Bob, Ummm, so, is there a setting in the camera for choosing between JPEG and TIFF? You seem to be saying no. I don't recall being given a choice when I loaded pics on to my computer. They were all stored as JPG.
Thanks, Menu challenged Roger From: Bob Werre Sent: Friday, October 22, 2010 2:05 PM To: [email protected] Cc: Roger Nulton Subject: Re: {S-Scale List} Re: Cameras I'm back on line now, my Mac guy and myself had to rearrange four computers. I added one which booted off of the system. Very expensive but configuring backup hard drives to run remotely, rearranging licenses quickly gets beyond my ability. Hopefully this will last until the new version of something comes out--maybe a couple weeks tops! Anyway when you see a JEPG file size it will be compressed by throwing away data. If you did a TIFF conversion the PC computer added data. Doing that is going to make any retouching/saving and then additional retouching/saving possible without much deterioration that would occur with a JEPG alone. The benefit of JEPG's is that once you have reached the final stage of your work, it's okay to save the final version as a JEPG if your sure you or anybody else will never do any additional revisions. Of course JEPG's are the standard for emailing images because they are compressed to where most email programs can handle several reasonable sized images. I'm not sure why your computer froze up with a TIFF, but perhaps it was too memory intensive or maybe there wasn't a program to actually open it--like PhotoDeluxe, PhotoShop or the camera's own software program. Most cameras today don't have a TIFF option, instead they are saved as a RAW file. A typical 12MP camera saving a TIFF in 16 bit will create a 70mg file. That will fill a memory card quickly. The same camera saving a RAW file will write somewhere around 10-12 mg each, so a 1 gig card will save about 32 images or about what a roll of 35mm film would hold. Most semi-pros and nearly all pros will shoot RAW whenever possible, with the idea of delivering a TIFF, PhotoShop doc, or JEPG to the end user. One last word--all cameras shoot in RAW. What happens to that image when sent to the camera's computer determines how much quality is kept or thrown away. Bob Werre BobWphoto.com > > Bob, > > I would like to see this discussion too. The issue of JPEG vs. TIFF is > confusing to me. I was sent some plans in TIFF a while back and they > locked up my computer when I tried to open them: it was not an antique > computer either<g>. When I save pics from my digital camera, they are > identified as JPG in the basic photo program that I like to use. They > look pretty clear to me, even when enlarged for cropping. > > Roger Nulton > > From: shabbona_rr > Sent: Friday, October 22, 2010 7:49 AM > To: [email protected] <mailto:S-Scale%40yahoogroups.com> > Subject: {S-Scale List} Re: Cameras > > OK, this is a technical question, and then I'll drop the subject > because it is only vaguely related to trains. > > Due to the discussion on this list, I took a 4.26 MB JPEG photo and > saved it as a TIF. According to the properties, the TIF is 26.1 MB. > How did changing the format raise the size of the photo to that > degree? Also, I didn't really see much difference in the quality of > the photo in either format. > > I would really like to know these things, and study them the best I > can, but my comprehension is sometimes a little limited without some > outside help. I didn't know how hard it is to draw a straight line > until I tried to do it with a computer, and now I'm having the same > problem with taking a picture. > > Bob, I attended your clinic in Duluth, and a lot of my questions all > began to come together, but to much time elapsed between then and when > I got to try the techniques you described. > > Offline responses welcome to save the list for more important things, > like '56 Fords (with Overdrive, I might add), '73 Mustangs, and DCC, > etc. :<) > > Bob Nicholson ______________________________________________ > [Non-text portions of this message have been removed] [Non-text portions of this message have been removed] ------------------------------------ Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/S-Scale/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/S-Scale/join (Yahoo! ID required) <*> To change settings via email: [email protected] [email protected] <*> To unsubscribe from this group, send an email to: [email protected] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
