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This tag refers to to physical size of a camera's sensor.

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6
votes
3answers
363 views

Why do depth of field calculators show *more* DOF for larger formats with the same lens parameters?

I thought I had a pretty good seat of the pants understand of DOF. But I've been playing with DOF calculators and it's giving me results that don't line up with my practical experience, so I'm ...
1
vote
1answer
56 views

Same mfg process = same performance in FF vs. cropped sensor?

I've seen generalizations that full-frame sensors tend to exhibit better low-light performance and dynamic range than a cropped-sensor specifically because they tend to use larger photosites that ...
0
votes
3answers
108 views

Is the formula for object image size given focal length, etc. independent of sensor size?

I am trying to figure out how big an object of, say, 50cm height at 100m distance and 600mm focal length would appear on a camera's sensor. The ubiquitous formula object size in image = focal length ...
7
votes
7answers
866 views

Does a larger sensor resolution increase the difficulty of shooting hand-held?

I'm thinking of upgrading to a D800 and I think I read something about the 36MP resolution of the sensor to be a liability when hand-holding the camera at lower shutter speeds. Unfortunately I cannot ...
3
votes
2answers
193 views

Does the quality of images from a small sensor improve significantly year-to-year?

As I understand it, larger image sensors on digital cameras make for higher quality pictures, but does a given size sensor produce significantly higher quality this year from the same size sensor of ...
3
votes
4answers
177 views

Is there anything in medium format systems which can beat pro-level 35mm digital with fast lenses in low light?

When someone wants to compliment a 35mm sensor, he can say that it's [almost] as good as medium format. Medium format appears to be the gold standard where image quality is concerned. But. I'm ...
0
votes
2answers
85 views

Does a smaller sensor limit your choice of subject matter?

Is there a major difference in terms of what you can photograph with different sizes of sensor? By having a smaller sensor, can you be limited in taking pictures of certain types of subject? If so, ...
1
vote
3answers
404 views

How does sensor size impact depth of field and diffraction for macro photography?

Macro photographers often stop down to very small apertures to maximize the razor thin depth of field when operating at such close focus distances. Smaller sensors have greater depth of field than ...
2
votes
3answers
210 views

Why is zoom avoided in large sensor compacts?

Why don't large sensor compacts (for low light shooting in moderate distances) with, let's say, 10x zoom exist? I'm primarily thinking about models such as Sony RX100 or Canon G1X that come in a ...
-1
votes
1answer
68 views

What is the difference between f/6 in dx and fx lens? [closed]

What is the difference between f/6 or f/1.8 in dx and fx nikkor lens?
9
votes
3answers
989 views

Do I need a full-frame camera for low-light photography?

I primarily shoot low-light photos, and I upgraded from a point-and-shoot to the Sony NEX-5R (which has an APS-C sensor) a few months back. However, I find that the low-light performance of the ...
4
votes
2answers
228 views

How does a DX-format sensor support FX lenses?

I have a Nikon D3200 camera. I want to buy a prime lens. I read some reviews online and understand that the "Nikon AF-S NIKKOR 50mm F/1.8G" would be a good lens to buy, but this is a FX lens. Can ...
0
votes
0answers
86 views

Good examples of full frame's advantages over the cropped sensor? [duplicate]

There is a good topic on the site called "Good examples of RAW's advantages over JPEG?" There are many theoretical discussions over the internet including on this site about the full frame and ...
22
votes
5answers
4k views

Why and how do “bigger pixels” make a better picture?

This is going off of today's iPhone 5S announcement, when Phil Schiller said that "bigger pixels" is the key to a better picture. What does this mean? Is it true or just a marketing ploy?
2
votes
2answers
219 views

How does sensor size relate to image resolution?

How is it possible that with a particular sized sensor (say APS-C) it is possible to get different sized image cameras (by this I mean a 10 megapixel camera, a 15 megapixel camera etc)? Where does ...
10
votes
2answers
388 views

Why are 35mm image sensors the standard?

I often hear about sensors being full frame (which I think means 35mm sized) and others being cropped (if they are less than that) such as APS-C sized sensors. My question is what is so special about ...
0
votes
1answer
95 views

What is an effective means to measure image sensor dimensions from a digital photo?

Is there an effective means to measure the dimensions (length, width, diagonal length) of the effective area of an image sensor in a camera from a photo?
2
votes
4answers
514 views

Upgrading EOS 350D or changing to full frame for low-light improvement?

