We have all seen various ways to convert colour images to B&W and there are nearly as many methods as there are photographers. We all have our favourite method and arguments abound as to their various merits - wars have been fought over less.
Well I have just been shown yet another method and it has impressed me so I would like to share it with you in case you also find it usefull.
1. Take one colour image and open it in photoshop.
2. Create an adjustment layer - hue saturation.
3. Create a second hue saturation adjustment layer.
4. The topmost hue saturation adjustment layer should be set to completely desaturated - this gives the B&W effect.
5. The middle layer or bottom hue saturation adjustment layer - set the blend mode to color. (I hate that American spelling)
Now on this middle layer you can slide the hue slider left and right to alter the greytones of the image until you acheive the desired effect. Try it, the difference has to be seen to be believed.
This method offers much more control compared to the simple desaturate method and is one I shall deffinatly be using in future for some of my iamges.
Give it a go and let me know what you think.
Please note these have to be adjustment layers not just dupliacte images that are adjusted for hue saturation. I am not sure if you can create adjustment layers in photoshop elements.
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One shot near to where Max lives

Same shot desaturated only

Now with a second hue saturation layer and played with the hue slide giving a slightly different result

It does depend a lot on the colours in the original image, but it does give you a much better graduation in greyscale tones.