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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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Is Sigma 17-70mm f/2.8-4 DC OS or Canon 17-55mm IS USM the better general purpose lens?

I'm looking for a new general purpose walk around lenses for my Canon XTI Rebel. Right now I have a the original Sigma 17-70 f/2.4-4.5 that does not have image stabilization, and looking to upgrade to ...
11
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9answers
4k views

What options do I have for a normal and fast prime lens for a Canon APS-C camera?

I'm looking for a normal prime lens, desirably fast and not too expensive, for my 450D. 50mm seems to be the normal focal length on FF, thus for APS-C, I need about 30mm. I want it to be fast as I'm ...
12
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2answers
873 views

Does a crop sensor affect closest focusing distance? Why does it not affect focal length in EXIF data?

Since I am considering to buy the Nikkor 105mm micro VR, I wondered if the cropped sensor does affect the closest focusing distance of 0.31m? Thinking about this, the following additional (and ...
10
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2answers
905 views

What is manual-priority autofocus?

I have been looking at the Nikon AF-S 35mm f1.8 lens and it has two focus settings: Manual Focus Manual-Priority Autofocus What is "manual-priority autofocus"?
10
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3answers
19k views

Will lenses from a Rebel work on higher-model Canon cameras?

I am thinking about purchasing a Canon 60D and selling my Rebel XT and wondered if I would need to purchase new lenses? I only have two but as you all know, once you invest it is hard to not take ...
5
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4answers
4k views

Is it best to transport a camera with lens attached, or off?

I'm traveling now(I'm at Aruba) and I bought me a Canon 60D with the lens kit(EFS 18-55mm). I never used a camera that has removable lens like this one, my last one was a Panasonic Lumix DMC-FZ18, so ...
2
votes
4answers
830 views

Beginner lens decision [duplicate]

I'm about to buy a Nikon D3100 and can't decide which kit lens I should pick. On the one hand there is the standard AF-S 18-55mm VR lens and on the other hand the AF-S 18-105mm VR. A bit more zoom ...
6
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5answers
455 views

What is needed for a photoshoot in a concert?

I have been invited to take some photos from an ensemble in a conservatory. I do photography a lot, but mostly outdoors and this is going to be my first experience. I have a Canon 50D with 2 lenses: ...
33
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5answers
6k views

How do constant aperture lenses work?

Cheaper zoom lenses usually are faster at the wide end and slower at the long end (for example, the $150 Canon EF-S 18-55mm f/3.5-5.6). More expensive constant-aperture zoom lenses have the same ...
15
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10answers
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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 ...
11
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6answers
2k views

What should I do to avoid switching lenses?

I'm thinking of buying a telephoto lens for my Canon 550D (3x zoom isn't very helpful), but I won't be able to do very good macro shots with it. Since I do a lot of both, I would be switching lenses ...
6
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6answers
2k views

Lens for shooting paintings with Canon 550d

I am purchasing a Canon 550d primarily to document my fiance's artwork for archival purposes. I would like to know what lens or lenses you would recommend in order to minimise distortion. I will be ...
7
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4answers
1k views

Is it worth repairing a broken kit lens?

I dropped my camera while on holiday last summer. Thankfully, my camera wasn't damaged but the kit lens has lost the ability to autofocus and the UV filter and 58mm to 52mm filter step-down (I use it ...
5
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2answers
2k views

wide angle and macro lens converter or adapter

I'm new to the world of photography and also have a pretty tight budget, so I'm interested if anyone has tried using a wide angle + macro lens converter/adaptor such as this (Forum discussion about ...
17
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3answers
5k views

Is it ok to use a lens hood in low light?

I have read some of the other questions about lens hoods (for example, this one) and I hope that this is specific enough to not be considered a duplicate. My understanding is that lens hoods block ...
7
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6answers
280 views

Is it technically possible to build a camera body to correct for lens defects?

Most lenses tend to be expensive because the lens needs to be very complicated in order to correct for various optical effects (aberration, etc). Is it possible to build a sensor and processor ...
4
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1answer
1k 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 ...
14
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1answer
6k views

What is a focus limiter?

