RAW Output Options

[Eponym]

For some jobs I need to deliver large quantities of RAW files to my editors and the final output resolutions are tiny. My Canon 5D MKII works well with sRAW2, which downresses the RAWs to 5.5MP. Does Sony offer anything like this besides converting to JPEGs or crop mode?  

[Gilgenberg]

the Sony A7S create 12MB Raw files

[adwb]

Might be missing something here but if a raw is so compressed is it any more editable than a JPEG of the same size?

I suppose WB would be but you can get round that with a reference shot included in each batch

[Golem]

`   

A compressed raw file uses data compression. It's

a compacted digital file. In that same context, a jpg

isn't really compressed. The file size is smaller so

it's become common to refer to it as compression,

but it isn't compression of data that shrinks the file.

  

It's the DISCARDING of data that shrinks jpg files. 

   

Referring to jpegging as compression is very much  

like saying cropping is compression. Each discards 

image elements, resulting in a smaller file. Both are

non-reversible ... altho different ... operations. Point

here is that both discard image elements. Cropping

discards the outer edges, while jpegging discards

elements from within the existing frame, elements

such as tonal transitions and small details.

 

Compression of stored data allows restoration of

the data. Discarding data obviously will not. A jpg

is a very changed image. Compressed data is still

the SAME data. Raw files are not images. They're

just unprocessed data from the sensor.  

   

--------------------------------------------------------------- 

 

     

The above is slightly simplified, not oversimplified.

 

We can go into lossy vs lossless compression yet

still be discussing raw DATA. Internet Experts will

refer to jpgs as very lossy compression, but what

jpgs REALLY are is very lossy image processing.

Raw files are data that has not yet undergone any

image processing.  

  

`

[Golem]

Might be missing something here but if a raw is so compressed

is it any more editable than a JPEG of the same size?

...........

 

Canon S-RAW is not compressed to a smaller files size.

It's just a smaller file. Less data is recorded in the first

place. S-RAW simply means "Small Raw". It's a low MP

image. The majority of pixels are simply not used. When

the OP refers to "5.5MP" raw thaz no typo. Easy to think

it's intended to read 5.5MB [compressed from 40MB] but

in this case "MP" means MP, no typo.

 

@Eponym:

Sonys do not have S-RAW. I have a Canon that does it

and AFAIK it's a Canon-only feature.

[Eponym]

Thanks for the info, man. I would love to make the jump, especially for viewfinder focus assistance, but sadly doesn't work out when I have to upload 300-600 RAWs through Comcast.