From: Larry Colen
On Dec 15, 2009, at 3:59 PM, Mark Roberts wrote:
On 12/15/09 4:29 PM, Carlos R wrote:
you must be sure you
disengage AF by using both the camera AF/MF switch and also by
pushing
the focusing ring on the lens towards the camera body, as,
unfortunately, these Sigma
Larry,
I see nothing wrong with your test pics. Why is it exactly that you
want to return the lens or send it to Sigma?
BTW, I really like the close-focus feature of my Sigma 24mm. I don't
know why most non-macro Pentax lenses don't focus closer than they do;
I like to get in really close with
On Dec 15, 2009, at 5:19 AM, Miserere wrote:
Larry,
I see nothing wrong with your test pics. Why is it exactly that you
want to return the lens or send it to Sigma?
Because the manual focus on it feels horrible. It's lumpy getting
stiff with every rotation of the auto focus drive screw,
Larry Colen escribió:
Because the manual focus on it feels horrible. It's lumpy getting
stiff with every rotation of the auto focus drive screw, then loose on
the other half. This also sort of makes it tough to focus accurately if
the focus point is where it doesn't want to turn.
If the
On 12/15/09 4:29 PM, Carlos R wrote:
you must be sure you
disengage AF by using both the camera AF/MF switch and also by pushing
the focusing ring on the lens towards the camera body, as,
unfortunately, these Sigma lenses can't deactivate the AF motor in the
camera body only by using the lens
On Dec 15, 2009, at 3:59 PM, Mark Roberts wrote:
On 12/15/09 4:29 PM, Carlos R wrote:
you must be sure you
disengage AF by using both the camera AF/MF switch and also by
pushing
the focusing ring on the lens towards the camera body, as,
unfortunately, these Sigma lenses can't deactivate
I've been putting the Sigma 20/1.8 through its paces today. I need to
decide whether to return it, exchange it at 47st, or send it to Sigma
for repair.
Optically, I have no complaints. There are undoubtably sharper lenses
of about this length, but there aren't many faster, at least not
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