Hi Jaume,
While I have 4 Ricoh bodies, and some Ricoh lenses,
the one you're looking at I am not familiar with, but
here are my thoughts: (1) If you truly do have a
non-functioning aperature send it back...there are
just too many "good" K-mount lenses out there that
will do the job without the aggravation of repair...if
it was a "rare" lens you may want to get it repaired,
but I doubt this is the case! I bought...unknowingly,
a dud like yours on eBay, and while I did sucessfully
get the thing disassembled , cleaned (I thought!) and
reassembled, it still doesn't work! (2) Is it
possible that the lens you have is a "preset"
lens...which has two "aperature" rings, one which
actually stops down the diaphram and the other which
allows you to reopen the diaphram to focus, prior to
closing it back down before tripping the shutter. If
your have a "preset" lens the "preview" ring does not
have any noticable "f-stop" stops, but rotates without
any hesitation. The
other aperature ring actually sets the aperature. If
you got a "preset" your understand what I'm saying!
Good Luck! Mike
--- Jaume Lahuerta <[EMAIL PROTECTED]> wrote:
> This is the situation,
>
> I won a couple of K mount lenses on a Spanish
> auction
> site. One is a M50/1.7 an the other is a
> XR Rikenon zoom 1/3.5 70-150 Macro (heavy lens by
> the
> way, manual focus as well).
>
> The 50 is in excellent condition and I already paid
> it. However, there seems to be some kind of problem
> with the zoom (unless it works in a different way
> than
> the M50)
>
> The apperture ring doesn't 'stop' very clearly at
> every stop (sorry about my English here), but, the
> most strange is that nothing seems to happen when
> doing this (it seems that the lens is alwais at the
> max. aperture, I can't see nothing 'closing')
>
> I didn't pay for it. The seller let me test it at
> home, with the camera, wich I am going to do
> tonight.
>
> He is asking me about $43, but I think I could
> renegotiate if the lens needs repair.
>
> The question, before testing it at home is:
> Have you ever heard about this lens? How does it
> performs?
> Is it possible that the aperture only works when the
> lens is in the camera?
> Is it worth it to pay it $43 (if the lens finally
> works fine) or to have it repaired?
>
> I should tell him something tomorrow...
>
> Thanks in advance,
> Jaume
> (Mark I copied you because Paul Stregevsky told me
> you
> were the PDML Ricoh expert)
>
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