Antarctica

Antarctica
by ʇolɐǝz ǝɥʇ qoq

Submit your Photo
Hall of Fame

Please participate in Meta
and help us grow.

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.

learn more… | top users | synonyms (1)

4
votes
2answers
112 views

Are micro four thirds lenses fully interchangeable between brands?

I'm thinking about switching from DSLR to Micro 4/3, and I've found several brands of cameras and lenses, and I want to know if I buy a camera from a specific brand, will I be stuck to that brand ...
0
votes
2answers
87 views

Which is lens is better for concert photography, Canon 50mm f/1.8 STM or Tokina 11-16mm f/2.8?

I have a Canon 550D camera with 18-55mm kit lens and a Canon 50mm f/1.8 STM prime lens. I am looking for differences between the Canon 50mm f/1.8 STM and the Tokina 11-16mm f/2.8 wide angle lens, ...
1
vote
1answer
106 views

Sony A6000 blurry in peripherals despite sharp center — is this a mirrorless thing?

I used to have a mirrorless Sony Alpha A6000 camera. The problem I had with it was that, no matter how hard I tried to keep the center of my photos sharp, my photos always looked blurry in the ...
0
votes
3answers
64 views

What filter size and lens hoods do I need for my Nikon 18-55mm and 55-200mm lenses?

What size UV filter, lens hood, and lens cap do I need for my Nikon AF-S DX 18-55mm VR II and AF-S DX 55-200mm VR II lenses?
4
votes
1answer
611 views

What are STF lenses?

What are STF (smooth transition focus) lenses? How much do they differ from other fast lenses? What artistic techniques are done with them? For example Sony has an a-mount 135mm F2.8 [T4.5] STF. What ...
4
votes
1answer
114 views

Is there a difference in the image produced from a 50mm rangefinder or slr lens?

Particularly, I am interested in the performance on film for Canon leica thread mount (LTM) 50mm lenses versus their FL/FD SLR lenses, in aperture size 1.2/1.4/1.8. Their performance on full frame ...
0
votes
1answer
71 views

Nikon lens with an adapter vs Canon lens on a Canon body - image quality difference?

I recently bought a Rokinon 14mm f/2.8 lens for Canon off Amazon (india) during a sale, but I received a Nikon version of the same lens. Now Amazon India has a policy of only replacing items fulfilled ...
1
vote
0answers
44 views

Lens won't focus from distance on one camera body

I recently acquired an original Canon 300mm f/2.8 (the non-IS version) and have been testing it out on my two camera bodies. It seems to be exhibiting a weird behavior with regard to focusing. On my ...
0
votes
1answer
52 views

What Canon lens, besides my 50mm f/1.8, should I get for my first wedding shoot? [duplicate]

I am shooting my first wedding in September and I have a Canon rebel t3i with a 50 mm 1.8 and I am trying to find a good lens under $900 dollars for the wedding so I am not stuck with just one lens. ...
5
votes
2answers
135 views

What does lens resolution expressed in megapixels mean? [duplicate]

In this review of the Nikon D3300 w/ 18-55mm f/3.5-5.6G, Tony Northrup says that because the kit lens of Nikon D3300 is 9 mega pixel, you won't use all 24 mega pixel provided by the sensor. What is ...
0
votes
1answer
50 views

Mirror vs Lens: do either or both invert the image?

Answers to this other Question on photo stackexchange have prompted me to seek clarification on this. consider for example the following images: Original scene How a mirror "sees" it (flipped ...
4
votes
2answers
141 views

How many times is the image inverted inside a DSLR camera?

How many times is the image flipped (inverted) inside a standard Digital single lens reflex camera?
0
votes
2answers
62 views

Is Canon EF 16-35mm f/2.8L II USM better than EF 17-40mm f/4L USM on FF and in which cases?

According to Imaging Resource the 16-35mm f/2.8L II lens sharpness is subjectively worse than 17-40mm f/4L on full-frame. Here are the Blur diagrams for 16-35 and 17-40 on FF. So, analysing this, the ...
1
vote
2answers
94 views

Will stepping back and using an FX lens on a DX body get the same “look” as the same lens on an FX body?

Using 85mm as an example, how can I get the same "85mm look" (shot on a FX camera with an 85mm FX lens) on a DX camera with the same 85mm FX lens?? I know a 58mm FX lens (87mm DX equiv), shot from ...
2
votes
2answers
84 views

How does a manual lens know when to adjust the aperture?

When I look through a viewfinder before I take the photo, the lens is "wide open" - at its largest possible aperture (unless the depth of field preview is used). The aperture is adjusted to whatever I ...
1
vote
3answers
165 views

From a user perspective, is a stopped down variable aperture zoom lens equivalent to a constant aperture zoom lens?

Let's say that I have a 24-70 F3.5-4.8 variable aperture zoom lens. If I were to stop down that lens to 4.8, would it then be equivalent to a 24-70 F4.8 constant aperture zoom lens from a user ...
2
votes
3answers
76 views

Is the EF 85mm f/1.8 USM lens going to work for my Canon T5i for portraits?

