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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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15
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3answers
5k views

Does a bigger aperture create better photos?

I have observed that the wider the aperture, the more expensive the lenses are. However, I would like to know whether it really makes a difference in your photos or not?
4
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3answers
608 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! ...
4
votes
7answers
1k views

What's a Good All Purpose Compact Lens for a dSLR …?

Following on from an earlier post, I've decided to persevere with the behemoth for a bit and see where it goes. It may lead in the direction of a Canon G11/12 or S90/95 - only time will tell. In the ...
4
votes
6answers
317 views

Recommendation for low-priced faster fixed-focal-length lens for Nikon D50

I'm looking for a lens for portraits and closeups (leaves, branches, icicles) that would be fast enough to get a blurred background. Any suggestions? I'd like to get something for $200 or less. ...
15
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6answers
656 views

Overlapping vs. Complementary lenses

I'd like to know if anyone has any advice or experience they can share about using a pair of zoom lenses that have overlapping focal lengths; or a pair of zoom lenses that have adjacent focal lengths. ...
6
votes
4answers
791 views

Is depth of field and bokeh influenced by distance to the subject?

I know that the aperture size has a direct effect on the depth of field. However, what about distance to the subject? Let's say I took two pictures, one at 24mm and one at 70mm, using the same lens ...
5
votes
4answers
6k views

Canon lens equivalent to NIKON AF-S DX 35mm F/1.8G?

A friend of mine has a NIKON AF-S DX 35mm F/1.8G lens and I would like to purchase something (at least) equivalent for my Canon, if possible at a similar price. As I understand it, while 35mm still ...
7
votes
2answers
746 views

Using SLR Lenses on DSLR Cameras

I'm just starting out with DLSR photography - I recently purchased a Sony A230 with the kit lens (18mm - 55mm). I know that the lens mount is compatible with Minolta lenses. These lenses were ...
6
votes
1answer
2k views

Why Must I Lock The Aperture On My AF Lens On My Nikon D40

I am using the Nikon 50mm f1.8 AF lens on my D40 and the photographs look excellent - I have to manual focus, but this suits me just fine for the portrait shots I'm taking. The problem is that to use ...
6
votes
1answer
691 views

Canon 70-200/2.8 IS (mk1) VS 70-200/4 IS

Currently debating which of these lens to get. The f/4 does have the advantage of being lighter, and there have been reviews that it's sharper than the f/2.8 wide open or with both at f/4. Rather ...
2
votes
3answers
1k views

Problem in using 70-300mm non VR lens with Nikon D5000

I am finding it quite difficult to use my 70-300 Manual focus non-VR lens with D5000. Learnt it from experts that 70-300 non VR lens does not perform well with D5k though the lens mounts on this body! ...
2
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3answers
3k views

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 ...
5
votes
2answers
1k views

Nikon 18-200mm lens work with either of these d90, d3100 or d5000?

I am new to DSLR cameras and i have been doing some research on them from last few days and then i wanted to go for one of these model bodies: D90, D5000 or D3100 and i want to purchase the following ...
10
votes
2answers
851 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"?
6
votes
5answers
436 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: ...
21
votes
6answers
996 views

Should I be worried about getting dust inside my SLR?

I recently went to Silverstone to watch the F1 qualifying and took my DSLR camera with me. Throughout the day, I switched lenses a few times, but each time was very conscious that there was a lot of ...
11
votes
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
votes
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 ...
16
votes
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 ...
12
votes
4answers
2k views

Sigma 10-20mm f5.6 alternatives?

I've been wanting to add a wide angle lens to my collection for a while now. Sigma 10-20mm f5.6 looks good. I was looking at it about 2 years ago. I was wondering if there have been newer wide angle ...
7
votes
7answers
448 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 ...
12
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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 ...
5
votes
1answer
376 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 ...
40
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8answers
7k views

Why is the 50mm prime lens the most standard?

Seems that most photographers choose the 50mm as their prime lens (at least from what I've read). I'm looking at getting a prime lens for my Nikon D3000 and the cost difference between the 35mm 1.8 ...
3
votes
6answers
242 views

Anyone got some good, simple introductory lens guides?

I want to educate myself and am immersing myself in everything photography-related. I'm picking up the concepts fast because I was a physics major in college (and thus have some background in optics) ...
10
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5answers
3k views

Is the Nikon 35mm 2.0 worth the extra money over the 1.8?

