Napioa - Wind Origins

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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3
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3answers
11k views

Why is my Nikon lens suddenly extremely dark?

I was going to take pictures of my daughter at the race track, and when I put my lens on my camera (as I have done several times before) this time it was very dark and didn't seem to work properly. I ...
0
votes
1answer
393 views

Why doesn't my Sigma lens autofocus if the subject is initially way out-of-focus?

I have a Sigma 150mm F2.8 EX DG OS HSM APO Macro lens mounted on my Canon 6D. Even if AF mode is set to minimum-to-infinity range, if my subject is way out of focus (too far or too near), like, say, ...
17
votes
3answers
1k views

Why don't cameras have autofocus points in the edges and corners?

On all the DSLRs I've used, there are never any autofocus points near the edges and corners. Why is that?
8
votes
7answers
3k views

Which lenses are best for macro and for birdwatching (both Canon and Nikon)?

Now I have old Sony A100 DSLR + Minolta AF 24-50/4, Minolta AF 50/1.6, Tokina ATX 80-400/4.5-5.6, ... My camera is old. In near future I am going to buy new DSLR. I think it will be Canon or Nikon. I ...
12
votes
4answers
933 views

Other than speed and weight, what advantages might a prime lens have over a zoom at the same focal length?

At the same focal length, apart from speed and maybe weight, what other advantages does a prime lens like the 50mm have over a zoom lens like the 24 - 70mm? To put it better, If I set my 24-70mm lens ...
0
votes
2answers
155 views

Why human eye doesn't exhibit aberrations?

Eye's optical system is composed of single lens and is capable of producing very sharp results, but if I use single lens (monocle) with my camera I'll get soft image.
3
votes
2answers
7k views

Can a drop of a camera+lens cause AF calibration issues on either — or both — the lens and the body? What are the mechanics involved here?

My question is, if you drop a camera, and you think you might have an AF issue, what are the mechanics involved that might cause a mis-calibration? I can imagine that the lens has movable parts -- ...
19
votes
10answers
8k views

Why don't more people use fisheye lenses as a cheap wide angle lens?

From my understanding, a fisheye lens usually has a coverage of 180 degrees or close to it. Given the extreme coverage and the availability of software that can turn fisheye images back to a ...
0
votes
1answer
3k views

Looking for suggestions for an wide angle lens for Nikon FX [duplicate]

I recently upgraded to full frame by getting a Nikon D600. I would like to know what would be an ideal wide angle Lens for this FX camera of mine. Nikon wide angle lenses are very expensive, so I ...
10
votes
6answers
3k views

How to select lenses for sports photography?

I would like to get into sports photography, and would probably want a better telephoto lens so I can get better close up shots. What other factors should I keep in mind as I make my choice? Does IS ...
9
votes
3answers
3k views

Mark I vs Mark II Canon L Lenses

Are there any Canon L lenses in which one iteration was significantly better than the other? The price for older Canon L lenses are significantly cheaper than mark II lenses and I was wondering if it ...
0
votes
2answers
249 views
0
votes
1answer
107 views

Exact specification of N1-CL1 Nikon Closeup lens

On nikon site (and everywhere else) I've been unable to find any exact specification of tne N1-CL1 filter lens -- only thing I need is to know the exact focal distance of this lens (or dioptres, or ...
3
votes
6answers
673 views

What equipment should two very amateur photographers bring on a very short safari?

My girlfriend and I will be going on a 3 day/2 night safari in Kenya (Masai Mara). I'm looking for an inexpensive way to upgrade our equipment in the best way possible. We know next-to-nothing about ...
0
votes
1answer
2k views

Camera and lens for shooting furniture

I have to buy a camera to shoot high quality photos of furniture. The furniture will be both indoors and outdoors. What kind of lenses do I need? I was considering a Nikon D3200 or a D5200 for the ...
1
vote
2answers
210 views

What causes the image in the view finder to tilt when using manual focus with my Canon 18-135 IS lens?

I'm having the exact same problem as this guy is having:http://forums.usa.canon.com/t5/Lenses/Canon-18-135mm-IS-Lens-Jumps-during-manual-focus/td-p/44493 Problem description: I'm having a problem ...
0
votes
2answers
270 views

Is a Sigma AF 28-80 an useful addition to a Nikkor 35-105 macro?

