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Go Back   Olympus UK E-System User Group > Cameras, lenses and system accessories > Lens focus > Converters, adapters and extension tubes

Converters, adapters and extension tubes All those lens accessories that get in between the lens and the camera.

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  #31  
Old 13th June 2019
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Re: New MC 20 announced.

It will be interesting to see what the UK price is. €450 is about twice what HDEW have an MC14 for.
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  #32  
Old 13th June 2019
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Re: New MC 20 announced.

I plan to wait until
  1. there are real user reviews of the 40~150 + MC20 (to learn about the bokeh of this combo)
  2. there is some announcement regarding either/both of the Pro Zoom lens shown on the current roadmap (and their compatibility with these TCs)
Given that there will become a choice of achieving zooms in the range 60~250 approx. there's no point in rushing and buying something which doesn't deliver on the IQ.
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  #33  
Old 15th June 2019
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Re: New MC 20 announced.

the EC-20 is excellent … e.g. with the 50-200
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  #34  
Old 15th June 2019
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Re: New MC 20 announced.

Quote:
Originally Posted by RobEW View Post
the EC-20 is excellent … e.g. with the 50-200
From my experience the combination works but not with sharp results though particularly resulting with 400mm F8.0 at the long end (where it's wanted). Maybe it's just with the lens I had too though.
At least an MC20 with the 40-150 F2.8 lens should work OK though with a resulting 80-300mm F5.6.
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  #35  
Old 15th June 2019
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Re: New MC 20 announced.

The 40-150 with the 1.4 TC is already showing notable sharpness fall off IMHO. It will be interesting to see how it performs with the 2.0 TC. My suspicion is that it won't be that good.
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  #36  
Old 16th June 2019
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Re: New MC 20 announced.

Quote:
Originally Posted by pdk42 View Post
The 40-150 with the 1.4 TC is already showing notable sharpness fall off IMHO. It will be interesting to see how it performs with the 2.0 TC. My suspicion is that it won't be that good.
I keep using my 40-150 with the MC14 most of the time, so maybe I'm not seeing how much better it could be without the MC14, because I'm usually wanting maximum reach out of it for a majority of the time. For indoor use (concerts etc) I'd be using just the lens though.
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  #37  
Old 16th June 2019
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Re: New MC 20 announced.

Like you Ross I always leave my 1.4x tc on the 40-150. I didn't think it was much worse in IQ either although I don't think I've ever done a back to back direct comparison. Has anyone else done one? Maybe when I get the MC20 I'll do all three options. I'd certainly like to do a back to back with a Panasonic 100-400 if anyone is up for it and maybe a 300mmf4 too?
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  #38  
Old 16th June 2019
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Re: New MC 20 announced.

Quote:
Originally Posted by Phill D View Post
Like you Ross I always leave my 1.4x tc on the 40-150. I didn't think it was much worse in IQ either although I don't think I've ever done a back to back direct comparison. Has anyone else done one? Maybe when I get the MC20 I'll do all three options. I'd certainly like to do a back to back with a Panasonic 100-400 if anyone is up for it and maybe a 300mmf4 too?
When I got the 300 a couple of years ago I did a brief, rough and ready comparison of it and the 40-150 with and without my MC-14. Hand held, and framing only approximately the same field of view in our back garden.

Scarcely scientific, therefore, but at 100% on screen I couldn’t see consistent resolution degradation on adding the converter to the 300, but I could to the zoom. There’s no way the effect even on the zoom was worryingly visible for real-life image uses, though, and since I don’t produce 20x30” prints I ignore it.

Of course there are various issues with a test like that - aerial perspective (ie much longer air path between target and sensor at 420(840)mm than 40(80)mm) being just one. There are also various potential effects on resolution, microcontrast, CA, distortion, flatness of field etc that are lumped together, and i took a pragmatic view on image stability: ie I was going to be handholding all 4 combinations in real life, so that was how I’d test them.

Is it better in real life to use the 300 alone and crop? Very hard to answer, and it probably depends hugely on exactly what you’re photographing, how fast it moves and how skilful/practiced you are at holding focusing points over the target. i wouldn’t give much credence to any results obtained with the rig on a tripod, or not tested by anyone who wasn’t very experienced with the gear.

I’d add that the effect of adding the Nikkor 1.4 converter to the 70-200 f2.8 VRII I used to have 8-9 years ago was most definitely visible at real-life image output sizes. Like the new Sony converters, the technology has improved a lot in recent years.

The great advantage of using converters these days I’d say is that you can take them off when light levels are low: apart from the magnification the major impact I see is on focusing speed and accuracy in dim light. Having an f2.8 150(300)mm option available is really useful for a lot of wildlife photography, for example.

I can’t find them via a quick web search, but one of the review sites has published MTF charts of the 300 +/- the converter that unsurprisingly do show measurable degradation, but (as with most of this stuff) worrying too much about it borders on measurbation...
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  #39  
Old 16th June 2019
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Re: New MC 20 announced.

I've never really been happy with EC-20/50-200 combo. Mainly I use my EC-20 on my 300/2.8. I'm planning to get the MC-20 for use with my 300/f4 although I'll probably wait for Scott Bourne to test and review it first.
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  #40  
Old 16th June 2019
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Re: New MC 20 announced.

For the wee birds in the garden I need all the magnification I can get so the MC14 stays on the 40-150mm PRO all the time and I can see it being replaced by the MC20 (I have even thought about going back to the 75-300mm but the small aperture at the 300mm end means slow focussing). For bird shows where you can get close and small hall events then the MC14 comes off based on my position. Of course when the birds fly off on a demonstration fly past then even 300mm is no good.
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  #41  
Old 16th June 2019
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Re: New MC 20 announced.

https://www.lenstip.com/478.4-Lens_r...esolution.html

https://www.lenstip.com/479.4-Lens_r...esolution.html
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  #42  
Old 16th June 2019
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Re: New MC 20 announced.

Those weren’t actually on the site I remember (which I still can't now find despite a harder look) but the results look similar.
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Re: New MC 20 announced.

These results pretty much confirm my own thoughts. The 300 carries the TC well. I had no complaints about loss of sharpness when I used it with the TC. However, with the 40-150, the TC definitely takes the edge off. The MTF graphs on the Lenstip site support that view.
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  #44  
Old 17th June 2019
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Re: New MC 20 announced.

Quote:
Originally Posted by pdk42 View Post
These results pretty much confirm my own thoughts. The 300 carries the TC well. I had no complaints about loss of sharpness when I used it with the TC. However, with the 40-150, the TC definitely takes the edge off. The MTF graphs on the Lenstip site support that view.
I don't perceive any noticeable IQ degradation by adding the MC14 to the 300 F/4. I have used the EC14 with the 40-150 F/2.8 however only to limited extent so cannot draw any conclusions from that however the IQ looks good, no complaints from me.
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Old 17th June 2019
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Re: New MC 20 announced.

Quote:
Originally Posted by RobEW View Post
the EC-20 is excellent … e.g. with the 50-200
It wasn't a good combo for me back in the day. IQ was compromised a lot over the EC14.
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