K1 1:1 Aspect Ratio

[JDC1958]

I am not a math head so if the question is elementary I apologize in advance. I just took a few pictures using the 1:1 aspect ratio and from what I can tell from the RAW image size they are very similar, identical to be honest just giving them a quick look, to the normal FF images I have shot.

Can someone tell me how many pixels I lose shooting 1:1 vs FF? I cannot get an idea from the raw image size.

--
Common sense is common knowledge; not everyone's common knowledge is the same.

 

[Mark Ransom]

I don't have a K-1, but I assume it would be 4912x4912.

The RAW file doesn't get clipped for 1:1 mode, so you can get the cropped parts back if you need to.

 

[JDC1958]

I don't have a K-1, but I assume it would be 4912x4912.

The RAW file doesn't get clipped for 1:1 mode, so you can get the cropped parts back if you need to.

I don't quite understand that but I have not tried to do any PP work to the shots. I applied a little basic math on my own, and came up with this.

1:1 is same as 2:2, so I would be cropping away about a 5th of my pixels; 3:2 to 2:2. Which would still give me roughly a 29MP outcome from my 36MP Camera.

 

[Jim in Hudson]

I don't have a K-1, but I assume it would be 4912x4912.

The RAW file doesn't get clipped for 1:1 mode, so you can get the cropped parts back if you need to.

I don't quite understand that but I have not tried to do any PP work to the shots. I applied a little basic math on my own, and came up with this.

1:1 is same as 2:2, so I would be cropping away about a 5th of my pixels; 3:2 to 2:2. Which would still give me roughly a 29MP outcome from my 36MP Camera.

 

[JDC1958]

I don't have a K-1, but I assume it would be 4912x4912.

The RAW file doesn't get clipped for 1:1 mode, so you can get the cropped parts back if you need to.

I don't quite understand that but I have not tried to do any PP work to the shots. I applied a little basic math on my own, and came up with this.

1:1 is same as 2:2, so I would be cropping away about a 5th of my pixels; 3:2 to 2:2. Which would still give me roughly a 29MP outcome from my 36MP Camera.

--
Common sense is common knowledge; not everyone's common knowledge is the same.

The OOC crop only affects the JPEG file, not the RAW file. You would lose 1/3 of the JPEG image making it 24 MP. However, you aren’t losing resolution, just real estate on the sides.

Thanks for the reply and now I see what you mean about 24MP.

My resolution would still be the same in the center no matter what crop I use. I chose the K1 for its IBIS and resolution; knowing I could crop 1/2 the image away if need be and still have a decent resolution that would make a nice print.

I am interested in square prints and also a 5:4 aspect ratio is why I am asking. It confused me to see the 1:1 the same size as the FF Raw file. I expected the 1:1 to be smaller than the FF ( no crop ).

--
Common sense is common knowledge; not everyone's common knowledge is the same.

 

[66GTO]

When you use the 1:1 crop with the K1, are their any frame lines in the viewfinder?

 

[JDC1958]

When you use the 1:1 crop with the K1, are their any frame lines in the viewfinder?

 

[left eye]

I don't have a K-1, but I assume it would be 4912x4912.

The RAW file doesn't get clipped for 1:1 mode, so you can get the cropped parts back if you need to.

I don't quite understand that but I have not tried to do any PP work to the shots. I applied a little basic math on my own, and came up with this.

1:1 is same as 2:2, so I would be cropping away about a 5th of my pixels; 3:2 to 2:2. Which would still give me roughly a 29MP outcome from my 36MP Camera.

--
Common sense is common knowledge; not everyone's common knowledge is the same.

The OOC crop only affects the JPEG file, not the RAW file. You would lose 1/3 of the JPEG image making it 24 MP. However, you aren’t losing resolution, just real estate on the sides.

Thanks for the reply and now I see what you mean about 24MP.

My resolution would still be the same in the center no matter what crop I use. I chose the K1 for its IBIS and resolution; knowing I could crop 1/2 the image away if need be and still have a decent resolution that would make a nice print.

I am interested in square prints and also a 5:4 aspect ratio is why I am asking. It confused me to see the 1:1 the same size as the FF Raw file. I expected the 1:1 to be smaller than the FF ( no crop ).

The image data of the raw file in 1:1 crop mode is identical to the FF 3:2 file. They are identical. The only difference is in the metadata, when you choose 1:1 crop this is noted in the metadata and is seen by some raw processing software from where you can then enable the crop when developing the raw.

For in-camera jpegs the resulting file will be cropped and file will be smaller. The raw file is not cropped, it just contains data to say you made a crop preference, but leaves the actual crop choice up to you when processing.

--
Common sense is common knowledge; not everyone's common knowledge is the same.

 

[Alex Sarbu]

I don't have a K-1, but I assume it would be 4912x4912.

The RAW file doesn't get clipped for 1:1 mode, so you can get the cropped parts back if you need to.

I don't quite understand that but I have not tried to do any PP work to the shots. I applied a little basic math on my own, and came up with this.

1:1 is same as 2:2, so I would be cropping away about a 5th of my pixels; 3:2 to 2:2. Which would still give me roughly a 29MP outcome from my 36MP Camera.

--
Common sense is common knowledge; not everyone's common knowledge is the same.

The OOC crop only affects the JPEG file, not the RAW file. You would lose 1/3 of the JPEG image making it 24 MP. However, you aren’t losing resolution, just real estate on the sides.

Thanks for the reply and now I see what you mean about 24MP.

My resolution would still be the same in the center no matter what crop I use. I chose the K1 for its IBIS and resolution; knowing I could crop 1/2 the image away if need be and still have a decent resolution that would make a nice print.

I am interested in square prints and also a 5:4 aspect ratio is why I am asking. It confused me to see the 1:1 the same size as the FF Raw file. I expected the 1:1 to be smaller than the FF ( no crop ).

The image data of the raw file in 1:1 crop mode is identical to the FF 3:2 file. They are identical. The only difference is in the metadata, when you choose 1:1 crop this is noted in the metadata and is seen by some raw processing software from where you can then enable the crop when developing the raw.

Precisely; unlike the APS-C crop where you get the cropped image in the RAW file (and that's why the higher burst speed), with 1:1 you get the full image data.

By default, you'd be seeing the 1:1 cropped image in the RAW processor; but as noted you can recover the full image in some RAW processing software, like Pentax' DCU or Silkypix. It seems that you cannot do that in Lightroom.

For in-camera jpegs the resulting file will be cropped and file will be smaller. The raw file is not cropped, it just contains data to say you made a crop preference, but leaves the actual crop choice up to you when processing.

I would say, it gives you the choice of undoing the crop - if the RAW processing software supports it.

Alex