My question is as follows: In 2006 I bought a Canon EOS350D with a Tamron 18-200, which was a great choice for shooting pictures on vacations, not having to carry around much, etc. Now, this seems ...
4
votes
1answer
151 views

For digital sensors and in terms of imaging medium, is the minimum CoC equal to the size of 1 sensor pixel or 2? And why?

For digital sensors and in terms of imaging medium, is the minimum CoC equal to the size of 1 sensor pixel or 2? And why? For example purposes using a 35mm Full Frame digital sensor where the pixel ...
2
votes
2answers
173 views

What's the relation between sensors measured in inches and milimeters? [duplicate]

I'm a big fan of point and shoot cameras, but I'm having some issues talking with friends that have DSLR. My current camera is a Sony RX-100, that's marketed as having a 1" sensor. My friend has a ...
0
votes
2answers
531 views

How to simulate different focal length and sensor size on an image?

I like to simulate different focal length and sensor size based on an image i have taken. I have a full frame body so I like to know how the picture would look like if I have taken with a cropped ...
4
votes
2answers
392 views

Is “Ultrapixels” just marketing or is there a real benefit?

HTC has branded the sensor in its new phone (the HTC One) to be "Ultra pixels". For the same sensor size it only gives you 4MP where today's standard for top of the line smartphones is 8MP and up. Of ...
3
votes
4answers
801 views

Does micro 4/3 have an advantage in low light due to aperture equivilence?

Recent Micro Four/Thirds sensors seem to have improved their noise performance significantly. I own a Canon 5D Mark 2 full frame DSLR and am considering purchasing an Olympus OM-D EM5 micro four ...
4
votes
1answer
172 views

What factor determines the largest usable sensor size with a certain lens?

Reading this excellent answer about field of view, focal length and sensor size a new question came to mind. From the drawn diagrams it is clearly visible that for the same focal length an increase ...
4
votes
1answer
1k views

How do you determine the acceptable Circle of Confusion for a particular photo?

I've noticed that several online and/or downloadable Depth of Field Calculators use different values for the acceptable CoC (Circle of Confusion) for some of the same camera models/sensor sizes. This, ...
6
votes
3answers
1k views

What's better image quality; full frame with Canon 400mm 5.6L plus 1.4 extender, OR, cropped frame with same lens?

I am about to upgrade to a Canon 7D for my birding using my 400mm 5.6L lens. With the 1.6 crop factor sensor that gives (roughly) a magnification factor equivalent to my other option, a Canon 5D mkII ...
6
votes
3answers
433 views

Must I allow for crop factor in the viewfinder when shooting with a Nikon DX format camera?

Will a Nikon D5100 (dx format) viewfinder show me what the captured image will be, or do I need to allow for "crop" factor? Will that depend on/alter with using a DX lens or an FX lens? I don't have ...
4
votes
2answers
649 views

Are cropped images from a full-frame sensor equal quality to full APS-C images despite the lower resolution?

If I put a DX lens on a Nikon D700, it will reduce megapixels to 5.1. I understand that FX pixels are about 2.5 times larger than DX pixels. Would I be correct to assume that, therefore, my FX image ...
4
votes
6answers
1k views

Is small sensor always a bad thing?

I own a DSLR. I want to buy some not-too-expensive compact, and there are a lot of compacts in the range 100-250$ with 1/2.3" sensors. Can such a sensor/camera set give a quality somewhat comparable ...
4
votes
1answer
507 views

what's the relation between sensor size and image quality (noise, dynamic range)?

I'm reading this description on sensor size: Digital compact cameras have substantially smaller sensors offering a similar number of pixels. As a consequence, the pixels are much smaller, ...
1
vote
1answer
667 views

how does full frame cameras give better bokeh than crop sensor? [duplicate]

Possible Duplicate: When do the differences between APS-C and full frame sensors matter, and why? Why does a bigger sensor lead to a shallower depth of field? When I compare my camera ...
20
votes
2answers
5k views

Why is a 1" sensor actually 13.2 × 8.8mm?

I'm wondering how sensor sizes are calculated. The Sony RX100 reportedly has a sensor size of 1" which is 13.2 x 8.8 mm according to the press release and various sites. How does that work? That's a ...
2
votes
3answers
201 views

Why do two cameras with different resolution but both with 2/3″ sensors, and same mount and lens, give a different view?

In testing, I have a circle on a piece of paper. I need to mount a camera at a fixed distance so that the circle just captures the top and bottom of that circle. Im testing this because I need to ...
5
votes
2answers
526 views

Do compact and DSLR cameras have the same sensor size if they have the same number of megapixels?

