Timeline for Why am I getting soft images with my Sigma 24-70 f2.8?
Current License: CC BY-SA 3.0
13 events
| when toggle format | what | by | license | comment | |
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| Nov 27, 2020 at 21:02 | answer | added | Ahmar Amjad | timeline score: -1 | |
| Feb 15, 2012 at 9:22 | answer | added | MikeW | timeline score: 0 | |
| Nov 2, 2011 at 22:07 | answer | added | Kendall Helmstetter Gelner | timeline score: 0 | |
| Nov 2, 2011 at 16:41 | answer | added | user7144 | timeline score: 1 | |
| Nov 2, 2011 at 16:04 | comment | added | Geni | Thanks for the feedback! My portrait shots were shot at 1/125 ISO125 at f5.6 using a Canon 530EX flash in studio. I did a lot of experimenting yesterday and shots seem really sharp at f4 with the same ISO and shutter speed, although some are not in focus where I set the focus point (on eyes), pics sharp to the right of where I focused (using centre weighted focusing). I'll run more tests tomorrow again and try manual focus. Thank you all very much! | |
| Nov 2, 2011 at 14:42 | comment | added | Paul Round | @Itai: This lens can give a decent output at f2.8 the problem seems to be with autofocus as the copies I had could both give decent output when manually focused wide open but auto-focus was all over the place. | |
| Nov 2, 2011 at 14:18 | history | tweeted | twitter.com/#!/StackPhotos/status/131736994291265538 | ||
| Nov 2, 2011 at 13:27 | comment | added | Itai | Check the aperture of the soft images. Just because you lens can do F/2.8, it does not mean it is usable. I found that with a number of Sigma lenses (did have that one though) and would only use them at F/4 or smaller, meaning I only ever could use A, M or TAv modes. | |
| Nov 2, 2011 at 13:03 | answer | added | Paul Round | timeline score: 4 | |
| Nov 2, 2011 at 12:53 | comment | added | Viv | Could you please post a soft picture with the EXIF information? | |
| Nov 2, 2011 at 12:05 | comment | added | mattdm | Hi Geni. Welcome to Stack Exchange! Can you post a few sample images? Ideally, both scaled-down full views and some pixel-for-pixel crops as well. And some background questions: does the behavior change at different apertures? Do the images appear soft or do you mean unsharp in some other way? | |
| Nov 2, 2011 at 12:02 | history | edited | mattdm | CC BY-SA 3.0 |
added 2 characters in body; edited tags; edited title
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| Nov 2, 2011 at 11:52 | history | asked | Geni | CC BY-SA 3.0 |