Brian,
I picked up a catalog from Micro-Tools at the camera show Saturday. "Earth's
largest selection of Camera Repair/Restoration Tools & Supplies" Lots of good
stuff including several spanner wrench sets. www.micro-tools.com (800) 359-2878
Regards,
Gary Edwards
"Brian P. Huber" wrote:
> Well, I guess I shouldn't write some of this stuff at 1:00 a.m. I should
> have also included the info that all I removed was the optics "module'. Of
> course, I left in the mechanical part, otherwise I wouldn't have had
> "automatic" extension tubes.
> Since the optic "module" has to be held in place, that portion of the
> teleconvertor is the part that potentially causes vignetting. A standard
> extension tube will have much more open interior space than a modified TC.
> However, it seems to work...
> In removing the optics from the Vivitar, the optics came out cleanly in one
> piece. The Soligor was more difficult to remove. It was also complicated
> by the fact that I don't own a spanner wrench (eBay here I come again!) and
> I used a set of needlepoint pliers to remove the retainers.
>
> -----Original Message-----
> From: Terry and Tracey [SMTP:foxcroft@xxxxxxxxxxxxxxxxxxxxxx]
> Sent: Friday, March 19, 1999 3:22 AM
> To: olympus@xxxxxxxxxxxxxxx
> Subject: Re: [OM] "Cheap" 25mm Automatic Extension Tube
>
> >At this point, I have only tried the "tubes" with a 50mm 1.8 and can see
> no
> >vignetting. I will check this out further and keep you informed. But,
> >from what I see initially, this will work out fine.
> >Now, let's see, I still have a 2x teleconvertor coming through eBay...
>
> You shouldn't get vignetting with tubes. I think it actually decreases any
> already there.
>
> Stacking lenses is the opposite. I need to go to 150mm + tubes or 200mm to
> stop vignetting with a reverse mounted 50mm.
>
> Foxy
>
> Foxy
>
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