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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
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3answers
581 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?
7
votes
4answers
3k views

Why and when would you consider Canon 17-55 lens over 24-105?

If I'm to buy a cropped sensor Canon camera for personal needs (family shootings, treveling etc - probably 75% outdoors some macro like + portraits + streetshootings + landscapes, 25% indoors mostly ...
7
votes
9answers
3k views

What differences exist between third-party and official lenses for Canon APS-C DSLRs?

I am just another guy who just taken up photography as a social hobby who enjoys taking pics of everyday life, social events / parties & some portraits. Need camera for short overseas trip (2-3 ...
7
votes
2answers
706 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
4answers
272 views

Does sensor size dictate lens size with all other things equal?

Background I'm considering switching from DSLR to mirrorless and have been researching the micro four thirds (M43/MFT) and Sony's new Alpha 7 (A7). While Sony hasn't released many lenses for this new ...
6
votes
4answers
841 views

Should I get a kit or separate lens for my D7000?

I am set on getting a D7000 and am drooling already to get one. My only hurdle left is to determine whether the kit lens is good or if i should get the body only and put the 300$ difference between ...
5
votes
3answers
3k views

How to avoid unflattering facial distortion when using a slightly wide angle lens?

A 35mm prime on a full format body (or 24mm on cropped) is a great lens to walk around with. But when one gets too close to someone to take a picture, invariably some of their features are ...
5
votes
4answers
551 views

What's the difference between vignetting and pinhole?

Sometimes people say that a lens has bad vignetting but it looks very similar to the effect of pinhole (darkened edges). What's the difference? If someone asked to have a vignetting effect (in PP) ...
5
votes
4answers
2k views

How can I attach a lens without a collar to a tripod?

I have a Nikon 80-200 f/2.8 push-pull and I wonder how to use it on a tripod. There is no collar. What is the best solution to attach it to a tripod? ("Best" is rather vague, it should take into ...
5
votes
4answers
3k views

Between Nikon 18-55mm II and 50mm f/1.8, which suits my needs better?

I am an absolute beginner in serious photography. I'm a position to get a Nikon D70 body for $100 or so. I've been researching lenses and I'm debating if I should get the one that originally came ...
5
votes
4answers
837 views

Why is the front element of a telephoto lens larger than a wide angle lens?

A wide angle lens has a wide angle of view, therefore it would make sense that the front of the lens would also be wide. A telephoto lens has a narrow angle of view, so it would make sense that the ...
4
votes
4answers
6k views

Will a 35mm lens work for great indoor pictures of my kids?

I just purchased the Nikon D5100 DSLR. The kit lens that came with it (18-55mm vr) is great when shooting outdoors, but once I try to take indoor pictures of my kids, the images aren't that good. Is ...
3
votes
3answers
251 views

Variable focal length for macro lenses?

True macro lenses come in fixed focal length. Are there any macro lensens which have variable focal lengths? And please explain why yes or why not?
3
votes
3answers
551 views

Is the kit lens focal length specified for APS-C or FF?

I have the 18-55mm kit lens for my Canon 50D and was wondering if they're still specified against full frame 1:1 crop? Would my 18mm actually be 1.6x? I ask because I doubt anyone with a full frame ...
2
votes
4answers
2k views

What is the relationship between focal length and shutter speed?

I am very new to photography and am trying to grasp the basics of it these days. Can someone please help me understand the relationship between focal length of a lens and shutter speed of camera?
2
votes
3answers
420 views

Does the higher price lens always reflect better quality regardless of it being 3rd party or not?

When looking at various lenses you will see the camera manufacturer lenses made by the camera manufacturer. Then you will see other 3rd party lenses (Tamron, Sigma, etc). Does it pay to get the ...
2
votes
1answer
488 views

Which 70-300mm f4-5.6 lens is “better?” [duplicate]

I'm looking for a budget telephoto lens and I'm wondering which of these two is the better option. They have very similar specs: Tamron AF 70-300mm f/4.0-5.6 Di LD Macro Zoom Lens for Canon Digital ...
1
vote
3answers
204 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 ...
19
votes
3answers
4k views

What makes a Carl Zeiss lens so special in a smartphone?

