Comments on some test shots please

dazzajl

dazzajl

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Darren
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I need a little help with a new lens I've just got. I don't want to say what's got me asking for opinions yet as I'd rather just see what people have to say.

Here are two shots of no great interest but I'd like to know if anything stands out about them to you.

Ta. :)

picture-2.jpg


picture-1.jpg
 
Might be missing something blatantly obvious to others but the bokeh in - particularly the first shot - is distinctly odd. What is the lens?
 
What is the strange 'star'/ghosting effect in the backgrounds or is it my eyes?
 
The oof background does look 'odd'
 
Well the bokeh does look a bit odd, but the subjects also appear to be well out of focus to me. Images look 'soft' to me with poor contrast. The contrast might be down to the processing, but there's no punch to the pics IMO.
Are you worried the lens has some kind of 'backfocus' issue ?

Rick :)
 
I presume you are referring to the bokeh which I admit does look a bit odd (particlularly in the first one) but it could just be that the OOF elements of the shot are straight trees/branches/twigs which are reflecting the same harsh light that is hitting the subject.

It would interesting to see some pics taken at the same aperture but in a less contrasty area.
 
Speck of dust on the sensor I think Susane, well spotted though I wouldn't have seen that.
 
Freaky b/ground. as some of it is fairly distinguishble , i'd say this i shot at f/4 or f/5.6 ?
 
The bokeh is pretty unpleasant IMO though I can't say how much of this is down to the linear content and fairly high contrast of the background. I wouldn't say based on these images alone there was necessarily a fault with the lens if that's where this could be leading :)

Would the lens in question be the 24-105 f/4 L by any chance as the bokeh on wide open shots with it isn't as smooth as the 24-70 f/2.8 L for example.
 
Not the prettiest bokeh in the world, but that's totally dependent on the nature of the background, how far it is from the main subject, aperture used, and nature of the light. Any lens can produce this sort of bokeh depending on conditions, but I assume you know that anyway Daz, so I guess you're referring to what looks like flare from the top of the frame?

It's hard to tell if those oof highlights in the second shot originate from within the frame or from outside but they do look odd where they meet the 'normal' oof background.

The first shot is the one which really looks suspect out of the two. It does look like flare and it does seem to originate from outside the FOV of the lens?

I assume you were using a lens hood?
 
That looks a lot like the Bokeh produced by the Canon DO lenses... not very nice and the only reason I didnt get the 400f4DOIS... 2nd shot here has the same kind of odd pattern to its bokeh.

The Exif shows that im not even close.. :P what a suprise. :)
 
Without reading the other comments:
What stands out to me is the really crap backgrounds.
All the wavey lines in the shots where light is reflecting back of the shrubs.

Also the subjects are very soft.
 
Think I'd go with it being the 24-105 too. Not the prettiest bokeh (but I forgive mine ;) )

2401.jpg


2407.jpg
 
Thanks for your time everyone. You've all picked upon the things that bothered me, mostly the "odd" bokeh effects. Which as picked up by CT, also can give some strange looking flare effects too.

Oh.... and yes that is muck on my sensor showing in the top left corner. There's actually much more of it hiding in there too. :embarrassed:

Robert, thanks for putting up those shots of yours. Certainly tells me there is nothing wrong with my copy but that is an unusual effect isn't it' Like you I think I'll have to forgive it this little oddity for that fact that it's soooo good at so many other things. After all, now I know what it does with high contrast backgrounds with very close subjects, it's not too much hassle just to use another lens for those shots.

Some of you also mentioned that the subject in both the shots I put up are soft. That's not the lens, both were taken in quite a stong wind and while the shutter speed was probably high enough to freeze the movement, they were blowing around enough to move a fair bit from where the focus was set.

I've done some seperate test for sharpness on the tripod and the results of these have also posed some questions. I think that's more to do with my constant worry that all my lenses for the canon are not good enough though.

I do tend to judge them by the standard set my Mamiya kit and that's not really a fair test at all.

All in all, I think that once I settle into just using this 24-105 and not questioning everything it produces, we'll get on just fine. :D

Thanks again for all your help folks. :)
 
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