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Questions about specific terms used within photography

learn more… | top users | synonyms (1)

1
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2answers
414 views

How does photography (as opposed to physics) define “focal-plane”?

This wikipedia article concerning focal-plane shutters opens with the following statement (bold emphasis added by myself): In camera design, a focal-plane shutter (FPS) is a type of photographic ...
2
votes
2answers
78 views

Is there a word for the point where the optical axis meets the ground plane in a scene?

In aerial photography, or photography in general: Is there a term for the point where the optical axis intersects the ground plane( scene)?
3
votes
4answers
11k views

What is the difference between Nikkor D type and G type lenses?

I recently bought a Nikon D5100. And along with this camera, I got the AF-S DX NIKKOR 18-55mm f/3.5-5.6G VR lens as kit. It's "G" type lens, right? One of my friend suggested to buy a 50mm f/1.8D ...
2
votes
1answer
163 views

What is an AA Filter?

This question is from most recent release of Nikon's new version, the Nikon D5300. In one review, D5200 vs D5300, it says the the D5200 has an AA Filter. What is an AA Filter? What are its specific ...
4
votes
2answers
527 views

What is this dead pixel problem really called?

On all photos from my last vacation I see this red point. It appears on in-camera JPGs as well as on RAW files. A see a red pixel in the same position on all pictures. How is this problem called? Is ...
3
votes
3answers
4k views

What is the relationship between “macro” and “telephoto” lenses? [duplicate]

Can anyone explain the difference between "macro" and "telephoto"? I know that a macro lens will give you a magnification of 1:1 but how does it differ from a telephoto lens?
4
votes
2answers
275 views

What does 'freedom of color from white or gray' mean?

The dictionary entry for the word chroma says, "the purity of a color, or its freedom from white or gray." What does that statement mean? What is color made of? What causes color? I was reading this ...
7
votes
6answers
1k views

Why is focal length measured in millimeters?

Why is focal length measured in millimeters?
1
vote
4answers
1k views

What exactly is focal length when there is also flange focal distance?

If focal length is the measure between the rear element and the sensor then how can you have different flange focal distances? Is the focal length not literally the measure between the rear element ...
2
votes
1answer
512 views

Is it wrong to call the image plane the focal plane?

I'm from France and I would ask a question on a point that I don't understand, as it seems that so many people confuse (or may be I'm wrong). On the camera, there is a symbol (a theta or phi) which ...
9
votes
1answer
1k views

What is a “De-clicked” aperture control ring?

The Samyang 85mm T1.5 Cine Lens featured a "De-clicked" aperture control ring. What exactly is it?
8
votes
2answers
822 views

Is there a DSLR fixed lens camera?

A DSLR by definition does not tell us if the camera has a mount for interchangeable lenses. The lens of a DSLR could be a fixed lens, right? Is there, or was there ever, such a camera? If not, why ...
3
votes
1answer
150 views

What is Effective Aperture?

What is Effective Aperture? And how it can affect my exposure? Also how does it relate to magnification? A question that talks about effective aperture but without details
2
votes
2answers
3k views

What is the difference between depth of field and focal plane?

I would like to know how to address the difference between them and how relates to each other.
3
votes
1answer
510 views

What is the meaning of the letters “O.M.P.” for Canon lenses?

What do the cryptic letters "o.m.p." mean for a Canon lens? For example, EF 24-105mm f/4L IS USM O.M.P."
3
votes
2answers
3k views

What is a Dual pixel autofocus?

I have seen the term "Dual Pixel CMOS autofocus" used by Canon (specifically in relation to the 70D). What is it? Is this Canon specific technology? Are there equivalents in other manufacturer's ...
-1
votes
1answer
55 views

ACR terminology

Can someone recommend a guide (or a sensical glossary) that would pull together all the terminology used in the Adobe Camera Raw, preferably by tab (Basic, Tone Curve, Detail, etc.), with all the ...
7
votes
8answers
3k views

How many pixels in a megapixel?

