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Hi digiBill,
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Yes you can use it the entire zoom range. This is a very strong point. As you can put on the W-con and not be overly limited.
It doesn't seem like much when you look at the focal lengths, but 28mm vs. 35mm is a big difference.
Well, today was not a good day to prove the worth of the W-CON. It was raining all day. Days like this I park my minivan in a good spot, open the side door, set up the tripod, sit my bum down in a small backpacking chair, and start shooting. Then drive on until I find another good spot, and do it all over again. Me and my equipment stay dry, and I still get to shoot. Ah, what a rough day.
LOL - If it rains in heaven, it sure was.It was raining all day. Days like this I park my minivan in a good
spot, open the side door, set up the tripod, sit my bum down in a
small backpacking chair, and start shooting. Then drive on until I
find another good spot, and do it all over again. Me and my
equipment stay dry, and I still get to shoot. Ah, what a rough day.
Ahhhhhhhhhh. Sounds almost like Heaven.
--I like having the lens. When you're looking to focus on a very
close object and get everything else to recede into the distance,
there is a big difference with and without WCON.
One day a month or so ago I was bored, and wondering about this. I
set the camera on a tripod, 109 inches away from a wall. (he wall
had a vertical pattern that made it easy for me to see the edges of
the field and then measure them. I then converted the measurements
to "field of view" in degrees - and this is in the longer (across
in landscape mode) dimension: Here is the data, from narrowest to
widest:
Full zoom with w/ TCON-14B: 10.22 degrees
Full zoom, std. lens 12.56 degrees
Full zoom w/ WCON-08B: 16.50 degrees
Full wide, std. lens: 48.85 degrees
Full wide w/ WCON-08B 59.26 degrees
Note that the "full wide w/ TCON" combination isn't shown because
it doesn't work - major vignetting.
Here's an example of a shot with the WCON - wouldn't have been able
to get the depth of field, "f40" logo so big, and nose so long/far
away without it:
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I have one for sale if you're interested. email me.
I think you would have to decide whether you need a WA or not. I love mine. I used it for about 75% of my furniture showroom shots last Spring and it was the deciding factor in my buying the Sigma 15-30 for my D60. Its also terrific for landscapes--and because it doesn't vignette throughout the zoom, as the TA does, its particularly nice to use. It is a bit heavy but 28-35 for landscape shots or interiors is quite a bit and you will be surprised how much you use it ---IF you shoot this kind of thing. I wish I could point you to some of mine where I used it, but just yesterday I took photos using 24mm, 30mm, 50mm and 70mm with my other camera from the same vantage point for a test (interior shots) and there is a substantial difference between 24 and 30, which is about the same between 28 and 35.