There are smartphones on the market that have a focus towards photography. Some are equipped with a Carl Zeiss lens. I have looked into Wikipedia, which tells me that they are a brand who produces ...
19
votes
2answers
1k views

Why am I allowed to turn my focusing ring beyond infinity?

Is there a good reason why I can turn the focusing ring on my lenses beyond infinity mark on focusing scale? Following recent questions here and here, it sounds like a real usability issue. ...
14
votes
4answers
1k views

Why buy an expensive manual focus lens?

What are the benefits of (expensive brand new) manual focus lenses? Why did you, for example, buy a manual focus Carl Zeiss 85/1.4 rather than an auto-focus Nikon 85/1.4? I'm not concerned with ...
12
votes
3answers
14k 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 ...
12
votes
8answers
4k views

How do I choose a macro lens for a Canon APS-C camera?

I have a Canon 40D and like taking macro shots sometimes, so I'm thinking of buying a macro lens. I'd also like the lens to double up as a portrait lens. I'm not a super serious photographer, so my ...
10
votes
6answers
2k views

Which prime lens to get after the 18-55mm & 55-250mm?

I started out with the 18-55mm IS kit lens on my Canon EOS 550D over a year ago, and added the 55-250mm IS a couple of months back to augment my telephoto reach (based on the recommendations in one of ...
9
votes
8answers
6k 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?
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 ...
8
votes
1answer
862 views

What's the small white plastic dome on old Pentax lenses?

My old Pentax lenses have a small white dome between the aperture ring and the focus ring. See the photo below: The clear white dome calls to mind the larger white plastic domes used in light ...
7
votes
2answers
288 views

Do normal macro lenses suffer the same light reduction as tubes?

When stacking tubes to make a normal lens a macro lens, you have significant light lost due to the increased distance. Do normal macro lenses suffer the same fate? Why or why not?
7
votes
6answers
272 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 ...
7
votes
3answers
343 views

Does it make sense getting any of these “extra” lens packages?

I see many extra lenses on bestbuy.com sold with the Nikon D7000 I am interested in buying. Are any worth it? Are they any good? And, since they bundle them, is the price better then buying the ...
7
votes
2answers
779 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 ...
6
votes
1answer
407 views

When focusing at max zoom, focus is lost after zooming out. Is that normal?

On my Canon kit lens, I could completely zoom in, focus on the object and then zoom out to take the picture with the object still in focus. Now I have a Sigma 18-200mm (with a Canon 600D) and that ...
6
votes
3answers
4k views

How do I make a package look “heroic and important” in a advertising shoot?

I've been given the following assignment, and unsure what to do with it. An advertising agency has hired you to photograph individual "pack shots" of a range of packet soups. The soups come in ...
6
votes
5answers
802 views

Which one wide-medium lens to buy as the main lens for an outdoor wedding?

I have my first solo wedding gig coming up and I'd love recommendations for almost any lens (under $1500, preferably) to go on my 7D. My Sigma wide-angle is basically no longer usable. I have some ...
6
votes
1answer
663 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 ...
5
votes
7answers
4k views

What DX Nikon lenses should I look at for concert/club photography?

I'm looking at upgrading my kit for a music photojournalism internship over the summer and I was wondering what the best way to spend $600 was. My current setup is a d7000, a kit lens, a manual ...
4
votes
5answers
3k views

Should I replace the Canon 18-55mm f/3.5-5.6 kit lens with a 40mm f/2.8 or 50mm f/1.4?

So I'm about to buy my first DSLR (definitely a Canon, probably the 700D) and my original plan was to buy the one with the included 18-55mm f/3.5-5.6 kit lens. At the same time I was thinking about ...
4
votes
2answers
605 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
1answer
631 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
957 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
10k 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
751 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
105 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
2answers
4k 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 ...
2
votes
3answers
3k views

Lens with small scratches on the front element - how do they affect IQ?

I am looking to buy a CANON 28mm 1.8 EF lens. I found an offer, significantly discounted, of a lens with small scratches on the front element. The offer is very tempting. Here is a photo posted by ...
2
votes
1answer
792 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
18k 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 ...