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onemac
Doesn't have much of a life
Joined: Thu Apr 23, 2009 10:14 pm
Posts: 1598
Location: Right here...... Right now.......
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The pics were not taken by me but both were taken on a brand new 50D. I discussed the focus issue at length with the photographer and he took more samples which I will try and put up here later. I do think I have a focus issue with my 40D and 100-400mm lens and have yet to test them with the old tape measure method. Perhaps if the rain holds off at lunchtime??? Al
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Eternally optimistic in a 'glass half empty' sort of way....
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| Mon Dec 07, 2009 9:46 am |
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ProfessorF
What's a life?
Joined: Thu Apr 23, 2009 7:56 pm
Posts: 12030
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There was an issue with some Canon bodies and front/back focus, IIRC. Something to do with body/lens combinations. That's about as much as I know, so might be worth a Google. Or, you could try manual focus like a proper camera. 
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| Mon Dec 07, 2009 2:20 pm |
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HeatherKay
Moderator
Joined: Thu Apr 23, 2009 6:13 pm
Posts: 7262
Location: Here, but not all there.
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Here's a shot I did today. I kept the 50mm wide open for most of the set I've stuck up on Flickr.  Clicky_________________My Flickr | Snaptophobic BloggageHeather Kay: modelling details that matter. "Let my windows be open to receive new ideas but let me also be strong enough not to be blown away by them." - Mahatma Gandhi.
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| Mon Dec 07, 2009 2:29 pm |
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nickminers
Occasionally has a life
Joined: Sun May 03, 2009 7:59 pm
Posts: 292
Location: UK
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Sigma make a 50mm f/2.8 macro in most if not all mounts, and it is very very sharp. Cheap too. I know f/2.8 isn't the fastest, but with 1:1 magnification and a CrAzY minimum aperture of f/45 it's extremely versatile.
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| Mon Dec 07, 2009 2:49 pm |
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timark_uk
Moderator
Joined: Thu Apr 23, 2009 6:11 pm
Posts: 12143
Location: Belfast
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| Mon Dec 07, 2009 2:51 pm |
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HeatherKay
Moderator
Joined: Thu Apr 23, 2009 6:13 pm
Posts: 7262
Location: Here, but not all there.
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Be thankful he didn't use different colours as well...  _________________My Flickr | Snaptophobic BloggageHeather Kay: modelling details that matter. "Let my windows be open to receive new ideas but let me also be strong enough not to be blown away by them." - Mahatma Gandhi.
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| Mon Dec 07, 2009 2:56 pm |
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timark_uk
Moderator
Joined: Thu Apr 23, 2009 6:11 pm
Posts: 12143
Location: Belfast
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I think you just tempted fate, Heather.
Expect colours, sizes and font changes any moment now …
Mark
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| Mon Dec 07, 2009 3:02 pm |
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EddArmitage
I haven't seen my friends in so long
Joined: Thu Apr 23, 2009 9:40 pm
Posts: 5288
Location: ln -s /London ~
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Nick Miners; as crazy as a Sigma lens.
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| Mon Dec 07, 2009 3:10 pm |
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nickminers
Occasionally has a life
Joined: Sun May 03, 2009 7:59 pm
Posts: 292
Location: UK
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ClEaRlY i HaVe LeT tHe SiDe DoWn
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| Mon Dec 07, 2009 3:15 pm |
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EddArmitage
I haven't seen my friends in so long
Joined: Thu Apr 23, 2009 9:40 pm
Posts: 5288
Location: ln -s /London ~
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Only changing colour every word? Boring! And the capitalisation's pretty predictable too... (8-p)
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| Mon Dec 07, 2009 3:17 pm |
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HeatherKay
Moderator
Joined: Thu Apr 23, 2009 6:13 pm
Posts: 7262
Location: Here, but not all there.
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Everyone's a critic. Can you see the amount of markup required to randomly colour each letter? You'd have to be mad to do that.  _________________My Flickr | Snaptophobic BloggageHeather Kay: modelling details that matter. "Let my windows be open to receive new ideas but let me also be strong enough not to be blown away by them." - Mahatma Gandhi.
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| Mon Dec 07, 2009 3:19 pm |
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EddArmitage
I haven't seen my friends in so long
Joined: Thu Apr 23, 2009 9:40 pm
Posts: 5288
Location: ln -s /London ~
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I wrote a python script to generate it once. But yes, the output is messy...
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| Mon Dec 07, 2009 3:22 pm |
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nickminers
Occasionally has a life
Joined: Sun May 03, 2009 7:59 pm
Posts: 292
Location: UK
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MeSsY
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| Mon Dec 07, 2009 3:40 pm |
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EddArmitage
I haven't seen my friends in so long
Joined: Thu Apr 23, 2009 9:40 pm
Posts: 5288
Location: ln -s /London ~
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But much better! Well done!
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| Mon Dec 07, 2009 3:41 pm |
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onemac
Doesn't have much of a life
Joined: Thu Apr 23, 2009 10:14 pm
Posts: 1598
Location: Right here...... Right now.......
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Alex - it's the autofocus that causes the issue. Actually it could be an autofocus AnD Image Stabilisation problem because when IS is switched off (and you use a tripod), the issue is difficult to replicate. Al
_________________
Eternally optimistic in a 'glass half empty' sort of way....
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| Mon Dec 07, 2009 3:51 pm |
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