...
4
votes
3answers
1k views

How do I avoid dust entering my camera when changing lenses?

Akin to Should I be worried about getting dust inside my SLR? and What should I do to avoid switching lenses?, I have a certain paranoia of dust/debris entering my camera when changing lenses. Are ...
4
votes
1answer
655 views

What's difference between DSLR and bridge camera lenses?

A typical zoom/telephoto lens can cost a lot but a Canon PowerShot SX40 model has a zoom lens of 24-840mm ! And the camera as a whole still costs less than a single lens. I know that they differ a ...
4
votes
1answer
999 views

Is AF-S DX Micro NIKKOR 85mm f/3.5G lens good for both macro and portrait photography?

I'm thinking of buying a macro lens am considering the Nikon AF-S DX Micro NIKKOR 85mm f/3.5G ED VR. Is this lens really good for portraits? Where can I find sample pictures taken with this lens? Is ...
3
votes
5answers
11k views

If I have an 85mm lens for portraits, is a 50mm useful as well?

I recently got my Canon EF 85mm f1.8, after lot of thought over if I should buy Canon EF 85mm f1.8 or Canon EF 50mm f1.4, I decided on 85mm so that I can shoot portraits of people even from a ...
3
votes
2answers
2k views

Will a prime lens help me get better portraits at a wedding?

I have a Canon 600D with the EF-S 18-55mm f/3.5-5.6 IS lens. I have a friend's wedding coming soon, and I'm not sure if my zoom lens will do a good job or not. I was thinking of buying a prime lens so ...
3
votes
1answer
5k views

What is a “2.2X Pro Telephoto” lens?

I am looking to enter the world of SLR cameras and learning some more about lenses. I came across a package that has a 2.2X pro Telephoto what exactly does that mean and how does it work? (Please ...
3
votes
3answers
769 views

Image Stabilization in Lens vs Body: Which is Cheaper?

Is Image Stabilization better in the lens or the body? Someone already asked that. But I'm trying to make a purchasing decision. It seems that the short answer to my title question is that it's ...
2
votes
4answers
153 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 ...
2
votes
1answer
1k views

Nikon D3200 does not recognize the Nikkor AF-S 50mm 1.8G

I bought a new Nikkor 50mm AF-S 1.8G to add to my Nikon D3200, however, it will not recognize the lens. It says "Lens Not Attached" in all modes with error "NON CPU lenses can only be used in manual ...
2
votes
1answer
836 views

What does “angle of view equivalent to that of some lens in 35mm format” mean?

Does "angle of view equivalent to that of 22.5-585 mm lens in 35mm [135] format" for a digital camera mean that the lens is equivalent to a 22.5-585 mm lens for a DSLR camera?
2
votes
2answers
2k views

Do lenses affect color fidelity?

It seems to me that my costlier (Tamron 90 f/2.8 macro) lens gives better colors than my cheap Canon 18-55 IS kit lens. So does lens matter for color quality? What physical processes are involved in ...
2
votes
4answers
21k 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 ...
2
votes
4answers
1k views

Where to buy used Nikon lenses in the USA?

What are some of the sites available for buying used lenses for the Nikon D-90 camera body? Do any specialize in Nikon or have enough supply to deeply cover Nikon lenses?
2
votes
3answers
2k views

Which lens should someone who enjoys the Canon EF 50mm f/1.8 get next?

I bought a Canon 550D months ago, and at that point I chose the 50mm f/1.8 because it was super affordable and quite popular. I must say I've taken some really wonderful photos with it; mostly with ...
2
votes
1answer
1k views

Which 70-300mm lens between the Nikon VR and Sigma? [duplicate]

I am confused about selecting a 70-300mm lens. I have 2 lenses to decide between, the 'Nikon 70-300mm f/4.5 - 5.6G ED-IF AF-S VR' and the 'Sigma 70-300mm F4-5.6 APO DG'. I hear lot of good things ...
2
votes
5answers
1k views

Should I buy this Nikon 50mm f/1.8?

