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<p>I had the same situation: I had upgraded to Win10 and used my Spyder3 there. It worked, did calibrations etc., but I had the impression that something was wrong. So I contacted Datacolor and in the end I bought a Spyder5 with 30% discount and I even got a lenscal with it. And it gave me much better results. Comparing the two profiles, Spyder3 had cut me a lot of greens compared to sRGB and the Spyder5 profile was much better.<br> This is what Datacolor wrote in their answer:<br> "we tested Spyder3 on a few Windows 10 machines, however, depending upon your computer's configuration, the software may run or not run. In order to find this out, you may check it on your computer.<br> We recommend to upgrade to the new Spyder5 with it’s up to 55% Improvement in Low Luminance Accuracy vs. Spyder4 sensors, the interactive Help, the new industrial design including a lens cap for sensor protection, the enhanced SpyderProof functionality, the multiple monitor support for Spyder5EXPRESS, PRO and ELITE and it’s double shielded filters for higher durability and greater longevity. This gives you the ability to show your clients, friends and family calibrated images anywhere."</p>

<p>Can't you just log in to icloud.com on your computer and download the photos there?</p>

<p>Interesting, I once did a similar thing with an analog camera and slide film and I didn't worry about color rendering at the time (just had to choose an appropriate film). A good example of how things can get more complicated when digitalised...many more variables today.</p>

<p>Thank you all for your helpful replies. With that knowledge, I figured out what the problem was. Apparently my Spyder3 wasn't working correctly with Windows 10 or with the updated graphics driver.<br> I didn't see that when calibrating but when looking at my new photos series in lightroom I knew that something was wrong, but I couldn't compare with the state before as I didn't want to roll back the installation. Apparently this just coincided with a series of photos where the histogram looked good in camera but not in lightroom, maybe because of the different camera profile adapted...and they looked bad in LR because my profile was wrong.<br> However, I ordered a new Spyder5 (which I received less than 24h after ordering) and the profile was ways better with that. And also my new photos looked much better...even that the histogram lacks some blacks still in these particular photos, but now I can adjust that confidently.<br> I also compared the two profiles on www.iccview.de and could really see a difference (I have a much bigger color space now).<br> So now I'm all happy with my new Spyder and win10.</p>

<p>My question is: will the histogram in Lightroom look different when the monitor profile is changed or should that allways look the same on the same raw image in lightroom and is independent of the monitor profile?<br />I ask this because I recently updated to Windows 10 and had to recalibrate my monitor with Spyder3 (which is not officially compatible with win10 but does do some calibration...). Now I think I have an issue with the black point of this profile, because many images I work on in Lightroom now have a small flat line on the left side of the histogram and I need to lower black point for each of them.<br />Is it possible that my monitor profile is wrong? Or does the histogram only show the values of the RAW image without considering the monitor profile?</p>