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Questions about specific terms used within photography

learn more… | top users | synonyms (1)

5
votes
4answers
341 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!
5
votes
1answer
293 views

Why would a photographer do focus stacking?

Recently, I come across the term called Focus Stacking where you combine different pictures with different focus points. My question is, why do the focus stacking? Are there any benefits from the ...
5
votes
2answers
415 views

What is an independent flash called?

By "independent flash" I mean a flash which is not attached with the camera by default. What is the technical name for it?
5
votes
5answers
642 views

What is it called when multiple photos are adjusted for further blending?

I have taken a series of noisy photos without a tripod. I want one less noisy version, so I need average them down to one photo. But details of the individual images do not exactly match, so that ...
5
votes
1answer
805 views

How to figure out whether the colours in a photo are warm or cool, and how does that matter?

On 1x some people have said that this picture has warm colours. I wish to understand what qualifies to be a warm colour, cool colour, and how does that matter? Warm means bright? and Cool means ...
5
votes
2answers
4k 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?
5
votes
2answers
488 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 ...
5
votes
2answers
149 views

What's the generic term for portable flashes (Speedlites, Speedlights etc)?

What's the generic term for portable flashes (Speedlites, Speedlights etc) to distinguish them from studio strobes and alike? Is it simply speedlight/speedlite or has that just become a generic ...
5
votes
3answers
4k views

What does “R” mean in Fujifilm's XF Fujinon lens names?

Fujifilm currently makes three lenses for their new X-Pro1 mirrorless camera system: Fujinon XF18mmF2 R Fujinon XF35mmF1.4 R Fujinon XF60mmF2.4 R Macro "Fujinon" is Fujifilm's lens division. The ...
5
votes
1answer
322 views

What is the difference between a step-up and a step-down ring?

What is the difference between a step-up and a step-down ring? I want to put a large diameter filter on a small diameter lens. Do I need a step-up ring or a step-down one?
5
votes
1answer
257 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 ...
5
votes
3answers
614 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 ...
5
votes
1answer
675 views

Choosing a Gitzo Tripod head - deciphering series, model #, etc

I recently purchased a Gitzo Mountaineer tripod, the GT0541. It is a Series 0 (not really sure what that means), 4 section with ground-lock capability. The G-Lock capability has been really nice for ...
4
votes
5answers
3k views

What's the difference between exposure and shutter speed?

Is there a difference between exposure and shutter speed, or are the terms interchangeable? I read that "If you use a quick shutter speed, you can just raise the exposure to compensate." Is this ...
4
votes
8answers
1k 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 ...
4
votes
1answer
647 views

What is an auto-focus motor?

I recently bought a Canon 550D, and I read it has an auto-focus motor, which not all cameras possess. I'd like to know what it is, and what I can do to keep it running smoothly; AFAIK the manual ...
4
votes
2answers
3k views

What is the difference between a point-and-shoot and a mirrorless?

Both point-and-shoot camera and mirrorless cameras seems to be mostly similar in the way they work. So, What are the differences between a point and shoot and a mirrorless camera? Is a mirrorless ...
4
votes
2answers
551 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 ...
4
votes
3answers
5k views

What is Aliasing and Anti-Aliasing?

What is Aliasing and Anti-Aliasing? Is it a bad thing to have in an image? If so how to avoid it? If you can describe your answer using examples then that would be great.
4
votes
4answers
1k views

What are the types of aperture blades?

The Canon EF 24-105mm f/4 L USM IS lens has rounded aperture blades. What other types of aperture blades are there, and what are the advantages and disadvantages of each of them? Is the aperture ...
4
votes
1answer
254 views

What are Medium Format and Large Format cameras?

What are they and what are they used for? And how are they different from regular SLR or DLSR cameras?
4
votes
3answers
3k views

What is the meaning of single focal length?

The Nikon AF-S DX Nikkor 35mm f/1.8G is described as a single focal length lens: http://www.nikon.co.in/products.php?categoryid=1014. What does that mean? What are its disadvantages as compared to ...
4
votes
2answers
290 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 ...
4
votes
3answers
2k views

What is the “visual center” of an image?

I've heard that one of the tricks designers use for a more effective result is placing an object in the visual center. Where is the visual center in an image, why is it important, and how could it be ...
4
votes
2answers
299 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?
4
votes
1answer
316 views

What is meant by 'centering quality'?

I'm reading lens reviews and I have encountered the term 'centering quality' a few times (e.g. http://www.photozone.de/sony_nex/720-sony50f18nex?start=1). What does this term mean? What are the ...
4
votes
2answers
509 views

What does the term “saturation luminance” mean in the definition of dynamic range?

The concept behind the dynamic range definition given by ISO 15739 is based on the ratio of the maximum luminance that receives a unique coded representation (the "saturation" luminance) to the lowest ...
4
votes
1answer
551 views

Does the liquid effect in these photographs have a specific name?

I aspire to become a fashion and wildlife photographer, and I am starting out in that mission today. Lucky me, and the first photographer whose works I came across is Jaroslav Wieczorkiewicz. His ...
3
votes
3answers
572 views

Do Professional and Semi professional cameras have “steadyshot” technology?

Do professional and semi professional cameras have good optical image stabilization, sometimes called steady shot?
3
votes
2answers
485 views

What is this “lines in the sky” effect called?

I see a lot of pictures with those "line" effects in the sky and I'm wondering how this technique is called (so I can google how it's done). http://500px.com/photo/3464783
3
votes
3answers
673 views

Is there a term for “not portrait” photos?

My photos rarely have people (faces) in them. Is there a term for such photography?
3
votes
2answers
318 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 ...
3
votes
4answers
15k 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 ...
3
votes
3answers
5k 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?
3
votes
1answer
237 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 ...
3
votes
2answers
902 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 ...
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? ...
3
votes
2answers
171 views

Does fps relate to still photography or videography?

As a beginner, how much importance should I give to the FPS feature of a camera? How is the price of a DSLR related to the FPS? Directly or inversely? I was under the naive impression that FPS was a ...
3
votes
1answer
542 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 ...
3
votes
1answer
264 views

What is the difference between image processing and image editing?

I've been facing a few questions in my mind about the terms image processing and image editing. What is the difference?
3
votes
1answer
164 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
3
votes
1answer
221 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 ...
2
votes
2answers
470 views

How does physical aperture size relate to f/stop?

There are two lenses on the market I am comparing AF Micro-Nikkor 60mm f/2.8D AF-S VR Micro-Nikkor 105mm f/2.8G IF-ED If I use the formula for calculating apertures of both the lenses I will use ...
2
votes
3answers
349 views

Are these Nikon 16-85mm lenses actually the same?

I just ordered the D7000 with three lenses, one of them was the Nikon AF 16-85 mm f/3.5-5.6 DX G AF-S ED. Now I found that they sell a package "D7000 with 16-85mm, AFS G VR" for $100 less. I can undo ...
2
votes
3answers
214 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?
2
votes
2answers
356 views

What is the meaning of “cropped sensor”?

What is the meaning of the term "cropped sensor"?
2
votes
3answers
9k 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 ...
2
votes
2answers
114 views

Why refer to “aperture” as “iris”?

With common lenses the aperture is controlled by a mechanism called an "iris." But, especially with cine/video-oriented lenses, I often see the term "iris" used as an apparent synonym for aperture. ...
2
votes
3answers
195 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 ...