File type & sizes

Hi Group,

I'm still a film person, but the digital bug is starting to reach me, so a
little information would be extremely helpful, especially as I usually scan
my own 35mm negs into tiff format with a resulting file size of about
250mgs.

I have need to print up to A4 & A3 so I need a fair bit of quality.

Question 1;
Are there camera's that will save in tiff format or do I have to use raw
files? I'm not a great lover of jpg's because of the losses, but use it
sometime for webwork.

Q2; What is the best file size available from say a Nikon D70 or later. I
see reference to raw files at 5mb each how in heavens do you get that big
enough to print A4 or A3 at a quality to be proud of? I would normally print
these at 400 or above.

Thanks in advance to all those that take the time to reply.

David.

Question 1;
Are there camera's that will save in tiff format or do I have to use raw
files? I'm not a great lover of jpg's because of the losses, but use it
sometime for webwork.

Well, you can easily turn those raws to any format you want.


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Depends on how much editing you do. When saved at moderate
compression, jpegs are fine for the original save. The problem comes
when you edit, resave (which recompresses), edit again, resave, etc.
If you print the image as it comes from your camera, with whatever
changes you do in the initial session, and do not save as a jpeg a
second time, you are unlikely to notice the difference. BTW, jpg
artifacts do not generally affect resolution much, they screw up the
color tones and color fidelity.

The jpeg compression is adaptive, and the size of a file depends very
much on scene content, so no single measure of resulting file size is
worth much.


tenchman wrote:
Hi Group,

I'm still a film person, but the digital bug is starting to reach me, so a
little information would be extremely helpful, especially as I usually scan
my own 35mm negs into tiff format with a resulting file size of about
250mgs.

I have need to print up to A4 & A3 so I need a fair bit of quality.

Question 1;
Are there camera's that will save in tiff format or do I have to use raw
files? I'm not a great lover of jpg's because of the losses, but use it
sometime for webwork.

Q2; What is the best file size available from say a Nikon D70 or later. I
see reference to raw files at 5mb each how in heavens do you get that big
enough to print A4 or A3 at a quality to be proud of? I would normally print
these at 400 or above.

Thanks in advance to all those that take the time to reply.

David.