Many plastics are so tough that a bullet will bounce off without a trace. No
scratch, No Dent. Try that with metal!
As I understand from my Camera Repair Shop owner is the METAL screws pull
out or break with out damaging the mount. Put in new screws and you are back
in business.
Cy Galley - Chair, Emergency Aircraft Repair, Oshkosh
EAA Chapter 75 helping fellow aviators
----- Original Message -----
From: <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, February 06, 2001 8:10 AM
Subject: re:A lens that only fits on plastic lens mount
> At 11:54 6.2.2001 +0000, you wrote:
> >Seth says:
> >My guess is that under similar use, the metal lens mounts will
> >last substantially longer than plastic ones.
> >
> >I reply:
> >
> >Agreed. Looks better, too, in most "classic" applications. But
> >when do you know if it is worn out?
> >
> >Another scenario: You drop your camera and lens. Both mounts
> >are metal and both are damaged because they are of approximately
> >equal strength, which is exceeded by the accident. But if one
> >was designed to fail under such extreme conditions, and that
> >part was extremely cheap to replace, is that a "better" part?
> >Should the "fail" part be on the lens?
> >
> >mike
>
> Another plus for metal: With enough shock, plastic will shatter. You can't
> much repair that. My friend accidentaly dropped an old Exakta lens (about
1
> kg heavy) onto hard stone floor, from his standing height. It landed on
the
> mount. One of the bayonet blades got twisted a bit - couldn't be mounted
in
> the Exakta. A mechanist was able to either twist it back or file it away,
> and now it mounts into his Exakta as when new.
> If made with plastic mount, it would be repairable ONLY AS LONG AS THE
> PARTS ARE AVAILABLE. Anybody got parts for 50 years old lenses ;-)
>
> Frantisek
>
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