What's the typical file size (or expected range of file sizes) of a full
resolution RAW image out of a 10D.
Just trying to get the right CF card in ahead of camera delivery!
TIA
--
Alan F Cross
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What's the typical file size (or expected range of file sizes) of a full
resolution RAW image out of a 10D.
Just trying to get the right CF card in ahead of camera delivery!
TIA
--
Alan F Cross
I get 80 with a 512MB card (smallest embedded JPG).
>>Alan F Cross <alanxproaxis.demon.co.uk> wrote:Quote:
Quote:
>>
>>What's the typical file size (or expected range of file sizes) of a full
>>resolution RAW image out of a 10D.
From the same camera? This does not compute, by definition RAW is the actualQuote:
> John P Sheehy <JPSno.komm>
>
>4.3MB is the smallest Canon RAW I've had, and 13.86MB is the largest.
sensor array information and will be the same size every time.
Shouldn't matter, RAW is RAW.Quote:
>The 4.3 was an ISO 100 noise test with a short exposure and the lens cap
>on; there was a lot of redundancy because most of the red values were
>exactly zero, and most of the blue and green were the same small value
>due to the LEDs on the viewfinder leaking into the sensor area.
>
>The 13.86 is an ISO 3200 shot of the water and mist coming off of a
>fountain at 1/4000s.
The only reason the Canon 10D RAW files vary from 6 - 8 Mb is that there's a
second file, a jpeg, attached. Otherwise they would all be the same size
regardless of what you shot. Are you saying your Canon 10D RAW files vary from
4.3 Mb to 13.86 Mb, or were these file sizes from two different Canon cameras?
Bill
"Bill Hilton" <bhilton665aol.comedy> wrote in message
news:20030714171815.25739.00000240mb-m17.aol.com...actualQuote:
>Quote:
Quote:
> >>Alan F Cross <alanxproaxis.demon.co.uk> wrote:
> >>
> >>What's the typical file size (or expected range of file sizes) of a full
> >>resolution RAW image out of a 10D.
>>Quote:
> > John P Sheehy <JPSno.komm>
> >
> >4.3MB is the smallest Canon RAW I've had, and 13.86MB is the largest.
> From the same camera? This does not compute, by definition RAW is the
aQuote:
> sensor array information and will be the same size every time.
>>Quote:
> >The 4.3 was an ISO 100 noise test with a short exposure and the lens cap
> >on; there was a lot of redundancy because most of the red values were
> >exactly zero, and most of the blue and green were the same small value
> >due to the LEDs on the viewfinder leaking into the sensor area.
> >
> >The 13.86 is an ISO 3200 shot of the water and mist coming off of a
> >fountain at 1/4000s.
> Shouldn't matter, RAW is RAW.
>
> The only reason the Canon 10D RAW files vary from 6 - 8 Mb is that there's
fromQuote:
> second file, a jpeg, attached. Otherwise they would all be the same size
> regardless of what you shot. Are you saying your Canon 10D RAW files vary
cameras?Quote:
> 4.3 Mb to 13.86 Mb, or were these file sizes from two different Canon
Bill,Quote:
>
>
> Bill
Canon raw files are compressed -- although lossless. The DO vary in size.
Sorry John, I was totally wrong about RAW being uncompressed. After reading
Don Coon's post I checked the actual size of some of our RAW files and found as
much as 20% differential in file sizes, which I never really noticed before.
Obviously I never shot in the extremes you did or I'd have perhaps noticed.
You were right, I was wrong, sorry for my erroneous post. I eat those words!
(Tastes like crow).
Bill
Quote:
Quote:
Quote:
>>>Alan F Cross <alanxproaxis.demon.co.uk> wrote:
>>>
>>>What's the typical file size (or expected range of file sizes) of a full
>>>resolution RAW image out of a 10D.
Quote:
Quote:
>> John P Sheehy <JPSno.komm>
>>
>>4.3MB is the smallest Canon RAW I've had, and 13.86MB is the largest.
Quote:
>From: [email]bhilton665aol.come[/email]dy (Bill Hilton)
>
>From the same camera? This does not compute, by definition RAW is the actual
>sensor array information and will be the same size every time.
>From: "Don Coon" [email]coondw_nospamhotmail_dot_.com[/email]
You're right Don, sorry. The files we have were much closer together in sizeQuote:
>Bill,
>
>Canon raw files are compressed -- although lossless. The DO vary in size.
that what John Sheehy posted so I assumed the numbers in the Canon manual were
gospel, but looking closely at the file sizes I see around 20% delta even in
roughly the same light. My mistake, John was right.
Bill
> Huh? I get 62 on my 512 meg CF card. I think I'm using smallestYup, Canon 10D. JPG set to smallest embedded. Actually, this numberQuote:
> embeded, better check...
>
> Yep, smallest.
>
> You using the 10D or another camera?
will change if you change film speeds. My default is ASA 100. A
higher speed will bump the number down.
In message <20030714171815.25739.00000240mb-m17.aol.com>,
[email]bhilton665aol.come[/email]dy (Bill Hilton) wrote:
Same camera. 10D.Quote:
>Quote:
>>4.3MB is the smallest Canon RAW I've had, and 13.86MB is the largest.
>From the same camera? This does not compute, by definition RAW is the actual
>sensor array information and will be the same size every time.
As I understand it (maybe I dreamt this), the RAW data is separated into
bitplanes and run-length encoded, so when the values are highly
redundant, they compress well, and when they are not redundant at all,
the encoding is an inefficient waste of filespace.
Yes, but I don't think RAW is a simple matrix.Quote:
>Quote:
>>The 4.3 was an ISO 100 noise test with a short exposure and the lens cap
>>on; there was a lot of redundancy because most of the red values were
>>exactly zero, and most of the blue and green were the same small value
>>due to the LEDs on the viewfinder leaking into the sensor area.
>>
>>The 13.86 is an ISO 3200 shot of the water and mist coming off of a
>>fountain at 1/4000s.
>Shouldn't matter, RAW is RAW.
Same camera.Quote:
>The only reason the Canon 10D RAW files vary from 6 - 8 Mb is that there's a
>second file, a jpeg, attached. Otherwise they would all be the same size
>regardless of what you shot. Are you saying your Canon 10D RAW files vary from
>4.3 Mb to 13.86 Mb, or were these file sizes from two different Canon cameras?
--
<>>< ><<> ><<> <>>< ><<> <>>< <>>< ><<>
John P Sheehy <JPSno.komm>Quote:
><<> <>>< <>>< ><<> <>>< ><<> ><<> <>><
In message <20030714232805.01238.00000308mb-m26.aol.com>,
[email]bhilton665aol.come[/email]dy (Bill Hilton) wrote:
Never believe what you read, if you can test for yourself.Quote:
>You're right Don, sorry. The files we have were much closer together in size
>that what John Sheehy posted so I assumed the numbers in the Canon manual were
>gospel, but looking closely at the file sizes I see around 20% delta even in
>roughly the same light. My mistake, John was right.
--
<>>< ><<> ><<> <>>< ><<> <>>< <>>< ><<>
John P Sheehy <JPSno.komm>Quote:
><<> <>>< <>>< ><<> <>>< ><<> ><<> <>><