I'm experimenting with photography and I'm on a budget: I'm using a Nikon D70 and I already have a Nikkor AF 35-105 f/3.5-4.5 macro and a 50 mm f/1.8 E (manual focus). Now I found a cheap Sigma AF ...
2
votes
3answers
2k views

Is 50-200mm (APS-C) a good zoom range for a single lens for people, buildings, and distant objects?

Assuming I do want to take pictures of things like people, buildings and things further away, but not too far away. Does it sound reasonable to buy a 50-200 mm lens, when just considering the distance ...
1
vote
1answer
96 views

How come AF changes the way my flash works?

When I select AF instead of M on my 55-135 canon IS Lens, mounted on my Canon 700D, the flash sort of pops before I finish pressing the button and then again after I press it and it makes this scary ...
2
votes
2answers
714 views

What does the aperture range in a lens name mean?

Regarding lens descriptions, what does the relationship between aperture range f/3.5-6.3 and focal length range 18-270mm mean? How does this work?
1
vote
1answer
3k views

Effective zoom of Sony 55-210 lens (e-mount for NEX series camera) [duplicate]

According to Sony's website this lens has a zoom factor of 3.8. I currently have an 18-55 lens that came with my NEX-3F that has a zoom factor of ~3.1. Since the 55-210 pics up where the 18-55 leaves ...
1
vote
1answer
528 views

What can I do about Pentax superzoom 18-270 autofocus problems?

I use a Pentax K200 and have been satisfied with the original Pentax 18-250 superzoom, for travelling, outdoors, family types of use. However the autofocus gradually failed, the motor going to and fro ...
0
votes
2answers
286 views

Canon PowerShot sx500IS filter size

What is the filter size of the fixed 30xIS Canon Zoom Lens found on the PowerShot SX55IS?
0
votes
1answer
220 views

Is this attempt to make lens measurements and focal lengths more intuitive correct?

I know next to nothing about cameras (other than how to push the shutter button). Up until a few days ago I thought of zoom as simply a multiple (e.g. my Canon S95 has 3 or 5X optical zoom) and had ...
2
votes
1answer
371 views

What are the distinquishing features of 50mm prime lenses for Sony?

I have a Sony SLT A58 and the standard 18-55mm zoom, and am thinking to go for a 50mm prime — but I am not sure which is the best one for me. Are there other manufacturers besides Sony which develop ...
20
votes
4answers
5k views

Is it true that there are no stabilized prime lenses (and if so, why)?

Fast prime lenses like the Canon 50mm f/1.4 lens work nicely in low-light situations. But I'm quite sure they would work even more nicely if they had optical image stabilizers. It seems to me that no ...
2
votes
1answer
535 views

Why do 3rd party lenses have compatibility issues?

I actually have 3 questions, related to this topic: 1) Do third party manufacturers like Sigma/Tamron/Tokina license the right to develop for Nikon/Canon mounts? I've heard people say they do, and ...
3
votes
3answers
1k views

What is the best techniques to photograph large rugs?

I am trying to take pictures of small and large rugs. I have Canon 6D with 24-70mm lens. Could you please suggest the best way for mounting the camera to the ceiling, and any other recommendations for ...
3
votes
2answers
1k views

Can lens coating be reapplied?

If the lens coating is torn or worn of by extended use, is it possible to reapply it? I don't mean a do it yourself repair, but rather a repair performed by the manufacturer. It also may very well not ...
3
votes
4answers
3k views

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

I know nothing about any of this. From my research, Canon's 70D looks like a good camera body for a retired (31 years) professional photographer (my dad) to "pick the camera back up" in the digital ...
0
votes
2answers
1k views

EF vs EF-S for a Canon 70D body? [duplicate]

Stretching my budget for a new 70D body. Seems to be exactly what I'm looking for. Am I wasting my money only purchasing an EF lens to go with it? The EF-S is well out of my price range.
0
votes
2answers
3k views

Capturing astro photography with D7100

I just bought a Nikon D7100, with the basic kit lens 18-105mm. I was wondering, if I can capture stars or milky way with it. Will the answer to this question work for me? As it says 24mm on f/2. Also ...
3
votes
1answer
421 views

Was the background blur in this image done with a Petzval lens?

I am interested to know how the background blur in this image was done. Is it a petzval lens?
29
votes
11answers
2k views

Will a tilt-shift lens solve my 'leaning building' shots?

