Looking for feedback regarding DA 18-250mm.

I've been playing around with a lot of older prime lenses on digital recently and CA has rarely been noticeable with any of them, even very cheap lenses.

The only times I have to contend with noticeable CA are with the DA 16-45, DA 10-17 and when using a 2x TC with my 80-200 F2.8. In all cases it's manageable however here's a crop (this is enlarged beyond 1:1) showing an example using my 10-17:




Here's another with my 80-200 F2.8 and 2x TC which shows a fair amount of CA at the lighthouse - it's not too intrusive though:




My most used lenses are the Sigma 10-20 and Pentax 16-45. If I take a shot at 20mm and can't recall what lens was used there is an easy test - if the image shows CA then it's the Pentax, if not then it's the Sigma.

well, I wouldn't say there's no ca (I don't make much effort to discern one type from another....wine on the otherhand...I can tell a merlot from a cabernet-sauvignion, even if I can't spell it).

so here's the thing...
I get some on the 10-17 if I blow the highlights...if I get the highlights right what ever's there seems to get cleaned pretty good in aperture.

my 28-200 is my second worst offender, and even that is fixable, but since that lens gets used for candids, not portraits, I rarely ever blow images up past 8x10 from it. (these days...in the film days 16x20's were common).

my worst offender is my sigma 400mm f4

I shoot weddings...white dresses and black tuxedos indoors and outdoors, artificial and natural light, studio strobes/video hotlights, shade/sun day/night....

my clients get prints from 8x10 to 20x30.

my hardware/software combo must be working cause I'd see the purple in my prints if it wasn't, I'd hear about from my clients also.

Personally, I dont think I've ever had to edit out CA from my photos, and I use the kit 18-55, and the 50mm F/1.4 lenses.
It all depends on what your shooting, but from what I have seen, edges of dark/light boundaries, in usually natural light, is where it occurs most?
Even though it is an annoyance, unless you have images of trees with CA, or something else complicated, it is quite easy to edit it out.

Oh, and Niblue, where is that photo of the lighthouse taken? Is incredible

It's a shot of the Bass Rock in the estuary of the River Forth, taken from North Berwick - http://en.wikipedia.org/wiki/Bass_Rock

It's home to the largest colony of gannets in the world - there are some 80,000 of them and they're all the white dots you can see in the photo. There are trips out there where you can land on the island and take close up shots of the gannets and other seabirds, but I've not done that yet.

Thats awesome
Might take a trip there sometime, if I'm ever up in Scotland, and nearby.