I've got an opportunity to buy a Nikon Nikkor 50mm f/1.8 AF-D prime lens for £75. Has anyone used this lens who could give an opinion? The reason I'm looking into buying it is that in an earlier ...
1
vote
1answer
474 views

Nikon D3100 Beginner Lens not attached error message

I have a Nikon d3100 with the nikor 18x55 lens. Whenever I attach the lens and turn the camera on it's simply saying "lens not attached". The only time it will take a picture is in manual mode and ...
1
vote
1answer
339 views

Can I save money on lenses by buying a Nikon camera with an in-body autofocus motor?

I have dilemma what camera is better Nikon D5100 or D90. The first one is newer but the second one has lens servo ("screwdriver") motor. My question is: can I save some money overall with the more ...
0
votes
2answers
694 views

How do I convert focal length to maximum distance?

I would like to know whether there is any relation between focal length and distance. For example, what is the max distance I can shoot from a 55mm-300mm lens?
0
votes
3answers
852 views

Moving up to the next lens from 55-200

I do mainly amateur wildlife shots especially whale watching and some football photography just as a hobby. I currently have canon EOS 400d with 18-55, 55-200 and macro lenses. What lens would you ...
0
votes
4answers
4k views

What's the best lens for shooting baby and kids with a DX Nikon?

I have a Nikon D5100 and want to see whats the best lens for shooting pictures of a baby and kids running around inside and outside? I would like to stay under $1,000. Thanks for the help.
0
votes
2answers
13k views

What is the difference between DX format and FX format lenses, and which to choose for what purpose?

http://www.nikon.co.in/products.php?categoryid=1011 What is the difference between DX format and FX format lenses, and which to choose for what purpose? What are the pros and cons of both?
0
votes
2answers
681 views

How do I choose a telephoto zoom lens? [closed]

I have a Canon 1100D kit (18-55mm IS II) and a 50mm f1.8 lens. Now I'm looking for a zoom lens. What do you think about the following: Tamron 18-200mm f3.5-6.3 Tamron 70-300mm f4-f5.6 DI LD Tamron ...
-2
votes
4answers
709 views

What causes blurred/non-sharp images taken of stable objects?

I know about two important reasons which are motioning or shaking camera/hands and dust and dirt on you lens but if you have fixed them and still you have blurred/non-sharp results, what can be the ...
-3
votes
3answers
503 views

Which lens is better: Canon 70-300mm 4-5.6 or 50-200mm? [closed]

For use on a Canon 600D, primarily for travel, landscapes, macro and subjects in motion. An additional consideration: if I go with the 50-200mm I could also afford a 50mm lens.
-3
votes
3answers
672 views

Cheap wide angle lens for Canon EOS 500 D?

I am planning to visit Maldives in couple of weeks.I need a cheaper wide angle lens extension or wide angle lens itself which could fit my Canon EOS 500 D.I would like to capture whole beach in my ...
44
votes
6answers
26k views

Why do pro photographers use huge lenses to take portrait shots?

Every time I see a photoshoot video on youtube, the photographers have the biggest lenses I have ever seen in my life to shoot portraits or full-body shots. For example, the Nikon 70-200 f/2.8 ...or ...
25
votes
2answers
6k views

How do I properly position a lens hood?

I understand the basic idea of a lens hood, but after looking at mine and contemplating how to use it, I get stuck on the same question every time: Does the orientation of the hood on the lens ...
21
votes
2answers
885 views

Considerations when purchasing a prime lens?

What should I be aware of when buying a prime lens (other than that it will fit my camera)? What specs should I pay close attention to?
28
votes
2answers
2k views

Why no zoom lenses below f/2.8?

I can understand that a zoom below f/2.8 would be difficult and costly, but it seems like something pros would kill for. Surely it can't be more expensive (if its possible) than some of the $10k+ ...
26
votes
5answers
11k views

What is the effect of a scratched lens?

I have a lens with a small but significant looking scratch near the center. But I don't see any difference in the photos. Where does the imperfection show up? How important is it to get the piece of ...
2
votes
2answers
966 views

What is a Carl Zeiss lens in a camera?

I have a Sony CyberShot camera and I don't know why they use a lens in the camera. What is a Carl Zeiss lens?
14
votes
7answers
897 views

Upgrade strategy for Canon EOS DSLRs

In February 2010 I bought my first DSLR: EOS Rebel XSi EF-S 18-55IS Kit I also bought a zoom telephoto lens: Canon EF 70-300mm f/4-5.6 IS USM The XSi is a simple camera which I thought would be good ...
12
votes
10answers
2k views

What lenses to bring while traveling? One good wide-telephoto or several smaller ones?

