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johnlg wrote:
I've seen the soft glow on images with mine when operating at MFD - seems to be sensitive to light though. I too have had similar shots of damselflies with an almost halo type appearance.
I just assumed it was slightly OOF and due to the light, usually when very bright.
Having said that, it does do quite well with macro too (I accept this isn't a great shot BTW):
https://farm5.staticflickr.com/4331/36559465375_77e4af6db6_z.jpgDragonfly by John Gardiner, on Flickr
Yes, it's quite sensitive to lighting, in low contrast conditions you will hardly notice the 'glow' and it just looks a bit soft. Especially with damselflies (which by definition is close to MFD) the halo effect can be really ugly; it gets worse because of the slender bodies that emphasize the superimposed 'glow' from the OOF background. The problem is usually worst with darker subject against brighter background but it's difficult to predict and you cannot see it very well on the LCD ...
When using PDAF the image can also be 'soft' due to backfocus, the glow will only be very obvious until f/8 or so. You can do good macro within the limitations (avoid minimum MFD and f/4.5-f/8, use Liveview to reduce backfocus). But for me, for my style of shooting, it's a bit too much problems conspiring against the photographer and very few situations where this lens would be my choice for closeups (irrespective of the weight and cost ...).
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