1D Pixel Question.

Hi Everyone.

I have recently been browsing through the latest edition of the Canon “Eos” magazine. In an article/advert for the 1D body it says “The high resolution XL CCD uses 4.15Mb to create a true 11.7Mb file in a photographic 2:3 aspect ration”. Can somebody explain in plain simple English language, what this means? :roll:

I understand the more pixels you have the better the quality you get, but is the above the reason why so many pro wild life photographers use this camera and get such brilliant images. For example Rousey and Arthur Morris, just to mention but two. One from either side of the big pond.

Many thanks in anticipation

John F.

John F wrote:“The high resolution XL CCD uses 4.15Mb to create a true 11.7Mb file in a photographic 2:3 aspect ration”.

I bet is said it uses a 4.15 mp CCD to create an 11.7 MB file.
I'll answer the question if that's what it says. If not, I think they misprinted it.

Hi Anthony.

I have checked the extract from the article, and yes I have copied across correctly.

However if we assume they have made a typing error and left out the little all important word "a", I would be very grateful of your explanation.

Thanks for coming back so quickly.

Regards

John F

The CCD on the 1D produces 2,464 x 1,648 images. These images are considered to be 11.7 MB files by photoshop when using 8 bit RGB. The 11.7 MB is the size the file will be written to disk to save the image using 8 bits per channel to save each pixel of the 4.15 mp CCD.

The problem with the original phrase is the 2,464 x 1,648 is 4.15 million (or mega) pixels. The 11.7 MB reads as 11.7 million (or mega) bytes. Each byte is 8 bits. So the first number should have had MP after it not MB.

Help any?

Tony has it right - that's exactly what that means.

Hi Guys.

Many thanks for all the info and advice.

Keep on clickin.

John F