NEXT MEETING …    7:30pm Thurs 22nd February 2018:

Shuffell Trophy Round 3 for Prints & PDIs: Subject=Open, in monochrome.  Judge Malcolm MacNaughton

This is the final round of our “Photographer of the Year” trophy and members can enter 2 PDIs and/or 2 Prints.  Images should be in monochrome which is slightly wider than B&W as it allows for sepia etc: anyone wanting help please ask!

Members who haven’t entered the previous rounds might like to try their hand at this round as a prelude to participating next season or of course our “Image of the Year” competition in 3 months time.

DEADLINE for PDI uploads and Print Titles is 15th Feb.

  info@shaftesburycameraclub.org.uk or contact us

Member Western Counties Photographic Federation   §  Affiliated to Photographic Alliance of GB

The following notes might help with preparing PDI (projected digital images) for competitions…

(These hints are in addition to the notes extracted from our competition rules which you can find under the menu item Competions/Print & PDI formats)

1) The club standard for PDIs is 1400 pixels maximum width  &  1050 pixels maximum height

> Full screen is 4:3 aspect ratio, about 1.5 Megapixels, about same no of lines as full HD TV

1400x1050 small_borders> This is the recognised inter-club standard for projecting images

> If your image is portrait format (tall and narrow), your width will be less than 1050

> If your image is letterbox format (i.e. wide), the height will be less than 1050

> If your image is square, the height and width should be 1050

> Always start from jpg, tiff or raw files:   WARNING: bmp, etc are not photographic formats

> You CANNOT swap width for height unless you want the judge to lie on his side!!!

> Smaller images will be projected less than full screen

 

2) It is always best to use Photoshop, PS Elements or Faststone to resize because these use proper photographic principles to minimise loss of detail and sharpness.  First prepare & save your 1400×1050 as a jpg (as tiff formats are too big to upload).

> Avoid resizing in email, browsers, Facebook, etc which only use crude algorithms.  Tablet and smartphone “apps”  are not good at resizing either.

 

3) A little careful sharpening before saving your 1400×1050 images can make a significant improvement.  Treat it like adding salt to a meal: just enough to enhance the flavour but not enough to taste the salt!

> Sharpening is nearly always needed after resizing – it is not cheating!!!

> Unsharp mask (USM) protects edges & detail by increasing local contrast and corrects for sampling errors

> Don’t do too much – avoid halos.  Try 0.5 to 0.9 pixels, 50 to 120% in Photoshop, or Level 14 in Faststone.

> Do ask if you would like further guidance!

 Note: Printed images also often benefit from unsharp masking but the values will be different from those above.  Sharpen  immediately before printing once you have decided print size and finish.  Expensive cameras often have a menu setting to adjust the default sharpening in-camera: if so, the factory default setting is normally quite low.

 

 

Quick links…

PDI Upload (members only)

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Our Noticeboard on the web

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Pixels Our Virtual Workshop

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