Napioa - Wind Origins

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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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How do I choose a zoom lens for my Canon DSLR when I'm ready to move beyond the kit lens?

I am using Canon 500D with the kit lens (18-55). I think I have done enough with 18-55 and want to try out next lens. I have already decided to purchase 50mm prime. I also wanted to get a Zoom lens. ...
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4answers
3k views

Best all-around ~$600 standard zoom lens for Canon? [closed]

I have a Rebel T2i, I was wondering what standard zoom lens is the best around $600. I'm mainly shooting landscapes / cities / peoples. I've done some research and came up with 17-50, 18-55 from ...
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1answer
862 views

Olympus T2 Adapter ring stuck on my Sony Alpha — how can I get it unstuck?

Edited. I bought a Samyang 500mm Mirror lens off ebay so that i could try and expirement with tele photos before i decided to buy really expensive lenses.. I got the lens with a T2 Adapter (Olympus) ...
4
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2answers
1k views

Are there reasons beyond weight and price to choose the Olympus 40-150mm over the 14-150mm?

I'm curious whether there is any advantage in buying the 40-150 vs. the 14-150 lens. Both are f/4.0-5.6 and quality seems to be the same. Is there any reason except weight and price for which one ...
44
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7answers
184k views

How do I convert lens focal length (mm) to x-times optical zoom?

What is the rule to convert the 'mm' notation to the 'optical zoom' notation? I searched a bit and found this one: optical zoom = maximum focal length / minimum focal length For example a 18-55mm ...
5
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2answers
1k views

What's the base f-stop when counting an ideal f-stop for lens?

I've read a lot around this site that an ideal quality of the lens is achieved when using f-stop roughly 2 stops slower than the fastest value of the lens. Firstly, I'm not exactly sure what "2 ...
0
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6answers
306 views

Help me with information to take a lens purchase decision

After quite a time I have made my mind to buy a DSLR and I am thinking for Canon 550D. Though question is long I could not find way to shorten this. As a starter I would like to stick and learn with ...
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5answers
5k views

What is a portrait lens?

I hear this term used pretty often. Does it refer to a specific focal length? Or very low F-number? What does a lens need to have in order to be considered "portrait lens"?
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12answers
34k views

How do I get a stuck screw filter off of my lens?

There is a UV-filter screwed on my Canon 16-35mm. For some reason, I'm not able to get it off the lens. Does anyone has a simple but safe trick?
24
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4answers
4k views

What is a “fast” lens?

I've been reading lots of camera reviews lately and have ran across several references to "fast" lenses. What exactly is a fast lens and what are its advantages compared to other lenses?
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2answers
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If I have a 28mm f/1.8 lens (on a crop body), do I still need the 50mm f/1.4?

I have the Canon 60D and a Canon 400D (my original camera). I have two lenses a Sigma 50mm 1.4 HSM and a Canon 28mm 1.8 USM. Both lenses are incredible performers. I've noticed the bokeh I receive on ...
9
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1answer
647 views

Does the image stabilizer on Canon lenses decrease the overall image quality?

When I'm shooting hand-held during the day, when the light is strong enough for the camera to shoot at 1/2000 and slower (therefore the image stabilizer should be useless, right?), should I disable ...
16
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10answers
36k views

Which prime lens for Pentax APS-C?

My girlfriend is buying a Pentax K-5 (I already have a Pentax DSLR so we thought it made sense for us to be able to share lenses), and she's not sure about which lens to get with it, so I've been ...
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2answers
847 views

Can I configure the D7000 to perform lens distortion corrections on the embedded JPEG in the RAWs it saves?

Lightroom eats the distortion present in the D7000's kit lens for lunch. However, it's time consuming to check which photos I like by performing this correction on all the photos in lightroom first. ...
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3answers
1k views

Is pincushion or barrel distortion really all that bad in a lens?

Given that software can pretty trivially fix pincushion and barrel distortion patterns if you're shooting in RAW (Lightroom did the right thing just by knowing what lens I used with the given EXIF ...
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6answers
5k views

What is a good lower-cost alternative for the Nikon 85mm f/1.4 lens?