I am new to the photography industry, and have my first engagement booking this upcoming month. I am planning on buying the Canon T5i body, and am wondering if the EF 85mm f/1.8 USM will fit and be a ...
1
vote
2answers
96 views

Does say a 35mm on an APS-C camera have the same facial/other deformations as a 35mm? [duplicate]

I am about to purchase a 35mm (Nikon 35mm F1.8 DX) for my APS-C camera, to get the equivalent of a 50mm lens. I want to use it for portraiture a bit, but I'm worried the facial deformations will ...
2
votes
1answer
64 views

Sigma HSM lens won't focus on Nikon D5300

I tried the Sigma 70-200mm 1:2.8 Macro HSM EX DG APO on my Nikon D5300 and it won't autofocus even though the lens is supposed to have a built-in motor. I've checked the camera settings to make sure ...
4
votes
3answers
696 views

What exactly “professional-grade” means in Nikon line of lenses?

I was researching a bit on Nikon 16-35mm f/4 lens. Both Nikon USA and India websites are silent about the build material of the lens barrel. There are a class of people, who either out of "frustration"...
2
votes
0answers
30 views

How to avoid focus reset when switching to MF on mechanical focus-ring lenses with Olympus E-M10 Mark II?

Usually when one switches from AF to MF on the vast majority of cameras, the focus distance stays distance it was before switching. This way one can use AF to set the focus distance and then switch to ...
3
votes
3answers
64 views

How do I get my Canon 70D to detect my Tokina AT-X 400mm lens?

I have recently purchased a used (but remarkable condition) Tokina AT-X 400mm f/5.6 with an EF mount. This works on my 6D, allowing for aperture and focus control from the body. However, my 70D ...
0
votes
2answers
95 views

How do I correctly convert from aperture diameter into f-stops?

I'd like to know whether it's possible to convert the radius of the focal point into f-stops properly. The following equation illustrates that the diameter is dependent on the f-stop: aperture ...
1
vote
2answers
73 views

Panasonic Lumix DMC-TZ55 freezes on shutter release

I bought a Panasonic Lumix DMC-TZ55 last year for my vacation to Florida. It is now out of warranty. It worked as expected before, during and for some time after my vacation. I experienced no issues ...
-6
votes
1answer
60 views

Widest f1.8 canon full frame lens?

What is the widest lens offered for canon (by any manufacturer) that has an aperture of 1.8 or lower?
1
vote
1answer
72 views

Binocular Cameras

I am from India and I would like to know if there is a binocular which uses binocular lenses as camera lenses to take pictures and show pictures live on eyepiece like Military grade binoculars we see ...
-2
votes
1answer
46 views

what B+W 77mm HTC Kaesemann Circular Polarizer with Multi-Resistant Coating by Schneider Optics [closed]

I have a Nikon D500 and wanted to purchase a 18-200mm lens to go on safari and wanted to purchase a circular polarizer filter for the lens, but do not know which one to buy and if I needed anything ...
7
votes
2answers
603 views

What are these red markings on this lens?

What do those red marking do (just to the right to the focus distances?
0
votes
2answers
134 views

Is it stupid to purchase AF Nikkor 50mm f/1.8D over AF-S NIKKOR 50mm f/1.8G to save a few bucks? [duplicate]

I own a Nikon D5300 body, but wish to upgrade to a Pro FX body in future (not any time soon). Between AF Nikkor 50mm f/1.8D and AF-S NIKKOR 50MM F/1.8G, I prefer to buy the former, but at the same ...
2
votes
1answer
61 views

Tamron 24-70mm Vi USD partial dismantling

I am aware of the relative wisdom of pulling lenses apart. Specific warnings based on knowledge of this lens or closely related ones are welcome. Generic ones are unlikely to be helpful. I have a **...
0
votes
1answer
105 views

Can Sigma lenses be converted from EF-S to EF for Canon?

Does Sigma's Mount Conversion work for DC lenses to DG Lens Mount Conversion? Will my Sigma 17-70mm f2.8-f4 OS work with Full Frame Camera 6D after conversion?
2
votes
2answers
142 views

Is it normal to hear a noise when shaking a Nikon AF-S Nikkor 70-300mm f/4.5-5.6G VR?

Whenever I shake the back side of the lens near my ear, I hear a sound, like something is moving inside the lens. However, it is working properly when mounted. Is this normal?
-1
votes
2answers
69 views

Can I use Yashica 35-70 and Canon 28-80 lenses on DSLR cameras? [duplicate]

I have two camera lenses; one is a Yashica 35-70 mm lens which I am using on a Yashica FX-7 Super manual 35mm film camera. The other is a Canon 28-80 mm lens which came with the Canon EOS 66 35mm film ...
2
votes
1answer
93 views

Does it actually matter considering DxOMark's Perceived MPix Score for lenses?

