Weather and Windspeed

                                                                            

Beauford	m/s	knopen	km/uur
0 = wind stil	0.0 - 0.2	0	0
1 = zwak	0.3 - 1.5	1 - 3	1 - 5
2 = zwak	1.6 - 3.3	4 - 6	6 - 11
3 = matig	3.4 - 5.4	7 - 10	12 - 19
4 = matig	5.5 - 7.9	11 - 16	20 - 28
5 = vrij krachtig	8.0 - 10.7	17 - 21	29 - 38
6 = krachtig	10.8 - 13.8	22 - 27	39 - 49
7 = hard	13.9 - 17.1	28 - 33	50 - 61
8 = stormachtig	17.2 - 20.7	34 - 40	62 - 74
9 = storm	20.8 - 24.4	41 - 47	75 - 88
10 = zware storm	24.5 - 28.4	48 - 55	89 - 102
11 = zeer zware storm	28.5 - 32.6	56 - 63	103 - 117
12 = orkaan	>32.6	>63	>117

     Windspeed:  Windfinder , WindGURU ,  YR.no (Utr) , Wetter-online , 

                          Meteo-parapente , RASP , Mevoli , Soarfinder
     Weather NL: Buienradar , KNMI , Weerplaza , Weeronline
     Clouds:         Wolkenatlas , Bommeltje
     Traffic:           ANWB

"just hangin' around and playin' naughty games"
 Jean-Baptiste Chandelier

Zeca Bettax

The Zeca Bettax, a folding camera manufactured by the Dresden-based Paul Zeh Kamerawerke (Zeka), or "Zeh Camera Factory" (Zeca = for export), was produced from 1934. 

The Pronto is an earlier version. 

It is a folding camera for 120 roll film (image format 6 x 9 cm or 6 x 4.5 cm), from 1934. 

Lens: Schneider-Kreuznach Radionar 1:4.5/10.5 cm. 

Rotating brilliant viewfinder; fold-out frame viewfinder. 

Shutter speed: Compur (1/25 to 1/125 second, B and T; self-timer).