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FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras 
Thread started 09 Jan 2013 (Wednesday) 15:10
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Canon T3i - Soft Focus Issue

 
Brownlager ­ Photography
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Jan 09, 2013 15:10 |  #1

So am having this crazy issue with soft focus. (To save everyone time, I do know that an open shutter, and a higher stop will help with this, also with in mind I do understand distance and lighting)

I am using the Canon T3i, and it seems I've been dealing with a soft focus issue like crazy. I do a lot of retouching work and fantasy pictures, so clarity is a must. Yet when I set up for a shoot in the studio I'm getting photos of this level of softness (I have center focused as well as used manual focused, zoomed in at x10 in live view - it looks soft in live view too)

So before I go shipping my 'small' business essential away for a week with no backup, I thought I might try to see if there may be something I've missed. I have btw, installed magic lantern with the camera, as I am a filmmaker as well.

http://i.imgur.com/1C3​hE.jpg (external link)




  
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Saint728
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Jan 09, 2013 17:30 |  #2

What lens are you using? Have you tried different lenses? From the looks of your picture nothing really is that sharp. What are your settings for this picture?

Take Care,
Cheers, Patrick


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gjl711
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Jan 09, 2013 17:32 |  #3

Keeping the EXIF with the photo would help.


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Brownlager ­ Photography
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Jan 09, 2013 17:36 as a reply to  @ Saint728's post |  #4

For this, I used the Canon 50mm 1.8 lens. Like I said though, didn't matter what lens I threw on, same effect. I tried the kit lens, a 85mm, and my buddies 1.4mm, with the same results. I bounced the shutter from 60-250, and hit my F-stop from 1.8 to 7.0 with the same effect.

For that photo (it was on a tripod mind you) - I was at a 125 - 1.8 - 400 ISO using a sharpness of 3 on the custom user settings and zeros in the rest.




  
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Saint728
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Jan 09, 2013 18:07 |  #5

Well there is your problem. The Canon 50mm f/1.8 is definitely not sharp wide open. You may want to stop down to f/8 to get sharp results. http://www.the-digital-picture.com …omp=0&FLIComp=0​&APIComp=5 (external link)

Take Care,
Cheers, Patrick


Canon EOS 1Ds Mark III | 17-40mm f/4.0L | 70-200mm f/2.8L USM | 100mm f/2.8L IS Macro | 300mm f/4.0L IS
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john_galt
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Jan 09, 2013 22:11 |  #6

filter?


Gear: 5d iii, 17-40mm l, 24-70mm ii, 35mm 1.4 l, 50mm 1.4, 85mm 1.8, 135mm l, 70-200mm ii l, 600ex-rt

  
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rrblint
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Jan 09, 2013 22:21 |  #7

john_galt wrote in post #15468828 (external link)
filter?

+1

That's what I was going to ask.


Mark

  
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Brownlager ­ Photography
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Jan 10, 2013 06:12 |  #8

No filter - otherwise I would have posted that information. Saint - No. Not the problem. We were getting fantastic photos at 1.8 previously, on top of the fact that we tried to switch the f-stop, all the way to f/8, and to no avail.




  
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sirquack
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Jan 15, 2013 20:12 |  #9

I have finally started to do some test photos and I am seeing the same results. I will do what some of you have suggested and see if I can get any better results. I have been using primarily my 18-55 kit lens, but I will try the other 55-250 kit lens and see if it is tied to a specific lens or the camera in general.


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nccb
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Jan 15, 2013 20:16 |  #10

Can you take some different samples, maybe outdoor in brighter light, on a continuum of some sort (brick wall? fenceline?). And note where *you* think the focus is. then post those pics. It will be easier to see if front or back focusing. A shot like the one you've included it's hard to tell.


5D3 | 24-105mm L | 85mm 1.8

  
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Canon T3i - Soft Focus Issue
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