pen
I wanted as shallow DOF as I could get and the bokeh was intentional. 4.5 was as open as I could go with this lens. It'll actually go 3.5 I believe but I wasn't able to get any closer without casting my own shadow or reflection.
It wasn't intended to show off the pen, it was to show off the new style tips.
I agree you need more light.
The whole pen looks out of focus to me .
I use a TSE 17mm 1.3 L lens, part of the learning curve is using aperture to focus the subject. Using aperture to focus in the parts of the subject that you want seen.
I would photograph remote live view, or tethered.
Its very simple except it is a big plus that you have a lap top.
your camera will be connected to your PC, and you have full control of the camera settings from your PC.
If you are shooting remote/tethered you will note be casting a shadow from your body. In less it is your camera that is casting a shadow.
Is it possible you are getting camera shake with your long shutter speeds .
Are you using a remote shutter release ?
You can also use shutter 2 second release built into your camera.
Try shinning a flashlight on the subject.
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Farmer.