I have a Nikon D7000. The 85mm f/1.4 looks pretty awesome, but I don't have the money for it. What's a good alternative that won't break my bank? I'm open to other brands. I have the 85mm f/3.5 ...
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4answers
1k 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 ...
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2answers
2k views

AF-D vs AF-G: is the aperture ring necessary?

I just purchased a Nikon D7000 with an 18-105 f/3.5-5.6 AF-S lens. I'm also looking at purchasing a lens around the 200-300mm focal length range, and I found the 70-300mm f/4-5.6 AF lens. As far as I ...
0
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1answer
207 views

Can the camera be considered to the Human eye? [closed]

So mirrors make you look so big, and some mirrors don't. And they only thing that actually tells you your volume of you body, is the human eye! So, If i took a picture Would it show me, what other ...
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4answers
3k views

How does a lens affect the saturation of a picture?

In many reviews people describe how a lens can affect the saturation of a picture, especially when it comes down to a comparison of two similar lenses, e.g. 50mm 1.8 vs. 50mm 1.4 or something like ...
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2answers
553 views

Are there any depreciation schedules for canon lenses?

I am looking to purchase some used "L" series lenses for my Canon 60D. I am not exactly sure at which point it's no longer feasible to purchase a used lens over new. Surely even the best lenses must ...
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3answers
853 views

What type of lens should I get for an air show?

I went to an air show yesterday, I took a few nice pictures of the Red arrows which is great, but they look so far away, even smaller than by eye. I've got a Nikon D3000 with the kit lens. What type ...
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3answers
1k views

Portrait lens for Canon T1i [duplicate]

Possible Duplicate: What is a good Canon lens to take portraits? I have a Canon Rebel T1i camera. I am thinking of buying a Canon EF 50mm f/1.8 II lens for portraits. Is it the right lens ...
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4answers
2k views

What's the best lens for taking pictures of cakes?

What is the best lens to take pictures of cakes? My camera is a Nikon D300s.
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4answers
1k 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 ...
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9answers
3k views

Are all kit lenses poor? (And if so, why?)

Kerri Shotts says (emphasis mine): Also, if you already have great glass, there is little reason to get more (unless you need it for a certain reason). E.g., if you have a 70-200 f/4, don't rush ...
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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 ...
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2answers
2k views

Is it normal for there to be tiny dust particles in a new lens?

I'm the owner of a new Canon 550D with a Canon 18-135mm IS lens. While looking into the lens, I noticed what I think are two tiny dust particles (I would say smaller than 1mm) behind the first glass ...
2
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6answers
917 views

Is the IS of the Canon EF 100-400 4.5-5.6 L IS USM Telephoto Zoom worth the extra £200 over the Canon EF 400 f/5.6 L USM Lens? [duplicate]

Possible Duplicate: What size lens is recommended for flying bird photography? I am having trouble deciding which lens I should buy my wife to go with her new Canon 7D. She uses it mainly ...
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3answers
2k views

What can damage a lens?

I just bought a Canon dSLR camera with an 18-135mm IS lens. I really want to take care of it, as I paid extra for this "better" lens, so can the lens get, in some way, damaged if you drop it, say 5 ...
12
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1answer
14k views

What does the magnification ratio number mean on a macro lens?

I'm looking for a macro lens. I have 28-105mm Nikkor which gives me "1:2 Magnification Ratio" (whatever that means). I found another lens, Tamron 90mm Macro, which has magnification ratio of 1:1. ...
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4answers
2k views

Where can I rent a camera and lens online within the US? [closed]

I'm considering buying a Canon 5D Mark II camera with Canon EF 24-70mm f/2.8 L USM Lens. But before I buy, I would like to rent it to try it out. Where can I rent camera gear online, and have it ...
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4answers
4k views

What are the advantages of a lens having a fixed maximum aperture?

What are the advantages of a lens having a Fixed Maximum Aperture? Previous answers have indicated that "pros tend to want constant apertures in zoom lenses". While in general lenses with a fixed ...
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1answer
2k 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 ...
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6answers
3k views

In what situations should I use which lenses while traveling to Paris?

