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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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2answers
2k views

What is the difference between these two Canon kit lenses?

I want to but a Canon 1100D, but I have no idea between these kits: Canon 1100D IS Canon 1100D IS II The site is in Germany, so I couldn't understand very well, but when I tried to translate, I ...
9
votes
6answers
12k views

What is a good general purpose lens for Canon?

As an upgrade from kit lens 18-55mm, which would be a better general purpose lens? Obviously there is no "best" option, as everyone has a different budget and style, but what are the best options ...
4
votes
0answers
465 views

Does a larger lens filter size imply more light and better photos? [duplicate]

Possible Duplicate: How does the lens diameter influence photo quality? I'm wondering about 50mm f/1.4 for Nikons. The Nikon 50mm f/1.4D has a 52mm filter size. The Sigma 50mm f/1.4 has a ...
2
votes
11answers
9k views

What Canon lenses do you suggest for wedding photography on a tight budget?

I am new to photography. I have Canon 1000d (with 18 -55 mm lens). My basic interest is wedding photography. I am planning to get a prime and a telephoto lens. So, my dilemma is: Should I go for ...
5
votes
1answer
224 views

Should I get a lens repaired or buy a new one?

I have a 28-135mm Canon lens that I picked up a few years ago for $200. The zoom has started sticking in the last couple of days. It still focuses fine, but can be annoying trying to zoom in/out ...
18
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6answers
3k 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 ...
8
votes
3answers
639 views

What motor gets used if both lens and camera body have a focus motor?

If both a camera body and lens have motorized autofocus, would one be used over the other or would both work in tandem to speed the focus process along?
18
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4answers
11k views

How do camera body motors compare to in-lens motors for focusing?

What is the difference between using a motor on the camera body and the motor built into lenses? Aside from how both compare in terms of speed, what differences would I notice if I use a body with a ...
2
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6answers
726 views

Which Telephoto Zoom Lens?

I am an enthusiastic hobbyist who uses the camera for social events/parties once or twice every week. My current kit is Canon 60D and for close up portraits, I am using Sigma 85mm F1.4 and for my ...
2
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3answers
410 views

What is the difference between the two Pentax 50-200mm DA lenses?

Pentax offers two DA zoom lenses with a 50-200mm range: smc PENTAX DA 50-200mm F4-5.6 ED WR smc PENTAX DA 50-200mm F4-5.6 ED The only obvious difference I see between them is that one is weather ...
17
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5answers
2k views

How can aperture be f/11 on a lens with an aperture range designation of 3.5-5.6?

I made a series of outdoor shots with Nikon D5000, with the 18-55mm 1:3.5-5.6G VR kit lens. On some shots, I see in the EXIF info f/11, and in another shot, f/9. How can that be, that the f-number ...
5
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3answers
922 views

For fast daytime shooting of external buildings and indoor art, should I choose 24-70 mm or 70-200 mm?

If I'm on a daytime cycling/walking tour (i.e. little time to compose or change lenses) of external buildings and inside churches (no flash and no tripod), which lens is best to capture non-blurry ...
12
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7answers
4k views

Does an ultra-wide lens perform well in landscape photography?

I own a DSLR for less than a year, currently shooting with my Nikon D90 and 18-70mm DX lens. Since the beginning of it, I am deeply in love with shooting landscapes photography: seascapes, skyscapes, ...
1
vote
2answers
604 views

What are the best fisheye lenses one can still buy that are full frame on 35mm film?

The vast bulk of fisheye lenses produced now are targeted at digital image sensors and so they aren't full frame on 35mm film. What are the best fisheye lenses that one can still buy reliably that are ...
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5answers
5k views

What is the meaning of “stopped down”?

Was reading this answer (emphasis mine): It also tells us that the lens was stopped down, as if it were wide open there would be no corners to cause diffraction, regardless of the number of ...
10
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1answer
439 views

Can anyone identify this lens?

I read once, in a book, about a lens that was an "inverse fisheye". Basically a hemispherical mirror mounted at one end of a glass tube. I can't remember what it was called, nor can I find any ...
27
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3answers
3k views

What does a hexagonal sun tell us about the camera lens/sensor?

