Hi Alan,
On Mon, 26 Jul 2004 02:09:22 -0700, Alan Chan wrote:
Do you think the wide open sharpness can match the performance of
F/FA*300/4.5 (though I think the chance is slim)? Because if it did, I might
replace mine with the converter to cut down the weight and recover some
cash.
I really
I was shooting some high magnification macro work yesterday fooling with a
macro lens - extension tube - 2X-L teleconverter - camera combination. The
2X-L seemed to perform fairly well based on what I saw in the viewfinder.
I'm hoping it will give me better results than the 2X-S did. I'll have to
Which tripod mount was it? I browsed though BH and there are two. Black one
is for EF200/2.8L only, and the white one is for
EF70-200/4L;300/4L;400/4.5L. I have been toying with the idea to replace the
F*300/4.5 with the A2X-L (for my FA*200/2.8), but I have concern with the
image quality
Sigma does not recommend TC use with this zoom.
I've tried a decent Vivitar 2X Macro TC behind it
near 300mm. Very soft.
-Lon
[EMAIL PROTECTED] wrote:
I have the Sigma 70-300mm APO Zoom. I would like to put lens converter
behind it, probably a 1.4 or 1.7 so I can try to preserve AF. My
I have the Sigma 70-300mm APO Zoom. I would like to put lens converter
behind it, probably a 1.4 or 1.7 so I can try to preserve AF. My
question is whose do I use? Sigma to match optics(?) or the Pentax or
is there another I should consider.
John Graves
with this lens and either TC (I don't use AF with the lens, I was just
playing around one day).
Christian
- Original Message -
From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Thursday, March 04, 2004 2:00 PM
Subject: Lens Converter
I have the Sigma 70-300mm APO Zoom. I would like
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