| Latest Review Posted | Sigma EX DG 15-30mm F3.5-4.5
After I got the 24-70/2.8 I missed a wider lens. As the Pentax 12-24/4 and Pentax 14/2.8 were both out of my reach at the time, I came across this one.
Got it used for the equivalent of $550 from a bloke living just about 40 miles North from me, so I did try both my K10D and a roll of film on it before I got it.
And I LOVE it ever since :)
As you can see on the attached pictures, there is a metal ring siting on the metal hood. The ring has 82mm filter thread and holds the lens cap.
This ring is for digital only, and on 15mm setting there is vignetting even when a slim filter is used. I've got B&W slim polarizer and the amount of vignetting with it can be seen here: http://i737.photobucket.com/albums/xx17/kolista2/Machines/Lenses/Sigma_15-30_d.jpg
For this reason, for digital shooting the ring is OK only without a filter attached. However, when I feel like it, I use filter anyway and then crop the cornes off.
On film, the metal ring has to be taken off and filters can be used at the mount side in a slot provided for that purpose. As I don't have such a filter, I couldn't try this.
Zoom and focus rings are both damped a bit, just enough to feel nice in my hand.
IQ at 15mm is perfect (well for me anyway, don't search for MTF curves here) and I think it remains very good for the whole range.
All in all, if you shoot film as well as chip this lens will not let you down. If I was only a digital guy, I would look for a zoom starting at 10mm or Pentax 12-24/4 i... |
