Nice set Simon, 4 being my fav.

Regards

George

My experience is the same as Percy's, tried using mine a number of times for taking pictures of my kids on bikes/roller blades (not planned shooting, just trying to capture a moment) where the movement is not predictable, ie they suddenly come round the corner and I lift the camera up to get a shot and I struggled to get any in focus. Stick on the Sigma 50-150 or 70-200 and the number of keepers shot up. I shoot a lot of running events and the Sigmas are more reliable for me when I've only got the one chance to catch a moment.

Your carting shots are impressive and show the sharpness and colours well, a reason why I still have my 50-135.

Regards

George

I agree with Percy's comment above. For portraits the 50-135 is very good. Its smaller than the 70-200's as well.
Regards

George

Two very different beasts, I have a sigma 70-200 2.8 (guess is a similar size and weight to Tamron ) and the Pentax 55-300.

The Pentax is a lot smaller, lighter and I use mine when travelling light, holidays etc. The pentax AF can hunt for focus although there are ways round this.

The Sigma (believe the Tamron is similar) I use for sport / fast action which is it very good at, but needs a rucksack or similar to take it anywhere. It will seem very heavy if you are used to a 18-135.

MikeP has the latest sigma 70-200 for sale in the classifieds at a fair price. I have this model and was surprised at how sharp it is wide open. The 55-300 can be had relatively cheaply 2nd hand at the moment, been a few in the classifieds..

Depends how and what you will be using the lens for and only you can answer that.

Regards

George

+1 to above.

Regards

George

Nice set David, 'On top of the world' is my favourite.

Regards

George

Thanks for your MF technique clarification David, which makes sense. Looks like I need to practice more !

Regards

George

I see 9 made their facebook page

https://www.facebook.com/cadwellpark?fref=nf

Very good David, I'm intrigued by your MF Technique ?

Regards

George

Nice set Simon, 9's a cracker followed by 4 and 10. Seems the DA*300 works well, I'll have use mine more although the flexibilty of the sigma 100-300 is a tough one to beat.

Regards

George