Some tape did the trick for me with the DA40

To say one thing nice about the DA40, it had Quick-shift and the FA43 doesn't

Nathan, 200 watt flash guns have a guide number of around 54 so that's the same as the Pentax 540, 500 watt will give you double that but like you said the pentax flashguns are fine so 200 watt flash would also do the trick

Where do you want to use the head for, studio is a large word.
For products that head would be great since you can adjust it precisely but for portrait I don't know if you want such head since it's slow to use.

I'm not saying it's right or wrong just that you need to think about it if it's the right product.
A ball head probably of centre might be a better options for portrait. link
The good thing about an off centre one is that you keep the lens and the viewfinder on the same height when you switch from landscape to portrait, I still want to get one for my monopod.

Sorry my English is not my native language but now it sounds like a polarised filter will solve the exposure problem but that's not the case!

Here is a tiny bit about those filters link
And here you can see the effect where you can reduce reflection link
Keep in mind though that it can only reduce reflection in one direction, as you can see in the photo it removes the reflection on the side but not the one on the hood of the car since the direction is different you will have the same problem with snow because it isn't smooth.

btw what camera do you use, most of the time the better linear version of the filter works well on Pentax cameras.

The Interfit only activates IR sensitive flashes and the Pentax flash guns are not one of them so you need an IR receiver on their hotshoes like it would be the case with a lot of flashguns, only some studio flashes have an IR trigger inside I believe.

I don't think it's a problem either, but please show me the right bits, since you two say bits they must be small

although we do drift from the original question here, we even talking about Greek now.
Sorry

I don't question you I was just asking... forgot the question mark though

graphê
link link

Is this right, please give me your thought Photomonk, I really don't have the understanding.

Photomonk I can very well be wrong, but I mean ancient Greek.
I believe that in modern Greek the meaning is as you describe.

Sorry but I believe the DA*60-250 is a KAF2 mount (screw-drive + SDM) and not a KAF3 (SDM only).
http://www.pentaximaging.com/camera-lenses/smc_PENTAX_DA_Star_60-250mm_F4_ED_(IF)_SDM/

No not at all.
With snow photography keep in mind that the camera meters grey so when confronted with the white snow it will try to make it grey under exposing your photos so you need to over expose your shots.

Polarizes can take out the reflected so it can remove haze and such making colours more brilliant.
It can be that the cheap filters might have a colour cast but ain't sure about that.

I use a pol 90% of the time, only taking it off with low light since it takes away one stop of light.