At 300mm is the tokina 100-300mm f/4 mf

Not in the studio or much portrait work, but lots of concert speed. Most in this set where taken with the da 50-135mm

The 50-125 does have a huge focus throw to contend with though compared to other lenses in that range. I bought mine secondhand four years ago maybe even five years ago nd never had any issues with it apart from when I somehow snapped it at the mount....

I have found an AF540 flash for a good price, can someone tell me who has one with a k-5 if the flash keeps up with the 7 fps and at what flash power.

My mets 48 keeps up at 1/8 power and my Yuongnuo 560ii keeps up at 1/4 power.

Thanks in advance

Gary

Cant believe i guessed right lol.

Superb piece of glass, you setting up a lens rental business to pay for it???

Not the 250-600??

I noticed no difference either, i put it down to a placebo effect or just wishful thinking....

Combination of both, i can tell you from my experience the following

K-5 tamron 17-50mm regular focus hunting despite lighting conditions, misfocussing common
K-5 da* 16-50mm less focus hunting, misfocussing less than tamron
K-5 mkii da* 16-50mm very rarely hunts, very rarely misfocusses

When mike says focus is slower than the canon I assume he is talking about tracking speed? My own experience has been hitting static objects the pentax is just as quick as the 1d mkiv which i tried recently at Focus show and compared it directly to my k-5 da* 16-50mm at the canon stand. The canon rep was very impressed when he tried it. As where some other canon users who also tried out the pentax, there was certainly a few wows and ahs from the canon crowd.

In low light the k-5 mkii is king, i regularly shoot in a dark dingy night club and my k-5 mkii da* 16-50 certainly locks on black silhouettes accurately and quickly. I don't use the green focus light either

Lenses also make a difference, my da 35 2.4 focuses fastest out of all my lenses, even thou its screw drive. Obviously the focus throw is going to be smaller on wider lenses when compared to long ranfe zooms.

Great shots, been a long time since I have been to budapest.

I think the problem here is the cars are highly polished creating glare and reflections, this could easily be solved by using a polarizer filter. The problem with glare like that is its very difficult to change in post as the reflections will vary in intensity.