Pixel density and Resolution in a camera

3 months 1 week ago #760438 by Photo Junky
If you have two sensors that are different sizes, yet same resolution, will pixel density have any impact on the clarity of the shot captured?  


Photo Comments
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3 months 1 week ago #760439 by Razky

Photo Junky wrote: If you have two sensors that are different sizes, yet same resolution, will pixel density have any impact on the clarity of the shot captured?

Yes.


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3 months 1 week ago #760442 by Photo Junky

Razky wrote:

Photo Junky wrote: If you have two sensors that are different sizes, yet same resolution, will pixel density have any impact on the clarity of the shot captured?

Yes.


Can you expound on that a little please?


Photo Comments
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3 months 1 week ago #760458 by Razky

Photo Junky wrote:

Razky wrote:

Photo Junky wrote: If you have two sensors that are different sizes, yet same resolution, will pixel density have any impact on the clarity of the shot captured?

Yes.


Can you expound on that a little please?

It's like comparing the same film type with, say, 35mm and medium format - the latter can be enlarged more while maintaining subject detail.


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3 months 1 week ago - 3 months 1 week ago #760472 by TCav

Razky wrote: It's like comparing the same film type with, say, 35mm and medium format - the latter can be enlarged more while maintaining subject detail.


Not so much. Film has the same "pixel density" regardless of the format in use, so medium format film has a higher resolution than 35mm film.

The OP was about different formats having the same resolution but different pixel densities, so your film analogy doesn't apply.


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3 months 1 week ago #760485 by Razky

TCav wrote:

Razky wrote: It's like comparing the same film type with, say, 35mm and medium format - the latter can be enlarged more while maintaining subject detail.


Not so much. Film has the same "pixel density" regardless of the format in use, so medium format film has a higher resolution than 35mm film.

The OP was about different formats having the same resolution but different pixel densities, so your film analogy doesn't apply.

35mm and 120 film can be cut from the same stock, so how can the resolution differ? And all else being equal, for sure the larger sensor will always deliver better image quality.


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3 months 1 week ago - 3 months 1 week ago #760493 by TCav

Razky wrote: 35mm and 120 film can be cut from the same stock, so how can the resolution differ? And all else being equal, for sure the larger sensor will always deliver better image quality.


Film of the same type has the same "pixel density", so a larger piece of film has more "pixels", and thus, a greater resolution.


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3 months 1 week ago #760501 by Razky

TCav wrote:

Razky wrote: 35mm and 120 film can be cut from the same stock, so how can the resolution differ? And all else being equal, for sure the larger sensor will always deliver better image quality.


Film of the same type has the same "pixel density", so a larger piece of film has more "pixels", and thus, a greater resolution.

Thank you for confirming my first comment. 


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3 months 1 week ago - 3 months 3 days ago #760503 by TCav

Razky wrote: Thank you for confirming my first comment. 


The "pixel density" of film is constant, regardless of the size of the film. In order for different sizes of film to have the same resolution, they must have different "pixel densities".

Your film analogy is incorrect.

If two different size image sensors have the same resolution, they will have different pixel densities. The larger or smaller pixel densities of the smaller or larger image sensors, respectively, will not have any impact on the clarity of the shot captured. Only the resolution has an impact on the clarity of the shot captured.

So, no.


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