I have a Canon 7D and often take my camera on the road while traveling. In the past I've taken my Sigma 17-70 f/2.8-4 and my Canon 70-300 f/4-5.6, which means that I must switch out lenses quite a ...
10
votes
5answers
2k views

is there a real difference between “digital” and “film” lenses?

I'm looking at the Sigma 20mm F1.8 EX DG ASP RF lens right now to use on a 35mm film Camera (Nikon N80). The DG stands for "Digital Full Frame" according to Sigma, but they don't say what the ...
17
votes
5answers
1k views

How do I find the aperture that produces the highest-quality images for a given lens?

I'm not talking about large aperture (f/1.8, f/2.8...), rather, about small apertures (f/18, f/20, f/23...). I read somewhere (actually I think it was on this site, but I don't exactly remember which ...
16
votes
2answers
8k 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 ...
13
votes
3answers
2k views

What camera & lens combination(s) are ideal for animal and bird photography?

I am interested about shooting animals (including, but not limited to, birds and in general animals that can move fast). So far, I would say I know the basic concepts of camera but I have never ...
9
votes
1answer
6k views

What is the 'Maximum Reproduction Ratio' of a lens?

A review of a Sigma 19mm f2.8 lens contains the following line It has a minimum focusing distance of 20cm /7.9in and a maximum reproduction ratio of 1:7.4. So, as in the title, what is 'maximum ...
27
votes
2answers
3k views

What is a pancake lens?

I've read about a "pancake lens" but don't really understand what that means. What the pros and cons of having a pancake vs. another type of lens? I'm thinking of getting a Panasonic Lumix DMC-GF1 ...
19
votes
6answers
1k views

How do photographers manage multiple lenses?

This is probably a very naive question but I will ask anyway. It appears that most photographers carry multiple lenses. Each lens serves a different purpose. I understand that. However, I can't ...
18
votes
7answers
5k views

What is a great portrait lens for Nikon (under $1000)?

I am currently shooting with a Nikon D90 and use the kit 18-105 lens and a 50mm f/1.8. Mostly I shoot as a hobby but lately I've been asked to do some family and engagement shoots. The 50mm is ...
17
votes
4answers
2k views

What fixed lens to use on a cropped sensor DSLR for mountain landscape photography?

This spring, I want to do a few trips to mountains to take some shots of mountain landscapes, including in sunrise/sunset environments. I already have a Nikon 18-200mm VR (3.5-5.6). I imagine that it ...
13
votes
2answers
334 views

Is it a bad idea to activate lens-corrections in camera, when also use lens-correction in Lightroom?

My EOS has the option to correct known lens-aberration which is activated at the moment. I use Lightroom (5.2) for post-processing, which can also correct lens-aberration. Is it a problem to ...
13
votes
1answer
270 views

In which order is it recommended to set a tilt-shift lens?

After an entire week of having a Canon TS-E 17mm F/4 at my disposal, I am still not sure which control to start setting first. This particular lens has a total of 5 degrees of freedom: ±6.5° tilt ...
13
votes
6answers
2k views

What should I do to switch my gear from Sony to Canon?

So I currently have a Sony A700 which i bought a year ago, and wanting to get some quality glass. I was looking at the Carl Zeiss 24-70/f2.8 lens, but then got talking to a friend who's a canon user. ...
12
votes
3answers
22k views

Should I purchase a Tamron 70-300 USD VC or Canon 70-300 USM IS?

Good day all. I was almost decided on Canon 70-300 USM IS (non L) but recently came to know about the Tamron version (SP AF 70-300 F/4-5.6 Di VC USD) of this one. Neither of these makes you a better ...
10
votes
2answers
1k views

How can I determine if my Sigma 10-20mm lens copy is appropriately sharp and focusing right?

I just purchased a Sigma 10-20mm lens (Canon mount) and based on the reviews I was aware that many people receive copies of the lens that are soft or don't focus properly. I purchased from B&H, so ...