Re: [M]: Masuyama eyepieces
| Subject: | Re: [M]: Masuyama eyepieces |
| From: | Gene Horr |
| Date: | Sun Aug 01 05:06:48 1999 |
Ric L Ecker wrote:
>
> Chris..............give the Astro Physic scopes a
> try..................................they do build a true Apo with three
> elements, the Tak. that Ive seen call them Apo but they are two element
> ED or fluorite which for the most reasonable is as close to a true Apo
> but not quite.
This is utter bull. Apochromatic refers to level of colour correction.
Show one Tak photograph that shows even the same amount amount of
colour correction as an AP much less one that has less.
Name one source to back up the above. Even R&V, which were big time
buddies with Roland C., had to admit that flourite will allow doublet
APOs.
Gene Horr
genehorr@texas.net
>
> Chris..............give the Astro Physic scopes a
> try..................................they do build a true Apo with three
> elements, the Tak. that Ive seen call them Apo but they are two element
> ED or fluorite which for the most reasonable is as close to a true Apo
> but not quite.
This is utter bull. Apochromatic refers to level of colour correction.
Show one Tak photograph that shows even the same amount amount of
colour correction as an AP much less one that has less.
Name one source to back up the above. Even R&V, which were big time
buddies with Roland C., had to admit that flourite will allow doublet
APOs.
Gene Horr
genehorr@texas.net