I am trying to find out the definition of a megapixel? Some references on the web place it at 1 million pixels, and other places say it is equal to 2^20 = 1,048,576 pixels.
2
votes
1answer
242 views

What is the name of a tripod feature that adjusts level automatically?

I am looking for my first tripod and just learning terminology. I hear there are such that level automatically, but I am not sure how to google them. What is this feature called with different brands? ...
2
votes
2answers
558 views

What is difference between tonal contrast and just contrast?

What is difference between tonal contrast and just contrast? Usually the editor programs will have a contrast slider while the "special" plugins of these software will have tonal contrast. Is tonal ...
6
votes
1answer
994 views

What is the meaning of “Blue Hour” and its differences from “Golden Hour?”

What does "Blue Hour" exactly mean? What time in the day can I capture this "Blue Hour" and how long is it? Also, what are its differences from the "Golden Hour"?
14
votes
3answers
1k views

What does “Strobist” in Photography mean?

I often come across this term "Strobist" in Macro Photography and other equipment related to it. What does Strobist actually mean?
14
votes
1answer
569 views

What is lomography?

I've been seeing some buzz about lomography lately. I've been trying to understand what it is and how it is different from photography. Most refer to it as 'experimental analogue film photography'. Is ...
1
vote
0answers
69 views

Why do people tend write “RAW” instead of “raw”? [duplicate]

Given that in the English language using all-caps means that the word is an acronyms or initialism (e.g., NASA, RCMP), "RAW" doesn't make much sense--unless there's some longer term that "RAW" stands ...
0
votes
2answers
396 views

How is zoom measured? [duplicate]

Zoom meaning the ability to make something distant appear closer. Consumer cameras are sold with a maximum zoom which is supposed to define how much closer. For example a camera might be 40x zoom, ...
2
votes
3answers
8k views

What does infinity focus mean and when should I use it?

All my lens have focus ring where at the end there's an infinity symbol. What does that mean? If I'm taking landscape shot and what everything from near to far to be in focus, do I use infinity? Or am ...
9
votes
3answers
529 views

What do you call the technique for removing uninteresting parts of photo by combining two images?

I'm looking for the name of a technique to cut out an "uninteresting" part of a photograph. The example I'm thinking of is of a guy on the left of a photograph and a tower on the right. The middle ...
9
votes
4answers
4k views

What is a “small” aperture?

It happens a lot. People refer to the aperture being small (or big!). By default does this imply a small opening of the iris (literal aperture), or a small f-value (how the aperture is measured, for ...
2
votes
3answers
212 views

Subject out of center — what is correct term?

Composition which consists of placing the topic or main subject to the side and never in center of the picture: does that technique have a name?
1
vote
1answer
321 views

What is it called when a series of photos taken over a few days is made into a video clip?

I saw this on a National Geographic programs when they had recorded the sky for a few days and then make a few seconds long clip from it. What is this called?
5
votes
3answers
553 views

What does it mean that a lens is x millimeters?

Every lens has different focal length in terms of millimeter so if I have a 100mm lens, what does that refer to? Does it mean the length of the lens itself is going to be 4 inches long, or does this ...
12
votes
7answers
1k views

Can someone give a simple explanation of ISO?

Can someone please explain to me what ISO means in the camera settings. In an answer to a question about taking pictures at a dance party, I was told to use ISO 1600. What does that number really ...
9
votes
4answers
15k views

Are 2 megapixels enough for HD resolution pictures?

HD pictures has 1920x1080 = 2073600 pixels = 2025 kilopixel = 1.98 megapixel. Does this mean that we can take HD pictures with a 2 MP camera? If not, why not?
2
votes
4answers
934 views

What is “Dragging the Shutter”?

Ive heard this term of "dragging the shutter" and was wondering what it means and why would i use it Can anyone answer this?
7
votes
1answer
432 views

What is Colour Rendering Index (CRI)?

