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Questions about specific terms used within photography

learn more… | top users | synonyms (1)

3
votes
2answers
295 views

If it's not a 100% crop, what is it? [duplicate]

I've been reading a camera review which shows a picture with a tiny rectangle highlighted. It then shows that rectangle expanded to the same size as the original picture so that one can see the ...
0
votes
1answer
62 views

What does “OS” mean on a Sigma lens? [duplicate]

I want to buy a Sigma 180mm F/2.8 EX DG Macro OS HSM Sigma. What does EX mean? What does DG mean? What does OS mean? What does HSM mean?
9
votes
5answers
969 views

What's the difference between colour space and bit depth?

I know that there are different types of colour space and that sRGB is the most common. Bit depth defines the variations of a colour channel, where (I think) 8 and/or 16 bits are the most common. ...
3
votes
3answers
644 views

Is there a term for “not portrait” photos?

My photos rarely have people (faces) in them. Is there a term for such photography?
4
votes
2answers
260 views

What's the proper name for the eye viewfinder?

I can use the screen as a viewfinder or the smaller, eye viewfinder on most cameras. Is there a proper name for the eye viewfinder?
3
votes
1answer
135 views

What is the name of this ruler for Photogrammetry? Where to find similiar ones?

i want to measure something in a picture on a plane. To adjust the picture after shooting it e.g. to do lens correction and de-skewing I want to use a calibration ruler as attached. What is the ...
0
votes
1answer
50 views

about luminance and illuminance: what is the difference? [duplicate]

First of all, let me say that english is not my first language, so please excuse any mistakes that you could meet from here on out. I read several articles and explanations about luminance and ...
3
votes
5answers
715 views

What is Snapsort's true resolution?

On Snapsort I found this explanation: True resolution Manufacturers advertise high megapixels to sell their cameras, Snapsort calculates the true resolution of each camera based on the ...
0
votes
4answers
125 views

What is a standard kit lens?

I know what a kit lens is, but I am wondering what a standard kit lens is. There is a post for what a kit lens is, but I couldn't find a post on standard kit lenses. Standard or normal, in general, is ...
2
votes
2answers
186 views

What is the name for the type of photography where the subject is close-up?

I believe there is a name for this particular type of photography where the subject is close-up such as the below examples:- I'm trying to search for photography like this on the web but unsure ...
6
votes
3answers
353 views

What does “DMC” mean?

I have seen "DMC" in many names of digital cameras. Is this an abbreviation? What does it mean? Some examples: Lumix DMC-TZ40 DMC-FZ200 DMC FT25
3
votes
3answers
160 views

What is the difference or relation between a Color Model and a Color Space?

What is the exact relation or difference between a color model and a color space? I find these two terms to be used interchangeably in some literature. Are they simply the same? Thanks!
2
votes
2answers
87 views

Are the terms 'push' and 'pull' relevant/applicable to digital photography?

The terms push and pull come from the days of film processing, and there's more on that here and here, but essentially they refer to increasing or decreasing the chemical processing time to account ...
1
vote
1answer
161 views

What do you call a photo session that involves youth & erotica?

I'm not really sure how to ask this question, so I'll just explain what my potential client says they want. I have potential female clients that want to have pictures taken of them partially (maybe ...
2
votes
3answers
87 views

What is the part of the tripod head which attaches to the quick-release plate called, so I can find replacements/alternatives?

I want to replace this with something less prone to error, but I'm having trouble searching for it and not everything else related to tripods. This is the part that attaches the quick release plate ...
2
votes
2answers
160 views

What is the name of the part that goes between a camera strap and eyelet?

What is the name of the part that goes between a camera strap and eyelet? Sometimes camera-straps fits directly onto an eyelet which is fixed on the camera body. On some cameras though, there is a ...
4
votes
1answer
151 views

What is “north light”, and how can I use it in my photographs?

I've heard that some painters favored "north light". I suppose that this is light coming from the north, but what is so special about it? If I live somewhere where the literal north light is blocked ...
-1
votes
0answers
26 views

What is Exposure value [duplicate]

can you guys help me with understanding the basics about what is Exposure value and how to use that for better photography?
3
votes
1answer
147 views

What is it called when you intentionally expose a film negative during development?

Back in the film days, there was technique of exposing a negative, while it was being developed, which distorted the image, sometime very strikingly. This manipulation had a name, which I cannot ...
2
votes
3answers
504 views

What does “maximum aperture” mean in a camera spec? Where can I get the full aperture range?

I own a Canon S95, and am considering getting a newer model (e.g. Canon S110 or S120), and I'm comparing the specs. According to DPReview.com, the S95 has a maximum aperture of F2.0-F4.9, and the S110 ...
2
votes
1answer
184 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 ...
8
votes
2answers
201 views

Can the soft focus effect be created by slightly throwing the image out of focus?

Is a soft-focus image just minimally out of focus?
0
votes
1answer
235 views

How is f-stop a measure of dynamic range?

As far as I have read f-stop is a measure of the aperture. This affects the amount of area in the foreground and background which is in focus. While having a look at the dynamic ranges of cameras I ...
29
votes
1answer
2k views

Why does every digital camera save photos in a directory called DCIM?

It seems like every digital camera that I have ever used creates a folder called DCIM on its removable storage to save photographs into. Can anyone tell me what this name (DCIM) stands for (if ...
10
votes
2answers
993 views

What is sharpness vs. clarity in photo editing software?

I have been using Lightroom and Photoshop Pro for past 7 months. For all my photos, I used to increase the sharpness using the options available. I now see another option called clarity, and when I ...
1
vote
2answers
180 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
76 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)?
2
votes
4answers
1k 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
131 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 ...
0
votes
0answers
42 views

What does “v+f” mean? [duplicate]

I've received a comment in 500px.com "nice shot, v+f" e.g. http://500px.com/photo/50284184 What does it mean? Thank you
4
votes
2answers
419 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
636 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
205 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 ...
8
votes
6answers
811 views

Why is focal length measured in millimeters?

Why is focal length measured in millimeters?
2
votes
1answer
227 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
399 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
760 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
137 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
759 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
371 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
2k 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
53 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 ...
6
votes
7answers
714 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
194 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
373 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 ...
5
votes
1answer
703 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"?
13
votes
3answers
639 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?
12
votes
1answer
410 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
68 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
190 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, ...