You may gain more light with a 500D. I've never used a close up lens yet, so I can't compare. I need to scan some of the orchids I just shot with the same setup. -jim On Sun, 11 Mar 2001, Pierre Bellavance wrote: > This is impressive. > > Is there an advantage to using the 500D close-up lens rather than the Kenko > 12mm tube? > > Pierre > > At 14:52 3/11/2001 -0600, you wrote: > > >http://www.photo.net/photodb/folder?folder_id=106854 > > > >Done these with a 12mm kenko tube at f8 on a 28-135 at the 135 end. > >I can get as close as 1 1/2 - 4 in. from 28 - 135 mm. I get the best > >magnification at the 28 end. I uses manual focus on these, but it can do > >auto focus with some searching. > > > >Just thought you would like to compare. > > > >Next time I'll experiment with larger f stops. > > > >-jim > >photo.jarnott.com > > > > > >On Sun, 11 Mar 2001, Bob Turner wrote: > > > > > Pierre, > > > > > > | >| I'm thinking of getting the 72mm 500D Close-up adapter for my 28-135 > > > and > > > | >| 100-400 (with step down ring) lenses, and was wondering what > > > magnification > > > | >| ratio these lenses will attain with this attachment. > > > | >| > > > | >| I think that the stronger 250D is not available in 72mm size. > > > | >| > > > | > > > > | >Pierre, > > > | > > > > | >I recently did just that and I have done a couple of comparison > > scans for > > > | >Ken Durling yesterday. You can find the scans at > > > | >http://www.bawbee.co.uk/500D/500d.html I have no scientific data to > > > support > > > | >the scans, they are just comparisons of how far in you can get with the > > > 500D > > > | >attached. > > > | > > > > | >HTH > > > | > > > > > > > | Thanks for the information. > > > | Were these made at 135mm? > > > > > > Yes, sorry, all four shots were taken at the 135 end and there is no > > > cropping. All the shots were scanned at 100 dpi with the same frame size. > > > > > > Bob Turner > > > Dundee, Scotland, U.K. > > > Website : www.bawbee.co.uk > * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
