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What's USM?
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tokyoahead
Canon EOS-50D
Canon EF-S 17-55mm f/2.8 IS USM
07/09/2009 08:30:20 AM ·
#1
Hi,
I read a lot here about editing images with "USM". I only know USM Canon lenses... anybody enlighten me?
thanks!
EstimatedEyes
Fujifilm X-T5
Fujifilm XF 16-80mm f/4 R OIS WR
07/09/2009 08:40:09 AM ·
#2
:-) USM means
unsharp mask
, a method of sharpening images in post processing.
faidoi
Pentax K10D
Pentax DA 18-55mm f/3.5-5.6 AF
07/09/2009 08:40:18 AM ·
#3
Unsharp Mask
pineapple
Canon EOS-5D
Canon EF 50mm f/1.4 USM
07/09/2009 08:46:27 AM ·
#4
A
description of Photoshop USM
MelonMusketeer
Nikon D7000
Nikon MF 50mm f/1.4
07/09/2009 09:03:00 AM ·
#5
User Supplied Magic : )
tokyoahead
Canon EOS-50D
Canon EF-S 17-55mm f/2.8 IS USM
07/09/2009 09:21:48 AM ·
#6
thanks all for the detailed responses!
Zeissman
Canon EOS-500D Rebel T1i
Canon EF-S 18-55mm f/3.5-5.6 IS
07/13/2009 12:52:58 PM ·
#7
On the canon lens, it means ultra-sonic motor. which is a quite drive motor for focus.
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