Nidelva river through Trondheim Norway

Nidelva river through Trondheim Norway
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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
votes
2answers
733 views

What's the difference between a wide angle lens and a landscape lens?

Question pretty much says it all. Seems like when I look around people are asking "what's the best wide angle lens for landscape?", but on sites like LensHero they categorize wide angle and landscape ...
12
votes
3answers
1k views

Lightroom Upgrade vs Lens Metadata

Adobe Photoshop Lightroom 4 supports new lenses compared to earlier versions. I was hoping that it would change some of my lenses from 'Unknown Lens' to a specific model, but it did not. Synchronizing ...
4
votes
1answer
373 views

Is it possible to protect a bulbous lens while shooting?

The Canon TS-E 17mm F/4 has a bulbous front element which protrudes from the lens barrel. This requires a special lens cap which I place diligently while not shooting but there is no head and even no ...
6
votes
5answers
916 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 ...
4
votes
4answers
3k views

How can I make close-by objects appear as if they were much bigger?

We all know the popular Tilt Shift technique that gives objects a "miniature" look, making them appear much smaller than they actually are. I'm wondering whether it's possible to achieve the opposite ...
-3
votes
1answer
2k views
4
votes
2answers
493 views

What would be a good all-round lens for the London Olympics 2012?

I was lucky enough to get London Olympics 2012 tickets to the Volleyball, Hockey and Table Tennis The Hockey and Volleyball will be outdoors and the Table tennis will be indoors. I have seen the ...
3
votes
3answers
3k views

Walkabout: Canon EF-S 17-55mm f/2.8 IS vs EF 24-70mm f/2.8 L I & II

I have a Canon 7D with the following lenses: EF-S 10-22mm f/3.5-4.5 EF 50mm f/1.4 EF 100mm f/2.8 L IS Macro I'm planning on buying a zoom lens suitable as a general walkabout, for use on my ...
3
votes
7answers
10k 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 ...
2
votes
1answer
1k 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
5k views

What are the differences between the Canon EF 70-200mm f/2.8L IS II USM lens and the one that isn't IS II?

On Amazon, the Canon EF 70-200mm f/2.8L IS II USM Telephoto Zoom Lens for Canon SLR Cameras is $2500 whereas the Canon EF 70-200mm f/2.8L USM Telephoto Zoom Lens for Canon SLR Cameras is a mere $1400. ...
9
votes
3answers
3k views

Why is the Nikon 70-300mm f/4.5-5.6G ED IF AF-S VR twice as costly as Nikon 55-300mm f/4.5-5.6G ED VR AF-S DX?

The Nikon 70-300mm f/4.5-5.6G ED IF AF-S VR is almost twice as costly as Nikon 55-300mm f/4.5-5.6G ED VR AF-S DX. Why is that so? The only difference I see is the internal Focus. If that ignored are ...
5
votes
4answers
4k views

How do Canon EF 100mm f/2.8 and EF-S 60mm f/2.8 macro lenses compare?

I've read over a few of the macro posts on this site, and I'm very new to digital photography, so I have a few questions, and some may be overlapping. I have a Canon EOS Rebel T3, and I want to buy a ...
4
votes
2answers
65k views

What's the difference between the lenses EF-S 18-55 DC III and EF-S 18-55 IS II?

I'm planning on purchasing a Canon 1100D with an image stabilized lens. However, I've found two offers with different lenses. Can you explain to me the difference? Canon EOS 1100D + EF-S 18-55 IS ...
2
votes
4answers
4k views

What lenses should I take with my Nikon D5100 for a trip through China and Nepal?

I'll be travelling through China/Nepal this coming September and have been trying to figure out which lenses would suit me best during my trip. I'll be visiting many temples/ monasteries and many ...
1
vote
6answers
475 views

What are some artistic techniques that can be performed with lenses?

I have recently been attempting to perform various different techniques for taking pictures, like using a tilt-shift lens, freelensing, HDR photography, and a couple others. The styles that I want to ...
18
votes
2answers
1k views

Do rounded edges on aperture blades improve image sharpness, and how?

In the description for the XF lenses for its new X-Pro system, Fujifilm crows: The [XF lenses] all offer precise control over depth-of-field and deliver excellent out-of-focus bokeh thanks to the ...
2
votes
1answer
13k views

Image Quality of Canon 18-135 IS compared to 28-135 IS USM?

