That'll teach you to bracket your shots although black bird against bright sky your just asking for trouble.

excelent!....now go play with your rubber duck

Extension tubes, to the best of my knowledge only come in sets of three, lengths do vary slightly from make to make, individual tubes are probably available but will no doubt be costly, my set are Jessops own brand "KA" mount tubes 13, 21 and 31mm. there is nothing to stop you using any combination of one or more tubes to get the desired magnification ie a 31 and 21mm tubes will give you as near as possible the 45mm your after.

Contrary to popular belief extension tubes can have an effect on image quality, despite the fact tubes have no glass you have to bear in mind that you will be moving the lens optics away from the focal plane (film or sensor) that the lens was designed to produce the image onto, I hope thats the right explanation But dont worry about it, its not something your going to notice.

EDIT: heres a link to some macro work with the Tamron http://www.birdforum.net/gallery/showgallery.php/cat/500/ppuser/48441

You have made a good choice Clarky, I have the excact same lens and I rate the optics as good as any of my Pentax glass, this is obviously not going to give you 1:1 macro so invest in a set of extension tubes and get snapping.
I think I paid around £95 used from a dealer about three or four years ago, so your price doesn't seem too bad.

I'll see if I can dig some links to shots from it and send you the links.

Sorry quick Edit.......your lens is obviously the KAF mount so fully compatable with the K10D, extension tubes are available as simply K mount (no electrical contacts) KA mount with the contacts and full KAF with AF facility, I would suggest you go for a set of KA as auto focus tends to be a bit iffy at such close quarters.

Never mind George, it'll soon be christmas then you can Bah Humbug all you want
Though I too am dissapointed I missed all the fireworks

Stop moaning and go scratch yourself

Agreed, and is currently (IMHO) way over its price, I would expect to get a genuibe Pentax for not much more.

This one is a far better option;
http://cgi.ebay.co.uk/PENTAX-A-50mm-f1-7-SMC-LENS-ORIG-CAPS-KA-FIT-A-F-DIGI_W0QQ...

WOW! Pete, that is an amazing transformation from the first time I tried to view your website, the only problem is your photography is far too good compared with mine
Keep up the great wotk and I'm sure you will be in great demand.

Well it seems everyone else has posted pics of the day so I suppose I should also bore you with mine

Apart from the very similar shots I think I was the only one to choose this subject, though maybe I could have done with a little more DOF.


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