In article
>In theory the number of lens elements cannot give any
>indication of the overall lens quality. This is certainly
>true for 35mm camera lenses. However for enlarging lenses
>there seems to be three classes: Triotars (three elements),
>four elements, and 6 elements. The six element lenses appear
>to have the greatest degree of optical correction and provide
>the user with the greatest number of "usable" apertures and
>the greatest range of "usable" magnification.
I think the above is generally true if wide coverage is an issue.
If not, there have been some superb 4 element lenses, like the
Ektars and the Schneider Comparons (correct spelling!). I prefer
the Comparons in slightly long focal-lengths for the formats - they
are truly excellent, often faster than the 6 element lenses, and
are often sold used at bargain prices.
Hope this helps.