I have the Canon 28-135 IS USM lens and I am pondering replacing it with the newer 18-135. I know I'll be giving up the USM and FTM focus and gaining 10mm on the wide end (replacing my old kit ...
2
votes
2answers
550 views

What is the difference between these similarly-named Canon macro lenses?

I'm looking to buy a macro lens but I'm unsure which one is best since the names are very similar. Other than the price, what is the difference between the Canon EF 100mm F2.8 L Macro IS USM and ...
7
votes
3answers
234 views

Why is the amount of light a lens lets in called the 'lens speed'?

It seems very counter intuitive that the amount of light let in by a lens is referred to as the lens speed. This term confused me for a while because I couldn't logically see how a speed would be ...
4
votes
5answers
322 views

Apart from birds/wildlife and sports what are some “artistic” uses for telephoto lenses?

I mean no offence to birders and sports shooters, but I don't practice those types of photography. So what other types/styles of shooting can be done with long (200-300mm+) lenses, other than the ...
7
votes
2answers
3k views

What does “N stops” mean when describing an image stabilizer?

If you ever purchased any lens with IS then you have heard this term like "3 Stop Stabilization" or "4 Stop Stabilization". Now, I am familiar with this Stop for ISO and Aperture. But this I don't ...
6
votes
3answers
4k views

What are “Depth of field and focus scales”?

I'm reading Kurt Munger's review of SAL75300 (Sony's 75-300mm F/4.5-5.6 lens) and I noticed the entry "Depth of field and focus scales? Nothing" in his summary table. Now, I know what depth of field ...
3
votes
5answers
1k views

Which lenses should I take on a honeymoon trip to Alaska?

Newbie photographer here and really hoping for some expert advice! I go to Alaska on honeymoon in July and really need some advice on lenses. My camera is the Canon EOS 1100D (told you I was a ...
7
votes
4answers
1k views

Where can I get an extension tube for micro-four-thirds lenses?

There doesn't seem to be any extension tube set listed on the m4/3 section of the Four Thirds website. Olympus makes the EX-25 extension tube but it's for regular Four Thirds lenses. I would like to ...
2
votes
5answers
5k views

Sigma 150-500 f/5-6.3 vs Sigma 50-500 f/4-6.3 for birds in flight?

Finally made the decision to buy a Canon 7D for my wife. Her photography is continually improving. Flying bird and distance photography with her existing canon EOS 450D and 70 -300 lens. Can someone ...
10
votes
9answers
28k views

What lenses are must-have yet affordable for a Canon T2i camera?

I have a canon T2i camera. I am beginner looking for some tips on the best lenses to carry around.
3
votes
1answer
1k views

Panasonic GF3 with 14mm pancake lens - which macro lens will fit?

I wonder if anyone can advise me? I have the panasonic gf3 with a 14mm lens. Is there a macro conversion lens I can buy (apart from the new panasonic one) - haven't had one before and so wanted ...
8
votes
2answers
5k views

What does “Non-Mfg Zoom Lens” mean?

When I was surfing keh I found "Non-Mfg Zoom Lenses" and "Non-Mfg Fixed Focal Length Lenses"? What is the meaning of "Non-Mfg"?
16
votes
2answers
4k views

What is the benefit of an internal focus lens?

The "IF" in Pentax DA★ 200mm f/2.8 ED (IF) SDM stands for "Internal Focus". I know what this means: the lens doesn't change in size as I focus. (And it's true; it doesn't.) What's the point of this, ...
13
votes
3answers
4k views

What is the reference point that the focal length of a lens is calculated from?

I understand the idea of a focal length for a single lens, i e the distance from the lens to the point at which parallel rays of light converge. However, in the case of a photographic lens with ...
1
vote
1answer
332 views

Can a lens's bokeh be predicted by reading an MTF chart?

I've heard people say that everything meaningful about a lens's optical performance can be determined simply by looking at the MTF charts — although nothing is mentioned of that under How do I ...
4
votes
2answers
1k views

How to clean a circular polarizing filter filter?

Having some problems here guys. I have a 67mm Marumi CPL, which I have used for quite a long time. I keep it clean with a blower and some microfiber. However, until yesterday, I didn't notice some ...
33
votes
2answers
3k views

Why no zoom lenses below f/2.8?

