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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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10
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5answers
874 views

What are the pros and cons of non-extending zoom lenses?

Apart from the obvious benefit of not changing the center of gravity, what are the technical pros and cons of zoom lenses that do not change "physical length" when changing the focal length? For ...
26
votes
9answers
1k views

Are Sigma lenses comparable to Canon lenses for a Canon camera?

I always feel that I should buy a Canon lens for my Canon camera, and Sigma would just be a cheap knock-off. Is that the case?
1
vote
1answer
216 views

Is it min-max aperture range on Nikkor Lens label?

The label says 18-200m F/3.5-5.6G Nikkor lens. Focal length and G type are clear. From the lens specs I see that min aperture is F/3.5 and max is F/22. So what does the label aperture range means?
10
votes
2answers
893 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 ...
3
votes
2answers
3k views

Can a Teleconverter be used to extend a Sigma 70-300mm f/4-5.6 lens?

I have a Nikon D3100, a standard 18-55mm and Sigma 70-300mm lens without IS. Is it true that a teleconverter cannot be used with my Sigma lens? Can it be used only with block lenses, or is there ...
6
votes
3answers
3k views

Are there any good pancake lenses for Canon EOS DSLRs?

I've always liked the thought of having a super-thin ("pancake") lens for my Canon DSLR, for when I just want to take my camera out with as little bulk as possible. I'm not even too concerned about ...
4
votes
1answer
756 views

24mm f2.8 vs 24-85 f3.5-f4.5 (Nikon)

I have a 17-50 f2.8 zoom (Tamron) and while it performs admirably, it is heavy. So I was thinking of a 24mm f2.8 prime, when I also read up on the 24-85 f3.5-4.5 (non-VR) AFS lens. Here's the ...
8
votes
3answers
1k views

How to Maximize the Miniaturization Effect With a Tilt-Shift Lens?

It is know that using a tilt-shift lens can be used to make a scene look miniature. Now that I have a tilt-shift lens at my disposal with 5 degrees of freedom, what should I do to making things look ...
2
votes
2answers
863 views

Zoom Lens and Prime Lens Photo Comparison

Are there any examples comparing the picture quality of prime lenses and zoom lenses with the same scene and shot at the same focal length? I have not seen anything that shows me why a prime is better ...
-2
votes
1answer
146 views

Canon 550D lens suggestions [duplicate]

Possible Duplicate: What is a good two lens “starter kit”? I just need to ask one thing that I am confused that which lens to buy for my Canon 550D as I am not a PRO and I ...
5
votes
2answers
991 views

best general lens for Canon crop [duplicate]

Possible Duplicate: What is a good general purpose lens for Canon? Which lens should someone who enjoys the Canon EF 50mm f/1.8 get next? I have recently purchased a Canon 600D (body ...
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 ...
1
vote
3answers
113 views

Can lens accessories be used interchangeably?

I have noticed that filters seem to be brand agnostic, i.e., they can be used with any lens as long as the diameter matches. Is this true for other lens accessories like hoods and lens caps as well? ...
11
votes
9answers
2k views

Galapagos vacation — what photo gear should I take?

Soon I'm off to the Galapagos Islands. I have to admit I've been spending a lot of hours talking to people and reading reviews, and that has left me very confused choosing the correct gear for my ...
13
votes
1answer
325 views

Metering with a Tilt-Shift Lens

The manual of the Canon TS-E 17mm F/4 states that metering only works when the lens tilt and shift are set to zero (in the same position as a standard lens would be). Logically this implies that the ...
5
votes
5answers
858 views

What is the average lifetime of lenses, specially L lenses

I have a few and they are very well taken care of. Still curious to know, what is the average lifespan of L lenses ( and non L lenses as well, USM version ) any idea?
2
votes
11answers
8k 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 ...
1
vote
2answers
97 views

Are there any wide angle lenses that will work on the NIKKOR 1 to give about 24 35mm equivalent?

