Before the rush

Before the rush
by evan-pak

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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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5answers
7k views

What is the relationship between focal length and shutter speed?

I am very new to photography and am trying to grasp the basics of it these days. Can someone please help me understand the relationship between focal length of a lens and shutter speed of camera?
0
votes
1answer
15 views

18-55 VRII or 35mm 1.8 for Nikon D3300

I own a 18-55 kit lens for my Nikon D3300. i plan to sell it and buy a 35mm 1.8 prime lens. will it worth. i think there is no much difference in focal range of the both
0
votes
2answers
124 views

Which 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, ...
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votes
0answers
58 views

Next Lens for beginner [on hold]

Im a beginner in photography. i have a Nikon D3300 with a 18 55 lens. What is the next lens should i buy as my next step to get beautiful pictures ?
6
votes
2answers
159 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 ...
1
vote
1answer
110 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 ...
12
votes
2answers
3k views

How does an apodization filter improve bokeh?

The new Fujifilm Fujinon XF56mmF1.2 R APD has an "apodization" filter, which Fujifilm says "smoothes the outline of the subject to create a more natural bokeh effect". The Wikipedia article on ...
4
votes
1answer
618 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 ...
0
votes
3answers
67 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?
3
votes
6answers
26k views

Can I use old Minolta AF lenses on my new Canon?

I just recently bought my first DSLR, a Canon Rebel t2i/550d. I use it mostly for video and it works wonderfully. I bought the kit lens with it, but I am looking to expand my lens collection. I found ...
29
votes
2answers
4k views

What is a pancake lens?

I've read about a "pancake lens" but don't really understand what that means. What the pros and cons of having a pancake vs. another type of lens? I'm thinking of getting a Panasonic Lumix DMC-GF1 ...
155
votes
14answers
84k views

What do all those cryptic number and letter codes in a lens name mean?

Then looking at a lens name there is a lot of acronyms in the name describing it's features (often specific to the manufacturer). Examples, Nikon: Nikon AF-S DX 16-85mm VR f/3.5-5.6G IF-ED Nikon AF-...
4
votes
1answer
115 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 ...
14
votes
2answers
19k views

What's the difference between a regular lens and a macro lens? [duplicate]

What is the difference between a 100mm lens and 100mm macro, or 50mm and 50mm macro? Can we use a macro lens to shot portraits? If yes, what focal length is the best? Please suggest a Canon macro ...
7
votes
3answers
4k views

What is exactly the '3D pop' in photography?

When reading about lenses, sometimes I come along the term '3D pop' and I think I have a rough idea about what it means; but I'd love to have a precise or scientific explanation (optics) of it. ...
5
votes
1answer
115 views

Where can I find information on the Pentax Q lenses serial protocol?

I'm searching for detailed information on the Pentax Q lenses (any, but I'm especially interested in the 5-15mm-lens) serial protocol, which controls focus/zoom/aperture. So far I have found nothing ...
0
votes
1answer
75 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 ...
1
vote
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 AF-D 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....
0
votes
1answer
53 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
136 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
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2answers
142 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?
18
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6answers
4k views

How can aperture be f/11 on a lens with an aperture range designation of 3.5-5.6?

I made a series of outdoor shots with Nikon D5000, with the 18-55mm 1:3.5-5.6G VR kit lens. On some shots, I see in the EXIF info f/11, and in another shot, f/9. How can that be, that the f-number ...
6
votes
3answers
5k views

How do zoom, magnification, and focal length relate?

Zoom lenses and cameras with superzooms are often sold with a times ("×") zoom number — like a 12x zoom or 30x zoom. The question How do I convert lens focal length (mm) to x-times optical zoom? ...
0
votes
2answers
63 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 ...
11
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11answers
35k views

Can I shoot a photo with my DSLR without the lens on?

I thought it would be interesting to see what kinds of effects I could get by shooting a photo without any lens on my DSLR. However, when I take the lens off, it tells me that no lens is attached (...
1
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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
87 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
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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 ...
3
votes
5answers
18k views

How do I fix a stuck zoom ring on Nikon 18-55mm AF-S?

I have a Nikon D3100. The zoom ring on the lens that came with the camera is stuck. The lens is a AF-S NIKKOR DX, 18-55mm. Is is broken, or just stuck and is there anything I can do "unstick" it. ...
33
votes
13answers
14k views

Should I buy a camera with kit lens, or body plus lens separately?

I am planning to buy a DSLR soon. Before I zero in on the model, I want to know whether it is advisable to buy a kit (body + 18-55 lens) or not? OR should I go for the camera-body and the lens ...
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
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 ...
3
votes
1answer
110 views

Where can I find 4x, 8x, and 12x lens adapters for a 30mm ring size wearable camera?

I have what is called a wearable camera. I am looking to improve and enhance my view as a better live eye look, rather than the distant view all wearable's have in today's market. The camera has a ...
3
votes
1answer
476 views

Nikon 16-85 VR focus noise problem?

My 16-85 VR is doing some weird noise during focus, manual or auto. It's like an hiss. I asked in a local shop and they said it can be some microdust inside the lens. But I'm a little worried it can ...
2
votes
1answer
65 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 ...
0
votes
1answer
164 views

Projector Design and lenses

I am working on a project where I need to project a single image onto an object, Originally I was looking at the digital projector route but due to cost and complexity this has been ruled out. I found ...
4
votes
3answers
699 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"...
1
vote
2answers
75 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 ...
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 ...
23
votes
8answers
3k views

How do photographers manage multiple lenses?

This is probably a very naive question but I will ask anyway. It appears that most photographers carry multiple lenses. Each lens serves a different purpose. I understand that. However, I can't ...
0
votes
2answers
124 views

What lens should we use to shoot large products in a small studio?

I work for a company that sells events and trade show booths. We have a studio to shoot the products, but unfortunately, it is on the small side. I would need a wide angle lens to shoot the products. ...
0
votes
2answers
96 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 ...
7
votes
5answers
532 views

Do top-of-the-line lenses transmit more light at the same f-stop?

We usually refer to the F number to compare how fast is a lenses with another one. I understand that the optic quality should help as well — so would a L series in Canon (or whatever is the equivalent ...
-6
votes
1answer
61 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?
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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
2answers
144 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?
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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 ...