Thanks from me too. I had been wondering.
bb2

Another K20D/Bigma/talent great result.

I recently bought a Sigma 10-20. Am delighted with it despite some reservations at the time. My preference from online research was to get the Sigma 12-24 buts its a bit too expensive. I tried the 10-20 in the shop and it seemed reasonable. Since getting it home and using on my own camera(I did have to adjust the focus position substantially- the K20D is great for that), I've decided it is quite good. No regrets. Interestingly I use the full range from 10 to 20mm.
I also tried the Pentax 12-24. Read mixed reviews on it and it was retailing much more expensive than the Sigma 10-20 so wasn't really an option. Test shots with the Pentax showed why some reviews pan this lens. It had serious CA and purple fringing.
cheers to all
bb2

Tigers are so photogenic. I'd crop close if the photo quality allows.

Hi Mannesty
Hate to correct you. Just fired some bracket shots. Set of 3: o, +2, -2.
Adjustment while holding bracket button and dial 3 or 5 bracket choice with rear wheel and 0.5, 1,1.5 or 2 brackets using front dial. This was on my K20D set in custom menu for 0.5 EV spacings (alt is 0.3). Thats probably clear as mud! See P 129 in the manual.
cheers
bb2

Hi RobE17
Check aurora gallery at www.spaceweather.com
You will see lots of fabulous aurora photos and exif data. I was in Iceland last year in early October. Cloudy and raining most of the time. Fast lenses are good. I did see a spectacular aurora all the same.
Have a great time.
bb2

I have one of these. Works well with Bigma, and should be great with your sigma 180.
cheers
bb2

There's only one to get. The Bigma!
(Sigma 50-500mm zoom)
cheers
bb2

D=y/220 to allow for weekends, vacations, long service leave etc etc is a more common contractors formula in this country. Given you supply equipment etc, perhaps the formula should use a number much lower than 220!
cheers
bb2

Thanks for pointing that out Matt. Should be very handy.
cheers
bb2