Re: ATM Appropriate barlow ?s

[lifedata@vol.com]

Dwight Elvey <elvey@hal.com> said:

>Of course they use better lens design and
>newer types of glass that has made short Barlows practical.

I think I was missing something else.  By "shorty," you mean short
focal length.

>I have only looked a little into lenses and the tradeoffs

Good luck finding something you don't have to throw away.

>When designers make good Barlows, they
>generally include things like, what f/ratio of primary is and

Are they also set up so only one company makes one style of Barlow? 
Apparently so, or there'd be a clear winner somewhere.

Jim L
1 John 5:13