I like the look of the NIKKOR 1, but wish to have the option of a real wide angle len. Can I get one at a reasonable price by using mount converts etc?
3
votes
1answer
252 views

What do I need in order to mount my zoom lens onto a tripod?

I just purchased a cheap Opteka zoom lens and it is super long -- over two feet when fully elongated. It has built-in a tripod mount and I have no idea how to use it. I currently own a Vanguard ...
10
votes
3answers
2k views

Are the Canon 15-85mm + 50mm f/1.8 adequate substitutes for the 17-55mm f/2.8?

The EF-S 15-85mm lens is a relatively recent lens, and I haven't seen too many recommendations on it thus far. However, most of the reviews have been very positive and the lens is said to be optically ...
7
votes
2answers
429 views

Why is aspheric glass expensive?

When one makes a piece of glass for a lens, they start with a hunk of glass and grind it into the desired shape. When a lens is aspheric, this doesn't change; merely the shape the lens is ground into ...
5
votes
1answer
790 views

Are mirror lenses appropriate for DSLR astrophotography?

There's a whole host of inexpensive mirror lenses available in the 500 mm - 800 mm range (this for example). They have slow max apertures (f/5.6-8) and a donut shaped bokeh (not a problem ...
8
votes
3answers
741 views

Cameras using mirrors instead of lenses?

In astronomy, telescopes are most commonly built with mirrors, but there are refractors using lenses. All cameras I know of for Earthly purposes — portraits, landscapes, etc. — use only lenses, not ...
5
votes
1answer
1k views

How do I remove a broken lens mount ring from a lens?

Today my Nikon d90 was drop with attached Nikkor 18-200mm lens. The lens detached from the body and ripped of the metal ring with screws from the body. How can I fix it? I don't know how to remove the ...
5
votes
3answers
981 views

How does using a lens with some focal length on a full frame camera differ from using a lens with “equivalent” focal lens on a crop camera?

As an example, a 35mm lens on a crop body (such as Nikon DX) is said to be "equivalent" to a 50mm lens on a full frame body. Equivalent here means that they will have the same field of view, but what ...
0
votes
1answer
351 views

Where are the principal planes located in a camera lens?

I want to find locations of the principal planes of a camera lens. I have looked at the specification for my lens here and here, but did not find what I need. But there are many other parameters in ...
8
votes
4answers
830 views

Why buy an intentionally soft lens?

While reading some reviews of older lenses, I keep reading "It's soft wide open, but that's not always a problem with portraits." Over my rather short time in photography thus far, I've come to ...
50
votes
5answers
1k views

Is there development in the world of lenses?

Now, I'm not an expert, so if this post makes you laugh, you're welcome. Still, as far as I know there are basically two components that determine the potential quality of a camera's photos: Sensor ...
3
votes
4answers
698 views

What type of wide-angled lens is the best option for photographing rooms in a hotel?

We have a small B&B and would like ourself to do photos for frequent change on the website. I am very good at photographing, technical aspects however are not my strongest side. I need to have ...
0
votes
1answer
156 views

Can anyone recommend some good second hand camera stores in Japan?

I recently purchased an OM-2n, which I've been really happy with. However, I am looking to pick up a few more lenses on my next trip to Japan. Does anyone have any recommendations on good second hand ...
4
votes
4answers
2k views

When would one choose a 50mm f/1.4 over 85mm f/1.8 (or vice versa) for portraits?

Say you are using a crop body, and you have both 50mm/1.4 USM and 85mm/1.8 USM lens in your bag. Now, you want to take a portrait where there is adequate light and space, and you have decided to take ...
-3
votes
3answers
638 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 ...
0
votes
2answers
211 views

Looking for a reasonably priced wide angle lens [closed]

I have a Canon Rebel XS and recently I've been looking for a wide angle lens. Specifically, anything less than 28mm. Do you guys have any recommendations for me? I'm looking for something in the ...
1
vote
1answer
108 views

Outdoor Event - D80 lenses [closed]

Ola there, can someone help me with lens suggestions for an Outodoor (bright, booths, performances) event - D80 - on a budget...Location: Rio de Janeiro. Nature of the event: art performances, booths, ...
9
votes
4answers
828 views

Is it possible for a lens to produce too much contrast?