I shoot primarily with a Nikon D300, and that's not likely to change soon. The camera does everything I need it to do, but this. I also use a 17-55 lens, which I know that Thom castigates as being ...
1
vote
2answers
461 views

Baby photo shoot lens selection

I am planning on doing a homemade baby photography for a 3-week-old baby (my daughter :)). I count on a Nikon D40 (I know, need to upgrade!) and 2 lenses: 18-105mm and a fixed 50mm f1.8. Which lens ...
2
votes
1answer
1k views

How do you find the nodal point of a lens?

When shooting a panorama, rotating the camera & lens about the nodal point of the lens is expected to produce higher-quality images (in the sense that they match better at the edges) -- hence the ...
-1
votes
1answer
5k views

How does the Sony SEL 16mm F2.8 compare to the 20mm F2.8? [closed]

I want to get a pancake lens for my NEX. Which lens would you recommend in terms of picture quality?
1
vote
2answers
164 views

Can I use these old lenses from DVT vision systems on modern cameras?

I have a bunch of old Tamron lenses (12mm, 25mm, 50mm, 75mm, etc) that were used on old vision systems (DVT Cameras). These systems are now obsolete and the cameras / lenses are being disposed of. Is ...
-1
votes
3answers
1k views

What is the cheapest Macro lens I could get for my Canon 600 D? [closed]

I have Canon 600D and want to buy the cheapest and best Macro Lens. Which would be the best and cheapest lens for Macro photography? Please help! Thanks!
1
vote
3answers
6k views

DSLR Lens For Close Range Full Body Shots

I have a Nikon D800 and a 70-120mm zoom lens and a 105mm macro lens. I am doing portrait photography and I want to be able to take photos at close range (just a few feet away) while still capturing ...
2
votes
2answers
4k views

How does lens-hoods for pancake lenses work? (Canon EF 40mm with ES-52)

Normally I use lens-hoods on every of my glasses (flairlight blocker, lens protection). Some days ago a bought the Canon EF 40mm STM (Pancake-Lens). So I look for the fitting lens-hood and found the ...
2
votes
2answers
665 views

Is there a digital body that will let me use analog Zeiss T* MM lenses lenses from a Contax 167MT?

Is there a digital body that will let me use analog Zeiss lenses from a Contax 167MT? They are T* MM lenses. Will all adaptors produce the same focus issues?
0
votes
3answers
201 views

As a photography beginner, should I spend more on a lens or settle for a low end model? [duplicate]

I'm new to photography. I'm looking at getting a mirrorless Olympus camera, and am at present selecting the lens to accompany it. There is a good deal available on a package including a camera body + ...
3
votes
1answer
441 views

Which terms accurately describe the lens mount on a Canon 7?

I've gotten a used Canon Model 7 rangefinder camera from my grandfather. I'm given to understand that it's a reasonably cool old camera, and the 50mm/1.4 lens isn't too shabby either. I am ...
8
votes
4answers
2k views

Is a 50mm f/1.8 or 50mm f/1.4 a good lens for portraits in low light?

I only have one lens right now. It's the Canon 18-200mm f/3.5-5.6 IS kit lens. I think this lens is great when the lighting conditions are right but in low light I usually have to resort to flash. ...
3
votes
5answers
1k views

Will there be any difference in photos taken using full frame and crop lenses on a crop camera?

I see a lot of questions comparing full frame (e.g EF for Canon, FX for Nikon) and crop lenses (e.g. EF-S for Canon, DX for Nikon) but I can't find the answer to what would be the differences between ...
3
votes
3answers
5k views

What kind of lens do I need for low-light portraits for an Nikon D5100 camera?

I just bought a Nikon D5100 kit with 18-55mm lens. I am now looking for a good portrait lens that should be good in low light conditions. I was thinking about buying Nikkor 1.8d 50mm or Nikkor 1.8G ...
4
votes
2answers
3k views

How can I compare the lens serial number from the EXIF of a picture, to the serial on my lens?

I have a Canon EOS 85mm f/1.2 L II lens. I sold it to someone, they claim it was broken and sent it back. I am trying to prove that the lens I sent to them, is not the one they returned. From ...
1
vote
1answer
402 views

Why do I see different focuspoint in my DSLR's viewfinder and screen with old lenses?

I've had an old completely analog Praktika SLR with a set of lenses for a few years now. The camera and lenses are still quite good but I wanted to go digital. Having recently acquired a Nikon D5200, ...
2
votes
1answer
426 views

What is the purpose of the small meter behind window on a lens?

I'll buy a zoom lens for my Nikon D5100 Either the 55-300 VR or the 70-300 VR But on the site I saw this meter (sorry, I don't know the name of this meter) on the Nikon 70-300 VR lens and have seen ...