Soft Focus or Orton Effect create by Photographer Michael Orton. this effect was achieved by overlaying two or more images of an identical scene with different exposures and focus on slide film. you had to use a tripod so your images would align perfectly.
you can achieve the same results with just a single image using Photoshop. This technique will add a vintage dream like feel to your images very suitable for portraits, weddings, landscapes and children photography.
STEP 1: The first thing you are going to do after opening your image in Photoshop is to duplicate your background image in your layers palette. You can do this easily by right-clicking on you background image and selecting “Duplicate Layer..” or by simply dragging the background layer to the “Create a new layer”, Give this layer a Blend Mode of “Soft Light” in your layers palette. This will boost your image contrast a bit but don’t worry about it. The next step will bring it back down.
STEP 2:Next, you are going to convert the original background layer to a Smart Object by right-clicking on it and selecting, you guessed it, “Convert to Smart Object”. This step is important because by using smart filters you will be able to correct and modify the degree in which you apply the blur filter giving you more control over your final image.
You will notice a small icon has been added to the preview image of your layer indicating that it is indeed a smart object.
STEP 3: Still on your original background layer go to the filter menu, choose Blur and from that menu Gaussien Blur to bring the the Gaussian Blur window to the screen
I try not to go overboard with the amount of blur because it will just end up looking really hazy. Instead try to keep it in a range where you can still make out most of the image in your preview window.
STEP 4: You can go back and modify your Gaussien Blur by simply double-clicking on the Gaussien Blur filter layer. This way, thanks to the smart filter, you can gradually dial-in the amount of blur and see how it affects the overall image.
STEP 5: Finally, What I like to add to the blur layer (your original layer) is a Black and White adjustment layer, . found at the bottom of your layers palette. What this will do is desaturate the color thanks to your “Soft Light” blend mode giving your image a soft vintage look. This also helps to bring the high contrast down to a more natural level.
If you find you lost a little too much color, don’t forget to use the opacity to dial some color back in!
Final result :
Source : http://www.photoshoproadmap.com