[Proj] Cape & Hartebeeshoek94 datums

[Zoltan Szecsei]

Hi,
I'm using:
cs2cs +proj=latlong +ellps=clrk80  +to +proj=latlong +ellps=WGS84
19.5 -34.5
19d30'E 34d29'49.424"S 0.288


to convert some coords but the resulting values seem incorrect.
Is it because I need (somehow?) to specify the datums?

I've checked out proj -ld and it doesn't show up.

Can I get the result in decimal degrees to about 9 or 10 places?

I am new to proj, so please could someone assist by showing me what I am 
doing wrong, or how to get the Cape & Haartebeeshoek94 datums into the 
equation.

Thanks,
Zoltan.



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