I came across a complaint that a certain lens produces too much contrast. The lens was described as rendering "cartoonish" contrast when shooting a portrait with diffused light from a window, where ...
1
vote
4answers
349 views

Lens selection for a trip to Scotland?

In a few months I'll be going to Scotland for a holiday (highlands and so on). So far, along with my 550D I have the standard kit lens 18-55mm, and I have recently bought the 55-250mm II. I am ...
1
vote
2answers
2k views

Which lens should I buy Canon EF-S18-200mm f/3.5-5.6 IS Lens (Super Zoom Lens) or Tamron AF 18-200mm F/3.5-6.3 XR Di-II LD Aspherical (IF)?

I am planning to buy a somewhat generic lens for all purpose. I am mostly into group pictures, potraits & candid shots. I found Canon EF-S18-200mm f/3.5-5.6 IS Lens (Super Zoom Lens) suits a lot ...
2
votes
1answer
445 views

Shift bellow for (canon) DSLR

I would like to know if there is any (reasonably priced) bellow to shift lenses for DSLR (preferably canon) using the same brand lenses. It seems something hard to find, even if I guess it would be ...
2
votes
1answer
313 views

Are there any sample images out there taken with ND filter and the Sigma 8-16mm lens?

I am deciding on getting an ultra-wide lens mostly because a lot of my shots are taken at 17mm and it's often not wide enough. I narrowed it down to either the Sigma 10-20mm or Sigma 8-16mm. (APS-C) ...
1
vote
5answers
906 views

Cannon EOS 550D, Which lens should I purchase [duplicate]

Possible Duplicate: Which would be more suitable lens in terms of utility, weight, price: 18-135 or 18-55 + 55-200? I am going to purchase my first DSLR which is Cannon EOS 550D. The seller ...
2
votes
3answers
394 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 ...
1
vote
1answer
513 views

What is cheapest way to get a 10-20× zoom range on a Nikon D5100? [duplicate]

Possible Duplicate: How do I decide on a camera/lens with high zoom range? There are a lot of relatively cheap ~ 300$ (with body) consumer cameras with mega-zoom features — i.e. lenses with ...
3
votes
1answer
942 views

Why would the Canon EF-S 55-250 IS II be cheaper than the first version?

I was about to order the Canon EFS 55-250mm f/4.0-5.6 IS Telephoto Zoom Lens from Amazon, when I learned about the difference between a Grey Market / Imported versions. Not only that, I saw that there ...
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 ...
1
vote
1answer
793 views

Would these lenses fit my future Nikon D7000?

I am in the progress of choosing my new equipment. First of all I have picked the Nikon D7000, it seems like a very nice camera, and it is not that expensive. I could go Full-Frame but seeing the ...
6
votes
1answer
1k views

How to use IR index on Canon EF 24-105mm F/4 L USM

I know that the little red numbers under the distance scale are Infrared Index. According to the lens's manual, you should use these numbers when you do infrared photography. However I don't ...
1
vote
2answers
458 views

What is the sound that I'm hearing from Canon EF 24-105mm F/4 L lens?

I've a Canon 600D with Canon EF 25-105mm F/4 USM L lens. When I half press the shutter I can hear the US motor sound trying to focus on my subject, however I hear another sound, it's lower than the ...
13
votes
1answer
257 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 ...
4
votes
1answer
121 views

Is it necessary to lock the tilt and shift movements for each shot?

The Canon TS-E 17mm F/4 has large knobs for shifting and tilting the lens plus small knobs on the opposite side of the lens for locking the shift and tilt movements. It's already tedious to setup ...
2
votes
3answers
387 views

Better 10-22mm lens for Canon

The famous Canon 10-22mm lens is quite well-built. The image is sharp near the corners, and it has a fast auto-focus system. But unfortunately, it's aperture is relatively narrow... Would there be ...