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

learn more… | top users | synonyms

2
votes
3answers
208 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
640 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
4k 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
3k 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
2k 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
356 views

What is the meaning of “cropped sensor”?

What is the meaning of the term "cropped sensor"?
4
votes
1answer
312 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
14k 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
220 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
2k 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
4k 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 ...
15
votes
8answers
3k 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
331 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 ...
27
votes
6answers
14k 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, ...
31
votes
14answers
25k 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
6k 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 ...
13
votes
2answers
5k 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 ...
36
votes
10answers
5k views

What is crop factor and how does it relate to focal length?

I'm reading that a 50mm lens is recommended as a first prime lens for DSLR owners as it's supposed to give a 'natural' perspective, but when used on (most) DSLRs, the view is cropped, as if you were ...