photo sharing and upload picture albums photo forums search pictures popular photos photography help login
Type your message and click Add Comment
It is best to login or register first but you may post as a guest.
Enter an optional name and contact email address. Name
Name Email
help private comment
Wayne Larmon | profile | all galleries >> Individual Photo Sessions >> demos >> Lens tests >> Tamron 28-75mm f/2.8 vs. Canon 17-55 f/2.8 IS >> 'Tim Jackson Chart' Focus Test tree view | thumbnails | slideshow

'Tim Jackson Chart' Focus Test

Done with the focus chart that was developed by Tim Jackson

All shots were done at f/2.8. Auto-Levels was used in PhotoShop CS2. Then they were cropped and downsampled to 800x600 using Bicubic Sharper. (Because we aren't interested in absolute focus for this test--we are interested in front or back focusing.)

17-Can_20D_7607.jpg
17-Can_20D_7607.jpg		 28-Can_20D_7610.jpg
28-Can_20D_7610.jpg		 28-Tam_20D_7598.jpg
28-Tam_20D_7598.jpg		 50-Can-20D_7613.jpg
50-Can-20D_7613.jpg
50-Tam_20D_7602.jpg
50-Tam_20D_7602.jpg		 75-Tam_20D_7604.jpg
75-Tam_20D_7604.jpg

comment | share
click on thumbnails for full image