FZ20: TIFF and JPG?

[Bill Markwick]

My apologies if this has been covered already. I had never used my FZ20's TIFF format, and decided to try it out. Not only does it make a 14MB TIFF image, but it also makes a 1MB JPG along with it - and this is for each shot.

That could be handy, but sure uses up card space. What's the extra JPG for?

Regards,
Bill

[Riley]

Joint Photographic Experts Group
the family of image formats under JPEG
the common file extensions for this format are .jpeg .jpg .JPG although .jpg is the most common on all platforms

Riley

[Sintares]

I am sure he knows what jpgs are.

He may actually want you to tell him why when taking a pic saved as a tiff, he gets a jpg as well, since if he wanted jpgs he would be saving as jpgs.

I believe he regards the 1Mb jpg as a waste, as for every 14 tiff shots he has 14 jpgs, taking up the space he could be using for another tiff file.

[genece]

Only my opinion but save a lot more room and use the best quality JPEG and forget tiff altogether.

[John_Reed]

You can't do anything about the "wasted" JPEG file that's issued with each TIFF file. But in my opinion, the bigger waste is the huge TIFF file in the first place. I think, first of all, that the camera probably uses the auxiliary JPEG to drive the displays, the LCD and the EVF. The TIFF file really has no more meaningful info than will a High-Quality JPEG, and because it takes up so much memory space, and slows down the camera so much for shot to shot times, burst rate, etc., it is less than worthless.

[Bill Markwick]

Thanks to everybody for the replies. I guess the jpg is for the LCD and so on. It also has a more complete EXIF file.

But I agree that the TIFF format is useless. End of experiment.

Regards,
Bill

[longroad]

I wouldn't call TIFF useless as its a lossles format.

That said though, I experimented with zooming right in on an exact same shot, one high quality jpeg and the other TIFF, and surprisingly the tiff was just as pixelated as the jpeg when zoomed in many times.

[genece]

IMHO
If you can not see a difference, then its not much use for sure.
Perhaps if you keep opening and editting a file over and over again...there may be some use to Tiff ,but out of the camera ...I see no use in it at all.
I just edit a copy and that way I always have the original.

I wouldn't call TIFF useless as its a lossles format.

.

[andyn]

I agree that the TIFF format doesn't seem to offer any advantage. You may see a difference though, even if we don't. I believe the JPG is provided as it gives you a smaller image (in memory terms) for quick review on PCs that may be slower with the larger file. I suspect also that the camera needs the jpg to display on the camera's screen to avoid it having to process the 14meg image. A similar facility is offered on DSLRs that offer RAW format - they'll gererally offer a small jpg version as well (although you can turn the option off on my D50).

[longroad]

How about for printing purposes? Im wondering if TIFF is superior to JPEG when printing large sized photos, I've never done it myself so really dont know.