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Bosman
15th of November 2006 (Wed), 20:38
Should I get this recalibrated?


Tanron 28-75 2.8 on a Rebel XT all taken on a tripod at around 4 feet using the timer shutter release.

75mm f2.8 (http://idisk.mac.com/ibosco/Public/TamronTest/75mm28.jpg)

75mm f4.0 (http://idisk.mac.com/ibosco/Public/TamronTest/75mm4.0.jpg)

75mm f5.6 (http://idisk.mac.com/ibosco/Public/TamronTest/75mm5.6.jpg)

51mm f2.8 (http://idisk.mac.com/ibosco/Public/TamronTest/51mm2.8.jpg)

51mm f4.0 (http://idisk.mac.com/ibosco/Public/TamronTest/51mm4.0.jpg)

51mm f5.6 (http://idisk.mac.com/ibosco/Public/TamronTest/51mm5.6.jpg)

LightRules
15th of November 2006 (Wed), 23:56
I only looked at the f2.8 shot, but I have no idea where you focused.

Bosman
16th of November 2006 (Thu), 06:43
I used center point focus.

The more I look a it, it seems it is "focusing" to the right of that, at least it seems sharper to the right of the center.

Is this something that can be fixed in calibration of the lens?

runninmann
16th of November 2006 (Thu), 06:45
I used center point focus.

The more I look a it, it seems it is "focusing" to the right of that, at least it seems sharper to the right of the center.

Is this something that can be fixed in calibration of the lens?I believe Lightrules was asking where, in the photograph, you were focusing. Was it the placard, the lady's face, someplace else?

Bosman
16th of November 2006 (Thu), 06:48
The placard the paragraph below "Home Solutions"

rklepper
16th of November 2006 (Thu), 07:00
First ask yourself if you have had the lens long enough to actually get used to the lens. It takes even more to get used to using a lens at f/2.8. The wider the aperture, the more difficult it becomes to focus.