Re: In Search of Ortho-ness

[P3D Paul Talbot <ptww@xxxxxxxxx>]

Grant Campos wrote:

> I'm planning on replacing the plastic lenses in my Kodaslide I's,
> with achromat lenses from Edmund scientific.

Have you considered using the new old-stock Revere (44mm) or Wollensak
(47mm) achromats that DrT sells?
 
> The question is, would it make sense to put 35mm lenses in the
> 5-perf one to use with my Realist and Nimslo slides, and 50mm
> lenses in the 7-perf one to use with my 50mm lens camera's slide
> bar shots?
> (I know I'll have to use my dremmel to let me use 35mm lenses)

Meaning you realize you would need a pretty large lens to cover
5P if the FL is 35mm?  (What diameter would be needed?)

> If I do, will this enable me to take close-ups (2-7 feet) of
> people with the Realist and not get the ET effect?  Or is that
> due to more than just stretch?

By ET effect do you mean really long outstretched arms, or large
nose and ears?  I think of the long arm and fingers problem as a
stretch problem; prominent nose and ears are normally associated
with a perspective problem (taking the picture too close to the
subject).  80 to 105mm camera lens for 35mm format is generally
considered best for producing pleasing portraits.

> Or, should I just put 40mm lenses on both, (sell one of them),
> and use a plus 1 close-up lens and 18.7 mm interocular on the
> Nimslo to take my portraits?

If you really mean a "portrait" you want to go to a longer lens
that will allow greater camera-to-subject distance while keeping
the image size reasonble.  DrT posted something in May about the
good results he achieved taking a portrait of his daughter with
his twin Konicas and slight telephoto lenses (I forget the FL).  I
saw a few of those shots and agree they were quite nice.
 
> I wish I hadn't missed John B's session at the convention!

I wish I hadn't missed the convention.  :(

Paul Talbot


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