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Olympus OM-D E-M5 The first Micro Four Thirds camera from Olympus with an integrated Electronic Viewfinder

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  #46  
Old 13th October 2012
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Re: Olympus 6omm f2.8 Images

To Brian1208,
Thank you for your answer. Excellent shots, I was just intrigued as to why you thought that the 75-300 may not have been as capable under these conditions (specifically when not shooting any more open than F5 to F7.). I have the 75-300 and would like to explore it to the best of its and my capabilities.
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  #47  
Old 13th October 2012
brian1208 brian1208 is offline
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Re: Olympus 6omm f2.8 Images

my comments re: the capabilities of the 75-300 to produce this sort of shot wide open are based on over a thousand Bird in Flight shots with it on the EM-5, under a wide range of conditions, from Bird of Prey displays through to "shooting in the rough"

Whilst its a lens I like using and is capable of great results it isn't a fast-focusing lens (for birds in flight) nor can it hold focus on a bird passing in front of a busy background (unless assisted by manual focusing to keep it on the selected spot)

The contrast with the 60mm macro is that there is instant lock on and it seems to hold the focus much more strongly as the bird passes in front of a busy background.

(All this can only be based on my sample of each lens and is limited by any deficiencies in my technique but I'm happy that is is an accurate report on what I am finding)
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  #48  
Old 13th October 2012
wellyboot wellyboot is offline
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Re: Olympus 6omm f2.8 Images

I just want to say that I am in awe of you Brian. Your images are amazing. Thank you for sharing your images, and your knowledge and expertise.
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  #49  
Old 13th October 2012
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Re: Olympus 6omm f2.8 Images

thanks Wellyboot but don't be, there are many much better macro-shooters out there, I just enjoy the natural history side of things and am beginning to get the hang of recording it.

As to "sharing knowledge" that's one way I learn, I don't know what I know until someone asks a question I can help them with (its great getting old and decrepit! )
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Old 13th October 2012
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Re: Olympus 6omm f2.8 Images

Is there anything you can't do with that combination of camera and lens
More awesome macros there Brian.
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  #51  
Old 14th October 2012
brian1208 brian1208 is offline
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Re: Olympus 6omm f2.8 Images

Quote:
Originally Posted by OM USer View Post
To Brian1208,
Thank you for your answer. Excellent shots, I was just intrigued as to why you thought that the 75-300 may not have been as capable under these conditions (specifically when not shooting any more open than F5 to F7.). I have the 75-300 and would like to explore it to the best of its and my capabilities.
I had an interesting confirmation of my thoughts on the difference in focus speed / accuracy of these two lens this morning. Wailking on the top of Hengistbury Head, a local coastal SSI and beauty spot I tried to grab a shot of a passing black-back gull against a slighty misty blue sky. With the 75-300 at f6.3 to f8 it struggled and I eventually had to help it with a bit of manual adjustment. As the gull was circling I switched to the 60mm macro and, bingo, instant focus lock (and focus follow as I shot in 4fps)

I also looked back at the shot of the Swan running on water that I posted yesterday. I had a sequence of around 8 - 10 images shot at 4fps, tracking diagonally toward me and every one is in focus
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  #52  
Old 14th October 2012
jamsa jamsa is offline
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Re: Olympus 6omm f2.8 Images

I would always suspect that fixed focal length lenses are going to be quicker to lock on focus, the more I read about this lens the more I need it!
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  #53  
Old 14th October 2012
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Re: Olympus 6omm f2.8 Images

These were taken with the Panny 100-300 and some through wire or glass...but I think the 60 macro would be perfect even for these occasions.




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  #54  
Old 14th October 2012
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Re: Olympus 6omm f2.8 Images

Jamsa, I love that shot of the monkey (Macaque?), real character in the face
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  #55  
Old 14th October 2012
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Re: Olympus 6omm f2.8 Images

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Originally Posted by brian1208 View Post
Jamsa, I love that shot of the monkey (Macaque?), real character in the face
Yes you are right the Japanese snow monkey/Macaque...right place right time, I have a lot more of their poses tooand soem comical ones but this one was one of the ones I liked most.
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  #56  
Old 14th October 2012
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Re: Olympus 6omm f2.8 Images

A couple of more typical macro subjects in natural light (which is fading fast as Autumn approaches)

Honey Bee feeding on Salvia



Fly on Variegated Laurel

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  #57  
Old 16th October 2012
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Re: Olympus 6omm f2.8 Images

Some more great macro shots on this thread!

I know little (perhaps that should be nothing) about the algorithms that control CDAF but I suspect the strong performance in focussing speed of the 60mm F2.8 is in part due to focussing taking place with the aperture wide open before stopping down to the selected or programmed aperture for actual picture taking and part due to the range locking of the focussing mechanism. With the 75-300 zoom you are at a complete disadvantage as even at the short end you are only just shy of F5. In my naive view I imagine that more light means more detail to process (and more blurring to detect).

On this basis I suspect that the 75mm F1.8 will be equally quick to focus. Would anyone with both lenses care to comment? Thanks.
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  #58  
Old 16th October 2012
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Re: Olympus 6omm f2.8 Images

I had the 45 f1.8 and yes, that is also a very fast, accurate focusing lens as well.

I suspect your reasoning is correct
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