Dangerous thoughts about glass, and a couple of questions

Larry Colen lrc at red4est.com
Sun Oct 11 17:03:03 EDT 2009


On Sun, Oct 11, 2009 at 03:18:45PM -0400, Miserere wrote:
> 2009/10/11 Larry Colen <lrc at red4est.com>:
> 
> [snip]
> 
> > Question 1: What is it that is different about the 77 that makes it
> > such an amazing lens for shooting portraits?
> 
> >From what I've gathered reading a number of secret internal memos and
> looking at the original optical diagrams...what makes the 77 Ltd so
> special is Japanese pixie dust.
> 
> I think they ran out of it a few years ago, so I don't think they were
> able to use it for the DA* 55.

I'm sorry. Again I apologize for stating things unclearly. It's
something that I was thinking about on my drive home from dancing, and
I didn't get enough sleep (or any actually) before posting.

I'm not so concerned with the mechanism of how it's done. I'm not
planning on making any lenses for my pentax from scratch. I was
curious about which quality in particular, or if you prefer, aspect of
its personality: contrast, bokeh, whatever.

I'm also curious whether the 55/1.4 shares this personality trait, or
if it's more like the 50 or the 31.

    lrc

> 
> 
>  --M.
> 
> 
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-- 
The first step is learning to take great photos, 
the second step is learning to throw away ones that are merely good.
Larry Colen             lrc at red4est.com            http://www.red4est.com/lrc





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