Bob: So, when I insert a media card in the card reader on my camera, the thumbnails automatically come up as JPEGs. If I try to save them as TIF, I understand I lose some quality. How do I change that?
Bob Nicholson _____________________________________ --- In [email protected], Bob Werre <b...@...> wrote: > > 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] > ------------------------------------ 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/
