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
>
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