I almost always (render and) save the image in Poser as a jpg file with the resolution set to 90 or 95. So far I have had good luck this way, with good image quality and a very small file size (usually less than 100kb). I am not sure if this is the same as what you are doing, if not you may want to give it a try rather than saving it as a tif and then converting it - unless you can do so in a program other than Poser, and PhilC suggested. Rob