From: Ray Fischer on
Rich <none(a)nowhere.com> wrote:
>Robert Coe <bob(a)1776.COM> wrote in
>> Paul Furman <paul-@-edgehill.net>

>>: > Don't be snarky. Rich has no particular reason to know the
>>: > difference berween aperture and focal length. Neither of them is
>>: > made of plastic.
>>:
>>: I disassembled a 28-200 old-ish film super-zoom and it has plastic
>>: aperture blades. I wouldn't be surprised if that's used in high end
>>: lenses too.
>>
>> They wouldn't rust, and you might not have to oil them. And oil that
>> isn't there won't drip onto a lens element.
>
>The more moving plastic parts in a lens, the greater the problems from
>plastic dust, which is WAY worse than metal dust as it is static charged,

Where did you get your degree in materials engineering?

--
Ray Fischer
rfischer(a)sonic.net

From: Peter Huebner on
In article <4B4EBE6B.E8507DEC(a)concentric.net>, jtur(a)concentric.net
says...
>
> Yes, indeed; I constantly dream of owning a Samyang "object lens," with
> those fantastic "coutings" adorning it.
>

I've never been able to quite grasp how a company that's spent hundreds
of thousands or millions on a production line, and piles on r&d, will
balk at a few thousand for a good translator.

It grates even more when I see authors, who after all should be
considered professionals, try to use foreign language in a novel and
fail to adequately get syntax, grammar, and spelling checked.

-P.

From: Chris Malcolm on
Peter Huebner <no.one(a)this.address> wrote:
> In article <4B4EBE6B.E8507DEC(a)concentric.net>, jtur(a)concentric.net
> says...
>>
>> Yes, indeed; I constantly dream of owning a Samyang "object lens," with
>> those fantastic "coutings" adorning it.
>>

> I've never been able to quite grasp how a company that's spent hundreds
> of thousands or millions on a production line, and piles on r&d, will
> balk at a few thousand for a good translator.

> It grates even more when I see authors, who after all should be
> considered professionals, try to use foreign language in a novel and
> fail to adequately get syntax, grammar, and spelling checked.

It grates even more when they make a mess of their native language :-)
Spell checkers mean that they rarely spell the words wrongly these
days, but instead just spell the wrong word right :-)

--
Chris Malcolm