960p larger vertical

[aurmol 0]

Did anyone notice the 1280x960p can show more vertical than even 1920x1080p?

1280x960p has 4:3 aspect ratio

1920x1080p has 16:9 aspect ratio (same view of 1280x720p but higher resolution)

 

Supposed they have the same field of view. The 1280x960p can show more vertical. In the 1280x720p mode, they just cut the higher and lower part. Someone says most manufacturer uses 1280x1024 chip in producing 720p and 960p. So 960p can really show more? Note 1080p is just more resolution at same field of view of 720p. To make the 1080p show as much as the 960p. It should become 1920x1440p. I am not talking theoretical.. I'm comparing the 960p vs 720p of the dahua ip cam and noticed the 960p has more vertical field available. Is this really true all 960p cam have more vertical field (pls. don't confuse this with the 960h of the analog).

[buellwinkle 0]

Yes, many 720P cameras have 1.3MP sensors, but with 720P you are only using 1.0MP. The reason is aspect ratio where 720P is 16:9 and 1280x1024 is 4:3 and sometimes it's 1280x960. It's just marketing because they can call 1MP/720P "HD" but higher resolution 1280x960 is not "HD". I always use my "720P" cameras in the highest resolution and most of mine do 1280x1024 which like you said, is pretty darn close in vertical pixels to 1080P, although not as wide.

 

Most 1080P cameras have a 2048x1536 sensor and can be used that way and I use all of mine that way to get the extra 50% pixels and the 4:3 format. Again, marketing, 1080P is "HD", 3MP is not "HD".

 

Don't even know where the "P" comes from as it has to do with progressive scan on a display and that has nothing to do with the cameras ability to output a certain pixel count, again marketing. I even hate to call it resolution as it implies a 720P (or 960P as you call it) actually has 720 or 960 lines of resolution optically where all it really states is that the image will be 720 (or 960) pixels tall.

[aurmol 0]

Yes, many 720P cameras have 1.3MP sensors, but with 720P you are only using 1.0MP. The reason is aspect ratio where 720P is 16:9 and 1280x1024 is 4:3 and sometimes it's 1280x960. It's just marketing because they can call 1MP/720P "HD" but higher resolution 1280x960 is not "HD". I always use my "720P" cameras in the highest resolution and most of mine do 1280x1024 which like you said, is pretty darn close in vertical pixels to 1080P, although not as wide.

 

Most 1080P cameras have a 2048x1536 sensor and can be used that way and I use all of mine that way to get the extra 50% pixels and the 4:3 format. Again, marketing, 1080P is "HD", 3MP is not "HD".

 

Don't even know where the "P" comes from as it has to do with progressive scan on a display and that has nothing to do with the cameras ability to output a certain pixel count, again marketing. I even hate to call it resolution as it implies a 720P (or 960P as you call it) actually has 720 or 960 lines of resolution optically where all it really states is that the image will be 720 (or 960) pixels tall.

 

In typical 1080p ip cam which you said have 2048x1536 sensor.. there is no option to use it in the menu? how do you access the 2048x1536 and get 50% more extra pixels?

[buellwinkle 0]

Some do, some don't. The Hikvision 1080P cameras like the ds-2cd2032-i and similar have a 2048x1536 option. There's some cameras where they purposely lock you to 1080P to avoid competing with a higher end model. For example, Dahua does this where they put in a 3MP sensor, it says so in the specs, but limits you to 1080P. Same with 720P cameras, some offer the option of 1280x960 or 1280x1024 and some don't even if they have the 1.3MP sensor.

[jhonovich 0]

For each 16:9 resolution, there is typically a 4:3 resolution alternative that has the same horizontal AoV but a greater vertical / 'tall' AoV.

 

Like so:

 

IPVM has a free full test report on 4:3 vs 16:9 aspect ratio coverage areas.