Lots of steps here:

"Using Lr4.1 on PC w/ win7pro laptop with external NEC multisync mmonitor-calibrated,  I've taken Raws made LR adjustments, then imported 3-10 images into photoshop layers for masking, merges, few if any color changes."

How do you get them into PS?  What do you mean by "imported 3-10 images into photoshop"?  Do you mean you use "Edit in.." from LR, and choose "Open as layers in Photoshop..."?

"Then save as all layers as a psd, then flatten the psd and save as a tiff."

How does it look in PS?

"When I open in LR for any other minor tweaks, sharpening, dust spots"

How do you open in LR?  The normal process, after "Edit in..." is that you save in PS, and the image is automatically stacked in LR against the original (or one of the originals, if you open several by "Open as layers in Photoshop...").  How does it look now?

"and do an export into SRGB or Adobe rgb, the colors are terrible.  Look nothing like what I see in LR." 

Only now they look terrible?  They looked OK in LR originally, OK in PS, OK when back in LR, but when you export they look bad - is that right?  And as Victoria says, how are you viewing the exported images? 

"I assume its related to the prophoto RGB color changing, but I really don't know what's going on with the color space." 

It certainly shouldn't be due to colour space changing.  The whole point of colour management is that it deals with this. 

Final points:  you say your monitor is calibrated.  You do mean calibrated and profiled with a hardware instrument (Spyder, Colormunki etc)?

And, color settings in Photoshop, they should look something like this:

Choice of working space should be ProPhoto RGB, Adobe RGB or sRGB, but not a monitor or printer profile.  Policies should all be "Preserve" and I recommend all the "Ask When" boxed be checked (so you are warned of mismatches). 

You have no control over the quality of other user's monitors or whether they are calibrated or not.

All you can do is calibrate your own monitor with a hardware device and export in the sRGB colour space. That will at least give you a fighting chance with all the random computers that may be viewing your images.

Hal

ldbinc wrote:

 

Will a color managed program show the pic the way I see it on other computers?

The problem is, you can't tell how it will look on other computers if they're not colour-managed (with a calibrated/profiled monitor and colour-manged browser). There's no particular "look" of non colour managed computers.  They could vary any which way from a colour-managed monitor.  However, most monitors are very roughly sRGB colour space, so exporting to sRGB is the best guess.