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Community Bot
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I think the fault lies with the PhotoScan software, and not with pyproj or your code. (See this questionSee this question and this post from the Agisoft forums)

Like Andre, I tried several methods to convert WGS84 values -121.330272, 38.547287 into NAD27 / California Zone 2 coordinates.

WGS84 -> Null Shift -> NAD83 -> NADCON -> NAD27 (EPSG:15851)

WGS84 -> Null Shift -> NAD83(HARN) -> NADCON -> NAD83 -> NADCON -> NAD27 (EPSG:8593)

WGS84 -> Geocentric transform -> NAD27 (EPSG: 1173)

All of these methods produced produced coordinates that were ~2ft away from each other, but ~20ft away from the XY value that came from PhotoScan. I wouldn't trust the coordinates to be very accurate if you need to switch datums until they update the software.

I think the fault lies with the PhotoScan software, and not with pyproj or your code. (See this question and this post from the Agisoft forums)

Like Andre, I tried several methods to convert WGS84 values -121.330272, 38.547287 into NAD27 / California Zone 2 coordinates.

WGS84 -> Null Shift -> NAD83 -> NADCON -> NAD27 (EPSG:15851)

WGS84 -> Null Shift -> NAD83(HARN) -> NADCON -> NAD83 -> NADCON -> NAD27 (EPSG:8593)

WGS84 -> Geocentric transform -> NAD27 (EPSG: 1173)

All of these methods produced produced coordinates that were ~2ft away from each other, but ~20ft away from the XY value that came from PhotoScan. I wouldn't trust the coordinates to be very accurate if you need to switch datums until they update the software.

I think the fault lies with the PhotoScan software, and not with pyproj or your code. (See this question and this post from the Agisoft forums)

Like Andre, I tried several methods to convert WGS84 values -121.330272, 38.547287 into NAD27 / California Zone 2 coordinates.

WGS84 -> Null Shift -> NAD83 -> NADCON -> NAD27 (EPSG:15851)

WGS84 -> Null Shift -> NAD83(HARN) -> NADCON -> NAD83 -> NADCON -> NAD27 (EPSG:8593)

WGS84 -> Geocentric transform -> NAD27 (EPSG: 1173)

All of these methods produced produced coordinates that were ~2ft away from each other, but ~20ft away from the XY value that came from PhotoScan. I wouldn't trust the coordinates to be very accurate if you need to switch datums until they update the software.

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Mintx
Mintx
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I think the fault lies with the PhotoScan software, and not with pyproj or your code. (See this question and this post from the Agisoft forums)

Like Andre, I tried several methods to convert WGS84 values -121.330272, 38.547287 into NAD27 / California Zone 2 coordinates.

WGS84 -> Null Shift -> NAD83 -> NADCON -> NAD27 (EPSG:15851)

WGS84 -> Null Shift -> NAD83(HARN) -> NADCON -> NAD83 -> NADCON -> NAD27 (EPSG:8593)

WGS84 -> Geocentric transform -> NAD27 (EPSG: 1173)

All of these methods produced produced coordinates that were ~2ft away from each other, but ~20ft away from the XY value that came from PhotoScan. I wouldn't trust the coordinates to be very accurate if you need to switch datums until they update the software.