In this picture, we see that the sun comes out as a hexagon. I am sure it is not arbitrary. What does the hexagon tell us about the instrument that captured the image?
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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 ...
11
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4answers
2k views

Is EF-S 17-55 f2.8 IS USM really a 'L series' grade lens?

Some reviews say yes. But since it costs as much as an EF equivalent, why not name it as 'L'? Is there any better lenses in this range (EF or EF-S)?
2
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3answers
952 views

What is a good freelensing lens I could use on my Nikon DX?

I have a Nikon D7000 and have tried freelensing with my Rokinon 85mm f/1.4, Nikon 35mm f/1.8 DX, and a zoom Nikon 35-70mm f/2.8 without much success. The problem is that everything is out of focus no ...
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5answers
1k views

Are Sigma DC 18-50 1:2.8 EX sharpness problems common with wide apertures?

I got this Sigma DC 18-50mm f/2.8 EX MACRO HSM lens few weeks ago, but I noticed considerable sharpness problems with wide apertures. Until f3.5 (or even f4.5) this lens can't really be used. I would ...
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3answers
214 views

What web-based expert resources for Nikon are similar to The Digital Picture for Canon?

I've followed Canon photo products for years and I can't go past this great expert resource on Canon cameras, lenses and few other accessories photographer should know about and read before buying ...
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7answers
9k views

How do I get the best results for sports with a 70-200mm f/2.8?

Can anyone help? I am using a nikon d7000 for sports photography. My husband kindly bought me a sigma 70-200mm telephoto lens 2.8 as I shoot a lot of low light indoor sports. I have only just started ...
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1answer
2k views

Macro Lens comparison : Nikon 85mm DX vs Nikon 60mm (FX)

What is the point of buying the 85mm DX AF-S f/3.5G for 476$ versus the 60mm AF-S f/2.8G for 540$. It's 64$ to get f/2.8G over f/3.5G, it's close to be the same focal on a DX 85 vs 90 (1.5 X 60) and ...
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5answers
3k views

How to choose a lens to get a shallow DOF effect? [duplicate]

Possible Duplicates: Can I get a shallow DOF using a kit lens? Help with getting bokeh effect. I'm an amateur photographer, just getting into photography. I read some things about lens ...
2
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7answers
1k views

What lens should i buy for my vacation?

I am going on a cruise to Greece and Italy this summer, I really wanted to buy a new Canon lens for my t2i but i am confused whether to buy the 17-40 f/4.0 or the 15mm 2.8 fisheye. Any help?
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10answers
4k views

How much do lens lineups vary across DSLR platforms?

I was reading this question and recalled how often I hear the advice "choose your lenses and then choose the body that matches" in the context of deciding on a camera platform ...
8
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5answers
3k views

How can I get maximum DoF with no distance markers?

I am aware of what hyperfocal distance is and the general principles behind it. However, most of the tutorials I have seen and read regarding it make use of lenses with focus distance indicators. ...
6
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7answers
6k views

How can I visualize or simulate the effect of different focal lengths?

I have seen many camera review sites illustrate the effect of using different focal lengths on the same photograph using frames. There are also similar illustrations to compare different sensors (full ...
9
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6answers
325 views

Aside from sharpness & speed, what are the benefits to photo composition\optical quality provided by premium lenses over their cheaper counterpart?

I have gone through quite a few lens reviews and questions on this site that recommend expensive lenses over their cheaper counterparts. From what I've seen in the reviews, there is a marked ...
4
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4answers
953 views

35mm prime lens on a Nikon D50

I'm looking at getting a prime lens for my Nikon D50, I'm looking at the 50mm ƒ1.8 and the 35mm ƒ1.8 DX. What I understand is that the 50mm will actually give me an equivalent focal length of 75mm, ...
5
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2answers
1k views

Can't auto-focus at full zoom

I have a Canon 1000d, and the standard lens EF-S 18-55mm. Recently I was out taking photos and I've noticed that if I zoom in fully, the lens can't auto focus. I can still take shots using manual ...
11
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4answers
2k views

Is it better to upgrade Canon 18-55mm IS kit lens to the 18-200mm, or complement with 55-250mm? [duplicate]

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 ...
13
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7answers
2k views

Is there a difference in the sensor technology in entry level cameras vs. that in pro or semi-pro DSLRs?