What is a focus limiter and how does it work? What is the advantage of it? For instance Tamron 90/2.8 Macro has a focus limiter. According to the documentation: In the limit position, the Tamron ...
20
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3answers
24k views

What is the difference between Canon “L” lenses and non-L lenses?

The Canon L lenses are much more expensive and presumably much better quality than non-L lenses. What makes an "L" lens? How much better are they over a similar length/speed "ordinary" canon lenses?
7
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7answers
452 views

How come some 3rd-party lenses cost more than those from the manufacturer?

I was trying to save some cash on a 50mm f/1.4 for my Nikon d7000. I see the Nikon 50mm f/1.4 costs almost $400 USD. I thought a 3rd-party lens would be cheaper so I checked out the equivalent Sigma ...
13
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5answers
4k views

How does a tilt-shift lens work, and why does it solve certain problems?

So, I understand that a tilt-shift lens solves certain problems with shooting buildings and getting straight lines and such, but what I've not understood is why. I'm looking for the technical reasons ...
6
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2answers
517 views

Is it worth buying cheap lens attachments for my camera?

I'm considering buying a fisheye/wide-angle modifier. The brand-name modifier costs around £150 for a single wide-angle modifier which also requires an adapter ring. I've also seen, on ebay, kits ...
10
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8answers
7k views

What is the fastest lens available for a DSLR?

I've seen references to f1.2 lenses. I was wondering, are there any faster lenses available for a DSLR mount?
5
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1answer
393 views

AF switch on lens vs. AF switch on camera

Is there any difference between using only the AF/MF switch on my camera (Nikon D90) or using the AF/MF switch on my lens (18-105mm)? Could having autofocus on my camera switched to manual focus ...
11
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4answers
3k views

Is Canon EF 24-70mm f/2.8 L USM Lens that much better than Sigma 24-70mm f2.8?

I am looking for a 24-70mm f2.8 lens for general use and low light gig/concert photography. The 2 I am looking at are: Canon EF 24-70mm f/2.8 L USM Lens ...
12
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3answers
24k 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
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3answers
2k views

What do the red values mean on the distance scale of a lens?

Take this lens I have for example, it has red values on the distance scale (not sure what do you call it exactly) next to the focus ring. What does these values mean?
11
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4answers
826 views

Experiences with lens repairs - Quality degradation?

A friend of mine fell with my new Canon EFS 15-85mm lens - nothing happened to the camera, but the lens is... well see for yourself: As you can see the top part of the lens looks bent towards the ...
2
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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 ...
9
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4answers
3k views

EF-S 18-55mm kit vs 10-22mm f/3.5-4.5 for nature photography

I moved from a point and shoot to a DSLR last year and I love to photograph nature in general. I have a T2i/550D with the 18-55mm kit lens and was wondering if I would benefit from the EF-S 10-22mm ...
4
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6answers
2k views

Can you help me justify my desire to purchase the Nikkor 24-70mm f/2.8 even though I find it rather pricey?

I have a D70 with the stock Nikkor AF-S 18-70mm f/3.5-4.5G ED DX lens. I'm about to replace the body with a D7000. I've found the 3.5 f-stop a little limiting in terms of DoF - and having viewed ...
31
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6answers
22k views

Is it worth to upgrade from Canon 50mm f/1.8 to Canon 50mm f/1.4 on 550d?

I'm a newbie in the world of DSLR photography, having played around with my Canon 550d for few months. After posting my first question here and getting some superb advices I decided to buy Canon 50mm ...
12
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2answers
2k views

When I use FX lenses on a DX camera, does the focal length or minimum aperture change?

If I put a Nikkor 35mm f/2 FX lens on a DX camera, is it still 35mm f/2, or has the effective focal length or minimum aperture changed, because it is being used on a smaller format than what it was ...
11
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5answers
3k views

Really? Why does a Nikkor 35mm f/1.4 cost almost $2,000?

I am trying to price out a 35mm f/1.4 lens for my Nikon D7000, and I am shocked to find that B&H sells them for almost $2,000, whereas the f/1.8 sells for a couple hundred. Am I looking at the ...
35
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9answers
8k views

What are the dangers of removing a lens while the camera is on?