The score of Tamron 70-200 f2.8 Di VC is higher than Canon 70-200mm f4L IS on an APS-C Canon Camera like the 550D. Does this make the lens better than an L Lens in terms of image quality? Autofocus? ...
-1
votes
1answer
141 views

“Lens not attached” error with new Sigma 150-500 zoom lens on Nikon D3300

I received my sigma 150-500mm F/5-6.3 zoom lens. I connected my lens to my Nikon D3300 which is compatible. When I take a picture the picture is black. I think it's because the shutter is closed. I ...
0
votes
3answers
140 views

What are the best non-m4/3 lenses for Micro 4/3 cameras? [closed]

I'm looking into purchasing some fast primes for my Olympus E-M5 Mark II. But rather than stick to modern lenses, I'm looking into adapting those from the film era or early digital years. I'm looking ...
0
votes
2answers
109 views

What F means in lenses and how to find focus distance [duplicate]

I've found some camera sensors with very low resolution to use with electronics. Camera have 150x150px and can mount different lenses type: F2.7, F4.0, F6.0. I want to ask what F means and if I can ...
4
votes
2answers
186 views

How can I avoid fuzzy photos at 300mm zoom?

I'm so disappointed in my new 70-300mm lens (AF-S Nikkor ED lens.) I use auto-focus because I'm such an amateur. Is it my camera, (D40x) or the lens? It's probably me, but is there a trick to ...
2
votes
2answers
103 views

Can I use the same lens for landscape and star photography?

My wife loves landscape photography and I love capturing the stars. We are both amateurs and we have been using our stock Canon EOS 750D lens (18-55mm) so far with 'ok' results (both kit and user-...
1
vote
3answers
88 views

What happens if i block the centre of the rear element

For example here is a rear element with a filled in circle in the middle. What happens to the picture? Is there image quality degradation? Do I lose part of the picture? What about amount off light ...
1
vote
2answers
77 views

When stopped down, does light still pass through all of a glass element behind the aperture blades

When you stop down and look through the lens, the iris (circle of light) gets smaller. Does this mean that light only passes through the middle of each lens element behind the aperture blades? What ...
2
votes
3answers
826 views

Can dirt on a camera's lens cause graininess, without causing large-scale blurring of the picture as a whole?

I have a simple point-and-shoot camera that takes satisfactory pictures when the picture is filling the computer screen. The pictures are shot with auto ISO and full daylight. But when I look at the ...
2
votes
1answer
81 views

What is the difference between the 18-55mm Nikon kit lens and the Nikon Nikkor Lens ‑ 35 mm ‑ F/1.8 ‑ Nikon F? [duplicate]

What advantages will a 35mm lens will give me if I already owe an 18-55mm. Isn't the 35mm somewhat included in the other one? It may be a silly question, but I am new in photography and trying to ...
11
votes
3answers
604 views

Different colors of light are disrupting my focus. What lens feature minimizes this?

I took this photo with a Canon 50mm compact macro lens & Canon "life size converter", and it looked somewhat fuzzy. After separating out the RGB channels, it seems evident that the different ...
1
vote
2answers
107 views

Will a DX lens have severe vignetting on a 20x20mm?

I'm going to work with a camera, a Photron AX100, which has a non-standard 20.48x20.48 mm sensor, but has an f-mount bayonet for lenses. I was wondering if it would work with DX lenses without ...
2
votes
2answers
124 views

Circular polarizing filter - slim or regular? [duplicate]

I have a Canon EOS 550D. Right now I only have some standard lenses, and I'm looking to buy a Tokina AT-X 116 Pro DX II 11-16mm F/2.8. (I love landscape photography and photography in nature in ...
7
votes
4answers
1k views

Why is my large format lens so much smaller (in length) than my 35mm-format lens?

In general I have found that as the focal length of 35mm (or APS-C) lenses increases, the physical length of the lens increases as well. However, my large format lens is much thinner than other 35mm ...
0
votes
0answers
24 views

Anyone knowledgable about lens kits for smartphones? In particular Nexus 6P? [duplicate]

I hope to find some help or info here. I am doing a photography course and I intend to buy a lens kit for my smartphone. I found some kits on the internet (Amazon), but I am lost when it comes to ...
8
votes
3answers
632 views

Is the lack of image stabilisation on lens a major drawback for photo shooting the moon?

I have found these lens Nikon AF 70-300mm f/4-5.6G in a very good price. I am planning to use them mainly to take pictures of the moon. I am aware that this lens does not have image stabilisation. Is ...
1
vote
2answers
163 views

How can I modify my NIkon D5500 so I can make a vintage lens auto focus?

I just bought a Nikon D5500 with 35mm f1.8. I also have a Nikkor 70-210mm AF (that doesn't focus automatically). I learned that using a TC-16A AF Teleconverter 1.6X might help but i was informed that ...