Greg
KM5D KM24-105
![Image](http://a100km5d.bigblog.com.au/data/3/15222/image/PICT1203edited1486939912886400234520091217095400.jpg)
David, I think your copy of the AF 24-105 (D) was below par. Maybe you should try another sample. I also have one, and I use it as my standard zoom on the A900 with fairly good success. It does have issues but it isn't half as bad as one would think from reading your experiences. The bad points are distortion and vignetting at the short end ... distortion doesn't bother me much with my kind of use (if it does then I can revert to other lenses) but the vignetting at 24 mm is strong, insistent, and annoying; it won't fully disappear even at f/11. On the other hand, the lens is sharp at all focal lengths and has fairly low chromatic aberrations.David Kilpatrick wrote:I sold my AF 24-105 mm which had been a regular companion on the A100-700 models. [...] It simply was not good enough for full frame - really strong barrel distortion at 24 mm, and the worst CA of any lens I had.
If you need an extra full-frame standard zoom for little money then you may consider the old AF 28-85. The combination of range and speed is a bit limited by today's standards but for the money, it's hard to beat.David Kilpatrick wrote:There is a second reasoning behind this - we may just move entirely to full frame in 2010, with an A850, and need an extra standard zoom.
Philip wrote:Olaf, my experience with the 24-105 (in its Sony incarnation) on the A900 was the same as David's, so I got rid of it a year ago - maybe you've just got an exceptionally good example?
Greg and Barry, I've still got my 17-35 G but to be fair hardly use it - I tend to use the 12-24 Sigma for UWA and let the CZ24-70 take care of the rest. It is/was marginally better than the 17-35 Tamron design on the A700, but I got rid of it before I got the A900 so cannot comment on the full frame comparison. The G is not sharp corner to corner even by f8 on the A900!
Philip
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