^^ +1 to what Garbz said.
I shoot a lot of macro - where using smaller apertures (bigger f numbers) for depth of field is important most of the time - and I tend to have f13 as the smallest aperture I work with (sometimes using f16, but not often). Essentialy once you start getting smaller apertures than around f8 diffraction starts to take place and that softens your final image, no matter how well you took the shot. As I say I generally find that up to around f13 you still get very usable images, but going any smaller and what you gain in depth you quickly lose in sharpness.*
Also a point - when it comes to landscape work (becuase this is where manythink you need ultra small apertures to get the depth) you don't need to use ultra small apertures, but what you do need to learn is of "hyperfocal distance and focusing". Google/search and ask around that if you need more info on the subject
Further to embed the images into the site from flickr click the allsizes button in flickr (the little + symbol above your image. In the new window scroll down and copy all of the image code (the second box of tex, the smaller).
Then in a post in here put:
[ img ] paste the link here [ /img ]
without any spaces and it should show the image here. Typically you don't want to show images greater than 800pixels on the longest side - so you can select the smaller sizes on the flickr page - embed the smaller one and then copy the link for the larger and just paste it below the tags. It will appear as a hyperlink linking people to the larger version.
*note this a very rough working - specific diffraction limits are defined by the camera body, lens and also the personal standards and output of the photographer in question.
![[No title]](/data/xfmg/thumbnail/33/33874-2ac673051e59157729970fcb9b637b43.jpg?1734164219)
