Re: PHOTO-3D digest 1293

[P3D Eric Goldstein <egoldste@xxxxxxxxxx>]

P3D Bob Howard wrote:
> Amaton Wollensaks they are Cooke Triplets as the Wollensak "tessars" are
> called Raptars.So the f/2.7 is a stretch of the f/3.5 design to get to
> the full stop.

Exactly. That's been my understanding as well, that we're talking about a pair 
of beautifully packaged cooke triplets here on an $800 camera.

The added speed? If f/2.7 is truly the speed of the lens, it would be about 2/3 
of a stop faster (f/2.5 being a full stop from f/3.5?). I suspect it is not, as 
I think it would be hard to stretch a triplet this far without major 
abberations... as I said in a previous post, perhaps an attempt at a marketing 
differentiation, which clearly worked! (Someone replied that the public was/is 
too savy to fall for such a ploy, which I say is dead wrong, the public falls 
for junk like this all the time, then and now.)

I've never shot with a Wollensak myself, and I don't know of anyone who has 
objectively tested them, but I've seen lots of slides shot with them, and I 
must say, subjectively to these eyeballs, that they look no sharper/contrastier 
than any other cooke triplets, and possibly not as good as many a TDC, Realist 
Ilex, or plain old Kodak.

Let the flames begin!   8-)


Eric G.
egoldste@xxxxxx


------------------------------