From this answer on white balancing a LED light I understood there's a thing called Colour Rendering Index (CRI). I understand it has something to do with how well lights reproduce the sun's colour ...
7
votes
4answers
2k views

What does IQ mean?

I see a lot of questions which mention IQ. The only meaning I know outside photography is "intelligence quotient" but obviously IQ has some other meaning here. IQ is used for example in "Lens with ...
8
votes
2answers
1k views

What does “workflow” mean?

I keep seeing the term "workflow" in relation to post-processing being used here and on other sites. What does it actually mean though? To me it sounds like it means you do A, then B, then C every ...
6
votes
2answers
3k views

What is the difference between a lambda print (RA-4) and a color inkjet print?

I can't seem to find any good information about the differences between the lambda printing process (on RA-4 paper, also known as a C-prints or chromogenic color prints) and inkjet printing (also ...
6
votes
2answers
549 views

What is bracketing?

I have seen this term a lot and I was wondering what, in basic terms, what bracketing/autobracketing is. Also, why would one want to 'bracket'? P.S. - there are other questions asking what DoF and ...
5
votes
2answers
470 views

What is term for the opposite of “Dragging the Shutter”?

My first helpful experiments with flash started after taking a seminar with Scott Kelby on the subject. I don't recall him mentioning dragging the shutter (but he may have). But, I do recall him ...
0
votes
1answer
3k views

What does ISO stand for? [duplicate]

I've recently been learning how to use a camera, and was wondering what ISO stood for?
7
votes
2answers
246 views

What does it mean to excite aliases?

I recently came across the phrase 'excited aliases.' The phrase seems to be related to lens sharpness in some way. While a web search turns up the phrase a few times, I am unable to locate a decent ...
3
votes
2answers
3k views

What is the difference between a “slave flash” and “master flash”?

My Nissin Di866 II flashgun supports operation in both "slave flash" and "master flash" mode. The former I know needs to be used with a Nikon DSLR's "Flash Commmander" mode. What's the latter mode? ...
9
votes
2answers
3k views

What is a vertorama and is it really different from a panorama?

Is "vertorama" a real photography term, or is it simply something that people use to describe a vertical panorama? I never thought that panorama was limited to horizontal landscape oriented images, ...
8
votes
2answers
16k views

What does the expression “V+F” (or “V&F”) mean on a photography web site?

I was reading comments on my photos posted at 500px.com (for example, at http://500px.com/photo/21988337 and http://500px.com/photo/21997241). Read a few comments that say V+F or V&F, what are ...
8
votes
3answers
999 views

What is a kit lens?

I am new to photography and am looking to purchase my first DSLR or mirrorless camera. While reading Buying a digital SLR on Digital Photography Review the author keeps referring to the camera's kit ...
10
votes
2answers
5k views

What is the meaning of W and T on a camera's zoom buttons?

On every conventional digital camera (excluding the models with detachable lenses), there are buttons to zoom in and out with W side and T side. When you press W, the lens zooms out. The lens zooms ...
3
votes
2answers
822 views

Nikon Lenses: what is the difference between Micro/Macro vs non-Micro/Macro of the same focal length? [duplicate]

Possible Duplicate: What is a macro lens? What is the difference between a Nikon “Micro” lens and a “Macro” lens? I know what macro photography is, but what makes a macro (or in Nikon's ...
2
votes
4answers
661 views

Is the angle of view actually different on APS-C?

A 50mm prime lens, whether APS-C or Full-frame is designed around the 35mm format. As such, is the angle of view actually different on a DX/APS-C crop sensor or are we just seeing less of the full ...
5
votes
2answers
3k views

What does “Flat Field Focus” mean?

Looking at lenses, specifically sigma macro lenses, I noticed that it had a ""Flat Field" front lens element". What does this mean? And how is it different to the norm?