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  1. #1
    Join Date
    Mar 2007
    Posts
    2,132

    Question Smugmug sharpening settings

    I've been searching all over and can't seem to find anyone talking about what settings they use for sharpening on Smugmug.

    I've decided to let it handle this and abandon my LR2 -> CS3 batch action which resizes and sharpens for me. This will save me a lot of time and hassle and maybe even give better results at the same time.

    SmugMug uses the Lanczos algorithm to make display copies because it preserves the most detail. It is not often seen in software like Photoshop, because it is CPU-intensive.

    Any time an image is downsampled (to go from your original to SmugMug's large display size, for example), the image loses sharpness. The usual way to restore sharpness is to apply unsharp mask. A typical value, and Photoshop's default, is 50%. By default SmugMug applies only 20% (0.20) because Lanczos does not lose as much sharpness when resizing.
    http://www.smugmug.com/help/display-quality



    Amount
    Radius
    Threshold
    Sigma


    What are your settings?
    Nikon D300 | Tamron 17-50mm f/2.8 | Nikkor AF-S 70-300mm VR | Nikkor AF 35mm f/2 D | SB-600 | Lowepro Voyager C | Lowepro Slingshot 300 AW

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  2. #2
    Join Date
    Aug 2004
    Location
    Northern Colorado, USA
    Posts
    2,225
    This may seem a little too simple. I don't use any specific numbers, and I may use different software than you do, but I just sharpen for my own, on screen display. I haven't seen anything that would disappoint me about the results on smugmug.

    The real issue for sharpening comes when you are going to sharpen for display on a significantly different media, especially at a significantly different size.
    Eric Lund
    Nikon D200
    Nikkors: 17-55mm f2.8, 18-200mm f3.5-f4.5 VR, 70-300mm f4.5-5.6 VR, 35mm f2, 50mm f1.8, 55mm f2.8 AI-S micro, 105mm f2.8 VR micro
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  3. #3
    Join Date
    Mar 2007
    Posts
    2,132
    Well there are 2 advantages to letting Smugmug do this process:

    1. Saves me time by eliminating my batch process for resize/sharpen
    2. Gives better results due to Lanczos algorithm

    It will generate all the different display sizes and do the sharpening for me...I only upload 1 original, instead of 5 of each in different sizes.
    Nikon D300 | Tamron 17-50mm f/2.8 | Nikkor AF-S 70-300mm VR | Nikkor AF 35mm f/2 D | SB-600 | Lowepro Voyager C | Lowepro Slingshot 300 AW

    For Sale:
    Nikkor AF 35mm f/2 D - Like New (FX compatible)

    Wish List
    Nikkor AF-S 17-55 f/2.8
    Nikkor AF-S 70-200 f/4 VRII
    Tokina AF 11-16 f/2.8
    SB-900 (2)
    Umbrellas
    New Tripod

  4. #4
    Join Date
    Mar 2007
    Posts
    2,132
    To the top.
    Nikon D300 | Tamron 17-50mm f/2.8 | Nikkor AF-S 70-300mm VR | Nikkor AF 35mm f/2 D | SB-600 | Lowepro Voyager C | Lowepro Slingshot 300 AW

    For Sale:
    Nikkor AF 35mm f/2 D - Like New (FX compatible)

    Wish List
    Nikkor AF-S 17-55 f/2.8
    Nikkor AF-S 70-200 f/4 VRII
    Tokina AF 11-16 f/2.8
    SB-900 (2)
    Umbrellas
    New Tripod

  5. #5
    Join Date
    Apr 2008
    Location
    Canada
    Posts
    1,153
    I'd like to read or see a reliable source as to why Lanczos would be so amazingly better at something that photoshop has been doing for soo many years.

  6. #6
    Join Date
    Mar 2005
    Posts
    105
    Quote Originally Posted by Csae View Post
    I'd like to read or see a reliable source as to why Lanczos would be so amazingly better at something that photoshop has been doing for soo many years.
    http://www.cambridgeincolour.com/tut...ze-for-web.htm

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