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View Full Version : HELP! 12-60 SWD Sharp enough Second try


hruissen
30th March 2014, 01:33 PM
My first post on this subject did not contain enough information and I made some mistakes in making the pictures. So here a second try

Every time I take pictures with my E30 and 12-60 SWD and zoom in to 50 to 60 mm, I am a bit disappointed with the results, especially a when doing landscapes or taking pictures of objects quite a distance away. The pictures do not look very sharp.

The weather was good: sunny but a bit hazy; no clear blue sky
- Camera; Oly E30
- Lens Oly 12-60mm SWD
- ISO 100.
- Focal length 60mm
- Taken from a tripod with image stabilisation off
- All camera setting set to neutral (sharpening, etc)
- Al pictures taken as Jpeg and only size reduced to 1000x750 pixels, using PE
- Autofocus used and focus on the book.

The pictures are not brilliant but I tried to make a small test set up with a running show, a bird book and a vase with some wooden spoons. Distance is about 25 meters
(test_12-60_01_.jpg and test_12-60_01_crop.jpg; F4.5, 1/400 sec)


Original
http://e-group.uk.net/gallery/data/500/test_12-60_01.jpg (http://e-group.uk.net/gallery/showphoto.php/photo/71665)


CROP:
http://e-group.uk.net/gallery/data/500/test_12-60_01_crop.jpg (http://e-group.uk.net/gallery/showphoto.php/photo/71666)


I also took some pictures of a tree against the sky. Settings are the same but the distance is about 50m now.( test_12-60_04.jpg and test_12_60_04_crop.jpg; F8.0, 1/500 sec)


Original
http://e-group.uk.net/gallery/data/500/test_12_60_04.jpg (http://e-group.uk.net/gallery/showphoto.php/photo/71668)


CROP
http://e-group.uk.net/gallery/data/500/test_12_60_04_crop.jpg (http://e-group.uk.net/gallery/showphoto.php/photo/71669)


I also took a picture from the book etc much closer by but still with 60mm focus. That one looks pretty sharp to me (test_12_60_03.jpg F8, 1/200 sec). Pictures taken close by look always very sharp and crisp.
http://e-group.uk.net/gallery/data/500/test_12_60_03.jpg (http://e-group.uk.net/gallery/showphoto.php/photo/71667)


Am I correct that the pictures are not sharp (enough) or am I expecting too much now? If you agree that this could be better, what can I do to improve? Is something wrong with the lens? How can I find out what is wrong? Pictures close by and wide angle pictures with the same lens seem to be Ok.

Any suggestions? More information needed?

Thanks in advance

andym
30th March 2014, 03:09 PM
Any chance of trying the first one again at sometime using live view and manual focus with magnification. If this is OK you can discount the lens.
From you first image it's hard to tell but it could be back-focused and you may need to make some calibration in the camera.
I do not have an E30 but I seem to remember it has this facility like the E5.

I might be wrong.

I think with your second picture any auto-focus will struggle as it doesn't know what to focus on.

David M
30th March 2014, 04:09 PM
Is your tripod up to the job and how are you triggering the camera?

hruissen
30th March 2014, 06:44 PM
Hi David,
I think the manfrotto tripod is OK. For taking the pictures I used the settings where the mirror was locked for 2 seconds before the picture is taken.
Henk

hruissen
30th March 2014, 06:47 PM
HI Andy,

I will try to do the Liveview manual focus tomorrow and maybe add some other pictures of trees in the distance. The weather looks promising so I will give it a try.

Any idea where I can find instructions for callibration?

Thanks
Henk

andym
30th March 2014, 07:21 PM
Hi

Well I haven't done this in anger just played about with it but try this.

http://e-group.uk.net/forum/showthread.php?t=8971

hruissen
3rd April 2014, 07:28 AM
Hi Andy,
Thanks for the suggestion. I tried it and it turned out that indeed the focussing was not correct. The focus was set just behind the subject I wanted to focus on. This was especially visible when I used the 60 mm zoom for objects close by. It took a few hours experimenting with the settings to correct this but now I am really satisfied with the results.

Thanks for the help
Henk

andym
3rd April 2014, 07:33 AM
Good to know everything is now OK, glad to have helped.

*yes*yes*yes*yes

Wee man
3rd April 2014, 10:13 AM
Good to hear you got it sorted.