I don't think there's anything peculiar to the Technikardan in terms of brightness, ease of focus, etc. when it comes to viewing screens, at least there wasn't to the Technikardan I used to own. There's been a huge number of threads here about viewing screens in general, you might want to take a look at some of them if you haven't already.
FWIW, I switched from the viewing screen that came with my Technikardan (a Linhof plain ground glass screen, much older than 10 years now) to a BosScreen and the improvement was huge. I never had the wax issue others have mentioned with it. I also had a Beattie screen on my Master Technika and didn't care for it, I replaced it with a Maxwell which I thought was a significant improvement. I've owed other kinds of screens on other cameras, e.g. the OE Fresnels on Tachiharas, Ebonys, Chamonix, and Shen Hao. I thought the Maxwell screen was the best of the bunch, followed by the BosScreen. However, it's my understanding that BosScreens are no longer made. I never used a Linhof Fresnel.
Bookmarks