Re: [photo-3d] Realist has Soft Focus??

["Dr. George A. Themelis" <drt-3d@xxxxxxx>]

The subject matter should read: "*MY* Realist has
Soft Focus?"

We need to clarify a few issues here.

- How where these pictures taken? Flash?  Tripod?

- When you say that in the hand viewer they looked crisp,
  what viewer is that?

I would not expect the Realist lens to match the sharpness
of a modern SLR lens but I could not call it soft either.

And, if the lens is soft for some reason, you should be
able to see it in a good stereo viewer.   I don't understand
why you don't see it in the viewer while you see in the 
scanned image.

There are ways to check the lens sharpness and focus
in the Realist.  I do it by examining the image on
a ground glass with a good magnifier.

Pictures from my Realist at f11 and flash are extremely
sharp.

George Themelis



>So I conducted a test.  I tried a full length with my SLR using it with the long dimension horizontal to simulate how much of a frame would be used by the realist.  This was shot at 10ft F8.5.  Then I unloaded the roll in the dark and placed it in Realist 1.  I did the same shot at 10ft carefully focused(focus dial also read 10ft, and again at F8.5  Then I varied the focus setting to 15ft, 12ft, 8ft, 6 ft, all shot at 10ft actual.  I then switched the film to Realist 2 and repeated a similar sequence.  My hope was that maybe the focus was off even though at 8.5 I had a decent depth of field.  I then had the single roll of Provia professional 100 ASA film developed.
>
>Result:  After scanning in the frames at 2700 dpi, I found that the Pentax Superprogram SLR produced crisp shots.  They even looked good approaching 300%.  The Realist shots regardless of focus point looked soft at 100% just like the publisher complained.