I can understand that a zoom below f/2.8 would be difficult and costly, but it seems like something pros would kill for. Surely it can't be more expensive (if its possible) than some of the $10k+ ...
0
votes
5answers
3k views

Good all-round lens for Canon XS/1000D? Is 24-105mm F4.0 IS USM a good upgrade?

I've been using my 1000D for 2 years now with the kit 18-55mm lens and for about a year now I've got it a bigger brother, a 55-250mm F4.0 IS lens, with the latter being on my body most of the time. ...
4
votes
4answers
12k views

What is the DT series of Sony lenses?

Among the Sony lenses there are some types with a DT abbreviation and some are without it. Those having DT called DT-series. What does DT mean? What is the difference between DT-series lenses and ...
5
votes
1answer
318 views

When setting up a 3D DSLR rig, what lenses would provide the best results?

I'm currently exploring the idea of setting up a 3D rig based on this question. I know I need two cameras, some sort of twin camera mount, a way to trigger both cameras at once and software to put ...
3
votes
3answers
188 views

Can knowledge and preparation offset the need for longer lenses in wildlife photography?

One of the biggest barriers to wildlife photography as I see it is the requirement for fast, long expensive lenses. I have in the past used a teleconverter to get my 300mm lens up to 600mm but even ...
8
votes
2answers
979 views

How can a telephoto lens take great landscape photos?

I've read in various answers on this site people mention that telephoto lens can be used quite nicely for taking landscape photos. How is this possible, as my (beginners') understanding of landscape ...
4
votes
1answer
366 views

What is the camera's influence on lenses' optical properties?

I installed my 50mm f/1.4 Nikon lens on my Olympus E-P1. I notice some properties of the lens changed — namely, magnification and DoF both increased. I understand magnification increases because of ...
2
votes
3answers
875 views

Is it worth getting third-party warranties on lenses?

I've just taken the plunge & ordered a refurbished Canon EF-S 17-55 f/2.8 lens. Refurbished & on sale, it's still expensive -- about as much as my T1i + other lenses put together! I think my ...
4
votes
3answers
7k views

How can I calculate vertical field of view from horizontal field of view?

I have an Axis M1011 (specs available here), which I need to find the vertical field of view. The online specifications tell me the horizontal field of view is 47 degrees, and the image size is ...
1
vote
3answers
690 views

How can I clean a camera effectively?

My camera lenses are getting particles and such on them, and whenever I take very close up (Macro) Picture, I can see these particles on the image. There are also fingerprints on the LCD screen. There ...
7
votes
4answers
463 views

How do I clean the external forward-facing glass on my lens?

How do I clean the external forward-facing glass on my lens? Over the last year or so of use it has accumulated a little dust and a translucent smear mark. Nothing serious, but I'd like to remove ...
1
vote
2answers
568 views

What lens do I need to do product photography with my Olympus E500?

I have an Olympus E500 camera passed onto my by my father in law and since fallen in love with photography. I now have a client who is requesting a product shoot of some of his products and I would ...
3
votes
1answer
149 views

Why does an aperture crop the image when you look through a lens itself but not when you look through the viewfinder?

I have been studying lenses for two days now and the aperture is very confusing. Based on the question here it appears that the aperture should not crop the image at all but when I look through a lens ...
-6
votes
6answers
2k views

What lens should I get next to start professional photography? [closed]

let me start by saying I am venturing further into the photography world and will like to start making money out of my 'expensive' hobby if I can. As such is the reasoning for my questions. Money is ...
3
votes
5answers
27k views

Best image quality non-prime walk around lens for travelling with a Canon crop dSLR?

If money where no object what is the best quality non-prime walk around lens to pair with a crop sensor Canon dSLR for travelling? From what i have read so far a lot of people recommend the Canon ...
0
votes
2answers
924 views

Is focal range the only significant difference between Canon's EF-S 18-135 IS and 18-200 IS lenses?

Is there any difference in performance (other than focal range) between Canon's EF-S 18-135 IS and 18-200 IS kit lenses, in terms of sharpness, contrast, AF speed, or anything else? I can't decide ...
4
votes
1answer
980 views

Is there any downloadable Photoshop CS5 Lens Profile for iPhone (3GS)?

Either user- or Adobe-created, is there any downloadable lens profile for iPhone (3GS) cameras for Photoshop, for use with Lens Correction?