In the analog camera, I understood the impact of using a 35mm film vs using a 70 mm film. However in digital world, I dont know if the sensor size is the same for compact and DSLRs. In other words, ...
5
votes
2answers
3k views

Why is the sensor size small in D3100 as compared to D3000?

I thought Nikon D3100 must be more advanced than D3000 (because of the higher number and the increased price). But, the D3000's sensor size is 23.6mm x 15.8mm and the D3100's sensor size is actually ...
1
vote
2answers
2k views

DX 35mm vs FX 50mm

Will the picture taken from AF-S DX NIKKOR 35mm f/1.8G and AF-NIKKOR 50mm f/1.8G be one and the same because of the DX and FX format??
3
votes
2answers
1k views

Why do the 600D/7D sensors have more noise at high ISO than 5Dmk2 or 1Dmk4?

Hi I'm wondering why the high ISO performance in a 5Dmk2 or 1Dmk4 is so much better than a 600D or 7d? I've been trying to photograph the milky way galaxy and when I use an ISO of 6400 I have an ...
2
votes
2answers
266 views

What is the meaning of “cropped sensor”?

What is the meaning of the term "cropped sensor"?
4
votes
1answer
262 views

Is there a noticeable difference between a 23.1 x 15.4mm and a 23.6 x 15.8mm sensor size?

Is there a noticeable difference between a 23.1 x 15.4 mm and a 23.6 x 15.8 mm sensor size when accompanied by a prime lens of 1.4F? After how large a change in the numbers does the difference get ...
0
votes
2answers
12k views

What is the difference between DX format and FX format lenses, and which to choose for what purpose?

http://www.nikon.co.in/products.php?categoryid=1011 What is the difference between DX format and FX format lenses, and which to choose for what purpose? What are the pros and cons of both?
5
votes
4answers
208 views

Why do small sensor cameras use proportionally larger mounts?

After seeing the Pentax Q which uses a sensor with 5.6X crop factor that is miniature compared to its mount and now the Nikon 1 system with its 2.7X crop factor also looks like its sensor is small ...
12
votes
4answers
1k views

Why do some DSLRs have fewer megapixels than some pocket cameras?

Some point and shoot cameras like the Olympus mju range have more megapixel capabilities than many DSLRs. Why is this? Is this because they have larger sensors or more dense ones? What are the ...
9
votes
6answers
1k views

What are the cheap alternatives to DSLRs to get “large sensor image quality”?

In a review of an entry level DSLR, I found this: [this] is an excellent DSLR but make clear that a DSLR is no longer the only way to gain large sensor image quality at this price [around $500] ...
18
votes
3answers
3k views

Why are larger sensors better at low light?

The top answer of What point and shoots are good in low light conditions? says that (1) a fast lens/wide aperture (2) reasonable ISO 400+ handling and (3) a large sensor when put together are critical ...
14
votes
8answers
2k views

Are full-frame cameras bad for sports photography?

I was reading about crop factor from various places on the internet, and the general idea that kept building in my mind was that full-frame cameras are good for wide-angle shots but not that good for ...
4
votes
1answer
274 views

What is the camera's influence on lenses' optical properties?

I installed my 50mm f/1.4 Nikon lens on my Olympus E-P1. I notice some properties of the lens changed — namely, magnification and DoF both increased. I understand magnification increases because of ...
23
votes
6answers
9k views

Why does a bigger sensor lead to a shallower depth of field?

It has been mentioned at a few places that a larger sensor results in images with a shallower depth of field. Example image: APS-C Canon 30D left, FF Canon 5D right, same lens, same composition, ...
29
votes
13answers
22k views

How do Micro 4/3s cameras compare with DSLR cameras?

What are the major (and perhaps more subtle) differences between the newer Micro 4/3s format in comparison to the well-established DSLR cameras? What are the pros and cons of the Micro 4/3s format, ...
15
votes
6answers
5k views

How does background blur (bokeh) relate to sensor size?

This is a somewhat theoretical question. Suppose I first take a photo of a subject using a full frame sensor DSLR, with a given lens (say 50mm prime lens at f/3.5). Now suppose I exchange the camera ...
12
votes
2answers
3k views

What differences between point and shoot zoom versus DSLR zoom cause the price disparity?

I'm just getting into the world of photography, stepping up from a point-and-shoot. I've just purchased a Nikon D3100 and it should be here in a couple of days. I've done lots of research, but ...