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100-300 vs. 50-200+1.4TC: surprised!

Started Jun 1, 2014 | Discussions thread
Brian Wadie
Brian Wadie Forum Pro • Posts: 11,017
Thanks Luis
1

thanks for this thread Luis, I've been prompted to check the focus adjustment of my "new to me" 50-200 + EC-14 and found that the reason I was losing detail with this combination at distance (compared to the bare lens) was that it need +12 focus adjustment dialled in.

Its is now very similar in sharpness and detail to the bare lens at both long (around 800m) and short range at all focal lengths up to 283mm

(its something I checked and adjusted almost automatically in my canon days but forgot that with the 4/3rds lenses using PDAF, it may also be necessary with the EM-1)

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So much to learn, so little time left to do it!

 Brian Wadie's gear list:Brian Wadie's gear list
Olympus E-M1 III OM-1 Olympus M.Zuiko Digital ED 60mm F2.8 Macro Olympus M.Zuiko ED 75-300mm 1:4.8-6.7 II Olympus 12-45mm F4 Pro +1 more
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