The manual warns that you should turn the camera off to remove the lens, but it doesn't say why. I suspect this may have to do with dust, but I could imagine there are lots of other reasons. I'm ...
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1answer
399 views

AF-S NIKKOR 50mm f/1.4G or AF NIKKOR 50mm f/1.4D? [duplicate]

Possible Duplicate: nikon lens- to G or not to G? AF-S NIKKOR 50mm f/1.4G for $484 AF NIKKOR 50mm f/1.4D for $369 is the G worth 100$ more? also, i imagine that the G is somehow better to ...
10
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4answers
521 views

Nikon lenses: to G or not to G?

I am set to buy a 2nd lens to my d7000 kit lens. I’m close to deciding between the 35 or 50 mm, I will likely go for the f1.4 version and wanted to determine if I would need or appreciate the G ...
13
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8answers
4k views

Will using a lens at max aperture (“wide open”) result in poor images?

I’m looking to add a second lens to my kit lens I got with my Nikon d7000. I have read several reviews on both the 35 and 50 mm lenses made by Nikon in particular that said using either lens at the ...
15
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5answers
4k views

Can I use my APS-C kit lens as a reference for choosing between 50mm or 35mm prime lenses?

I'm looking at getting a second lens in addition to my Nikon D7000's kit lens. I want to know if it's possible to use my 18m-105mm kit lens to get an idea of the focal length for a 35mm lens vs. a 50 ...
6
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5answers
1k views

Would a large aperture lens help against low light subjects being blurry?

I want to get nice shots with ambient light (meaning the natural light in the room of restaurants, living room with x-mas tree lights only...) so I can catch the glow of light on people’s faces as ...
7
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7answers
2k views

How come there are no 24-70mm f/2.8 lenses with image stabilization?

There definitely aren't any Canon or Nikon lenses. I also have not seen any third party lenses. I can think of two reasons for this: There is some technical limitation (which I tend to doubt since ...
5
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2answers
341 views

Is “slow” focusing/shutter release normal on a “fast” lens?

I just received a 35mm prime lens for Christmas (Nikkor 35mm f/1.8) and it is painfully slow to take pictures at times. Sometimes the shutter release is almost instantaneous, like with my other (kit ...
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1answer
1k views

whats with the nikor lens naming using the letters D + G? [duplicate]

Possible Duplicate: What do all those cryptic number and letter codes in a lens name mean? Nikon 50mm f/1.8D Nikon 35mm f/1.8G what does the D and G distinction mean on these lenses and ...
12
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4answers
1k views

How close can a lens focus?

From my understanding, if you want to do some macro photography it is better to have a lens that can focus when it is really close to the subject. Sometimes people buy extension tubes to help them ...
7
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4answers
302 views

Lenses for fast-paced environment

What two lenses should you carry to be able to take a majority of shots in a fast paced environment? Or more specifically: I just watched a documentary on PBS about Pete Souza, the current White ...
9
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4answers
2k views

What Nikon lens to buy to make photos of birds?

Currently, the zoomiest lens I have is a Nikon 18-200mm. I want to be able to take photos of wildlife, or in most cases birds, which I can't do at 200mm. For a long time, I wanted to purchase a Nikon ...
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5answers
5k views

How can I get bokeh with an aperture of 3.5 as my max?

I am trying to get DOF portraits of my daughter with my Nikon d7000, as per my previous post. I have zoomed in to 100mm or so and tried to get a large aperture but as I zoom, the camera decreases f# ...
11
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4answers
5k views

Can I get a shallow DOF using a kit lens? [duplicate]

Possible Duplicate: How can I get dramatic shallow DOF with a kit lens? Is it possible to generate shallow DOF with a "kit" lens, and how? In my case, I have the Nikon D7000 with the ...
32
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7answers
2k views

Do good lenses really last a lifetime?

I’ve heard people say “a good lens will last a lifetime” many times. Is this actually true of modern lenses? More specifically, will a good lens be usable for a lifetime? With an inexpensive adapter, ...
26
votes
2answers
7k 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 ...