Summicron hood advice

[Marc-A.]

Hello guys,
I'm waiting for a summicron 2/50 (2nd version I think), and I would like to purchase a hood but I wonder which hood would fit it. I don't know the difference, if any, between the IROOA and the 12585 hood.
I wonder also if the standart vented hood, so common and cheap on ebay, works fine on the 'cron.
Need your help.
Marc

 

[rover]

I believe all of the hoods for the 50 Summicrons will fit all of the 50 Summicrons. All that I have, including the IROAA and the more modern vented deal will fit all that I have/had, collapsible, rigid, iv and dr.

 

[plummerl]

The main difference between the two, would be that the 12585 is vented. The cheap (but very nice quality) vented hoods on EBAY are generally the threaded kind. The two Leica ones are not (but are reversible) and will fit on over filters. I have the 12585 with the cap that fits on the hood when reversed, and like it a lot.

 

[Marc-A.]

Thanks a lot. If there is no major problem with it, I'm going for a cheap vented hood for the moment; "buy it now" is a strong argument ;-)
I'll find the 12585 later.
Many thanks again,
Marc