Hi! thanks for the response.
So basicly you are saying that I can't speed up it more (via firmware upgrade) than the speed it already achives?
As I recall the standard hand controller has a high(er) speed mode - did you find that and is it too slow for your purposes?
I don't really understand how you want to use the Merlin for shooting video - what software did you plan to use to control the Merlin mount from your PC for shootyiny video?
Regarding speed - don't forget the Melin mount was designed for use with astrotelescopes - this applcation doesn't demand speed.
Given its relatively low cost, it is considered 'fast enough' for many panoramic photography applications.
Video is something else.
Is there any way to increase the voltage to the DC motors in a safe way so it does not damage the motors?
I alwys use a 12v external power supply. I believe it's OK to go up to 15v, but don't take my word for it.
I would like to try to connect it to my pc. Any port is ok, I just do not know which one is the better / cost effective. I mean, what do you recomend?
If you have particular control software in mind it may demand a particular type of connection.
I use a wireless Bluetooth connection with the Papywizard software running on Windows Pcs, and on Nokia N800 and N810 Internet Tablets.
I use the Deltawave PapyMerlin Bluetooth adapter on the Merlin mount, which was specially desigend for this purpose.
You can get it here:http://www.papymerlin.com/interface-%C3%A9lectronique/
Or from Kolor:http://www.kolor.com/buy/photo-hardware/accessories/recepteur-bluetooth.html#.UM9eTqxFDE4
Or from SkiVR:http://magasin.skivr.com/materiel/rotules/panogear/accessoires-panogear/module-bt-panogear.html
I use a cheap generic Bluetooth USB adapter on the PC; the Nokia Internet Tablets have built-in Bluetooth transceivers.
There is no off-the-shelf wired serial connection kit, you would have to make one using various components. If you wish to do this we can provide more information.