Obviously there are differences in everything, both optics-wise and mechanism-wise, but I would like to know: Are the materials used to construct sensors (disregarding sensor size) different at any ...
6
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4answers
11k views

Can I use Minolta Maxxum lenses with Sony Alpha cameras?

I have an old Minolta Maxxum 7000i AF-SLR camera from early 90s. I have a complete set of lenses, filters, etc., I found out that Sony ultimately ended up buying Minolta, and developing their alpha ...
0
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0answers
503 views

What is the difference between a Canon EF and EF-S lens? [duplicate]

Possible Duplicate: What is the difference between EF and EF-S lenses? I read here: EF: Electronic Focus EF-S: Short-Back Electronic Focus Is the difference significant? How much ...
26
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5answers
13k 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 ...
3
votes
7answers
9k views

Is there an IQ gain from Canon's 18-135 to 24-105L?

Just got a Canon 40D body, and was about to get Canon's 24-105L lens. I hear people raving about the lens, and it all made sense until I saw a Cameralabs' review of the lens. So don’t buy the EF ...
19
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4answers
12k views

Why is the aperture ring removed from new Nikon lenses?

Maybe I'm wrong, but I notice that Nikon's newer lenses don't have an aperture ring. For example, an older AF 35 mm f/2D is now replaced by AF-S DX 35 mm f/1.8G, or AF 50 mm f/1.8D is replaced by a ...
35
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9answers
8k views

Why do people recommend 50mm or other prime lenses as starting lenses for learning photography?

I've seen quite a few people recommend the 50mm prime lenses, in particular the sub-$100 50mm/f1.8, as a starting lens for photographers (especially because they're likely to be using cameras with ...
12
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3answers
2k views

Does a camera's crop factor apply to the magnification of macro shots?

If I have a lenses (or in my case extension tubes) that would allow the lens to magnify 1:1, does a 1.5x crop factor body make it really 1.5:1 ?
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3answers
1k views

When removing a lens, does Image Stabilization need to be turned off on the lens?

I am taking a photograph course and the instructor, who repairs cameras, says it is extremely important to turn off the Image Stabilization on the lens before you remove it from the camera. He says ...
23
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5answers
7k views

How to capture the scene exactly as my eyes can see?

What settings of my DSLR camera will emulate the scene exactly as I can see through my naked eyes? I think it's not possible to get the contrast and colors exactly as my eyes can see, and it may vary ...
4
votes
3answers
611 views

How to avoid lens flare?

I often have slight reflections in my lens when the sun (or another bright source of light) is directly in front of my camera. As a result of this effect I had to change the composition of my picture! ...
40
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11answers
4k views

Should I keep Image Stabilization (IS) off when I do not actually need it?

I own a Canon 7D and a EF-S 15-85 IS lens and I keep the image stabilization turned on all the time. Recently, an experienced photographer told me that this is a huge mistake because it reduces image ...
7
votes
8answers
2k views

Is the Nikon 35mm f/1.8 AF-S being replaced?

I need a fast lens with autofocus for taking indoor shots with my Nikon D3000. I have been looking at the Nikon 35mm f/1.8 AF-S for a while and now that I am ready to get one they are next to ...
7
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8answers
4k 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 ...
19
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12answers
2k views

What's the best way to create a tilt-shift photograph?

Specifically, what's the best way to go about shooting photos that have a fake miniature quality to them, which produces high-quality (and believable) images? Is there some special lens that you can ...
9
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3answers
1k views

Performance of Sigma 85mm F1.4 EX DGM on Canon 60D

As the Sigma 85mm f/1.4 EX DG HSM was originally designed for Full-frame cameras, how would the performance be affected if I use it on Canon 60D (APS-C camera). Q1) I need confirmation that this lens ...
15
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5answers
5k views

What's the difference between the Canon and Nikon lenses mounts?

I was wondering what, if any, are the technical differences between the two mounting systems. Does one auto focus faster? Can one hold more weight? Things along those lines that make them different. ...