Is that Whitworth or AF?

The seller (who is probably a forum member) will probably say the same thing about your Sigma 24mm

I'm fixing the car in the morning ...... so I'll
post a picture of my Spanners ....

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It looks like this.... which is basically a weed, but it
does attract a lot of bees.




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It was in Jan. 2011 ..... Now! .... Rusted away completely!

I can't believe that you are correcting Gareth's English
and getting the ladies name wrong I don't think
Liz would be impressed with you George

Perhaps they will get a famous designer of airline plastic
cutlery to design it or see if Contax have any AX bodies left
that they can adapt... even keep the inbody AF

http://www.youtube.com/watch?v=MjgV34PzKTA

Hopefully unlike Contax they manage to survive..

Just checked the Heliopan 58mm short hood on a Sigma 24mm f/2.8 at f/2.8, f/8 and f/11 and it doesn't vignette. It doesn't even vignette with the Sigma butterfly hood on top of the Heliopan. The Heliopan protrudes 14.5mm.

The Chinese 49mm protrudes 20.5mm. I'm going to order a 52mm to see
if it will work with the Sigma 24mm.

Some people on the US forum are using the Heliopan 58mm short hood on the 31mm LTD, so it mustn't vignette. See pictures of how the cap still
fits... link

A 28mm on APS-C is very close to a "Standard Lens" (35mm) in terms
of angle of view so the "Standard Lens Hood" may be OK.

In fact I use a Heliopan 52mm Hood on my SMC 28-80mm with
a 58-52mm stepdown ring and it doesn't vignette and the
a 52mm lens cap fits the Heliopan Hood. Oddly the outside
diam. of the Heliopan 52mm is exactly the same as the barrel
of the SMC 28-80mm

This is a 46mm ebay_link Heliopan hood which although an odd
size has some good photos showing how they manage 46mm at
both ends.

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