Feroze,
F magnifier was introduced for SF1/SFX cameras,
FB magnifier was introduced afterwards
I believe them to be identical.
The magnifiers that fit on the K-1000 are the older type.
They work with KM, KX, K2, and the old Spotmatics.
They are abundant on ebay.
I've used the FB magnifier and refconverter A or M on
ME, ME Super, Super Program/Super A, and PZ-1/PZ-1p.
The eyepieces are all identical mounts and they work fine.
The magnifier that fits the K-1000 doesn't work for the later cameras.
The dimensions of the eyepiece are different, slightly smaller I think.
Folks have talked about grinding a bit off of the mount on the old ones.
Other comments are added below...
Regards, Bob S.
[EMAIL PROTECTED] writes:
> > I have the 'F' which looks identical to the FB. As far as I know, they
are
> > identical (but can't be since they have different names?).
>
> --Thats what is says on Boz's site, but I can't tell either
F came with the 'F' series cameras & lenses (SF1/SFX)
FB came later...
> > It fits any bodies since the M series. I don't think it will fit K or
> > earlier series, just like Refconverter M/A. It covers more than the
splite
> > image & microprisms, but I cannot provide any figure. However, I have
> > found the magnification of the Refconverter A seems to provide
> > clearer and slightly higher magnification at 2X setting.
>
> --The eyepiece cover of my MZS fits perfectly on my K1000. The only contact
> it needs to make to work is to able to slide down the rails. Yes/No/Maybe?
I don't know about the MZS, the rails of the KM, KX, K2 &
K-1000 are of a different dimension than the PZ-1p or ME Super.
> > >2] Can you use it in portrait format, using your right eye, the pictures
> > >dont really show you how far back it bends?
> >
> > Why not?
>
> --Well I downloaded the manual for the magnifier F (Theres no FB on the US
> site) and it shows how far the tube bends back, dosn't it get in the way
> when you turn the camera into portrait mode?
Magnifier is a straignt thru thing. Snap it down & get a 2X
view
of the center of the viewfinder. Snap it up and you'll look
thru the
original finder window, not thru it. If it gets in the way,
dismount it.
> > >3] Is it of metal construction or a cheap and nasty plastic thingy?
> >
> > Plastic and rubber body, coated glasses. But the whole thing don't feel
> > cheap. You can even flip it up (but might get in the way depends on the
> > bodies. I can flip it up completely with MX, but not Z-1p. Perhaps the FB
> > fixed this problem? If you want metal, looks for the M, but I have seen
it
> > once only on eBay, and it wasn't cheap (even rarer than Refconverter A).
>
> --I would prefer metal, I'm rather strange that way, the more delicate an
> item, the more likely I'm to break it. I've seen one refconverter at $400-
I
> rather buy a limited lens for that kind of money.