Lighroom exports looks unsharp

[blues]

I've got a small problem here. I'm using Lightroom 5 on a Macbook Retina Pro. I'm exporting JPEGs with 700px wide, 100% quality, 300ppi. No sharpening during export.
When i checked the exported JPEGs i noticed that they are unsharp, especially the details. Tried with the sharpening during export, same result. Imported them into lightroom to check it out, again unsharp. For facebook, tumblr I'm using 2048 px wide pictures with the same settings and the images look just fine. I just don't have an idea what's going on. I'm using the small pictures for web, but this way they are unusable. I've got the latest version of Lightroom.
Could you please help? Thx

 

[Eric Rose]

I did a bunch of tests a couple of years ago and compared LR with PS for exporting files to jpg's. In a nut shell LR sucks. PS really destroys the color as well. There has to be a better program out there to do these conversions. I will try my Nikon imaging software and see if that does any better. Personally I never upload anything bigger than 800px wide to FB. FB's compression algorithm really hammers the images.

 

[Loris Medici]

Eric, how PS destroys color? Do you convert to sRGB before saving as JPEG and do you embed the profile into the file? I've used both sRGB and the original profiles with PS and haven't noticed any color destruction - unless you're not using a color-management aware viewer. (In that case sRGB will do the job - most programs assume this profile...)

Edit: I prefer PS for exporting to JPEG because it lets me do finer adjustments in sharpening for the intended final image size. (I prefer high-pass sharpening - for color images: Lab color space and sharpening the lightness channel only - and the effects are adjusted per image and final size basis...) I don't find the three stages sharpening export option in LR particularly useful.

 

[Eric Rose]

Yes I do all those things and yes my system is calibrated. Make an orange square in PS, save it as a psd then save it as a jpg. Bring them both up together, I bet you will see a color shift.

 

[pschwart]

I saved an orange square as a jpg, a tif, and a psd. I closed and reopened each one. I could not detect any color shifts, and the info palette reported the same color numbers for each.

 

[Doyle Thomas]

I saved an orange square as a jpg, a tif, and a psd. I closed and reopened each one. I could not detect any color shifts, and the info palette reported the same color numbers for each.

^^same

 

[Loris Medici]

Could be there is something wrong with your Color preferences. (Auto profile changes and such - don't know...) I never observed such behavior in PS.