Raw vs jpeg

[surfg1mp]

I have tried to download and install the preview extractor, but when ever i try to install it, (7 times) it says it cannot perform this action because a file is missing. Id say i am pretty pc literate and have tried numerous things to locate the missing extension and replace it. Im stumped. Has anyone else had this problem.

I am also having problems with the nikon software. Mainly nikon view, It installs ok, then when i go to use it, it crashes and says windows has experienced an error. Im wondering if its my pc thats unstable or the software. It is a fresh install of xp, so im thinking it should be ok.

I am running lightroom 2, but due to me needing to upgrade RAM it takes a little while to do anything with it.

Help....any suggestions will be welcome.

[johnjohn]

Hi All Adobe product are very memory hunfry and even with 4 gigs of ram after two or three pics open it grinds to a halt.

are you using a laptop??

[surfg1mp]

Originally Posted by johnjohn

Hi All Adobe product are very memory hunfry and even with 4 gigs of ram after two or three pics open it grinds to a halt.

are you using a laptop??

No a desktop....but it needs a revamp or replacing.

[miketoll]

My wife's old XP desktop has a single core and 1 gig of RAM and copes OK so something is wrong with yours.

[johnjohn]

what size files are you dealing with? i often work with files that are 300mb

[johnjohn]

hi as an example a 12.5meg nef converted to tiff @ 600dpi = 294megs

photoshop cs4

[miketoll]

That is a big file, showing my ignorance but why 600dpi? I only ever print at 300dpi as the eye can not discern any more. As I say this is an area I am somewhat hazy about.

[surfg1mp]

Originally Posted by miketoll

My wife's old XP desktop has a single core and 1 gig of RAM and copes OK so something is wrong with yours.

I have a clocked single core running at around 3.4....the ram is the problem as i only have 512mb....this is soon to be upgrade to 2 gig.

[johnjohn]

Old newspapers were printed at 300dpi remember how dotty they were. the average screen has a resolution of 75dpi while quality magazines are printed at 2400 dpi photographs are 2000-4800 or dye sub. So 300dpi will show up as grainy.

When we change the output size of a digital image (without "resembling" or adding pixels) we are only spreading out (or squeezing together) existing pixels. For example: If we have an image that is 3000x2000 pixels and we change its resolution to 1 dpi it will print out at 3000x2000 inches. If we change its resolution to 100 dpi it will be 30x20 inches and at 1000 dpi it will be 3x2 inches. Each image has the exact same number or pixels they are just pushed closer together in some images.

Resembling enables the print to be printed bigger it adds dots to the image “interpolating”

so when printing larger pictures resample them in Photoshop.


Do not confuse DPI with PPI PPI is pixels per inch and usually refers to screen or ccd resolution



hope this helps a little

[johnjohn]

windows XP works better with 1 gig of mem don't forget That 32bit windows can map only 2 gig of mem while 64 gig can map much more, some progs can in fact use the extra mem as storage, but windows has a habit of not releasing all the mem so eventually it grinds to a halt then has to be restarted!!