my apologies for being a few days before answering.

As Jonschick has said, this is the lens I got from him previously. It is an absolutely super lens, like he says, I thought it was new when I unboxed it.

comes complete, with the hood, carry bag, box and caps.

It is an asbolutely fab lens just not suited to my airshow stuff.

@ Slmk, sorry, I only deliver within the British Isles.

still available for those interested.

bump and slight reduction.

£300 including delivery.

For sale is one amazing example of the Tokina 80-400 lens.

Comes boxed, with pouch and is in superb condition. I can't say 'as new' because it has been used but it is amazing. why am I getting rid of it? because my main thing is airshows and it does what my 50-500 Sigma does. It's lighter, but I want the extra reach.

The autofocus on my Pentax K3 was super snappy and as a general carry lens its superb.

£300 including RMSD + paypal fee. alternatively cheque and shipping once the cheque clears.

1.03 I didn't want to upgrade the firmware right before I went to farnborough. incidentally I've had the camera since new from january and have about 9000 actuations with nary a problem.

but I've never shot in the heat I had on sunday. that's why I though t it might be the temperature.

it's all I can think of. it almost basically master rest itself to basic

I was in manual mode at the time. all the tweaks turned back on, and RAW went back to PEF format which I never use.

was at Farnborough on saturday. it must have been about 30 degrees or more and my camera was very wappy by 1pm in the afternoon. this is a K3 by the way.

it started acting very wierd. it wouldn't turn off at one point. then when I told it to take a shot. it just sat there like a dummy then took the shot 30 seconds later. after that it was fine.

then unknown to me, for 20 minutes it was shooting jpeg, all the digital lens corrections were on, so NR, shadow correction, shake reduction etc were all engaged. all of the settings just reset. I never have them on for an airshow, I take basic shots and post process so I was baffled by this.

all I can think is that it wigged out from the heat. I was stood on the tarmac apron by the middle of the runway and the surface temperature was 40 degrees plus. I was exposed to the sun and using the camera constantly, no time to be turned off and rest. (I took 2500 shots that day)

anyone else experienced similar?

had it, sold it, regretted it.

I have the bigma but I use it strictly for airshows and a bit of birding. no way would I consider using it for a walk around.

I just got a tokina 80-400 ostensibly to replce the bigma because I'm finding it hard to shoot hand held at airshows. the Tokina is a wonderfully light lens. but if that doesn't play out, then I would buy a DA55-300 again in an instant.

arrived well packed. superb condition. thanks for a great lens

PM sent

to expand on my system settings.

I have a primary boot drive of 128GB SSD. pagefile is set on that to 10gb minimum with 15gb maximum and I have 75GB of free space on it.

H: drive is a 320GB Western Digital SATA drive with 200GB free. the cache locaton for bridge is on H:. cache for photoshop itself is on C:

I have set the bridge and photoshop cache sizes to 12GB and told photoshop to use 75% of available memory.

I have 4GB fitted but as I am running the 32 bit version of windows 7, can only access 3.2GB of it in total.

prior to the crash I have never had this problem at all. it is only with the reinstall. photoshop and bridge have all the same updates on as previously.