I have a small problem I am hoping someone here could help me with.
Working with complex vectors is much better in Illustrator than in Photoshop but when I create my vectors in Illustrator and then pull them into Photoshop, they always end up being more blurry than when I work in Photoshop alone.
Is there some sort of trick in working between the two to retain pixel perfect bliss?
Vector files don't have a resolution.
Your art in Illustrator is sharp, because it alwas gets rendered new when you zoom in and adapts to the zoom level.
When preparing art for Photoshop, work in "Pixel preview"
And when I am transferring the vector art into photoshop is there one way
that gives better results than another? Generally I just copy paste into my
photoshop canvas, is there a more "correct" way of doing so?
Pasting vector art into Illustrator and keeping as much of it sharp as possible can be a tricky thing depending on the project. It takes some up front planning before and during the design process to get the best results, especially if you're working on something that will have a limited amount of resolution like a web page interface. If your buttons, boxes, etc. that you're designing in Illustrator don't line up with the pixel grid in Photoshop the edges will be blurred and inprecise rather than razor sharp.
It can help to make sure raster effects settings, document size, etc. in Illustrator match up with the document size in Photoshop. Within Illustrator the document either needs to be designed using a pixel-based unit of measure or something that corresponds with it. Hard edged objects (such as a rule line, rectangle, etc.) need to be sized and lined up with the pixel grid to avoid having edges blurred when pasted into Photoshop.
Here's another "gotcha": Photoshop doesn't paste Illustrator artwork into a PSD document precisely. For the past few versions Photoshop often misaligns the artwork when it is pasted. It doesn't matter whether you paste the Illustrator artwork as pixels or paths. Zoom in very tight and the artwork will typically be off between 1/4 and 1/2 pixel -enough to really screw up an intricate web page interface layout. This glitch isn't a big deal as long as both the Illustrator artwork and Photoshop document are properly sized. I just use Photoshop's transform function to resize the Illustrator artwork so it precisely lines up with the Photoshop document. I use the side handles to snap the artwork to the edges of the Photoshop document and then click the check mark. Zoom in tight to check the results. If the Illustrator art was designed with the pixel grid in mind it should line up perfectly once the transform is applied to the pasted artwork.