The only issue that I have run into is that at times the teleconverters wreak havoc on the Bokeh. It's weird, but sometimes I get beautiful bokehs, sometimes I get odd bokehs were there is destinct details in the background (even though they are faint) and other times the bokeh looks like a bad mirror lens. Some examples:
Nice Bokeh:
with the 1.4x:
http://www.markcassino.com/0002/0002n01.htm
with the 2x:
http://www.markcassino.com/0007/gallery2/0007nbk.htm
Odd Bokeh:
with the 1.4x:
http://www.markcassino.com/0007/gallery1/0007ne.htm
with the 2x:
http://www.markcassino.com/0007/gallery2/0007nbu.htm
Ugly Bokeh:
2x -
http://www.markcassino.com/0007/gallery2/0007ndx.htm
I don't have any uglies with the 1.4x....
The other draw back to the teleconverters is that they do introduce another element of camera shake. I was particularly having problems with the 1.4x-L but found that is was just plain loose, and tightening a screw helped a lot.
- MCC
At 05:53 PM 3/28/01 +0200, you wrote:
Hi,
has anyone tested the Pentax (F)A* 300mm f2.8 with the Pentax
teleconverters.
I'm looking for the best telelens investment, filling the 300-600mm focal
range.
This lens plus teleconverters would give me:
300mm f2.8
420mm f4
600mm f5.6
The 300 f4 lens gives 600 f8, which is a bit slow.
Any opinions?
Frank Wajer
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Mark Cassino
Kalamazoo, MI
[EMAIL PROTECTED]
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Photos:
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