I'll be travelling to Paris and I'll be bringing me with a Canon T2i/550D, a Canon EF-S 18-200mm f/3,5-5,6 IS and a Tokina 11-16mm f/2,8 (I could also bring a Canon EF 50mm f/1,8 II). I bought the ...
5
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2answers
1k views

Is there a Tamron 70-200mm lens which is optically superior to the Canon 70-200 f2.8 IS?

In the June 2011's Popular Photography magazine (Canada, hard copy, pg. 90) in an article titled "Star Power", on a one page overview of the Canon 70-200mm f2.8L IS II USM, the author (Julia Silber) ...
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5answers
2k views

How do I find the aperture that produces the highest-quality images for a given lens?

I'm not talking about large aperture (f/1.8, f/2.8...), rather, about small apertures (f/18, f/20, f/23...). I read somewhere (actually I think it was on this site, but I don't exactly remember which ...
2
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2answers
728 views

Is Nikon AF 70-300/4.0-5.6 G Black Nikkor Lens compatible with Nikon D80?

I'm looking at the Nikon AF 70-300/4.0-5.6 G Black Nikkor Lens, and that page says that it's not compatible with Nikon D40, D40x, D60 and D5000. I'm not sure - would it work with my D80?
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2answers
1k views

Do adapters exist for old lenses to Canon's DSLR mount?

I currently have a Canon 20D and happened to find a few old lenses. Are there any adapters that can work for these lenses? I unfortunately haven't been able to find anything. The old lenses I have ...
2
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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 ...
7
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4answers
68k views

How do I decide between the Canon 55-250mm or 70-300mm + 50mm?

I just bought a Canon Rebel T2i (EOS550D/Kissx4) with 18-55mm kit-lens and I have an additional $300 USD to spend on a lens. I had decided to buy a Canon EF-S 75-300mm f/4-5.6 (without IS) and a Canon ...
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1answer
8k views

Sony 18-250 or new Tamron 18-270 lens? Which has better autofocus?

I want to buy either Sony 18-250 F3.5-6.3 or the new Tamron 18-270 F3.5-6.3 as a travel lens for Sony A55. I have found good reviews that told me quite something about image quality of these lens. ...
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3answers
1k views

Does my L lens need UV filtering, or does it already cut out UV?

Now I know the "should my expensive lens have cheap glass on the front?" is an age old question that will never be agreed upon and ends up down to preference. What I'm interested in is the UV vs ...
3
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3answers
7k views

“One size fits all lens” for Sony and Nikon, or a Nikon lens plus adapter?

I've been taking photos with the supplied kit lens with my Sony Alpha 200 for the last couple of years. I'm looking at changing the body to a Nikon D7000 at some point in the future and I'm also ...
3
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3answers
1k views

Why do some cameras have a blue lens shown in their photographs?

For example, from this Google search the middle camera is way more blue in color than the others. What is the reason behind this? Do these cameras have some special type of glass that results in ...
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1answer
298 views

Can the Sony A55 software-correct lens aberrations like the Panasonic GH2 does?

Panasonic GH2 automatically corrects lens geometric distortion and chromatic aberration. If I understand it right, it always applies this correction just after reading from the sensor — so the image ...
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3answers
5k views

How can I test a new lens to make sure it is operating correctly?

How can I test a new lens to make sure it is operating correctly? I found two similar questions with answers specific to things such as sharpness and focus, but I want to cover any and all possible ...
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4answers
2k views

What does the dot on some zoom lens scales mean?

I noticed on my Canon 18-55mm kit lens there is a dot on the zoom scale between 24 & 35mm (though skewed very much towards 24mm). This position appears to be the spot where the lens is physically ...
4
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1answer
365 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 ...
14
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4answers
950 views

Could my lens be damaged after being used as burning glass?

During a nice nature trip, sitting at a table with a bottle of wine, somehow we had the ridiculous idea to test a lens as burning glass (which performed quite well). After we went home I started ...