After asking this question I'm thinking the 35mm prime lens will do the job for me. Since I take a number of photos indoors and in low light conditions, this lens will let me sty reasonably close to ...
10
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4answers
513 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 ...
12
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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 ...
11
votes
4answers
2k views

Lens “family” names - what do they mean and should I care?

Some lens manufacturers have special names for their lens designs/families. Just to name a few: Leica - Summar/Summarit/Summilux, Elmar/Elmarit, Noctilux Carl Zeiss - Planar, Tessar, Sonnar, ...
9
votes
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 ...
12
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4answers
969 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 ...
-5
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1answer
397 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 ...
5
votes
2answers
323 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 ...
1
vote
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 ...
9
votes
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 ...
9
votes
1answer
204 views

What does “usable number” mean in lens specification?

I just got a new Canon EF50/1.8 II lens. Looking at the specs included with the camera there is a line that says Filter Diameter / Usable Number 52 mm / 1 What does "Usable Number" mean?
17
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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 ...
7
votes
2answers
834 views

Pentax to Canon Adapter

My dad has an old Sears KS-2 + 50mm f/1.7, which from a bit of research seems to use a Pentax K-mount. I've looked around a bit and found a Pentax to Canon adapter, which says it supports ...
15
votes
2answers
389 views

Microfiber Lens Cloths

You can find microfiber lens-cleaning cloths on the web for less than $2, or pay $6 for a "Canon" microfiber cloth (or buy at a retail camera store for $15-20). Are all such cloths pretty much the ...
4
votes
3answers
537 views

Choosing first lens for Nikon D-90 body

I'm looking to get a prime lens to go with the Nikon D-90 body. I'm looking at 50mm or 35mm and f/1.8 or f/1.4 and AF or AF-S. It appears that VR (Vibration Reduction) is not an option for any of ...
3
votes
1answer
651 views

Fisheye Lens for Minolta MD mount

Where can i get a minolta fisheye lens (MD Mount) for around 150 dollars or less. Or can i get a lens that gives some of the distorted perspective of a fisheye lens for around the same price?
8
votes
1answer
331 views

Tips for using the Lensbaby 3G?

I just picked one up as a much less expensive option than a tilt/shift lens for the Pentax mount (they're hard to find and crazy expensive for the K-mount). I have done some experimental shots with ...
3
votes
1answer
161 views

Can a neck strap be attached to Nikon 80-400mm?

I saw somewhere that a large and heavy telephoto lens had an attachment for a neck strap, that replaces the neck strap for the camera body. It was, I think, a Nikon 200-400mm lens. But I'm not sure. ...
3
votes
3answers
1k views

What are the pros/cons of Nikon AF-S 17-35 versus AF-S 16-35?

I have Nikkor 17-35 f/2.8 and I have been using it for years ... it works absolutely well and still performing like champ. Now, looking at the new AF-S 16-35 MTF chart, it kinda makes me wonder, ...
7
votes
4answers
386 views

Would I gain 1 Stop with a L lenses

We usually refer to the F number to compare how fast is a lenses with another one. I understand that the optic quality should help as well. So would a L series in Canon (or whatever is the equivalent ...
6
votes
1answer
182 views

popular fd/canon ae-1 lenses/acessories

I'm giving serious consideration to switching from primarily shooting film with a Pentax K1000 to a Canon AE-1 (and/or AE-1 Program). Is anyone familiar with the model? What are the popular fd ...
6
votes
2answers
242 views

Can a hard impact foul up a lens' focus?

Recently, a camera with lens attached got knocked off a chair and hit the floor (not my gear, fortunately!). Following that, the lens would not focus properly, either with manual focus or auto. The ...
8
votes
4answers
532 views

Fixed HQ lens with image crop or medium quality zoom lens?

Is it better to spend my money on a medium quality say 15-85 zoom lens or a very high quality fixed lens at say 24MM. (e.g 24mm 1.4 L canon) and crop in - not blow up beyond normal resolution). A ...
4
votes
3answers
539 views

The green light is blinking on D5000 when I mount a Sigma 24-70 EX DG Macro

I just got the lens. I know it doesn't autofocus on my camera body because it doesn't have built in motor but at least it should be usable in manual mode right?
12
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4answers
3k views

Is there a drawback in buying an imported (gray market) lens?

I am planning to buy a Nikon 55-200mm lens and I was checking prices at B&H and there is a $30 difference (almost 15% of cost) between "Imported" and "USA" lenses. What is the difference between ...