Chris,
I did my normal RAW image processing on the two images, and will post the
links below. To me, the Telyt has less contrast, but more detail. Your
tastes may vary from mine.
Telyt image:
http://gallery.leica-users.org/v/OldNick/Telyt+Image+After+Processing.jpg.html
Takumar 135 with 2X extender:
http://gallery.leica-users.org/v/OldNick/135+_+2X+Image+After+Processing.jpg.html
Jim Nichols
Tullahoma, TN USA
----- Original Message -----
From: "Chris Trask" <christrask@xxxxxxxxxxxxx>
To: "Olympus Camera Discussion" <olympus@xxxxxxxxxxxxxxxxx>
Sent: Thursday, September 29, 2011 12:58 PM
Subject: Re: [OM] Overextending your reach
> >
>> Rick & Chris,
>>
>> In the interest of evaluating my Soligor (3-element?) extender, I did a
>> crude tripod setup to compare two of my sharper lenses.
>>
>
> <<SNIP>>
>
>>
>> Comparing the two images, I find that the sharpness of the petals is not
> too
>> different, but the warmth of the Telyt is evident compared to the colder
>> color of the Takumar.
>>
>
> <<SNIP>>
>
>>
>> Conclusion: If you want the image to look like it was made with a long
>> tele, get a long tele. The extender won't do it.
>>
>
> I do see a definite difference in the level of red between the two, the
> second one being duller, or perhaps the term "less saturated" is better.
>
> To do a similar test myself, I placed my Tokina 28-70mm on the E-500
> and
> took a photo at 70mm. Then I added the Vivitar 2X telemacro set at
> infinity
> and took the same photo with the Tokina set at 35mm. I did not notice any
> immediate differences in the colour levels or the edge sharpness.
>
> One thing I did notice about the Vivitar telemacro is that the lens
> elements are quite large in diameter, almost twice that of my Sigma and
> Soligor 2X teleconverters. This could likely be the reason for the better
> clarity.
>
> I'm going to set up a more definitive test later, but the first thing I
> need is a good colour chart or even better one of those lens test charts.
> Next time I drop in at the local camera shop I'll see if I can obtain one.
> I don't have a colour printer, so it's no point in downloading one. But,
> I
> do have a small Munsell colour circle in my copy of Sidelinger's "Color
> Manual" that I could use.
>
> Chris
>
> --
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