?ÿ This is now on ebay for $195 starting bid

?ÿ Googling around, it seems the above company own the software rights now. Might be worth contacting them?

Here is the additional equip - will remove the black marker writing on the carrier - one of the crew had a compulsion to write things like "Needs Adju...

The GPSMap 400 series chartplotters - of similar vintage to the 76's - can make good bathymetry rigs too. GPS and sonar reading combined. Garmin Homep...

Benchmark.ca in Calgary is both a Hemisphere and SurvCE dealer - in fact if you google "Hemisphere GNSS, SurvCE", you will get numerous videos from th...

I used a total station. I observed Mars crossing my meridian by the equal altitudes method. I recorded a zenith angle and time shortly before the actu...

4mm. My 3" gun, his 5" gun. fixed height prism poles - no measure up to total station, just delta elevations backsight to foresight. But if there was ...

I'm not intending to be too hard on the Engineer ? . It was shot forward and reverse, yes to a tilting prism,?ÿ and actually, with 2 different guns (m...

Would not?ÿ .02' in lat/long be an ellipsoid distance? Meaning it would require an elevation scale factor? I like the idea, just wondering. ?ÿ

The Wild N2 interests me - not only a tilting level but the telescope can be flipped over, which basically is like a peg test incorporated into every ...

I guess I should have said "aspect ratio", not "resolution", but I think you knew what I meant even if I didn't.

Thanks Wendell - Good to know

Can I ask a question about this? I believe the Surface Pro has an unusual?ÿ 3:2 resolution and if your monitor is , I assume the more common 16:9, how...

Informative replies from everyone - Thanks!

Understood - It just seems like the same conditions that would cause that, would throw any other delicately leveled instrument out of whack also.?ÿ